diff options
Diffstat (limited to 'src/python/grpcio_test/grpc_test')
27 files changed, 4650 insertions, 62 deletions
diff --git a/src/python/grpcio_test/grpc_test/_adapter/_low_test.py b/src/python/grpcio_test/grpc_test/_adapter/_low_test.py index 44fe760fbc..70149127da 100644 --- a/src/python/grpcio_test/grpc_test/_adapter/_low_test.py +++ b/src/python/grpcio_test/grpc_test/_adapter/_low_test.py @@ -52,7 +52,6 @@ def wait_for_events(completion_queues, deadline): def set_ith_result(i, completion_queue): result = completion_queue.next(deadline) with lock: - print i, completion_queue, result, time.time() - deadline results[i] = result for i, completion_queue in enumerate(completion_queues): thread = threading.Thread(target=set_ith_result, @@ -80,10 +79,12 @@ class InsecureServerInsecureClient(unittest.TestCase): del self.client_channel self.client_completion_queue.shutdown() - while self.client_completion_queue.next().type != _types.EventType.QUEUE_SHUTDOWN: + while (self.client_completion_queue.next().type != + _types.EventType.QUEUE_SHUTDOWN): pass self.server_completion_queue.shutdown() - while self.server_completion_queue.next().type != _types.EventType.QUEUE_SHUTDOWN: + while (self.server_completion_queue.next().type != + _types.EventType.QUEUE_SHUTDOWN): pass del self.client_completion_queue @@ -91,58 +92,68 @@ class InsecureServerInsecureClient(unittest.TestCase): del self.server def testEcho(self): - DEADLINE = time.time()+5 - DEADLINE_TOLERANCE = 0.25 - CLIENT_METADATA_ASCII_KEY = 'key' - CLIENT_METADATA_ASCII_VALUE = 'val' - CLIENT_METADATA_BIN_KEY = 'key-bin' - CLIENT_METADATA_BIN_VALUE = b'\0'*1000 - SERVER_INITIAL_METADATA_KEY = 'init_me_me_me' - SERVER_INITIAL_METADATA_VALUE = 'whodawha?' - SERVER_TRAILING_METADATA_KEY = 'california_is_in_a_drought' - SERVER_TRAILING_METADATA_VALUE = 'zomg it is' - SERVER_STATUS_CODE = _types.StatusCode.OK - SERVER_STATUS_DETAILS = 'our work is never over' - REQUEST = 'in death a member of project mayhem has a name' - RESPONSE = 'his name is robert paulson' - METHOD = 'twinkies' - HOST = 'hostess' + deadline = time.time() + 5 + event_time_tolerance = 2 + deadline_tolerance = 0.25 + client_metadata_ascii_key = 'key' + client_metadata_ascii_value = 'val' + client_metadata_bin_key = 'key-bin' + client_metadata_bin_value = b'\0'*1000 + server_initial_metadata_key = 'init_me_me_me' + server_initial_metadata_value = 'whodawha?' + server_trailing_metadata_key = 'california_is_in_a_drought' + server_trailing_metadata_value = 'zomg it is' + server_status_code = _types.StatusCode.OK + server_status_details = 'our work is never over' + request = 'blarghaflargh' + response = 'his name is robert paulson' + method = 'twinkies' + host = 'hostess' server_request_tag = object() - request_call_result = self.server.request_call(self.server_completion_queue, server_request_tag) + request_call_result = self.server.request_call(self.server_completion_queue, + server_request_tag) - self.assertEquals(_types.CallError.OK, request_call_result) + self.assertEqual(_types.CallError.OK, request_call_result) client_call_tag = object() - client_call = self.client_channel.create_call(self.client_completion_queue, METHOD, HOST, DEADLINE) - client_initial_metadata = [(CLIENT_METADATA_ASCII_KEY, CLIENT_METADATA_ASCII_VALUE), (CLIENT_METADATA_BIN_KEY, CLIENT_METADATA_BIN_VALUE)] + client_call = self.client_channel.create_call( + self.client_completion_queue, method, host, deadline) + client_initial_metadata = [ + (client_metadata_ascii_key, client_metadata_ascii_value), + (client_metadata_bin_key, client_metadata_bin_value) + ] client_start_batch_result = client_call.start_batch([ _types.OpArgs.send_initial_metadata(client_initial_metadata), - _types.OpArgs.send_message(REQUEST, 0), + _types.OpArgs.send_message(request, 0), _types.OpArgs.send_close_from_client(), _types.OpArgs.recv_initial_metadata(), _types.OpArgs.recv_message(), _types.OpArgs.recv_status_on_client() ], client_call_tag) - self.assertEquals(_types.CallError.OK, client_start_batch_result) + self.assertEqual(_types.CallError.OK, client_start_batch_result) - client_no_event, request_event, = wait_for_events([self.client_completion_queue, self.server_completion_queue], time.time() + 2) - self.assertEquals(client_no_event, None) - self.assertEquals(_types.EventType.OP_COMPLETE, request_event.type) + client_no_event, request_event, = wait_for_events( + [self.client_completion_queue, self.server_completion_queue], + time.time() + event_time_tolerance) + self.assertEqual(client_no_event, None) + self.assertEqual(_types.EventType.OP_COMPLETE, request_event.type) self.assertIsInstance(request_event.call, _low.Call) self.assertIs(server_request_tag, request_event.tag) - self.assertEquals(1, len(request_event.results)) + self.assertEqual(1, len(request_event.results)) received_initial_metadata = dict(request_event.results[0].initial_metadata) # Check that our metadata were transmitted - self.assertEquals( + self.assertEqual( dict(client_initial_metadata), - dict((x, received_initial_metadata[x]) for x in zip(*client_initial_metadata)[0])) + dict((x, received_initial_metadata[x]) + for x in zip(*client_initial_metadata)[0])) # Check that Python's user agent string is a part of the full user agent # string self.assertIn('Python-gRPC-{}'.format(_grpcio_metadata.__version__), received_initial_metadata['user-agent']) - self.assertEquals(METHOD, request_event.call_details.method) - self.assertEquals(HOST, request_event.call_details.host) - self.assertLess(abs(DEADLINE - request_event.call_details.deadline), DEADLINE_TOLERANCE) + self.assertEqual(method, request_event.call_details.method) + self.assertEqual(host, request_event.call_details.host) + self.assertLess(abs(deadline - request_event.call_details.deadline), + deadline_tolerance) # Check that the channel is connected, and that both it and the call have # the proper target and peer; do this after the first flurry of messages to @@ -155,33 +166,43 @@ class InsecureServerInsecureClient(unittest.TestCase): server_call_tag = object() server_call = request_event.call - server_initial_metadata = [(SERVER_INITIAL_METADATA_KEY, SERVER_INITIAL_METADATA_VALUE)] - server_trailing_metadata = [(SERVER_TRAILING_METADATA_KEY, SERVER_TRAILING_METADATA_VALUE)] + server_initial_metadata = [ + (server_initial_metadata_key, server_initial_metadata_value) + ] + server_trailing_metadata = [ + (server_trailing_metadata_key, server_trailing_metadata_value) + ] server_start_batch_result = server_call.start_batch([ _types.OpArgs.send_initial_metadata(server_initial_metadata), _types.OpArgs.recv_message(), - _types.OpArgs.send_message(RESPONSE, 0), + _types.OpArgs.send_message(response, 0), _types.OpArgs.recv_close_on_server(), - _types.OpArgs.send_status_from_server(server_trailing_metadata, SERVER_STATUS_CODE, SERVER_STATUS_DETAILS) + _types.OpArgs.send_status_from_server( + server_trailing_metadata, server_status_code, server_status_details) ], server_call_tag) - self.assertEquals(_types.CallError.OK, server_start_batch_result) + self.assertEqual(_types.CallError.OK, server_start_batch_result) - client_event, server_event, = wait_for_events([self.client_completion_queue, self.server_completion_queue], time.time() + 1) + client_event, server_event, = wait_for_events( + [self.client_completion_queue, self.server_completion_queue], + time.time() + event_time_tolerance) - self.assertEquals(6, len(client_event.results)) + self.assertEqual(6, len(client_event.results)) found_client_op_types = set() for client_result in client_event.results: - self.assertNotIn(client_result.type, found_client_op_types) # we expect each op type to be unique + # we expect each op type to be unique + self.assertNotIn(client_result.type, found_client_op_types) found_client_op_types.add(client_result.type) if client_result.type == _types.OpType.RECV_INITIAL_METADATA: - self.assertEquals(dict(server_initial_metadata), dict(client_result.initial_metadata)) + self.assertEqual(dict(server_initial_metadata), + dict(client_result.initial_metadata)) elif client_result.type == _types.OpType.RECV_MESSAGE: - self.assertEquals(RESPONSE, client_result.message) + self.assertEqual(response, client_result.message) elif client_result.type == _types.OpType.RECV_STATUS_ON_CLIENT: - self.assertEquals(dict(server_trailing_metadata), dict(client_result.trailing_metadata)) - self.assertEquals(SERVER_STATUS_DETAILS, client_result.status.details) - self.assertEquals(SERVER_STATUS_CODE, client_result.status.code) - self.assertEquals(set([ + self.assertEqual(dict(server_trailing_metadata), + dict(client_result.trailing_metadata)) + self.assertEqual(server_status_details, client_result.status.details) + self.assertEqual(server_status_code, client_result.status.code) + self.assertEqual(set([ _types.OpType.SEND_INITIAL_METADATA, _types.OpType.SEND_MESSAGE, _types.OpType.SEND_CLOSE_FROM_CLIENT, @@ -190,16 +211,16 @@ class InsecureServerInsecureClient(unittest.TestCase): _types.OpType.RECV_STATUS_ON_CLIENT ]), found_client_op_types) - self.assertEquals(5, len(server_event.results)) + self.assertEqual(5, len(server_event.results)) found_server_op_types = set() for server_result in server_event.results: self.assertNotIn(client_result.type, found_server_op_types) found_server_op_types.add(server_result.type) if server_result.type == _types.OpType.RECV_MESSAGE: - self.assertEquals(REQUEST, server_result.message) + self.assertEqual(request, server_result.message) elif server_result.type == _types.OpType.RECV_CLOSE_ON_SERVER: self.assertFalse(server_result.cancelled) - self.assertEquals(set([ + self.assertEqual(set([ _types.OpType.SEND_INITIAL_METADATA, _types.OpType.RECV_MESSAGE, _types.OpType.SEND_MESSAGE, @@ -211,5 +232,81 @@ class InsecureServerInsecureClient(unittest.TestCase): del server_call +class HangingServerShutdown(unittest.TestCase): + + def setUp(self): + self.server_completion_queue = _low.CompletionQueue() + self.server = _low.Server(self.server_completion_queue, []) + self.port = self.server.add_http2_port('[::]:0') + self.client_completion_queue = _low.CompletionQueue() + self.client_channel = _low.Channel('localhost:%d'%self.port, []) + + self.server.start() + + def tearDown(self): + self.server.shutdown() + del self.client_channel + + self.client_completion_queue.shutdown() + self.server_completion_queue.shutdown() + while True: + client_event, server_event = wait_for_events( + [self.client_completion_queue, self.server_completion_queue], + float("+inf")) + if (client_event.type == _types.EventType.QUEUE_SHUTDOWN and + server_event.type == _types.EventType.QUEUE_SHUTDOWN): + break + + del self.client_completion_queue + del self.server_completion_queue + del self.server + + def testHangingServerCall(self): + deadline = time.time() + 5 + deadline_tolerance = 0.25 + event_time_tolerance = 2 + cancel_all_calls_time_tolerance = 0.5 + request = 'blarghaflargh' + method = 'twinkies' + host = 'hostess' + server_request_tag = object() + request_call_result = self.server.request_call(self.server_completion_queue, + server_request_tag) + + client_call_tag = object() + client_call = self.client_channel.create_call(self.client_completion_queue, + method, host, deadline) + client_start_batch_result = client_call.start_batch([ + _types.OpArgs.send_initial_metadata([]), + _types.OpArgs.send_message(request, 0), + _types.OpArgs.send_close_from_client(), + _types.OpArgs.recv_initial_metadata(), + _types.OpArgs.recv_message(), + _types.OpArgs.recv_status_on_client() + ], client_call_tag) + + client_no_event, request_event, = wait_for_events( + [self.client_completion_queue, self.server_completion_queue], + time.time() + event_time_tolerance) + + # Now try to shutdown the server and expect that we see server shutdown + # almost immediately after calling cancel_all_calls. + with self.assertRaises(RuntimeError): + self.server.cancel_all_calls() + shutdown_tag = object() + self.server.shutdown(shutdown_tag) + pre_cancel_timestamp = time.time() + self.server.cancel_all_calls() + finish_shutdown_timestamp = None + client_call_event, server_shutdown_event = wait_for_events( + [self.client_completion_queue, self.server_completion_queue], + time.time() + event_time_tolerance) + self.assertIs(shutdown_tag, server_shutdown_event.tag) + self.assertGreater(pre_cancel_timestamp + cancel_all_calls_time_tolerance, + time.time()) + + del client_call + + if __name__ == '__main__': unittest.main(verbosity=2) diff --git a/src/python/grpcio_test/grpc_test/_core_over_links_base_interface_test.py b/src/python/grpcio_test/grpc_test/_core_over_links_base_interface_test.py new file mode 100644 index 0000000000..72b1ae5642 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/_core_over_links_base_interface_test.py @@ -0,0 +1,165 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Tests the RPC Framework Core's implementation of the Base interface.""" + +import collections +import logging +import random +import time +import unittest + +from grpc._adapter import _intermediary_low +from grpc._links import invocation +from grpc._links import service +from grpc.framework.core import implementations +from grpc.framework.interfaces.base import utilities +from grpc_test import test_common as grpc_test_common +from grpc_test.framework.common import test_constants +from grpc_test.framework.interfaces.base import test_cases +from grpc_test.framework.interfaces.base import test_interfaces + +_INVOCATION_INITIAL_METADATA = ((b'0', b'abc'), (b'1', b'def'), (b'2', b'ghi'),) +_SERVICE_INITIAL_METADATA = ((b'3', b'jkl'), (b'4', b'mno'), (b'5', b'pqr'),) +_SERVICE_TERMINAL_METADATA = ((b'6', b'stu'), (b'7', b'vwx'), (b'8', b'yza'),) +_CODE = _intermediary_low.Code.OK +_MESSAGE = b'test message' + + +class _SerializationBehaviors( + collections.namedtuple( + '_SerializationBehaviors', + ('request_serializers', 'request_deserializers', 'response_serializers', + 'response_deserializers',))): + pass + + +class _Links( + collections.namedtuple( + '_Links', + ('invocation_end_link', 'invocation_grpc_link', 'service_grpc_link', + 'service_end_link'))): + pass + + +def _serialization_behaviors_from_serializations(serializations): + request_serializers = {} + request_deserializers = {} + response_serializers = {} + response_deserializers = {} + for (group, method), serialization in serializations.iteritems(): + request_serializers[group, method] = serialization.serialize_request + request_deserializers[group, method] = serialization.deserialize_request + response_serializers[group, method] = serialization.serialize_response + response_deserializers[group, method] = serialization.deserialize_response + return _SerializationBehaviors( + request_serializers, request_deserializers, response_serializers, + response_deserializers) + + +class _Implementation(test_interfaces.Implementation): + + def instantiate(self, serializations, servicer): + serialization_behaviors = _serialization_behaviors_from_serializations( + serializations) + invocation_end_link = implementations.invocation_end_link() + service_end_link = implementations.service_end_link( + servicer, test_constants.DEFAULT_TIMEOUT, + test_constants.MAXIMUM_TIMEOUT) + service_grpc_link = service.service_link( + serialization_behaviors.request_deserializers, + serialization_behaviors.response_serializers) + port = service_grpc_link.add_port(0, None) + channel = _intermediary_low.Channel('localhost:%d' % port, None) + invocation_grpc_link = invocation.invocation_link( + channel, b'localhost', + serialization_behaviors.request_serializers, + serialization_behaviors.response_deserializers) + + invocation_end_link.join_link(invocation_grpc_link) + invocation_grpc_link.join_link(invocation_end_link) + service_end_link.join_link(service_grpc_link) + service_grpc_link.join_link(service_end_link) + invocation_grpc_link.start() + service_grpc_link.start() + return invocation_end_link, service_end_link, ( + invocation_grpc_link, service_grpc_link) + + def destantiate(self, memo): + invocation_grpc_link, service_grpc_link = memo + invocation_grpc_link.stop() + service_grpc_link.stop_gracefully() + + def invocation_initial_metadata(self): + return _INVOCATION_INITIAL_METADATA + + def service_initial_metadata(self): + return _SERVICE_INITIAL_METADATA + + def invocation_completion(self): + return utilities.completion(None, None, None) + + def service_completion(self): + return utilities.completion(_SERVICE_TERMINAL_METADATA, _CODE, _MESSAGE) + + def metadata_transmitted(self, original_metadata, transmitted_metadata): + return original_metadata is None or grpc_test_common.metadata_transmitted( + original_metadata, transmitted_metadata) + + def completion_transmitted(self, original_completion, transmitted_completion): + if (original_completion.terminal_metadata is not None and + not grpc_test_common.metadata_transmitted( + original_completion.terminal_metadata, + transmitted_completion.terminal_metadata)): + return False + elif original_completion.code is not transmitted_completion.code: + return False + elif original_completion.message != transmitted_completion.message: + return False + else: + return True + + +def setUpModule(): + logging.warn('setUpModule!') + + +def tearDownModule(): + logging.warn('tearDownModule!') + + +def load_tests(loader, tests, pattern): + return unittest.TestSuite( + tests=tuple( + loader.loadTestsFromTestCase(test_case_class) + for test_case_class in test_cases.test_cases(_Implementation()))) + + +if __name__ == '__main__': + unittest.main(verbosity=2) diff --git a/src/python/grpcio_test/grpc_test/_links/_lonely_invocation_link_test.py b/src/python/grpcio_test/grpc_test/_links/_lonely_invocation_link_test.py index abe240e07a..373a2b2a1f 100644 --- a/src/python/grpcio_test/grpc_test/_links/_lonely_invocation_link_test.py +++ b/src/python/grpcio_test/grpc_test/_links/_lonely_invocation_link_test.py @@ -66,7 +66,7 @@ class LonelyInvocationLinkTest(unittest.TestCase): ticket = links.Ticket( test_operation_id, 0, test_group, test_method, links.Ticket.Subscription.FULL, test_constants.SHORT_TIMEOUT, 1, None, - None, None, None, None, termination) + None, None, None, None, termination, None) invocation_link.accept_ticket(ticket) invocation_link_mate.block_until_tickets_satisfy(test_cases.terminated) diff --git a/src/python/grpcio_test/grpc_test/_links/_transmission_test.py b/src/python/grpcio_test/grpc_test/_links/_transmission_test.py index 9cdc9620f0..02ddd512c2 100644 --- a/src/python/grpcio_test/grpc_test/_links/_transmission_test.py +++ b/src/python/grpcio_test/grpc_test/_links/_transmission_test.py @@ -128,14 +128,14 @@ class RoundTripTest(unittest.TestCase): invocation_ticket = links.Ticket( test_operation_id, 0, test_group, test_method, links.Ticket.Subscription.FULL, test_constants.LONG_TIMEOUT, None, None, - None, None, None, None, links.Ticket.Termination.COMPLETION) + None, None, None, None, links.Ticket.Termination.COMPLETION, None) invocation_link.accept_ticket(invocation_ticket) service_mate.block_until_tickets_satisfy(test_cases.terminated) service_ticket = links.Ticket( service_mate.tickets()[-1].operation_id, 0, None, None, None, None, None, None, None, None, test_code, test_message, - links.Ticket.Termination.COMPLETION) + links.Ticket.Termination.COMPLETION, None) service_link.accept_ticket(service_ticket) invocation_mate.block_until_tickets_satisfy(test_cases.terminated) @@ -174,33 +174,34 @@ class RoundTripTest(unittest.TestCase): invocation_ticket = links.Ticket( test_operation_id, 0, test_group, test_method, links.Ticket.Subscription.FULL, test_constants.LONG_TIMEOUT, None, None, - None, None, None, None, None) + None, None, None, None, None, None) invocation_link.accept_ticket(invocation_ticket) requests = scenario.requests() for request_index, request in enumerate(requests): request_ticket = links.Ticket( test_operation_id, 1 + request_index, None, None, None, None, 1, None, - request, None, None, None, None) + request, None, None, None, None, None) invocation_link.accept_ticket(request_ticket) service_mate.block_until_tickets_satisfy( test_cases.at_least_n_payloads_received_predicate(1 + request_index)) response_ticket = links.Ticket( service_mate.tickets()[0].operation_id, request_index, None, None, None, None, 1, None, scenario.response_for_request(request), None, - None, None, None) + None, None, None, None) service_link.accept_ticket(response_ticket) invocation_mate.block_until_tickets_satisfy( test_cases.at_least_n_payloads_received_predicate(1 + request_index)) request_count = len(requests) invocation_completion_ticket = links.Ticket( test_operation_id, request_count + 1, None, None, None, None, None, - None, None, None, None, None, links.Ticket.Termination.COMPLETION) + None, None, None, None, None, links.Ticket.Termination.COMPLETION, + None) invocation_link.accept_ticket(invocation_completion_ticket) service_mate.block_until_tickets_satisfy(test_cases.terminated) service_completion_ticket = links.Ticket( service_mate.tickets()[0].operation_id, request_count, None, None, None, None, None, None, None, None, test_code, test_message, - links.Ticket.Termination.COMPLETION) + links.Ticket.Termination.COMPLETION, None) service_link.accept_ticket(service_completion_ticket) invocation_mate.block_until_tickets_satisfy(test_cases.terminated) diff --git a/src/python/grpcio_test/grpc_test/framework/common/test_constants.py b/src/python/grpcio_test/grpc_test/framework/common/test_constants.py index 3126d0d82c..e1d3c2709d 100644 --- a/src/python/grpcio_test/grpc_test/framework/common/test_constants.py +++ b/src/python/grpcio_test/grpc_test/framework/common/test_constants.py @@ -29,15 +29,25 @@ """Constants shared among tests throughout RPC Framework.""" +# Value for maximum duration in seconds that a test is allowed for its actual +# behavioral logic, excluding all time spent deliberately waiting in the test. +TIME_ALLOWANCE = 10 # Value for maximum duration in seconds of RPCs that may time out as part of a # test. SHORT_TIMEOUT = 4 # Absurdly large value for maximum duration in seconds for should-not-time-out # RPCs made during tests. LONG_TIMEOUT = 3000 +# Values to supply on construction of an object that will service RPCs; these +# should not be used as the actual timeout values of any RPCs made during tests. +DEFAULT_TIMEOUT = 300 +MAXIMUM_TIMEOUT = 3600 # The number of payloads to transmit in streaming tests. STREAM_LENGTH = 200 +# The size of payloads to transmit in tests. +PAYLOAD_SIZE = 256 * 1024 + 17 + # The size of thread pools to use in tests. POOL_SIZE = 10 diff --git a/src/python/grpcio_test/grpc_test/framework/common/test_control.py b/src/python/grpcio_test/grpc_test/framework/common/test_control.py index 3960c4e649..8d6eba5c2c 100644 --- a/src/python/grpcio_test/grpc_test/framework/common/test_control.py +++ b/src/python/grpcio_test/grpc_test/framework/common/test_control.py @@ -34,6 +34,14 @@ import contextlib import threading +class Defect(Exception): + """Simulates a programming defect raised into in a system under test. + + Use of a standard exception type is too easily misconstrued as an actual + defect in either the test infrastructure or the system under test. + """ + + class Control(object): """An object that accepts program control from a system under test. @@ -62,7 +70,7 @@ class PauseFailControl(Control): def control(self): with self._condition: if self._fail: - raise ValueError() + raise Defect() while self._paused: self._condition.wait() diff --git a/src/python/grpcio_test/grpc_test/framework/core/__init__.py b/src/python/grpcio_test/grpc_test/framework/core/__init__.py new file mode 100644 index 0000000000..7086519106 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/core/__init__.py @@ -0,0 +1,30 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + diff --git a/src/python/grpcio_test/grpc_test/framework/core/_base_interface_test.py b/src/python/grpcio_test/grpc_test/framework/core/_base_interface_test.py new file mode 100644 index 0000000000..8d72f131d5 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/core/_base_interface_test.py @@ -0,0 +1,96 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Tests the RPC Framework Core's implementation of the Base interface.""" + +import logging +import random +import time +import unittest + +from grpc.framework.core import implementations +from grpc.framework.interfaces.base import utilities +from grpc_test.framework.common import test_constants +from grpc_test.framework.interfaces.base import test_cases +from grpc_test.framework.interfaces.base import test_interfaces + + +class _Implementation(test_interfaces.Implementation): + + def __init__(self): + self._invocation_initial_metadata = object() + self._service_initial_metadata = object() + self._invocation_terminal_metadata = object() + self._service_terminal_metadata = object() + + def instantiate(self, serializations, servicer): + invocation = implementations.invocation_end_link() + service = implementations.service_end_link( + servicer, test_constants.DEFAULT_TIMEOUT, + test_constants.MAXIMUM_TIMEOUT) + invocation.join_link(service) + service.join_link(invocation) + return invocation, service, None + + def destantiate(self, memo): + pass + + def invocation_initial_metadata(self): + return self._invocation_initial_metadata + + def service_initial_metadata(self): + return self._service_initial_metadata + + def invocation_completion(self): + return utilities.completion(self._invocation_terminal_metadata, None, None) + + def service_completion(self): + return utilities.completion(self._service_terminal_metadata, None, None) + + def metadata_transmitted(self, original_metadata, transmitted_metadata): + return transmitted_metadata is original_metadata + + def completion_transmitted(self, original_completion, transmitted_completion): + return ( + (original_completion.terminal_metadata is + transmitted_completion.terminal_metadata) and + original_completion.code is transmitted_completion.code and + original_completion.message is transmitted_completion.message + ) + + +def load_tests(loader, tests, pattern): + return unittest.TestSuite( + tests=tuple( + loader.loadTestsFromTestCase(test_case_class) + for test_case_class in test_cases.test_cases(_Implementation()))) + + +if __name__ == '__main__': + unittest.main(verbosity=2) diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/base/__init__.py b/src/python/grpcio_test/grpc_test/framework/interfaces/base/__init__.py new file mode 100644 index 0000000000..7086519106 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/base/__init__.py @@ -0,0 +1,30 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/base/_control.py b/src/python/grpcio_test/grpc_test/framework/interfaces/base/_control.py new file mode 100644 index 0000000000..e4d2a7a0d7 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/base/_control.py @@ -0,0 +1,568 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Part of the tests of the base interface of RPC Framework.""" + +import abc +import collections +import enum +import random # pylint: disable=unused-import +import threading +import time + +from grpc.framework.interfaces.base import base +from grpc_test.framework.common import test_constants +from grpc_test.framework.interfaces.base import _sequence +from grpc_test.framework.interfaces.base import _state +from grpc_test.framework.interfaces.base import test_interfaces # pylint: disable=unused-import + +_GROUP = 'base test cases test group' +_METHOD = 'base test cases test method' + +_PAYLOAD_RANDOM_SECTION_MAXIMUM_SIZE = test_constants.PAYLOAD_SIZE / 20 +_MINIMUM_PAYLOAD_SIZE = test_constants.PAYLOAD_SIZE / 600 + + +def _create_payload(randomness): + length = randomness.randint( + _MINIMUM_PAYLOAD_SIZE, test_constants.PAYLOAD_SIZE) + random_section_length = randomness.randint( + 0, min(_PAYLOAD_RANDOM_SECTION_MAXIMUM_SIZE, length)) + random_section = bytes( + bytearray( + randomness.getrandbits(8) for _ in range(random_section_length))) + sevens_section = '\x07' * (length - random_section_length) + return b''.join(randomness.sample((random_section, sevens_section), 2)) + + +def _anything_in_flight(state): + return ( + state.invocation_initial_metadata_in_flight is not None or + state.invocation_payloads_in_flight or + state.invocation_completion_in_flight is not None or + state.service_initial_metadata_in_flight is not None or + state.service_payloads_in_flight or + state.service_completion_in_flight is not None or + 0 < state.invocation_allowance_in_flight or + 0 < state.service_allowance_in_flight + ) + + +def _verify_service_advance_and_update_state( + initial_metadata, payload, completion, allowance, state, implementation): + if initial_metadata is not None: + if state.invocation_initial_metadata_received: + return 'Later invocation initial metadata received: %s' % ( + initial_metadata,) + if state.invocation_payloads_received: + return 'Invocation initial metadata received after payloads: %s' % ( + state.invocation_payloads_received) + if state.invocation_completion_received: + return 'Invocation initial metadata received after invocation completion!' + if not implementation.metadata_transmitted( + state.invocation_initial_metadata_in_flight, initial_metadata): + return 'Invocation initial metadata maltransmitted: %s, %s' % ( + state.invocation_initial_metadata_in_flight, initial_metadata) + else: + state.invocation_initial_metadata_in_flight = None + state.invocation_initial_metadata_received = True + + if payload is not None: + if state.invocation_completion_received: + return 'Invocation payload received after invocation completion!' + elif not state.invocation_payloads_in_flight: + return 'Invocation payload "%s" received but not in flight!' % (payload,) + elif state.invocation_payloads_in_flight[0] != payload: + return 'Invocation payload mismatch: %s, %s' % ( + state.invocation_payloads_in_flight[0], payload) + elif state.service_side_invocation_allowance < 1: + return 'Disallowed invocation payload!' + else: + state.invocation_payloads_in_flight.pop(0) + state.invocation_payloads_received += 1 + state.service_side_invocation_allowance -= 1 + + if completion is not None: + if state.invocation_completion_received: + return 'Later invocation completion received: %s' % (completion,) + elif not implementation.completion_transmitted( + state.invocation_completion_in_flight, completion): + return 'Invocation completion maltransmitted: %s, %s' % ( + state.invocation_completion_in_flight, completion) + else: + state.invocation_completion_in_flight = None + state.invocation_completion_received = True + + if allowance is not None: + if allowance <= 0: + return 'Illegal allowance value: %s' % (allowance,) + else: + state.service_allowance_in_flight -= allowance + state.service_side_service_allowance += allowance + + +def _verify_invocation_advance_and_update_state( + initial_metadata, payload, completion, allowance, state, implementation): + if initial_metadata is not None: + if state.service_initial_metadata_received: + return 'Later service initial metadata received: %s' % (initial_metadata,) + if state.service_payloads_received: + return 'Service initial metadata received after service payloads: %s' % ( + state.service_payloads_received) + if state.service_completion_received: + return 'Service initial metadata received after service completion!' + if not implementation.metadata_transmitted( + state.service_initial_metadata_in_flight, initial_metadata): + return 'Service initial metadata maltransmitted: %s, %s' % ( + state.service_initial_metadata_in_flight, initial_metadata) + else: + state.service_initial_metadata_in_flight = None + state.service_initial_metadata_received = True + + if payload is not None: + if state.service_completion_received: + return 'Service payload received after service completion!' + elif not state.service_payloads_in_flight: + return 'Service payload "%s" received but not in flight!' % (payload,) + elif state.service_payloads_in_flight[0] != payload: + return 'Service payload mismatch: %s, %s' % ( + state.invocation_payloads_in_flight[0], payload) + elif state.invocation_side_service_allowance < 1: + return 'Disallowed service payload!' + else: + state.service_payloads_in_flight.pop(0) + state.service_payloads_received += 1 + state.invocation_side_service_allowance -= 1 + + if completion is not None: + if state.service_completion_received: + return 'Later service completion received: %s' % (completion,) + elif not implementation.completion_transmitted( + state.service_completion_in_flight, completion): + return 'Service completion maltransmitted: %s, %s' % ( + state.service_completion_in_flight, completion) + else: + state.service_completion_in_flight = None + state.service_completion_received = True + + if allowance is not None: + if allowance <= 0: + return 'Illegal allowance value: %s' % (allowance,) + else: + state.invocation_allowance_in_flight -= allowance + state.invocation_side_service_allowance += allowance + + +class Invocation( + collections.namedtuple( + 'Invocation', + ('group', 'method', 'subscription_kind', 'timeout', 'initial_metadata', + 'payload', 'completion',))): + """A description of operation invocation. + + Attributes: + group: The group identifier for the operation. + method: The method identifier for the operation. + subscription_kind: A base.Subscription.Kind value describing the kind of + subscription to use for the operation. + timeout: A duration in seconds to pass as the timeout value for the + operation. + initial_metadata: An object to pass as the initial metadata for the + operation or None. + payload: An object to pass as a payload value for the operation or None. + completion: An object to pass as a completion value for the operation or + None. + """ + + +class OnAdvance( + collections.namedtuple( + 'OnAdvance', + ('kind', 'initial_metadata', 'payload', 'completion', 'allowance'))): + """Describes action to be taken in a test in response to an advance call. + + Attributes: + kind: A Kind value describing the overall kind of response. + initial_metadata: An initial metadata value to pass to a call of the advance + method of the operator under test. Only valid if kind is Kind.ADVANCE and + may be None. + payload: A payload value to pass to a call of the advance method of the + operator under test. Only valid if kind is Kind.ADVANCE and may be None. + completion: A base.Completion value to pass to a call of the advance method + of the operator under test. Only valid if kind is Kind.ADVANCE and may be + None. + allowance: An allowance value to pass to a call of the advance method of the + operator under test. Only valid if kind is Kind.ADVANCE and may be None. + """ + + @enum.unique + class Kind(enum.Enum): + ADVANCE = 'advance' + DEFECT = 'defect' + IDLE = 'idle' + + +_DEFECT_ON_ADVANCE = OnAdvance(OnAdvance.Kind.DEFECT, None, None, None, None) +_IDLE_ON_ADVANCE = OnAdvance(OnAdvance.Kind.IDLE, None, None, None, None) + + +class Instruction( + collections.namedtuple( + 'Instruction', + ('kind', 'advance_args', 'advance_kwargs', 'conclude_success', + 'conclude_message', 'conclude_invocation_outcome', + 'conclude_service_outcome',))): + """""" + + @enum.unique + class Kind(enum.Enum): + ADVANCE = 'ADVANCE' + CANCEL = 'CANCEL' + CONCLUDE = 'CONCLUDE' + + +class Controller(object): + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def failed(self, message): + """""" + raise NotImplementedError() + + @abc.abstractmethod + def serialize_request(self, request): + """""" + raise NotImplementedError() + + @abc.abstractmethod + def deserialize_request(self, serialized_request): + """""" + raise NotImplementedError() + + @abc.abstractmethod + def serialize_response(self, response): + """""" + raise NotImplementedError() + + @abc.abstractmethod + def deserialize_response(self, serialized_response): + """""" + raise NotImplementedError() + + @abc.abstractmethod + def invocation(self): + """""" + raise NotImplementedError() + + @abc.abstractmethod + def poll(self): + """""" + raise NotImplementedError() + + @abc.abstractmethod + def on_service_advance( + self, initial_metadata, payload, completion, allowance): + """""" + raise NotImplementedError() + + @abc.abstractmethod + def on_invocation_advance( + self, initial_metadata, payload, completion, allowance): + """""" + raise NotImplementedError() + + @abc.abstractmethod + def service_on_termination(self, outcome): + """""" + raise NotImplementedError() + + @abc.abstractmethod + def invocation_on_termination(self, outcome): + """""" + raise NotImplementedError() + + +class ControllerCreator(object): + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def name(self): + """""" + raise NotImplementedError() + + @abc.abstractmethod + def controller(self, implementation, randomness): + """""" + raise NotImplementedError() + + +class _Remainder( + collections.namedtuple( + '_Remainder', + ('invocation_payloads', 'service_payloads', 'invocation_completion', + 'service_completion',))): + """Describes work remaining to be done in a portion of a test. + + Attributes: + invocation_payloads: The number of payloads to be sent from the invocation + side of the operation to the service side of the operation. + service_payloads: The number of payloads to be sent from the service side of + the operation to the invocation side of the operation. + invocation_completion: Whether or not completion from the invocation side of + the operation should be indicated and has yet to be indicated. + service_completion: Whether or not completion from the service side of the + operation should be indicated and has yet to be indicated. + """ + + +class _SequenceController(Controller): + + def __init__(self, sequence, implementation, randomness): + """Constructor. + + Args: + sequence: A _sequence.Sequence describing the steps to be taken in the + test at a relatively high level. + implementation: A test_interfaces.Implementation encapsulating the + base interface implementation that is the system under test. + randomness: A random.Random instance for use in the test. + """ + self._condition = threading.Condition() + self._sequence = sequence + self._implementation = implementation + self._randomness = randomness + + self._until = None + self._remaining_elements = None + self._poll_next = None + self._message = None + + self._state = _state.OperationState() + self._todo = None + + # called with self._condition + def _failed(self, message): + self._message = message + self._condition.notify_all() + + def _passed(self, invocation_outcome, service_outcome): + self._poll_next = Instruction( + Instruction.Kind.CONCLUDE, None, None, True, None, invocation_outcome, + service_outcome) + self._condition.notify_all() + + def failed(self, message): + with self._condition: + self._failed(message) + + def serialize_request(self, request): + return request + request + + def deserialize_request(self, serialized_request): + return serialized_request[:len(serialized_request) / 2] + + def serialize_response(self, response): + return response * 3 + + def deserialize_response(self, serialized_response): + return serialized_response[2 * len(serialized_response) / 3:] + + def invocation(self): + with self._condition: + self._until = time.time() + self._sequence.maximum_duration + self._remaining_elements = list(self._sequence.elements) + if self._sequence.invocation.initial_metadata: + initial_metadata = self._implementation.invocation_initial_metadata() + self._state.invocation_initial_metadata_in_flight = initial_metadata + else: + initial_metadata = None + if self._sequence.invocation.payload: + payload = _create_payload(self._randomness) + self._state.invocation_payloads_in_flight.append(payload) + else: + payload = None + if self._sequence.invocation.complete: + completion = self._implementation.invocation_completion() + self._state.invocation_completion_in_flight = completion + else: + completion = None + return Invocation( + _GROUP, _METHOD, base.Subscription.Kind.FULL, + self._sequence.invocation.timeout, initial_metadata, payload, + completion) + + def poll(self): + with self._condition: + while True: + if self._message is not None: + return Instruction( + Instruction.Kind.CONCLUDE, None, None, False, self._message, None, + None) + elif self._poll_next: + poll_next = self._poll_next + self._poll_next = None + return poll_next + elif self._until < time.time(): + return Instruction( + Instruction.Kind.CONCLUDE, None, None, False, + 'overran allotted time!', None, None) + else: + self._condition.wait(timeout=self._until-time.time()) + + def on_service_advance( + self, initial_metadata, payload, completion, allowance): + with self._condition: + message = _verify_service_advance_and_update_state( + initial_metadata, payload, completion, allowance, self._state, + self._implementation) + if message is not None: + self._failed(message) + if self._todo is not None: + raise ValueError('TODO!!!') + elif _anything_in_flight(self._state): + return _IDLE_ON_ADVANCE + elif self._remaining_elements: + element = self._remaining_elements.pop(0) + if element.kind is _sequence.Element.Kind.SERVICE_TRANSMISSION: + if element.transmission.initial_metadata: + initial_metadata = self._implementation.service_initial_metadata() + self._state.service_initial_metadata_in_flight = initial_metadata + else: + initial_metadata = None + if element.transmission.payload: + payload = _create_payload(self._randomness) + self._state.service_payloads_in_flight.append(payload) + self._state.service_side_service_allowance -= 1 + else: + payload = None + if element.transmission.complete: + completion = self._implementation.service_completion() + self._state.service_completion_in_flight = completion + else: + completion = None + if (not self._state.invocation_completion_received and + 0 <= self._state.service_side_invocation_allowance): + allowance = 1 + self._state.service_side_invocation_allowance += 1 + self._state.invocation_allowance_in_flight += 1 + else: + allowance = None + return OnAdvance( + OnAdvance.Kind.ADVANCE, initial_metadata, payload, completion, + allowance) + else: + raise ValueError('TODO!!!') + else: + return _IDLE_ON_ADVANCE + + def on_invocation_advance( + self, initial_metadata, payload, completion, allowance): + with self._condition: + message = _verify_invocation_advance_and_update_state( + initial_metadata, payload, completion, allowance, self._state, + self._implementation) + if message is not None: + self._failed(message) + if self._todo is not None: + raise ValueError('TODO!!!') + elif _anything_in_flight(self._state): + return _IDLE_ON_ADVANCE + elif self._remaining_elements: + element = self._remaining_elements.pop(0) + if element.kind is _sequence.Element.Kind.INVOCATION_TRANSMISSION: + if element.transmission.initial_metadata: + initial_metadata = self._implementation.invocation_initial_metadata() + self._state.invocation_initial_metadata_in_fight = initial_metadata + else: + initial_metadata = None + if element.transmission.payload: + payload = _create_payload(self._randomness) + self._state.invocation_payloads_in_flight.append(payload) + self._state.invocation_side_invocation_allowance -= 1 + else: + payload = None + if element.transmission.complete: + completion = self._implementation.invocation_completion() + self._state.invocation_completion_in_flight = completion + else: + completion = None + if (not self._state.service_completion_received and + 0 <= self._state.invocation_side_service_allowance): + allowance = 1 + self._state.invocation_side_service_allowance += 1 + self._state.service_allowance_in_flight += 1 + else: + allowance = None + return OnAdvance( + OnAdvance.Kind.ADVANCE, initial_metadata, payload, completion, + allowance) + else: + raise ValueError('TODO!!!') + else: + return _IDLE_ON_ADVANCE + + def service_on_termination(self, outcome): + with self._condition: + self._state.service_side_outcome = outcome + if self._todo is not None or self._remaining_elements: + self._failed('Premature service-side outcome %s!' % (outcome,)) + elif outcome is not self._sequence.outcome.service: + self._failed( + 'Incorrect service-side outcome: %s should have been %s' % ( + outcome, self._sequence.outcome.service)) + elif self._state.invocation_side_outcome is not None: + self._passed(self._state.invocation_side_outcome, outcome) + + def invocation_on_termination(self, outcome): + with self._condition: + self._state.invocation_side_outcome = outcome + if self._todo is not None or self._remaining_elements: + self._failed('Premature invocation-side outcome %s!' % (outcome,)) + elif outcome is not self._sequence.outcome.invocation: + self._failed( + 'Incorrect invocation-side outcome: %s should have been %s' % ( + outcome, self._sequence.outcome.invocation)) + elif self._state.service_side_outcome is not None: + self._passed(outcome, self._state.service_side_outcome) + + +class _SequenceControllerCreator(ControllerCreator): + + def __init__(self, sequence): + self._sequence = sequence + + def name(self): + return self._sequence.name + + def controller(self, implementation, randomness): + return _SequenceController(self._sequence, implementation, randomness) + + +CONTROLLER_CREATORS = tuple( + _SequenceControllerCreator(sequence) for sequence in _sequence.SEQUENCES) diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/base/_sequence.py b/src/python/grpcio_test/grpc_test/framework/interfaces/base/_sequence.py new file mode 100644 index 0000000000..1d77aaebe6 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/base/_sequence.py @@ -0,0 +1,168 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Part of the tests of the base interface of RPC Framework.""" + +import collections +import enum + +from grpc.framework.interfaces.base import base +from grpc_test.framework.common import test_constants + + +class Invocation( + collections.namedtuple( + 'Invocation', ('timeout', 'initial_metadata', 'payload', 'complete',))): + """A recipe for operation invocation. + + Attributes: + timeout: A duration in seconds to pass to the system under test as the + operation's timeout value. + initial_metadata: A boolean indicating whether or not to pass initial + metadata when invoking the operation. + payload: A boolean indicating whether or not to pass a payload when + invoking the operation. + complete: A boolean indicating whether or not to indicate completion of + transmissions from the invoking side of the operation when invoking the + operation. + """ + + +class Transmission( + collections.namedtuple( + 'Transmission', ('initial_metadata', 'payload', 'complete',))): + """A recipe for a single transmission in an operation. + + Attributes: + initial_metadata: A boolean indicating whether or not to pass initial + metadata as part of the transmission. + payload: A boolean indicating whether or not to pass a payload as part of + the transmission. + complete: A boolean indicating whether or not to indicate completion of + transmission from the transmitting side of the operation as part of the + transmission. + """ + + +class Intertransmission( + collections.namedtuple('Intertransmission', ('invocation', 'service',))): + """A recipe for multiple transmissions in an operation. + + Attributes: + invocation: An integer describing the number of payloads to send from the + invocation side of the operation to the service side. + service: An integer describing the number of payloads to send from the + service side of the operation to the invocation side. + """ + + +class Element(collections.namedtuple('Element', ('kind', 'transmission',))): + """A sum type for steps to perform when testing an operation. + + Attributes: + kind: A Kind value describing the kind of step to perform in the test. + transmission: Only valid for kinds Kind.INVOCATION_TRANSMISSION and + Kind.SERVICE_TRANSMISSION, a Transmission value describing the details of + the transmission to be made. + """ + + @enum.unique + class Kind(enum.Enum): + INVOCATION_TRANSMISSION = 'invocation transmission' + SERVICE_TRANSMISSION = 'service transmission' + INTERTRANSMISSION = 'intertransmission' + INVOCATION_CANCEL = 'invocation cancel' + SERVICE_CANCEL = 'service cancel' + INVOCATION_FAILURE = 'invocation failure' + SERVICE_FAILURE = 'service failure' + + +class Outcome(collections.namedtuple('Outcome', ('invocation', 'service',))): + """A description of the expected outcome of an operation test. + + Attributes: + invocation: The base.Outcome value expected on the invocation side of the + operation. + service: The base.Outcome value expected on the service side of the + operation. + """ + + +class Sequence( + collections.namedtuple( + 'Sequence', + ('name', 'maximum_duration', 'invocation', 'elements', 'outcome',))): + """Describes at a high level steps to perform in a test. + + Attributes: + name: The string name of the sequence. + maximum_duration: A length of time in seconds to allow for the test before + declaring it to have failed. + invocation: An Invocation value describing how to invoke the operation + under test. + elements: A sequence of Element values describing at coarse granularity + actions to take during the operation under test. + outcome: An Outcome value describing the expected outcome of the test. + """ + +_EASY = Sequence( + 'Easy', + test_constants.TIME_ALLOWANCE, + Invocation(test_constants.LONG_TIMEOUT, True, True, True), + ( + Element( + Element.Kind.SERVICE_TRANSMISSION, Transmission(True, True, True)), + ), + Outcome(base.Outcome.COMPLETED, base.Outcome.COMPLETED)) + +_PEASY = Sequence( + 'Peasy', + test_constants.TIME_ALLOWANCE, + Invocation(test_constants.LONG_TIMEOUT, True, True, False), + ( + Element( + Element.Kind.SERVICE_TRANSMISSION, Transmission(True, True, False)), + Element( + Element.Kind.INVOCATION_TRANSMISSION, + Transmission(False, True, True)), + Element( + Element.Kind.SERVICE_TRANSMISSION, Transmission(False, True, True)), + ), + Outcome(base.Outcome.COMPLETED, base.Outcome.COMPLETED)) + + +# TODO(issue 2959): Finish this test suite. This tuple of sequences should +# contain at least the values in the Cartesian product of (half-duplex, +# full-duplex) * (zero payloads, one payload, test_constants.STREAM_LENGTH +# payloads) * (completion, cancellation, expiration, programming defect in +# servicer code). +SEQUENCES = ( + _EASY, + _PEASY, +) diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/base/_state.py b/src/python/grpcio_test/grpc_test/framework/interfaces/base/_state.py new file mode 100644 index 0000000000..21cf33aeb6 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/base/_state.py @@ -0,0 +1,55 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Part of the tests of the base interface of RPC Framework.""" + + +class OperationState(object): + + def __init__(self): + self.invocation_initial_metadata_in_flight = None + self.invocation_initial_metadata_received = False + self.invocation_payloads_in_flight = [] + self.invocation_payloads_received = 0 + self.invocation_completion_in_flight = None + self.invocation_completion_received = False + self.service_initial_metadata_in_flight = None + self.service_initial_metadata_received = False + self.service_payloads_in_flight = [] + self.service_payloads_received = 0 + self.service_completion_in_flight = None + self.service_completion_received = False + self.invocation_side_invocation_allowance = 1 + self.invocation_side_service_allowance = 1 + self.service_side_invocation_allowance = 1 + self.service_side_service_allowance = 1 + self.invocation_allowance_in_flight = 0 + self.service_allowance_in_flight = 0 + self.invocation_side_outcome = None + self.service_side_outcome = None diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/base/test_cases.py b/src/python/grpcio_test/grpc_test/framework/interfaces/base/test_cases.py new file mode 100644 index 0000000000..5c8b176da4 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/base/test_cases.py @@ -0,0 +1,262 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Tests of the base interface of RPC Framework.""" + +import logging +import random +import threading +import time +import unittest + +from grpc.framework.foundation import logging_pool +from grpc.framework.interfaces.base import base +from grpc.framework.interfaces.base import utilities +from grpc_test.framework.common import test_constants +from grpc_test.framework.interfaces.base import _control +from grpc_test.framework.interfaces.base import test_interfaces + +_SYNCHRONICITY_VARIATION = (('Sync', False), ('Async', True)) + +_EMPTY_OUTCOME_DICT = {outcome: 0 for outcome in base.Outcome} + + +class _Serialization(test_interfaces.Serialization): + + def serialize_request(self, request): + return request + request + + def deserialize_request(self, serialized_request): + return serialized_request[:len(serialized_request) / 2] + + def serialize_response(self, response): + return response * 3 + + def deserialize_response(self, serialized_response): + return serialized_response[2 * len(serialized_response) / 3:] + + +def _advance(quadruples, operator, controller): + try: + for quadruple in quadruples: + operator.advance( + initial_metadata=quadruple[0], payload=quadruple[1], + completion=quadruple[2], allowance=quadruple[3]) + except Exception as e: # pylint: disable=broad-except + controller.failed('Exception on advance: %e' % e) + + +class _Operator(base.Operator): + + def __init__(self, controller, on_advance, pool, operator_under_test): + self._condition = threading.Condition() + self._controller = controller + self._on_advance = on_advance + self._pool = pool + self._operator_under_test = operator_under_test + self._pending_advances = [] + + def set_operator_under_test(self, operator_under_test): + with self._condition: + self._operator_under_test = operator_under_test + pent_advances = self._pending_advances + self._pending_advances = [] + pool = self._pool + controller = self._controller + + if pool is None: + _advance(pent_advances, operator_under_test, controller) + else: + pool.submit(_advance, pent_advances, operator_under_test, controller) + + def advance( + self, initial_metadata=None, payload=None, completion=None, + allowance=None): + on_advance = self._on_advance( + initial_metadata, payload, completion, allowance) + if on_advance.kind is _control.OnAdvance.Kind.ADVANCE: + with self._condition: + pool = self._pool + operator_under_test = self._operator_under_test + controller = self._controller + + quadruple = ( + on_advance.initial_metadata, on_advance.payload, + on_advance.completion, on_advance.allowance) + if pool is None: + _advance((quadruple,), operator_under_test, controller) + else: + pool.submit(_advance, (quadruple,), operator_under_test, controller) + elif on_advance.kind is _control.OnAdvance.Kind.DEFECT: + raise ValueError( + 'Deliberately raised exception from Operator.advance (in a test)!') + + +class _Servicer(base.Servicer): + """An base.Servicer with instrumented for testing.""" + + def __init__(self, group, method, controllers, pool): + self._condition = threading.Condition() + self._group = group + self._method = method + self._pool = pool + self._controllers = list(controllers) + + def service(self, group, method, context, output_operator): + with self._condition: + controller = self._controllers.pop(0) + if group != self._group or method != self._method: + controller.fail( + '%s != %s or %s != %s' % (group, self._group, method, self._method)) + raise base.NoSuchMethodError() + else: + operator = _Operator( + controller, controller.on_service_advance, self._pool, + output_operator) + outcome = context.add_termination_callback( + controller.service_on_termination) + if outcome is not None: + controller.service_on_termination(outcome) + return utilities.full_subscription(operator) + + +class _OperationTest(unittest.TestCase): + + def setUp(self): + if self._synchronicity_variation: + self._pool = logging_pool.pool(test_constants.POOL_SIZE) + else: + self._pool = None + self._controller = self._controller_creator.controller( + self._implementation, self._randomness) + + def tearDown(self): + if self._synchronicity_variation: + self._pool.shutdown(wait=True) + else: + self._pool = None + + def test_operation(self): + invocation = self._controller.invocation() + if invocation.subscription_kind is base.Subscription.Kind.FULL: + test_operator = _Operator( + self._controller, self._controller.on_invocation_advance, + self._pool, None) + subscription = utilities.full_subscription(test_operator) + else: + # TODO(nathaniel): support and test other subscription kinds. + self.fail('Non-full subscriptions not yet supported!') + + servicer = _Servicer( + invocation.group, invocation.method, (self._controller,), self._pool) + + invocation_end, service_end, memo = self._implementation.instantiate( + {(invocation.group, invocation.method): _Serialization()}, servicer) + + try: + invocation_end.start() + service_end.start() + operation_context, operator_under_test = invocation_end.operate( + invocation.group, invocation.method, subscription, invocation.timeout, + initial_metadata=invocation.initial_metadata, payload=invocation.payload, + completion=invocation.completion) + test_operator.set_operator_under_test(operator_under_test) + outcome = operation_context.add_termination_callback( + self._controller.invocation_on_termination) + if outcome is not None: + self._controller.invocation_on_termination(outcome) + except Exception as e: # pylint: disable=broad-except + self._controller.failed('Exception on invocation: %s' % e) + self.fail(e) + + while True: + instruction = self._controller.poll() + if instruction.kind is _control.Instruction.Kind.ADVANCE: + try: + test_operator.advance( + *instruction.advance_args, **instruction.advance_kwargs) + except Exception as e: # pylint: disable=broad-except + self._controller.failed('Exception on instructed advance: %s' % e) + elif instruction.kind is _control.Instruction.Kind.CANCEL: + try: + operation_context.cancel() + except Exception as e: # pylint: disable=broad-except + self._controller.failed('Exception on cancel: %s' % e) + elif instruction.kind is _control.Instruction.Kind.CONCLUDE: + break + + invocation_stop_event = invocation_end.stop(0) + service_stop_event = service_end.stop(0) + invocation_stop_event.wait() + service_stop_event.wait() + invocation_stats = invocation_end.operation_stats() + service_stats = service_end.operation_stats() + + self._implementation.destantiate(memo) + + self.assertTrue( + instruction.conclude_success, msg=instruction.conclude_message) + + expected_invocation_stats = dict(_EMPTY_OUTCOME_DICT) + expected_invocation_stats[instruction.conclude_invocation_outcome] += 1 + self.assertDictEqual(expected_invocation_stats, invocation_stats) + expected_service_stats = dict(_EMPTY_OUTCOME_DICT) + expected_service_stats[instruction.conclude_service_outcome] += 1 + self.assertDictEqual(expected_service_stats, service_stats) + + +def test_cases(implementation): + """Creates unittest.TestCase classes for a given Base implementation. + + Args: + implementation: A test_interfaces.Implementation specifying creation and + destruction of the Base implementation under test. + + Returns: + A sequence of subclasses of unittest.TestCase defining tests of the + specified Base layer implementation. + """ + random_seed = hash(time.time()) + logging.warning('Random seed for this execution: %s', random_seed) + randomness = random.Random(x=random_seed) + + test_case_classes = [] + for synchronicity_variation in _SYNCHRONICITY_VARIATION: + for controller_creator in _control.CONTROLLER_CREATORS: + name = ''.join( + (synchronicity_variation[0], controller_creator.name(), 'Test',)) + test_case_classes.append( + type(name, (_OperationTest,), + {'_implementation': implementation, + '_randomness': randomness, + '_synchronicity_variation': synchronicity_variation[1], + '_controller_creator': controller_creator, + })) + + return test_case_classes diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/base/test_interfaces.py b/src/python/grpcio_test/grpc_test/framework/interfaces/base/test_interfaces.py new file mode 100644 index 0000000000..02426ab846 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/base/test_interfaces.py @@ -0,0 +1,186 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Interfaces used in tests of implementations of the Base layer.""" + +import abc + +from grpc.framework.interfaces.base import base # pylint: disable=unused-import + + +class Serialization(object): + """Specifies serialization and deserialization of test payloads.""" + __metaclass__ = abc.ABCMeta + + def serialize_request(self, request): + """Serializes a request value used in a test. + + Args: + request: A request value created by a test. + + Returns: + A bytestring that is the serialization of the given request. + """ + raise NotImplementedError() + + def deserialize_request(self, serialized_request): + """Deserializes a request value used in a test. + + Args: + serialized_request: A bytestring that is the serialization of some request + used in a test. + + Returns: + The request value encoded by the given bytestring. + """ + raise NotImplementedError() + + def serialize_response(self, response): + """Serializes a response value used in a test. + + Args: + response: A response value created by a test. + + Returns: + A bytestring that is the serialization of the given response. + """ + raise NotImplementedError() + + def deserialize_response(self, serialized_response): + """Deserializes a response value used in a test. + + Args: + serialized_response: A bytestring that is the serialization of some + response used in a test. + + Returns: + The response value encoded by the given bytestring. + """ + raise NotImplementedError() + + +class Implementation(object): + """Specifies an implementation of the Base layer.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def instantiate(self, serializations, servicer): + """Instantiates the Base layer implementation to be used in a test. + + Args: + serializations: A dict from group-method pair to Serialization object + specifying how to serialize and deserialize payload values used in the + test. + servicer: A base.Servicer object to be called to service RPCs made during + the test. + + Returns: + A sequence of length three the first element of which is a + base.End to be used to invoke RPCs, the second element of which is a + base.End to be used to service invoked RPCs, and the third element of + which is an arbitrary memo object to be kept and passed to destantiate + at the conclusion of the test. + """ + raise NotImplementedError() + + @abc.abstractmethod + def destantiate(self, memo): + """Destroys the Base layer implementation under test. + + Args: + memo: The object from the third position of the return value of a call to + instantiate. + """ + raise NotImplementedError() + + @abc.abstractmethod + def invocation_initial_metadata(self): + """Provides an operation's invocation-side initial metadata. + + Returns: + A value to use for an operation's invocation-side initial metadata, or + None. + """ + raise NotImplementedError() + + @abc.abstractmethod + def service_initial_metadata(self): + """Provices an operation's service-side initial metadata. + + Returns: + A value to use for an operation's service-side initial metadata, or + None. + """ + raise NotImplementedError() + + @abc.abstractmethod + def invocation_completion(self): + """Provides an operation's invocation-side completion. + + Returns: + A base.Completion to use for an operation's invocation-side completion. + """ + raise NotImplementedError() + + @abc.abstractmethod + def service_completion(self): + """Provides an operation's service-side completion. + + Returns: + A base.Completion to use for an operation's service-side completion. + """ + raise NotImplementedError() + + @abc.abstractmethod + def metadata_transmitted(self, original_metadata, transmitted_metadata): + """Identifies whether or not metadata was properly transmitted. + + Args: + original_metadata: A metadata value passed to the system under test. + transmitted_metadata: The same metadata value after having been + transmitted through the system under test. + + Returns: + Whether or not the metadata was properly transmitted. + """ + raise NotImplementedError() + + @abc.abstractmethod + def completion_transmitted(self, original_completion, transmitted_completion): + """Identifies whether or not a base.Completion was properly transmitted. + + Args: + original_completion: A base.Completion passed to the system under test. + transmitted_completion: The same completion value after having been + transmitted through the system under test. + + Returns: + Whether or not the completion was properly transmitted. + """ + raise NotImplementedError() diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/face/__init__.py b/src/python/grpcio_test/grpc_test/framework/interfaces/face/__init__.py new file mode 100644 index 0000000000..7086519106 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/face/__init__.py @@ -0,0 +1,30 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/face/_blocking_invocation_inline_service.py b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_blocking_invocation_inline_service.py new file mode 100644 index 0000000000..857ad5cf3e --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_blocking_invocation_inline_service.py @@ -0,0 +1,250 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Test code for the Face layer of RPC Framework.""" + +import abc +import unittest + +# test_interfaces is referenced from specification in this module. +from grpc.framework.interfaces.face import face +from grpc_test.framework.common import test_constants +from grpc_test.framework.common import test_control +from grpc_test.framework.common import test_coverage +from grpc_test.framework.interfaces.face import _digest +from grpc_test.framework.interfaces.face import _stock_service +from grpc_test.framework.interfaces.face import test_interfaces # pylint: disable=unused-import + + +class TestCase(test_coverage.Coverage, unittest.TestCase): + """A test of the Face layer of RPC Framework. + + Concrete subclasses must have an "implementation" attribute of type + test_interfaces.Implementation and an "invoker_constructor" attribute of type + _invocation.InvokerConstructor. + """ + __metaclass__ = abc.ABCMeta + + NAME = 'BlockingInvocationInlineServiceTest' + + def setUp(self): + """See unittest.TestCase.setUp for full specification. + + Overriding implementations must call this implementation. + """ + self._control = test_control.PauseFailControl() + self._digest = _digest.digest( + _stock_service.STOCK_TEST_SERVICE, self._control, None) + + generic_stub, dynamic_stubs, self._memo = self.implementation.instantiate( + self._digest.methods, self._digest.inline_method_implementations, None) + self._invoker = self.invoker_constructor.construct_invoker( + generic_stub, dynamic_stubs, self._digest.methods) + + def tearDown(self): + """See unittest.TestCase.tearDown for full specification. + + Overriding implementations must call this implementation. + """ + self.implementation.destantiate(self._memo) + + def testSuccessfulUnaryRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + response = self._invoker.blocking(group, method)( + request, test_constants.LONG_TIMEOUT) + + test_messages.verify(request, response, self) + + def testSuccessfulUnaryRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + response_iterator = self._invoker.blocking(group, method)( + request, test_constants.LONG_TIMEOUT) + responses = list(response_iterator) + + test_messages.verify(request, responses, self) + + def testSuccessfulStreamRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + + response = self._invoker.blocking(group, method)( + iter(requests), test_constants.LONG_TIMEOUT) + + test_messages.verify(requests, response, self) + + def testSuccessfulStreamRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + + response_iterator = self._invoker.blocking(group, method)( + iter(requests), test_constants.LONG_TIMEOUT) + responses = list(response_iterator) + + test_messages.verify(requests, responses, self) + + def testSequentialInvocations(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + first_request = test_messages.request() + second_request = test_messages.request() + + first_response = self._invoker.blocking(group, method)( + first_request, test_constants.LONG_TIMEOUT) + + test_messages.verify(first_request, first_response, self) + + second_response = self._invoker.blocking(group, method)( + second_request, test_constants.LONG_TIMEOUT) + + test_messages.verify(second_request, second_response, self) + + @unittest.skip('Parallel invocations impossible with blocking control flow!') + def testParallelInvocations(self): + raise NotImplementedError() + + @unittest.skip('Parallel invocations impossible with blocking control flow!') + def testWaitingForSomeButNotAllParallelInvocations(self): + raise NotImplementedError() + + @unittest.skip('Cancellation impossible with blocking control flow!') + def testCancelledUnaryRequestUnaryResponse(self): + raise NotImplementedError() + + @unittest.skip('Cancellation impossible with blocking control flow!') + def testCancelledUnaryRequestStreamResponse(self): + raise NotImplementedError() + + @unittest.skip('Cancellation impossible with blocking control flow!') + def testCancelledStreamRequestUnaryResponse(self): + raise NotImplementedError() + + @unittest.skip('Cancellation impossible with blocking control flow!') + def testCancelledStreamRequestStreamResponse(self): + raise NotImplementedError() + + def testExpiredUnaryRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + with self._control.pause(), self.assertRaises( + face.ExpirationError): + self._invoker.blocking(group, method)( + request, test_constants.SHORT_TIMEOUT) + + def testExpiredUnaryRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + with self._control.pause(), self.assertRaises( + face.ExpirationError): + response_iterator = self._invoker.blocking(group, method)( + request, test_constants.SHORT_TIMEOUT) + list(response_iterator) + + def testExpiredStreamRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + + with self._control.pause(), self.assertRaises( + face.ExpirationError): + self._invoker.blocking(group, method)( + iter(requests), test_constants.SHORT_TIMEOUT) + + def testExpiredStreamRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + + with self._control.pause(), self.assertRaises( + face.ExpirationError): + response_iterator = self._invoker.blocking(group, method)( + iter(requests), test_constants.SHORT_TIMEOUT) + list(response_iterator) + + def testFailedUnaryRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + with self._control.fail(), self.assertRaises(face.RemoteError): + self._invoker.blocking(group, method)( + request, test_constants.LONG_TIMEOUT) + + def testFailedUnaryRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + with self._control.fail(), self.assertRaises(face.RemoteError): + response_iterator = self._invoker.blocking(group, method)( + request, test_constants.LONG_TIMEOUT) + list(response_iterator) + + def testFailedStreamRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + + with self._control.fail(), self.assertRaises(face.RemoteError): + self._invoker.blocking(group, method)( + iter(requests), test_constants.LONG_TIMEOUT) + + def testFailedStreamRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + + with self._control.fail(), self.assertRaises(face.RemoteError): + response_iterator = self._invoker.blocking(group, method)( + iter(requests), test_constants.LONG_TIMEOUT) + list(response_iterator) diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/face/_digest.py b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_digest.py new file mode 100644 index 0000000000..da56ed7b27 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_digest.py @@ -0,0 +1,444 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Code for making a service.TestService more amenable to use in tests.""" + +import collections +import threading + +# test_control, _service, and test_interfaces are referenced from specification +# in this module. +from grpc.framework.common import cardinality +from grpc.framework.common import style +from grpc.framework.foundation import stream +from grpc.framework.foundation import stream_util +from grpc.framework.interfaces.face import face +from grpc_test.framework.common import test_control # pylint: disable=unused-import +from grpc_test.framework.interfaces.face import _service # pylint: disable=unused-import +from grpc_test.framework.interfaces.face import test_interfaces # pylint: disable=unused-import + +_IDENTITY = lambda x: x + + +class TestServiceDigest( + collections.namedtuple( + 'TestServiceDigest', + ('methods', + 'inline_method_implementations', + 'event_method_implementations', + 'multi_method_implementation', + 'unary_unary_messages_sequences', + 'unary_stream_messages_sequences', + 'stream_unary_messages_sequences', + 'stream_stream_messages_sequences',))): + """A transformation of a service.TestService. + + Attributes: + methods: A dict from method group-name pair to test_interfaces.Method object + describing the RPC methods that may be called during the test. + inline_method_implementations: A dict from method group-name pair to + face.MethodImplementation object to be used in tests of in-line calls to + behaviors under test. + event_method_implementations: A dict from method group-name pair to + face.MethodImplementation object to be used in tests of event-driven calls + to behaviors under test. + multi_method_implementation: A face.MultiMethodImplementation to be used in + tests of generic calls to behaviors under test. + unary_unary_messages_sequences: A dict from method group-name pair to + sequence of service.UnaryUnaryTestMessages objects to be used to test the + identified method. + unary_stream_messages_sequences: A dict from method group-name pair to + sequence of service.UnaryStreamTestMessages objects to be used to test the + identified method. + stream_unary_messages_sequences: A dict from method group-name pair to + sequence of service.StreamUnaryTestMessages objects to be used to test the + identified method. + stream_stream_messages_sequences: A dict from method group-name pair to + sequence of service.StreamStreamTestMessages objects to be used to test + the identified method. + """ + + +class _BufferingConsumer(stream.Consumer): + """A trivial Consumer that dumps what it consumes in a user-mutable buffer.""" + + def __init__(self): + self.consumed = [] + self.terminated = False + + def consume(self, value): + self.consumed.append(value) + + def terminate(self): + self.terminated = True + + def consume_and_terminate(self, value): + self.consumed.append(value) + self.terminated = True + + +class _InlineUnaryUnaryMethod(face.MethodImplementation): + + def __init__(self, unary_unary_test_method, control): + self._test_method = unary_unary_test_method + self._control = control + + self.cardinality = cardinality.Cardinality.UNARY_UNARY + self.style = style.Service.INLINE + + def unary_unary_inline(self, request, context): + response_list = [] + self._test_method.service( + request, response_list.append, context, self._control) + return response_list.pop(0) + + +class _EventUnaryUnaryMethod(face.MethodImplementation): + + def __init__(self, unary_unary_test_method, control, pool): + self._test_method = unary_unary_test_method + self._control = control + self._pool = pool + + self.cardinality = cardinality.Cardinality.UNARY_UNARY + self.style = style.Service.EVENT + + def unary_unary_event(self, request, response_callback, context): + if self._pool is None: + self._test_method.service( + request, response_callback, context, self._control) + else: + self._pool.submit( + self._test_method.service, request, response_callback, context, + self._control) + + +class _InlineUnaryStreamMethod(face.MethodImplementation): + + def __init__(self, unary_stream_test_method, control): + self._test_method = unary_stream_test_method + self._control = control + + self.cardinality = cardinality.Cardinality.UNARY_STREAM + self.style = style.Service.INLINE + + def unary_stream_inline(self, request, context): + response_consumer = _BufferingConsumer() + self._test_method.service( + request, response_consumer, context, self._control) + for response in response_consumer.consumed: + yield response + + +class _EventUnaryStreamMethod(face.MethodImplementation): + + def __init__(self, unary_stream_test_method, control, pool): + self._test_method = unary_stream_test_method + self._control = control + self._pool = pool + + self.cardinality = cardinality.Cardinality.UNARY_STREAM + self.style = style.Service.EVENT + + def unary_stream_event(self, request, response_consumer, context): + if self._pool is None: + self._test_method.service( + request, response_consumer, context, self._control) + else: + self._pool.submit( + self._test_method.service, request, response_consumer, context, + self._control) + + +class _InlineStreamUnaryMethod(face.MethodImplementation): + + def __init__(self, stream_unary_test_method, control): + self._test_method = stream_unary_test_method + self._control = control + + self.cardinality = cardinality.Cardinality.STREAM_UNARY + self.style = style.Service.INLINE + + def stream_unary_inline(self, request_iterator, context): + response_list = [] + request_consumer = self._test_method.service( + response_list.append, context, self._control) + for request in request_iterator: + request_consumer.consume(request) + request_consumer.terminate() + return response_list.pop(0) + + +class _EventStreamUnaryMethod(face.MethodImplementation): + + def __init__(self, stream_unary_test_method, control, pool): + self._test_method = stream_unary_test_method + self._control = control + self._pool = pool + + self.cardinality = cardinality.Cardinality.STREAM_UNARY + self.style = style.Service.EVENT + + def stream_unary_event(self, response_callback, context): + request_consumer = self._test_method.service( + response_callback, context, self._control) + if self._pool is None: + return request_consumer + else: + return stream_util.ThreadSwitchingConsumer(request_consumer, self._pool) + + +class _InlineStreamStreamMethod(face.MethodImplementation): + + def __init__(self, stream_stream_test_method, control): + self._test_method = stream_stream_test_method + self._control = control + + self.cardinality = cardinality.Cardinality.STREAM_STREAM + self.style = style.Service.INLINE + + def stream_stream_inline(self, request_iterator, context): + response_consumer = _BufferingConsumer() + request_consumer = self._test_method.service( + response_consumer, context, self._control) + + for request in request_iterator: + request_consumer.consume(request) + while response_consumer.consumed: + yield response_consumer.consumed.pop(0) + response_consumer.terminate() + + +class _EventStreamStreamMethod(face.MethodImplementation): + + def __init__(self, stream_stream_test_method, control, pool): + self._test_method = stream_stream_test_method + self._control = control + self._pool = pool + + self.cardinality = cardinality.Cardinality.STREAM_STREAM + self.style = style.Service.EVENT + + def stream_stream_event(self, response_consumer, context): + request_consumer = self._test_method.service( + response_consumer, context, self._control) + if self._pool is None: + return request_consumer + else: + return stream_util.ThreadSwitchingConsumer(request_consumer, self._pool) + + +class _UnaryConsumer(stream.Consumer): + """A Consumer that only allows consumption of exactly one value.""" + + def __init__(self, action): + self._lock = threading.Lock() + self._action = action + self._consumed = False + self._terminated = False + + def consume(self, value): + with self._lock: + if self._consumed: + raise ValueError('Unary consumer already consumed!') + elif self._terminated: + raise ValueError('Unary consumer already terminated!') + else: + self._consumed = True + + self._action(value) + + def terminate(self): + with self._lock: + if not self._consumed: + raise ValueError('Unary consumer hasn\'t yet consumed!') + elif self._terminated: + raise ValueError('Unary consumer already terminated!') + else: + self._terminated = True + + def consume_and_terminate(self, value): + with self._lock: + if self._consumed: + raise ValueError('Unary consumer already consumed!') + elif self._terminated: + raise ValueError('Unary consumer already terminated!') + else: + self._consumed = True + self._terminated = True + + self._action(value) + + +class _UnaryUnaryAdaptation(object): + + def __init__(self, unary_unary_test_method): + self._method = unary_unary_test_method + + def service(self, response_consumer, context, control): + def action(request): + self._method.service( + request, response_consumer.consume_and_terminate, context, control) + return _UnaryConsumer(action) + + +class _UnaryStreamAdaptation(object): + + def __init__(self, unary_stream_test_method): + self._method = unary_stream_test_method + + def service(self, response_consumer, context, control): + def action(request): + self._method.service(request, response_consumer, context, control) + return _UnaryConsumer(action) + + +class _StreamUnaryAdaptation(object): + + def __init__(self, stream_unary_test_method): + self._method = stream_unary_test_method + + def service(self, response_consumer, context, control): + return self._method.service( + response_consumer.consume_and_terminate, context, control) + + +class _MultiMethodImplementation(face.MultiMethodImplementation): + + def __init__(self, methods, control, pool): + self._methods = methods + self._control = control + self._pool = pool + + def service(self, group, name, response_consumer, context): + method = self._methods.get(group, name, None) + if method is None: + raise face.NoSuchMethodError(group, name) + elif self._pool is None: + return method(response_consumer, context, self._control) + else: + request_consumer = method(response_consumer, context, self._control) + return stream_util.ThreadSwitchingConsumer(request_consumer, self._pool) + + +class _Assembly( + collections.namedtuple( + '_Assembly', + ['methods', 'inlines', 'events', 'adaptations', 'messages'])): + """An intermediate structure created when creating a TestServiceDigest.""" + + +def _assemble( + scenarios, identifiers, inline_method_constructor, event_method_constructor, + adapter, control, pool): + """Creates an _Assembly from the given scenarios.""" + methods = {} + inlines = {} + events = {} + adaptations = {} + messages = {} + for identifier, scenario in scenarios.iteritems(): + if identifier in identifiers: + raise ValueError('Repeated identifier "(%s, %s)"!' % identifier) + + test_method = scenario[0] + inline_method = inline_method_constructor(test_method, control) + event_method = event_method_constructor(test_method, control, pool) + adaptation = adapter(test_method) + + methods[identifier] = test_method + inlines[identifier] = inline_method + events[identifier] = event_method + adaptations[identifier] = adaptation + messages[identifier] = scenario[1] + + return _Assembly(methods, inlines, events, adaptations, messages) + + +def digest(service, control, pool): + """Creates a TestServiceDigest from a TestService. + + Args: + service: A _service.TestService. + control: A test_control.Control. + pool: If RPC methods should be serviced in a separate thread, a thread pool. + None if RPC methods should be serviced in the thread belonging to the + run-time that calls for their service. + + Returns: + A TestServiceDigest synthesized from the given service.TestService. + """ + identifiers = set() + + unary_unary = _assemble( + service.unary_unary_scenarios(), identifiers, _InlineUnaryUnaryMethod, + _EventUnaryUnaryMethod, _UnaryUnaryAdaptation, control, pool) + identifiers.update(unary_unary.inlines) + + unary_stream = _assemble( + service.unary_stream_scenarios(), identifiers, _InlineUnaryStreamMethod, + _EventUnaryStreamMethod, _UnaryStreamAdaptation, control, pool) + identifiers.update(unary_stream.inlines) + + stream_unary = _assemble( + service.stream_unary_scenarios(), identifiers, _InlineStreamUnaryMethod, + _EventStreamUnaryMethod, _StreamUnaryAdaptation, control, pool) + identifiers.update(stream_unary.inlines) + + stream_stream = _assemble( + service.stream_stream_scenarios(), identifiers, _InlineStreamStreamMethod, + _EventStreamStreamMethod, _IDENTITY, control, pool) + identifiers.update(stream_stream.inlines) + + methods = dict(unary_unary.methods) + methods.update(unary_stream.methods) + methods.update(stream_unary.methods) + methods.update(stream_stream.methods) + adaptations = dict(unary_unary.adaptations) + adaptations.update(unary_stream.adaptations) + adaptations.update(stream_unary.adaptations) + adaptations.update(stream_stream.adaptations) + inlines = dict(unary_unary.inlines) + inlines.update(unary_stream.inlines) + inlines.update(stream_unary.inlines) + inlines.update(stream_stream.inlines) + events = dict(unary_unary.events) + events.update(unary_stream.events) + events.update(stream_unary.events) + events.update(stream_stream.events) + + return TestServiceDigest( + methods, + inlines, + events, + _MultiMethodImplementation(adaptations, control, pool), + unary_unary.messages, + unary_stream.messages, + stream_unary.messages, + stream_stream.messages) diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/face/_event_invocation_synchronous_event_service.py b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_event_invocation_synchronous_event_service.py new file mode 100644 index 0000000000..ea5cdeaea3 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_event_invocation_synchronous_event_service.py @@ -0,0 +1,377 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Test code for the Face layer of RPC Framework.""" + +import abc +import unittest + +# test_interfaces is referenced from specification in this module. +from grpc.framework.interfaces.face import face +from grpc_test.framework.common import test_constants +from grpc_test.framework.common import test_control +from grpc_test.framework.common import test_coverage +from grpc_test.framework.interfaces.face import _digest +from grpc_test.framework.interfaces.face import _receiver +from grpc_test.framework.interfaces.face import _stock_service +from grpc_test.framework.interfaces.face import test_interfaces # pylint: disable=unused-import + + +class TestCase(test_coverage.Coverage, unittest.TestCase): + """A test of the Face layer of RPC Framework. + + Concrete subclasses must have an "implementation" attribute of type + test_interfaces.Implementation and an "invoker_constructor" attribute of type + _invocation.InvokerConstructor. + """ + __metaclass__ = abc.ABCMeta + + NAME = 'EventInvocationSynchronousEventServiceTest' + + def setUp(self): + """See unittest.TestCase.setUp for full specification. + + Overriding implementations must call this implementation. + """ + self._control = test_control.PauseFailControl() + self._digest = _digest.digest( + _stock_service.STOCK_TEST_SERVICE, self._control, None) + + generic_stub, dynamic_stubs, self._memo = self.implementation.instantiate( + self._digest.methods, self._digest.event_method_implementations, None) + self._invoker = self.invoker_constructor.construct_invoker( + generic_stub, dynamic_stubs, self._digest.methods) + + def tearDown(self): + """See unittest.TestCase.tearDown for full specification. + + Overriding implementations must call this implementation. + """ + self.implementation.destantiate(self._memo) + + def testSuccessfulUnaryRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + receiver = _receiver.Receiver() + + self._invoker.event(group, method)( + request, receiver, receiver.abort, test_constants.LONG_TIMEOUT) + receiver.block_until_terminated() + response = receiver.unary_response() + + test_messages.verify(request, response, self) + + def testSuccessfulUnaryRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + receiver = _receiver.Receiver() + + self._invoker.event(group, method)( + request, receiver, receiver.abort, test_constants.LONG_TIMEOUT) + receiver.block_until_terminated() + responses = receiver.stream_responses() + + test_messages.verify(request, responses, self) + + def testSuccessfulStreamRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + receiver = _receiver.Receiver() + + call_consumer = self._invoker.event(group, method)( + receiver, receiver.abort, test_constants.LONG_TIMEOUT) + for request in requests: + call_consumer.consume(request) + call_consumer.terminate() + receiver.block_until_terminated() + response = receiver.unary_response() + + test_messages.verify(requests, response, self) + + def testSuccessfulStreamRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + receiver = _receiver.Receiver() + + call_consumer = self._invoker.event(group, method)( + receiver, receiver.abort, test_constants.LONG_TIMEOUT) + for request in requests: + call_consumer.consume(request) + call_consumer.terminate() + receiver.block_until_terminated() + responses = receiver.stream_responses() + + test_messages.verify(requests, responses, self) + + def testSequentialInvocations(self): + # pylint: disable=cell-var-from-loop + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + first_request = test_messages.request() + second_request = test_messages.request() + second_receiver = _receiver.Receiver() + + def make_second_invocation(): + self._invoker.event(group, method)( + second_request, second_receiver, second_receiver.abort, + test_constants.LONG_TIMEOUT) + + class FirstReceiver(_receiver.Receiver): + + def complete(self, terminal_metadata, code, details): + super(FirstReceiver, self).complete( + terminal_metadata, code, details) + make_second_invocation() + + first_receiver = FirstReceiver() + + self._invoker.event(group, method)( + first_request, first_receiver, first_receiver.abort, + test_constants.LONG_TIMEOUT) + second_receiver.block_until_terminated() + + first_response = first_receiver.unary_response() + second_response = second_receiver.unary_response() + test_messages.verify(first_request, first_response, self) + test_messages.verify(second_request, second_response, self) + + def testParallelInvocations(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + first_request = test_messages.request() + first_receiver = _receiver.Receiver() + second_request = test_messages.request() + second_receiver = _receiver.Receiver() + + self._invoker.event(group, method)( + first_request, first_receiver, first_receiver.abort, + test_constants.LONG_TIMEOUT) + self._invoker.event(group, method)( + second_request, second_receiver, second_receiver.abort, + test_constants.LONG_TIMEOUT) + first_receiver.block_until_terminated() + second_receiver.block_until_terminated() + + first_response = first_receiver.unary_response() + second_response = second_receiver.unary_response() + test_messages.verify(first_request, first_response, self) + test_messages.verify(second_request, second_response, self) + + @unittest.skip('TODO(nathaniel): implement.') + def testWaitingForSomeButNotAllParallelInvocations(self): + raise NotImplementedError() + + def testCancelledUnaryRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + receiver = _receiver.Receiver() + + with self._control.pause(): + call = self._invoker.event(group, method)( + request, receiver, receiver.abort, test_constants.LONG_TIMEOUT) + call.cancel() + receiver.block_until_terminated() + + self.assertIs(face.Abortion.Kind.CANCELLED, receiver.abortion().kind) + + def testCancelledUnaryRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + receiver = _receiver.Receiver() + + call = self._invoker.event(group, method)( + request, receiver, receiver.abort, test_constants.LONG_TIMEOUT) + call.cancel() + receiver.block_until_terminated() + + self.assertIs(face.Abortion.Kind.CANCELLED, receiver.abortion().kind) + + def testCancelledStreamRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + receiver = _receiver.Receiver() + + call_consumer = self._invoker.event(group, method)( + receiver, receiver.abort, test_constants.LONG_TIMEOUT) + for request in requests: + call_consumer.consume(request) + call_consumer.cancel() + receiver.block_until_terminated() + + self.assertIs(face.Abortion.Kind.CANCELLED, receiver.abortion().kind) + + def testCancelledStreamRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_stream_messages_sequences.iteritems()): + for unused_test_messages in test_messages_sequence: + receiver = _receiver.Receiver() + + call_consumer = self._invoker.event(group, method)( + receiver, receiver.abort, test_constants.LONG_TIMEOUT) + call_consumer.cancel() + receiver.block_until_terminated() + + self.assertIs(face.Abortion.Kind.CANCELLED, receiver.abortion().kind) + + def testExpiredUnaryRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + receiver = _receiver.Receiver() + + with self._control.pause(): + self._invoker.event(group, method)( + request, receiver, receiver.abort, test_constants.SHORT_TIMEOUT) + receiver.block_until_terminated() + + self.assertIs(face.Abortion.Kind.EXPIRED, receiver.abortion().kind) + + def testExpiredUnaryRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + receiver = _receiver.Receiver() + + with self._control.pause(): + self._invoker.event(group, method)( + request, receiver, receiver.abort, test_constants.SHORT_TIMEOUT) + receiver.block_until_terminated() + + self.assertIs(face.Abortion.Kind.EXPIRED, receiver.abortion().kind) + + def testExpiredStreamRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_unary_messages_sequences.iteritems()): + for unused_test_messages in test_messages_sequence: + receiver = _receiver.Receiver() + + self._invoker.event(group, method)( + receiver, receiver.abort, test_constants.SHORT_TIMEOUT) + receiver.block_until_terminated() + + self.assertIs(face.Abortion.Kind.EXPIRED, receiver.abortion().kind) + + def testExpiredStreamRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + receiver = _receiver.Receiver() + + call_consumer = self._invoker.event(group, method)( + receiver, receiver.abort, test_constants.SHORT_TIMEOUT) + for request in requests: + call_consumer.consume(request) + receiver.block_until_terminated() + + self.assertIs(face.Abortion.Kind.EXPIRED, receiver.abortion().kind) + + def testFailedUnaryRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + receiver = _receiver.Receiver() + + with self._control.fail(): + self._invoker.event(group, method)( + request, receiver, receiver.abort, test_constants.LONG_TIMEOUT) + receiver.block_until_terminated() + + self.assertIs( + face.Abortion.Kind.REMOTE_FAILURE, receiver.abortion().kind) + + def testFailedUnaryRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + receiver = _receiver.Receiver() + + with self._control.fail(): + self._invoker.event(group, method)( + request, receiver, receiver.abort, test_constants.LONG_TIMEOUT) + receiver.block_until_terminated() + + self.assertIs( + face.Abortion.Kind.REMOTE_FAILURE, receiver.abortion().kind) + + def testFailedStreamRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + receiver = _receiver.Receiver() + + with self._control.fail(): + call_consumer = self._invoker.event(group, method)( + receiver, receiver.abort, test_constants.LONG_TIMEOUT) + for request in requests: + call_consumer.consume(request) + call_consumer.terminate() + receiver.block_until_terminated() + + self.assertIs( + face.Abortion.Kind.REMOTE_FAILURE, receiver.abortion().kind) + + def testFailedStreamRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + receiver = _receiver.Receiver() + + with self._control.fail(): + call_consumer = self._invoker.event(group, method)( + receiver, receiver.abort, test_constants.LONG_TIMEOUT) + for request in requests: + call_consumer.consume(request) + call_consumer.terminate() + receiver.block_until_terminated() + + self.assertIs( + face.Abortion.Kind.REMOTE_FAILURE, receiver.abortion().kind) diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/face/_future_invocation_asynchronous_event_service.py b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_future_invocation_asynchronous_event_service.py new file mode 100644 index 0000000000..a649362cef --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_future_invocation_asynchronous_event_service.py @@ -0,0 +1,378 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Test code for the Face layer of RPC Framework.""" + +import abc +import contextlib +import threading +import unittest + +# test_interfaces is referenced from specification in this module. +from grpc.framework.foundation import logging_pool +from grpc.framework.interfaces.face import face +from grpc_test.framework.common import test_constants +from grpc_test.framework.common import test_control +from grpc_test.framework.common import test_coverage +from grpc_test.framework.interfaces.face import _digest +from grpc_test.framework.interfaces.face import _stock_service +from grpc_test.framework.interfaces.face import test_interfaces # pylint: disable=unused-import + + +class _PauseableIterator(object): + + def __init__(self, upstream): + self._upstream = upstream + self._condition = threading.Condition() + self._paused = False + + @contextlib.contextmanager + def pause(self): + with self._condition: + self._paused = True + yield + with self._condition: + self._paused = False + self._condition.notify_all() + + def __iter__(self): + return self + + def next(self): + with self._condition: + while self._paused: + self._condition.wait() + return next(self._upstream) + + +class TestCase(test_coverage.Coverage, unittest.TestCase): + """A test of the Face layer of RPC Framework. + + Concrete subclasses must have an "implementation" attribute of type + test_interfaces.Implementation and an "invoker_constructor" attribute of type + _invocation.InvokerConstructor. + """ + __metaclass__ = abc.ABCMeta + + NAME = 'FutureInvocationAsynchronousEventServiceTest' + + def setUp(self): + """See unittest.TestCase.setUp for full specification. + + Overriding implementations must call this implementation. + """ + self._control = test_control.PauseFailControl() + self._digest_pool = logging_pool.pool(test_constants.POOL_SIZE) + self._digest = _digest.digest( + _stock_service.STOCK_TEST_SERVICE, self._control, self._digest_pool) + + generic_stub, dynamic_stubs, self._memo = self.implementation.instantiate( + self._digest.methods, self._digest.event_method_implementations, None) + self._invoker = self.invoker_constructor.construct_invoker( + generic_stub, dynamic_stubs, self._digest.methods) + + def tearDown(self): + """See unittest.TestCase.tearDown for full specification. + + Overriding implementations must call this implementation. + """ + self.implementation.destantiate(self._memo) + self._digest_pool.shutdown(wait=True) + + def testSuccessfulUnaryRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + response_future = self._invoker.future(group, method)( + request, test_constants.LONG_TIMEOUT) + response = response_future.result() + + test_messages.verify(request, response, self) + + def testSuccessfulUnaryRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + response_iterator = self._invoker.future(group, method)( + request, test_constants.LONG_TIMEOUT) + responses = list(response_iterator) + + test_messages.verify(request, responses, self) + + def testSuccessfulStreamRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + request_iterator = _PauseableIterator(iter(requests)) + + # Use of a paused iterator of requests allows us to test that control is + # returned to calling code before the iterator yields any requests. + with request_iterator.pause(): + response_future = self._invoker.future(group, method)( + request_iterator, test_constants.LONG_TIMEOUT) + response = response_future.result() + + test_messages.verify(requests, response, self) + + def testSuccessfulStreamRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + request_iterator = _PauseableIterator(iter(requests)) + + # Use of a paused iterator of requests allows us to test that control is + # returned to calling code before the iterator yields any requests. + with request_iterator.pause(): + response_iterator = self._invoker.future(group, method)( + request_iterator, test_constants.LONG_TIMEOUT) + responses = list(response_iterator) + + test_messages.verify(requests, responses, self) + + def testSequentialInvocations(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + first_request = test_messages.request() + second_request = test_messages.request() + + first_response_future = self._invoker.future(group, method)( + first_request, test_constants.LONG_TIMEOUT) + first_response = first_response_future.result() + + test_messages.verify(first_request, first_response, self) + + second_response_future = self._invoker.future(group, method)( + second_request, test_constants.LONG_TIMEOUT) + second_response = second_response_future.result() + + test_messages.verify(second_request, second_response, self) + + def testParallelInvocations(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + first_request = test_messages.request() + second_request = test_messages.request() + + first_response_future = self._invoker.future(group, method)( + first_request, test_constants.LONG_TIMEOUT) + second_response_future = self._invoker.future(group, method)( + second_request, test_constants.LONG_TIMEOUT) + first_response = first_response_future.result() + second_response = second_response_future.result() + + test_messages.verify(first_request, first_response, self) + test_messages.verify(second_request, second_response, self) + + @unittest.skip('TODO(nathaniel): implement.') + def testWaitingForSomeButNotAllParallelInvocations(self): + raise NotImplementedError() + + def testCancelledUnaryRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + with self._control.pause(): + response_future = self._invoker.future(group, method)( + request, test_constants.LONG_TIMEOUT) + cancel_method_return_value = response_future.cancel() + + self.assertFalse(cancel_method_return_value) + self.assertTrue(response_future.cancelled()) + + def testCancelledUnaryRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + with self._control.pause(): + response_iterator = self._invoker.future(group, method)( + request, test_constants.LONG_TIMEOUT) + response_iterator.cancel() + + with self.assertRaises(face.CancellationError): + next(response_iterator) + + def testCancelledStreamRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + + with self._control.pause(): + response_future = self._invoker.future(group, method)( + iter(requests), test_constants.LONG_TIMEOUT) + cancel_method_return_value = response_future.cancel() + + self.assertFalse(cancel_method_return_value) + self.assertTrue(response_future.cancelled()) + + def testCancelledStreamRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + + with self._control.pause(): + response_iterator = self._invoker.future(group, method)( + iter(requests), test_constants.LONG_TIMEOUT) + response_iterator.cancel() + + with self.assertRaises(face.CancellationError): + next(response_iterator) + + def testExpiredUnaryRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + with self._control.pause(): + response_future = self._invoker.future( + group, method)(request, test_constants.SHORT_TIMEOUT) + self.assertIsInstance( + response_future.exception(), face.ExpirationError) + with self.assertRaises(face.ExpirationError): + response_future.result() + + def testExpiredUnaryRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + with self._control.pause(): + response_iterator = self._invoker.future(group, method)( + request, test_constants.SHORT_TIMEOUT) + with self.assertRaises(face.ExpirationError): + list(response_iterator) + + def testExpiredStreamRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + + with self._control.pause(): + response_future = self._invoker.future(group, method)( + iter(requests), test_constants.SHORT_TIMEOUT) + self.assertIsInstance( + response_future.exception(), face.ExpirationError) + with self.assertRaises(face.ExpirationError): + response_future.result() + + def testExpiredStreamRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + + with self._control.pause(): + response_iterator = self._invoker.future(group, method)( + iter(requests), test_constants.SHORT_TIMEOUT) + with self.assertRaises(face.ExpirationError): + list(response_iterator) + + def testFailedUnaryRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + with self._control.fail(): + response_future = self._invoker.future(group, method)( + request, test_constants.SHORT_TIMEOUT) + + # Because the servicer fails outside of the thread from which the + # servicer-side runtime called into it its failure is + # indistinguishable from simply not having called its + # response_callback before the expiration of the RPC. + self.assertIsInstance( + response_future.exception(), face.ExpirationError) + with self.assertRaises(face.ExpirationError): + response_future.result() + + def testFailedUnaryRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.unary_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + request = test_messages.request() + + # Because the servicer fails outside of the thread from which the + # servicer-side runtime called into it its failure is indistinguishable + # from simply not having called its response_consumer before the + # expiration of the RPC. + with self._control.fail(), self.assertRaises(face.ExpirationError): + response_iterator = self._invoker.future(group, method)( + request, test_constants.SHORT_TIMEOUT) + list(response_iterator) + + def testFailedStreamRequestUnaryResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_unary_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + + with self._control.fail(): + response_future = self._invoker.future(group, method)( + iter(requests), test_constants.SHORT_TIMEOUT) + + # Because the servicer fails outside of the thread from which the + # servicer-side runtime called into it its failure is + # indistinguishable from simply not having called its + # response_callback before the expiration of the RPC. + self.assertIsInstance( + response_future.exception(), face.ExpirationError) + with self.assertRaises(face.ExpirationError): + response_future.result() + + def testFailedStreamRequestStreamResponse(self): + for (group, method), test_messages_sequence in ( + self._digest.stream_stream_messages_sequences.iteritems()): + for test_messages in test_messages_sequence: + requests = test_messages.requests() + + # Because the servicer fails outside of the thread from which the + # servicer-side runtime called into it its failure is indistinguishable + # from simply not having called its response_consumer before the + # expiration of the RPC. + with self._control.fail(), self.assertRaises(face.ExpirationError): + response_iterator = self._invoker.future(group, method)( + iter(requests), test_constants.SHORT_TIMEOUT) + list(response_iterator) diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/face/_invocation.py b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_invocation.py new file mode 100644 index 0000000000..448e845a08 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_invocation.py @@ -0,0 +1,213 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Coverage across the Face layer's generic-to-dynamic range for invocation.""" + +import abc + +from grpc.framework.common import cardinality + +_CARDINALITY_TO_GENERIC_BLOCKING_BEHAVIOR = { + cardinality.Cardinality.UNARY_UNARY: 'blocking_unary_unary', + cardinality.Cardinality.UNARY_STREAM: 'inline_unary_stream', + cardinality.Cardinality.STREAM_UNARY: 'blocking_stream_unary', + cardinality.Cardinality.STREAM_STREAM: 'inline_stream_stream', +} + +_CARDINALITY_TO_GENERIC_FUTURE_BEHAVIOR = { + cardinality.Cardinality.UNARY_UNARY: 'future_unary_unary', + cardinality.Cardinality.UNARY_STREAM: 'inline_unary_stream', + cardinality.Cardinality.STREAM_UNARY: 'future_stream_unary', + cardinality.Cardinality.STREAM_STREAM: 'inline_stream_stream', +} + +_CARDINALITY_TO_GENERIC_EVENT_BEHAVIOR = { + cardinality.Cardinality.UNARY_UNARY: 'event_unary_unary', + cardinality.Cardinality.UNARY_STREAM: 'event_unary_stream', + cardinality.Cardinality.STREAM_UNARY: 'event_stream_unary', + cardinality.Cardinality.STREAM_STREAM: 'event_stream_stream', +} + +_CARDINALITY_TO_MULTI_CALLABLE_ATTRIBUTE = { + cardinality.Cardinality.UNARY_UNARY: 'unary_unary', + cardinality.Cardinality.UNARY_STREAM: 'unary_stream', + cardinality.Cardinality.STREAM_UNARY: 'stream_unary', + cardinality.Cardinality.STREAM_STREAM: 'stream_stream', +} + + +class Invoker(object): + """A type used to invoke test RPCs.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def blocking(self, group, name): + """Invokes an RPC with blocking control flow.""" + raise NotImplementedError() + + @abc.abstractmethod + def future(self, group, name): + """Invokes an RPC with future control flow.""" + raise NotImplementedError() + + @abc.abstractmethod + def event(self, group, name): + """Invokes an RPC with event control flow.""" + raise NotImplementedError() + + +class InvokerConstructor(object): + """A type used to create Invokers.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def name(self): + """Specifies the name of the Invoker constructed by this object.""" + raise NotImplementedError() + + @abc.abstractmethod + def construct_invoker(self, generic_stub, dynamic_stubs, methods): + """Constructs an Invoker for the given stubs and methods.""" + raise NotImplementedError() + + +class _GenericInvoker(Invoker): + + def __init__(self, generic_stub, methods): + self._stub = generic_stub + self._methods = methods + + def _behavior(self, group, name, cardinality_to_generic_method): + method_cardinality = self._methods[group, name].cardinality() + behavior = getattr( + self._stub, cardinality_to_generic_method[method_cardinality]) + return lambda *args, **kwargs: behavior(group, name, *args, **kwargs) + + def blocking(self, group, name): + return self._behavior( + group, name, _CARDINALITY_TO_GENERIC_BLOCKING_BEHAVIOR) + + def future(self, group, name): + return self._behavior(group, name, _CARDINALITY_TO_GENERIC_FUTURE_BEHAVIOR) + + def event(self, group, name): + return self._behavior(group, name, _CARDINALITY_TO_GENERIC_EVENT_BEHAVIOR) + + +class _GenericInvokerConstructor(InvokerConstructor): + + def name(self): + return 'GenericInvoker' + + def construct_invoker(self, generic_stub, dynamic_stub, methods): + return _GenericInvoker(generic_stub, methods) + + +class _MultiCallableInvoker(Invoker): + + def __init__(self, generic_stub, methods): + self._stub = generic_stub + self._methods = methods + + def _multi_callable(self, group, name): + method_cardinality = self._methods[group, name].cardinality() + behavior = getattr( + self._stub, + _CARDINALITY_TO_MULTI_CALLABLE_ATTRIBUTE[method_cardinality]) + return behavior(group, name) + + def blocking(self, group, name): + return self._multi_callable(group, name) + + def future(self, group, name): + method_cardinality = self._methods[group, name].cardinality() + behavior = getattr( + self._stub, + _CARDINALITY_TO_MULTI_CALLABLE_ATTRIBUTE[method_cardinality]) + if method_cardinality in ( + cardinality.Cardinality.UNARY_UNARY, + cardinality.Cardinality.STREAM_UNARY): + return behavior(group, name).future + else: + return behavior(group, name) + + def event(self, group, name): + return self._multi_callable(group, name).event + + +class _MultiCallableInvokerConstructor(InvokerConstructor): + + def name(self): + return 'MultiCallableInvoker' + + def construct_invoker(self, generic_stub, dynamic_stub, methods): + return _MultiCallableInvoker(generic_stub, methods) + + +class _DynamicInvoker(Invoker): + + def __init__(self, dynamic_stubs, methods): + self._stubs = dynamic_stubs + self._methods = methods + + def blocking(self, group, name): + return getattr(self._stubs[group], name) + + def future(self, group, name): + if self._methods[group, name].cardinality() in ( + cardinality.Cardinality.UNARY_UNARY, + cardinality.Cardinality.STREAM_UNARY): + return getattr(self._stubs[group], name).future + else: + return getattr(self._stubs[group], name) + + def event(self, group, name): + return getattr(self._stubs[group], name).event + + +class _DynamicInvokerConstructor(InvokerConstructor): + + def name(self): + return 'DynamicInvoker' + + def construct_invoker(self, generic_stub, dynamic_stubs, methods): + return _DynamicInvoker(dynamic_stubs, methods) + + +def invoker_constructors(): + """Creates a sequence of InvokerConstructors to use in tests of RPCs. + + Returns: + A sequence of InvokerConstructors. + """ + return ( + _GenericInvokerConstructor(), + _MultiCallableInvokerConstructor(), + _DynamicInvokerConstructor(), + ) diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/face/_receiver.py b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_receiver.py new file mode 100644 index 0000000000..2e444ff09d --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_receiver.py @@ -0,0 +1,95 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""A utility useful in tests of asynchronous, event-driven interfaces.""" + +import threading + +from grpc.framework.interfaces.face import face + + +class Receiver(face.ResponseReceiver): + """A utility object useful in tests of asynchronous code.""" + + def __init__(self): + self._condition = threading.Condition() + self._initial_metadata = None + self._responses = [] + self._terminal_metadata = None + self._code = None + self._details = None + self._completed = False + self._abortion = None + + def abort(self, abortion): + with self._condition: + self._abortion = abortion + self._condition.notify_all() + + def initial_metadata(self, initial_metadata): + with self._condition: + self._initial_metadata = initial_metadata + + def response(self, response): + with self._condition: + self._responses.append(response) + + def complete(self, terminal_metadata, code, details): + with self._condition: + self._terminal_metadata = terminal_metadata + self._code = code + self._details = details + self._completed = True + self._condition.notify_all() + + def block_until_terminated(self): + with self._condition: + while self._abortion is None and not self._completed: + self._condition.wait() + + def unary_response(self): + with self._condition: + if self._abortion is not None: + raise AssertionError('Aborted with abortion "%s"!' % self._abortion) + elif len(self._responses) != 1: + raise AssertionError( + '%d responses received, not exactly one!', len(self._responses)) + else: + return self._responses[0] + + def stream_responses(self): + with self._condition: + if self._abortion is None: + return list(self._responses) + else: + raise AssertionError('Aborted with abortion "%s"!' % self._abortion) + + def abortion(self): + with self._condition: + return self._abortion diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/face/_service.py b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_service.py new file mode 100644 index 0000000000..e25b8a038c --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_service.py @@ -0,0 +1,332 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Private interfaces implemented by data sets used in Face-layer tests.""" + +import abc + +# face is referenced from specification in this module. +from grpc.framework.interfaces.face import face # pylint: disable=unused-import +from grpc_test.framework.interfaces.face import test_interfaces + + +class UnaryUnaryTestMethodImplementation(test_interfaces.Method): + """A controllable implementation of a unary-unary method.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def service(self, request, response_callback, context, control): + """Services an RPC that accepts one message and produces one message. + + Args: + request: The single request message for the RPC. + response_callback: A callback to be called to accept the response message + of the RPC. + context: An face.ServicerContext object. + control: A test_control.Control to control execution of this method. + + Raises: + abandonment.Abandoned: May or may not be raised when the RPC has been + aborted. + """ + raise NotImplementedError() + + +class UnaryUnaryTestMessages(object): + """A type for unary-request-unary-response message pairings.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def request(self): + """Affords a request message. + + Implementations of this method should return a different message with each + call so that multiple test executions of the test method may be made with + different inputs. + + Returns: + A request message. + """ + raise NotImplementedError() + + @abc.abstractmethod + def verify(self, request, response, test_case): + """Verifies that the computed response matches the given request. + + Args: + request: A request message. + response: A response message. + test_case: A unittest.TestCase object affording useful assertion methods. + + Raises: + AssertionError: If the request and response do not match, indicating that + there was some problem executing the RPC under test. + """ + raise NotImplementedError() + + +class UnaryStreamTestMethodImplementation(test_interfaces.Method): + """A controllable implementation of a unary-stream method.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def service(self, request, response_consumer, context, control): + """Services an RPC that takes one message and produces a stream of messages. + + Args: + request: The single request message for the RPC. + response_consumer: A stream.Consumer to be called to accept the response + messages of the RPC. + context: A face.ServicerContext object. + control: A test_control.Control to control execution of this method. + + Raises: + abandonment.Abandoned: May or may not be raised when the RPC has been + aborted. + """ + raise NotImplementedError() + + +class UnaryStreamTestMessages(object): + """A type for unary-request-stream-response message pairings.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def request(self): + """Affords a request message. + + Implementations of this method should return a different message with each + call so that multiple test executions of the test method may be made with + different inputs. + + Returns: + A request message. + """ + raise NotImplementedError() + + @abc.abstractmethod + def verify(self, request, responses, test_case): + """Verifies that the computed responses match the given request. + + Args: + request: A request message. + responses: A sequence of response messages. + test_case: A unittest.TestCase object affording useful assertion methods. + + Raises: + AssertionError: If the request and responses do not match, indicating that + there was some problem executing the RPC under test. + """ + raise NotImplementedError() + + +class StreamUnaryTestMethodImplementation(test_interfaces.Method): + """A controllable implementation of a stream-unary method.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def service(self, response_callback, context, control): + """Services an RPC that takes a stream of messages and produces one message. + + Args: + response_callback: A callback to be called to accept the response message + of the RPC. + context: A face.ServicerContext object. + control: A test_control.Control to control execution of this method. + + Returns: + A stream.Consumer with which to accept the request messages of the RPC. + The consumer returned from this method may or may not be invoked to + completion: in the case of RPC abortion, RPC Framework will simply stop + passing messages to this object. Implementations must not assume that + this object will be called to completion of the request stream or even + called at all. + + Raises: + abandonment.Abandoned: May or may not be raised when the RPC has been + aborted. + """ + raise NotImplementedError() + + +class StreamUnaryTestMessages(object): + """A type for stream-request-unary-response message pairings.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def requests(self): + """Affords a sequence of request messages. + + Implementations of this method should return a different sequences with each + call so that multiple test executions of the test method may be made with + different inputs. + + Returns: + A sequence of request messages. + """ + raise NotImplementedError() + + @abc.abstractmethod + def verify(self, requests, response, test_case): + """Verifies that the computed response matches the given requests. + + Args: + requests: A sequence of request messages. + response: A response message. + test_case: A unittest.TestCase object affording useful assertion methods. + + Raises: + AssertionError: If the requests and response do not match, indicating that + there was some problem executing the RPC under test. + """ + raise NotImplementedError() + + +class StreamStreamTestMethodImplementation(test_interfaces.Method): + """A controllable implementation of a stream-stream method.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def service(self, response_consumer, context, control): + """Services an RPC that accepts and produces streams of messages. + + Args: + response_consumer: A stream.Consumer to be called to accept the response + messages of the RPC. + context: A face.ServicerContext object. + control: A test_control.Control to control execution of this method. + + Returns: + A stream.Consumer with which to accept the request messages of the RPC. + The consumer returned from this method may or may not be invoked to + completion: in the case of RPC abortion, RPC Framework will simply stop + passing messages to this object. Implementations must not assume that + this object will be called to completion of the request stream or even + called at all. + + Raises: + abandonment.Abandoned: May or may not be raised when the RPC has been + aborted. + """ + raise NotImplementedError() + + +class StreamStreamTestMessages(object): + """A type for stream-request-stream-response message pairings.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def requests(self): + """Affords a sequence of request messages. + + Implementations of this method should return a different sequences with each + call so that multiple test executions of the test method may be made with + different inputs. + + Returns: + A sequence of request messages. + """ + raise NotImplementedError() + + @abc.abstractmethod + def verify(self, requests, responses, test_case): + """Verifies that the computed response matches the given requests. + + Args: + requests: A sequence of request messages. + responses: A sequence of response messages. + test_case: A unittest.TestCase object affording useful assertion methods. + + Raises: + AssertionError: If the requests and responses do not match, indicating + that there was some problem executing the RPC under test. + """ + raise NotImplementedError() + + +class TestService(object): + """A specification of implemented methods to use in tests.""" + + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def unary_unary_scenarios(self): + """Affords unary-request-unary-response test methods and their messages. + + Returns: + A dict from method group-name pair to implementation/messages pair. The + first element of the pair is a UnaryUnaryTestMethodImplementation object + and the second element is a sequence of UnaryUnaryTestMethodMessages + objects. + """ + raise NotImplementedError() + + @abc.abstractmethod + def unary_stream_scenarios(self): + """Affords unary-request-stream-response test methods and their messages. + + Returns: + A dict from method group-name pair to implementation/messages pair. The + first element of the pair is a UnaryStreamTestMethodImplementation + object and the second element is a sequence of + UnaryStreamTestMethodMessages objects. + """ + raise NotImplementedError() + + @abc.abstractmethod + def stream_unary_scenarios(self): + """Affords stream-request-unary-response test methods and their messages. + + Returns: + A dict from method group-name pair to implementation/messages pair. The + first element of the pair is a StreamUnaryTestMethodImplementation + object and the second element is a sequence of + StreamUnaryTestMethodMessages objects. + """ + raise NotImplementedError() + + @abc.abstractmethod + def stream_stream_scenarios(self): + """Affords stream-request-stream-response test methods and their messages. + + Returns: + A dict from method group-name pair to implementation/messages pair. The + first element of the pair is a StreamStreamTestMethodImplementation + object and the second element is a sequence of + StreamStreamTestMethodMessages objects. + """ + raise NotImplementedError() diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/face/_stock_service.py b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_stock_service.py new file mode 100644 index 0000000000..1dd2ec3633 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/face/_stock_service.py @@ -0,0 +1,396 @@ +B# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Examples of Python implementations of the stock.proto Stock service.""" + +from grpc.framework.common import cardinality +from grpc.framework.foundation import abandonment +from grpc.framework.foundation import stream +from grpc_test.framework.common import test_constants +from grpc_test.framework.interfaces.face import _service +from grpc_test._junkdrawer import stock_pb2 + +_STOCK_GROUP_NAME = 'Stock' +_SYMBOL_FORMAT = 'test symbol:%03d' + +# A test-appropriate security-pricing function. :-P +_price = lambda symbol_name: float(hash(symbol_name) % 4096) + + +def _get_last_trade_price(stock_request, stock_reply_callback, control, active): + """A unary-request, unary-response test method.""" + control.control() + if active(): + stock_reply_callback( + stock_pb2.StockReply( + symbol=stock_request.symbol, price=_price(stock_request.symbol))) + else: + raise abandonment.Abandoned() + + +def _get_last_trade_price_multiple(stock_reply_consumer, control, active): + """A stream-request, stream-response test method.""" + def stock_reply_for_stock_request(stock_request): + control.control() + if active(): + return stock_pb2.StockReply( + symbol=stock_request.symbol, price=_price(stock_request.symbol)) + else: + raise abandonment.Abandoned() + + class StockRequestConsumer(stream.Consumer): + + def consume(self, stock_request): + stock_reply_consumer.consume(stock_reply_for_stock_request(stock_request)) + + def terminate(self): + control.control() + stock_reply_consumer.terminate() + + def consume_and_terminate(self, stock_request): + stock_reply_consumer.consume_and_terminate( + stock_reply_for_stock_request(stock_request)) + + return StockRequestConsumer() + + +def _watch_future_trades(stock_request, stock_reply_consumer, control, active): + """A unary-request, stream-response test method.""" + base_price = _price(stock_request.symbol) + for index in range(stock_request.num_trades_to_watch): + control.control() + if active(): + stock_reply_consumer.consume( + stock_pb2.StockReply( + symbol=stock_request.symbol, price=base_price + index)) + else: + raise abandonment.Abandoned() + stock_reply_consumer.terminate() + + +def _get_highest_trade_price(stock_reply_callback, control, active): + """A stream-request, unary-response test method.""" + + class StockRequestConsumer(stream.Consumer): + """Keeps an ongoing record of the most valuable symbol yet consumed.""" + + def __init__(self): + self._symbol = None + self._price = None + + def consume(self, stock_request): + control.control() + if active(): + if self._price is None: + self._symbol = stock_request.symbol + self._price = _price(stock_request.symbol) + else: + candidate_price = _price(stock_request.symbol) + if self._price < candidate_price: + self._symbol = stock_request.symbol + self._price = candidate_price + + def terminate(self): + control.control() + if active(): + if self._symbol is None: + raise ValueError() + else: + stock_reply_callback( + stock_pb2.StockReply(symbol=self._symbol, price=self._price)) + self._symbol = None + self._price = None + + def consume_and_terminate(self, stock_request): + control.control() + if active(): + if self._price is None: + stock_reply_callback( + stock_pb2.StockReply( + symbol=stock_request.symbol, + price=_price(stock_request.symbol))) + else: + candidate_price = _price(stock_request.symbol) + if self._price < candidate_price: + stock_reply_callback( + stock_pb2.StockReply( + symbol=stock_request.symbol, price=candidate_price)) + else: + stock_reply_callback( + stock_pb2.StockReply( + symbol=self._symbol, price=self._price)) + + self._symbol = None + self._price = None + + return StockRequestConsumer() + + +class GetLastTradePrice(_service.UnaryUnaryTestMethodImplementation): + """GetLastTradePrice for use in tests.""" + + def group(self): + return _STOCK_GROUP_NAME + + def name(self): + return 'GetLastTradePrice' + + def cardinality(self): + return cardinality.Cardinality.UNARY_UNARY + + def request_class(self): + return stock_pb2.StockRequest + + def response_class(self): + return stock_pb2.StockReply + + def serialize_request(self, request): + return request.SerializeToString() + + def deserialize_request(self, serialized_request): + return stock_pb2.StockRequest.FromString(serialized_request) + + def serialize_response(self, response): + return response.SerializeToString() + + def deserialize_response(self, serialized_response): + return stock_pb2.StockReply.FromString(serialized_response) + + def service(self, request, response_callback, context, control): + _get_last_trade_price( + request, response_callback, control, context.is_active) + + +class GetLastTradePriceMessages(_service.UnaryUnaryTestMessages): + + def __init__(self): + self._index = 0 + + def request(self): + symbol = _SYMBOL_FORMAT % self._index + self._index += 1 + return stock_pb2.StockRequest(symbol=symbol) + + def verify(self, request, response, test_case): + test_case.assertEqual(request.symbol, response.symbol) + test_case.assertEqual(_price(request.symbol), response.price) + + +class GetLastTradePriceMultiple(_service.StreamStreamTestMethodImplementation): + """GetLastTradePriceMultiple for use in tests.""" + + def group(self): + return _STOCK_GROUP_NAME + + def name(self): + return 'GetLastTradePriceMultiple' + + def cardinality(self): + return cardinality.Cardinality.STREAM_STREAM + + def request_class(self): + return stock_pb2.StockRequest + + def response_class(self): + return stock_pb2.StockReply + + def serialize_request(self, request): + return request.SerializeToString() + + def deserialize_request(self, serialized_request): + return stock_pb2.StockRequest.FromString(serialized_request) + + def serialize_response(self, response): + return response.SerializeToString() + + def deserialize_response(self, serialized_response): + return stock_pb2.StockReply.FromString(serialized_response) + + def service(self, response_consumer, context, control): + return _get_last_trade_price_multiple( + response_consumer, control, context.is_active) + + +class GetLastTradePriceMultipleMessages(_service.StreamStreamTestMessages): + """Pairs of message streams for use with GetLastTradePriceMultiple.""" + + def __init__(self): + self._index = 0 + + def requests(self): + base_index = self._index + self._index += 1 + return [ + stock_pb2.StockRequest(symbol=_SYMBOL_FORMAT % (base_index + index)) + for index in range(test_constants.STREAM_LENGTH)] + + def verify(self, requests, responses, test_case): + test_case.assertEqual(len(requests), len(responses)) + for stock_request, stock_reply in zip(requests, responses): + test_case.assertEqual(stock_request.symbol, stock_reply.symbol) + test_case.assertEqual(_price(stock_request.symbol), stock_reply.price) + + +class WatchFutureTrades(_service.UnaryStreamTestMethodImplementation): + """WatchFutureTrades for use in tests.""" + + def group(self): + return _STOCK_GROUP_NAME + + def name(self): + return 'WatchFutureTrades' + + def cardinality(self): + return cardinality.Cardinality.UNARY_STREAM + + def request_class(self): + return stock_pb2.StockRequest + + def response_class(self): + return stock_pb2.StockReply + + def serialize_request(self, request): + return request.SerializeToString() + + def deserialize_request(self, serialized_request): + return stock_pb2.StockRequest.FromString(serialized_request) + + def serialize_response(self, response): + return response.SerializeToString() + + def deserialize_response(self, serialized_response): + return stock_pb2.StockReply.FromString(serialized_response) + + def service(self, request, response_consumer, context, control): + _watch_future_trades(request, response_consumer, control, context.is_active) + + +class WatchFutureTradesMessages(_service.UnaryStreamTestMessages): + """Pairs of a single request message and a sequence of response messages.""" + + def __init__(self): + self._index = 0 + + def request(self): + symbol = _SYMBOL_FORMAT % self._index + self._index += 1 + return stock_pb2.StockRequest( + symbol=symbol, num_trades_to_watch=test_constants.STREAM_LENGTH) + + def verify(self, request, responses, test_case): + test_case.assertEqual(test_constants.STREAM_LENGTH, len(responses)) + base_price = _price(request.symbol) + for index, response in enumerate(responses): + test_case.assertEqual(base_price + index, response.price) + + +class GetHighestTradePrice(_service.StreamUnaryTestMethodImplementation): + """GetHighestTradePrice for use in tests.""" + + def group(self): + return _STOCK_GROUP_NAME + + def name(self): + return 'GetHighestTradePrice' + + def cardinality(self): + return cardinality.Cardinality.STREAM_UNARY + + def request_class(self): + return stock_pb2.StockRequest + + def response_class(self): + return stock_pb2.StockReply + + def serialize_request(self, request): + return request.SerializeToString() + + def deserialize_request(self, serialized_request): + return stock_pb2.StockRequest.FromString(serialized_request) + + def serialize_response(self, response): + return response.SerializeToString() + + def deserialize_response(self, serialized_response): + return stock_pb2.StockReply.FromString(serialized_response) + + def service(self, response_callback, context, control): + return _get_highest_trade_price( + response_callback, control, context.is_active) + + +class GetHighestTradePriceMessages(_service.StreamUnaryTestMessages): + + def requests(self): + return [ + stock_pb2.StockRequest(symbol=_SYMBOL_FORMAT % index) + for index in range(test_constants.STREAM_LENGTH)] + + def verify(self, requests, response, test_case): + price = None + symbol = None + for stock_request in requests: + current_symbol = stock_request.symbol + current_price = _price(current_symbol) + if price is None or price < current_price: + price = current_price + symbol = current_symbol + test_case.assertEqual(price, response.price) + test_case.assertEqual(symbol, response.symbol) + + +class StockTestService(_service.TestService): + """A corpus of test data with one method of each RPC cardinality.""" + + def unary_unary_scenarios(self): + return { + (_STOCK_GROUP_NAME, 'GetLastTradePrice'): ( + GetLastTradePrice(), [GetLastTradePriceMessages()]), + } + + def unary_stream_scenarios(self): + return { + (_STOCK_GROUP_NAME, 'WatchFutureTrades'): ( + WatchFutureTrades(), [WatchFutureTradesMessages()]), + } + + def stream_unary_scenarios(self): + return { + (_STOCK_GROUP_NAME, 'GetHighestTradePrice'): ( + GetHighestTradePrice(), [GetHighestTradePriceMessages()]) + } + + def stream_stream_scenarios(self): + return { + (_STOCK_GROUP_NAME, 'GetLastTradePriceMultiple'): ( + GetLastTradePriceMultiple(), [GetLastTradePriceMultipleMessages()]), + } + + +STOCK_TEST_SERVICE = StockTestService() diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/face/test_cases.py b/src/python/grpcio_test/grpc_test/framework/interfaces/face/test_cases.py new file mode 100644 index 0000000000..ca623662f7 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/face/test_cases.py @@ -0,0 +1,67 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Tools for creating tests of implementations of the Face layer.""" + +# unittest is referenced from specification in this module. +import unittest # pylint: disable=unused-import + +# test_interfaces is referenced from specification in this module. +from grpc_test.framework.interfaces.face import _blocking_invocation_inline_service +from grpc_test.framework.interfaces.face import _event_invocation_synchronous_event_service +from grpc_test.framework.interfaces.face import _future_invocation_asynchronous_event_service +from grpc_test.framework.interfaces.face import _invocation +from grpc_test.framework.interfaces.face import test_interfaces # pylint: disable=unused-import + +_TEST_CASE_SUPERCLASSES = ( + _blocking_invocation_inline_service.TestCase, + _event_invocation_synchronous_event_service.TestCase, + _future_invocation_asynchronous_event_service.TestCase, +) + + +def test_cases(implementation): + """Creates unittest.TestCase classes for a given Face layer implementation. + + Args: + implementation: A test_interfaces.Implementation specifying creation and + destruction of a given Face layer implementation. + + Returns: + A sequence of subclasses of unittest.TestCase defining tests of the + specified Face layer implementation. + """ + test_case_classes = [] + for invoker_constructor in _invocation.invoker_constructors(): + for super_class in _TEST_CASE_SUPERCLASSES: + test_case_classes.append( + type(invoker_constructor.name() + super_class.NAME, (super_class,), + {'implementation': implementation, + 'invoker_constructor': invoker_constructor})) + return test_case_classes diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/face/test_interfaces.py b/src/python/grpcio_test/grpc_test/framework/interfaces/face/test_interfaces.py new file mode 100644 index 0000000000..b2b5c10fa6 --- /dev/null +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/face/test_interfaces.py @@ -0,0 +1,229 @@ +# Copyright 2015, Google Inc. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions are +# met: +# +# * Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# * Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following disclaimer +# in the documentation and/or other materials provided with the +# distribution. +# * Neither the name of Google Inc. nor the names of its +# contributors may be used to endorse or promote products derived from +# this software without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +"""Interfaces used in tests of implementations of the Face layer.""" + +import abc + +from grpc.framework.common import cardinality # pylint: disable=unused-import +from grpc.framework.interfaces.face import face # pylint: disable=unused-import + + +class Method(object): + """Specifies a method to be used in tests.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def group(self): + """Identify the group of the method. + + Returns: + The group of the method. + """ + raise NotImplementedError() + + @abc.abstractmethod + def name(self): + """Identify the name of the method. + + Returns: + The name of the method. + """ + raise NotImplementedError() + + @abc.abstractmethod + def cardinality(self): + """Identify the cardinality of the method. + + Returns: + A cardinality.Cardinality value describing the streaming semantics of the + method. + """ + raise NotImplementedError() + + @abc.abstractmethod + def request_class(self): + """Identify the class used for the method's request objects. + + Returns: + The class object of the class to which the method's request objects + belong. + """ + raise NotImplementedError() + + @abc.abstractmethod + def response_class(self): + """Identify the class used for the method's response objects. + + Returns: + The class object of the class to which the method's response objects + belong. + """ + raise NotImplementedError() + + @abc.abstractmethod + def serialize_request(self, request): + """Serialize the given request object. + + Args: + request: A request object appropriate for this method. + """ + raise NotImplementedError() + + @abc.abstractmethod + def deserialize_request(self, serialized_request): + """Synthesize a request object from a given bytestring. + + Args: + serialized_request: A bytestring deserializable into a request object + appropriate for this method. + """ + raise NotImplementedError() + + @abc.abstractmethod + def serialize_response(self, response): + """Serialize the given response object. + + Args: + response: A response object appropriate for this method. + """ + raise NotImplementedError() + + @abc.abstractmethod + def deserialize_response(self, serialized_response): + """Synthesize a response object from a given bytestring. + + Args: + serialized_response: A bytestring deserializable into a response object + appropriate for this method. + """ + raise NotImplementedError() + + +class Implementation(object): + """Specifies an implementation of the Face layer.""" + __metaclass__ = abc.ABCMeta + + @abc.abstractmethod + def instantiate( + self, methods, method_implementations, + multi_method_implementation): + """Instantiates the Face layer implementation to be used in a test. + + Args: + methods: A sequence of Method objects describing the methods available to + be called during the test. + method_implementations: A dictionary from group-name pair to + face.MethodImplementation object specifying implementation of a method. + multi_method_implementation: A face.MultiMethodImplementation or None. + + Returns: + A sequence of length three the first element of which is a + face.GenericStub, the second element of which is dictionary from groups + to face.DynamicStubs affording invocation of the group's methods, and + the third element of which is an arbitrary memo object to be kept and + passed to destantiate at the conclusion of the test. The returned stubs + must be backed by the provided implementations. + """ + raise NotImplementedError() + + @abc.abstractmethod + def destantiate(self, memo): + """Destroys the Face layer implementation under test. + + Args: + memo: The object from the third position of the return value of a call to + instantiate. + """ + raise NotImplementedError() + + @abc.abstractmethod + def invocation_metadata(self): + """Provides the metadata to be used when invoking a test RPC. + + Returns: + An object to use as the supplied-at-invocation-time metadata in a test + RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def initial_metadata(self): + """Provides the metadata for use as a test RPC's first servicer metadata. + + Returns: + An object to use as the from-the-servicer-before-responses metadata in a + test RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def terminal_metadata(self): + """Provides the metadata for use as a test RPC's second servicer metadata. + + Returns: + An object to use as the from-the-servicer-after-all-responses metadata in + a test RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def code(self): + """Provides the value for use as a test RPC's code. + + Returns: + An object to use as the from-the-servicer code in a test RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def details(self): + """Provides the value for use as a test RPC's details. + + Returns: + An object to use as the from-the-servicer details in a test RPC. + """ + raise NotImplementedError() + + @abc.abstractmethod + def metadata_transmitted(self, original_metadata, transmitted_metadata): + """Identifies whether or not metadata was properly transmitted. + + Args: + original_metadata: A metadata value passed to the Face interface + implementation under test. + transmitted_metadata: The same metadata value after having been + transmitted via an RPC performed by the Face interface implementation + under test. + + Returns: + Whether or not the metadata was properly transmitted by the Face interface + implementation under test. + """ + raise NotImplementedError() diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/links/test_cases.py b/src/python/grpcio_test/grpc_test/framework/interfaces/links/test_cases.py index 1e575d1a9e..ecf49d9cdb 100644 --- a/src/python/grpcio_test/grpc_test/framework/interfaces/links/test_cases.py +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/links/test_cases.py @@ -300,7 +300,7 @@ class TransmissionTest(object): invocation_operation_id, 0, _TRANSMISSION_GROUP, _TRANSMISSION_METHOD, links.Ticket.Subscription.FULL, timeout, 0, invocation_initial_metadata, invocation_payload, invocation_terminal_metadata, invocation_code, - invocation_message, links.Ticket.Termination.COMPLETION) + invocation_message, links.Ticket.Termination.COMPLETION, None) self._invocation_link.accept_ticket(original_invocation_ticket) self._service_mate.block_until_tickets_satisfy( @@ -317,7 +317,7 @@ class TransmissionTest(object): service_operation_id, 0, None, None, links.Ticket.Subscription.FULL, timeout, 0, service_initial_metadata, service_payload, service_terminal_metadata, service_code, service_message, - links.Ticket.Termination.COMPLETION) + links.Ticket.Termination.COMPLETION, None) self._service_link.accept_ticket(original_service_ticket) self._invocation_mate.block_until_tickets_satisfy(terminated) self._assert_is_valid_service_sequence( diff --git a/src/python/grpcio_test/grpc_test/framework/interfaces/links/test_utilities.py b/src/python/grpcio_test/grpc_test/framework/interfaces/links/test_utilities.py index 6c2e3346aa..39c7f2fc63 100644 --- a/src/python/grpcio_test/grpc_test/framework/interfaces/links/test_utilities.py +++ b/src/python/grpcio_test/grpc_test/framework/interfaces/links/test_utilities.py @@ -29,9 +29,42 @@ """State and behavior appropriate for use in tests.""" +import logging import threading +import time from grpc.framework.interfaces.links import links +from grpc.framework.interfaces.links import utilities + +# A more-or-less arbitrary limit on the length of raw data values to be logged. +_UNCOMFORTABLY_LONG = 48 + + +def _safe_for_log_ticket(ticket): + """Creates a safe-for-printing-to-the-log ticket for a given ticket. + + Args: + ticket: Any links.Ticket. + + Returns: + A links.Ticket that is as much as can be equal to the given ticket but + possibly features values like the string "<payload of length 972321>" in + place of the actual values of the given ticket. + """ + if isinstance(ticket.payload, (basestring,)): + payload_length = len(ticket.payload) + else: + payload_length = -1 + if payload_length < _UNCOMFORTABLY_LONG: + return ticket + else: + return links.Ticket( + ticket.operation_id, ticket.sequence_number, + ticket.group, ticket.method, ticket.subscription, ticket.timeout, + ticket.allowance, ticket.initial_metadata, + '<payload of length {}>'.format(payload_length), + ticket.terminal_metadata, ticket.code, ticket.message, + ticket.termination, None) class RecordingLink(links.Link): @@ -64,3 +97,71 @@ class RecordingLink(links.Link): """Returns a copy of the list of all tickets received by this Link.""" with self._condition: return tuple(self._tickets) + + +class _Pipe(object): + """A conduit that logs all tickets passed through it.""" + + def __init__(self, name): + self._lock = threading.Lock() + self._name = name + self._left_mate = utilities.NULL_LINK + self._right_mate = utilities.NULL_LINK + + def accept_left_to_right_ticket(self, ticket): + with self._lock: + logging.warning( + '%s: moving left to right through %s: %s', time.time(), self._name, + _safe_for_log_ticket(ticket)) + try: + self._right_mate.accept_ticket(ticket) + except Exception as e: # pylint: disable=broad-except + logging.exception(e) + + def accept_right_to_left_ticket(self, ticket): + with self._lock: + logging.warning( + '%s: moving right to left through %s: %s', time.time(), self._name, + _safe_for_log_ticket(ticket)) + try: + self._left_mate.accept_ticket(ticket) + except Exception as e: # pylint: disable=broad-except + logging.exception(e) + + def join_left_mate(self, left_mate): + with self._lock: + self._left_mate = utilities.NULL_LINK if left_mate is None else left_mate + + def join_right_mate(self, right_mate): + with self._lock: + self._right_mate = ( + utilities.NULL_LINK if right_mate is None else right_mate) + + +class _Facade(links.Link): + + def __init__(self, accept, join): + self._accept = accept + self._join = join + + def accept_ticket(self, ticket): + self._accept(ticket) + + def join_link(self, link): + self._join(link) + + +def logging_links(name): + """Creates a conduit that logs all tickets passed through it. + + Args: + name: A name to use for the conduit to identify itself in logging output. + + Returns: + Two links.Links, the first of which is the "left" side of the conduit + and the second of which is the "right" side of the conduit. + """ + pipe = _Pipe(name) + left_facade = _Facade(pipe.accept_left_to_right_ticket, pipe.join_left_mate) + right_facade = _Facade(pipe.accept_right_to_left_ticket, pipe.join_right_mate) + return left_facade, right_facade |