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# 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.
"""Implementations of interoperability test methods."""
from __future__ import print_function
import enum
import json
import os
import threading
import time
from oauth2client import client as oauth2client_client
from grpc.framework.common import cardinality
from grpc.framework.interfaces.face import face
from tests.interop import empty_pb2
from tests.interop import messages_pb2
from tests.interop import test_pb2
_TIMEOUT = 7
class TestService(test_pb2.BetaTestServiceServicer):
def EmptyCall(self, request, context):
return empty_pb2.Empty()
def UnaryCall(self, request, context):
return messages_pb2.SimpleResponse(
payload=messages_pb2.Payload(
type=messages_pb2.COMPRESSABLE,
body=b'\x00' * request.response_size))
def StreamingOutputCall(self, request, context):
for response_parameters in request.response_parameters:
yield messages_pb2.StreamingOutputCallResponse(
payload=messages_pb2.Payload(
type=request.response_type,
body=b'\x00' * response_parameters.size))
def StreamingInputCall(self, request_iterator, context):
aggregate_size = 0
for request in request_iterator:
if request.payload and request.payload.body:
aggregate_size += len(request.payload.body)
return messages_pb2.StreamingInputCallResponse(
aggregated_payload_size=aggregate_size)
def FullDuplexCall(self, request_iterator, context):
for request in request_iterator:
yield messages_pb2.StreamingOutputCallResponse(
payload=messages_pb2.Payload(
type=request.payload.type,
body=b'\x00' * request.response_parameters[0].size))
# NOTE(nathaniel): Apparently this is the same as the full-duplex call?
# NOTE(atash): It isn't even called in the interop spec (Oct 22 2015)...
def HalfDuplexCall(self, request_iterator, context):
return self.FullDuplexCall(request_iterator, context)
def _large_unary_common_behavior(stub, fill_username, fill_oauth_scope):
with stub:
request = messages_pb2.SimpleRequest(
response_type=messages_pb2.COMPRESSABLE, response_size=314159,
payload=messages_pb2.Payload(body=b'\x00' * 271828),
fill_username=fill_username, fill_oauth_scope=fill_oauth_scope)
response_future = stub.UnaryCall.future(request, _TIMEOUT)
response = response_future.result()
if response.payload.type is not messages_pb2.COMPRESSABLE:
raise ValueError(
'response payload type is "%s"!' % type(response.payload.type))
if len(response.payload.body) != 314159:
raise ValueError(
'response body of incorrect size %d!' % len(response.payload.body))
return response
def _empty_unary(stub):
with stub:
response = stub.EmptyCall(empty_pb2.Empty(), _TIMEOUT)
if not isinstance(response, empty_pb2.Empty):
raise TypeError(
'response is of type "%s", not empty_pb2.Empty!', type(response))
def _large_unary(stub):
_large_unary_common_behavior(stub, False, False)
def _client_streaming(stub):
with stub:
payload_body_sizes = (27182, 8, 1828, 45904)
payloads = (
messages_pb2.Payload(body=b'\x00' * size)
for size in payload_body_sizes)
requests = (
messages_pb2.StreamingInputCallRequest(payload=payload)
for payload in payloads)
response = stub.StreamingInputCall(requests, _TIMEOUT)
if response.aggregated_payload_size != 74922:
raise ValueError(
'incorrect size %d!' % response.aggregated_payload_size)
def _server_streaming(stub):
sizes = (31415, 9, 2653, 58979)
with stub:
request = messages_pb2.StreamingOutputCallRequest(
response_type=messages_pb2.COMPRESSABLE,
response_parameters=(
messages_pb2.ResponseParameters(size=sizes[0]),
messages_pb2.ResponseParameters(size=sizes[1]),
messages_pb2.ResponseParameters(size=sizes[2]),
messages_pb2.ResponseParameters(size=sizes[3]),
))
response_iterator = stub.StreamingOutputCall(request, _TIMEOUT)
for index, response in enumerate(response_iterator):
if response.payload.type != messages_pb2.COMPRESSABLE:
raise ValueError(
'response body of invalid type %s!' % response.payload.type)
if len(response.payload.body) != sizes[index]:
raise ValueError(
'response body of invalid size %d!' % len(response.payload.body))
def _cancel_after_begin(stub):
with stub:
sizes = (27182, 8, 1828, 45904)
payloads = [messages_pb2.Payload(body=b'\x00' * size) for size in sizes]
requests = [messages_pb2.StreamingInputCallRequest(payload=payload)
for payload in payloads]
responses = stub.StreamingInputCall.future(requests, _TIMEOUT)
responses.cancel()
if not responses.cancelled():
raise ValueError('expected call to be cancelled')
class _Pipe(object):
def __init__(self):
self._condition = threading.Condition()
self._values = []
self._open = True
def __iter__(self):
return self
def __next__(self):
return self.next()
def next(self):
with self._condition:
while not self._values and self._open:
self._condition.wait()
if self._values:
return self._values.pop(0)
else:
raise StopIteration()
def add(self, value):
with self._condition:
self._values.append(value)
self._condition.notify()
def close(self):
with self._condition:
self._open = False
self._condition.notify()
def __enter__(self):
return self
def __exit__(self, type, value, traceback):
self.close()
def _ping_pong(stub):
request_response_sizes = (31415, 9, 2653, 58979)
request_payload_sizes = (27182, 8, 1828, 45904)
with stub, _Pipe() as pipe:
response_iterator = stub.FullDuplexCall(pipe, _TIMEOUT)
print('Starting ping-pong with response iterator %s' % response_iterator)
for response_size, payload_size in zip(
request_response_sizes, request_payload_sizes):
request = messages_pb2.StreamingOutputCallRequest(
response_type=messages_pb2.COMPRESSABLE,
response_parameters=(messages_pb2.ResponseParameters(
size=response_size),),
payload=messages_pb2.Payload(body=b'\x00' * payload_size))
pipe.add(request)
response = next(response_iterator)
if response.payload.type != messages_pb2.COMPRESSABLE:
raise ValueError(
'response body of invalid type %s!' % response.payload.type)
if len(response.payload.body) != response_size:
raise ValueError(
'response body of invalid size %d!' % len(response.payload.body))
def _cancel_after_first_response(stub):
request_response_sizes = (31415, 9, 2653, 58979)
request_payload_sizes = (27182, 8, 1828, 45904)
with stub, _Pipe() as pipe:
response_iterator = stub.FullDuplexCall(pipe, _TIMEOUT)
response_size = request_response_sizes[0]
payload_size = request_payload_sizes[0]
request = messages_pb2.StreamingOutputCallRequest(
response_type=messages_pb2.COMPRESSABLE,
response_parameters=(messages_pb2.ResponseParameters(
size=response_size),),
payload=messages_pb2.Payload(body=b'\x00' * payload_size))
pipe.add(request)
response = next(response_iterator)
# We test the contents of `response` in the Ping Pong test - don't check
# them here.
response_iterator.cancel()
try:
next(response_iterator)
except Exception:
pass
else:
raise ValueError('expected call to be cancelled')
def _timeout_on_sleeping_server(stub):
request_payload_size = 27182
with stub, _Pipe() as pipe:
response_iterator = stub.FullDuplexCall(pipe, 0.001)
request = messages_pb2.StreamingOutputCallRequest(
response_type=messages_pb2.COMPRESSABLE,
payload=messages_pb2.Payload(body=b'\x00' * request_payload_size))
pipe.add(request)
time.sleep(0.1)
try:
next(response_iterator)
except face.ExpirationError:
pass
else:
raise ValueError('expected call to exceed deadline')
def _empty_stream(stub):
with stub, _Pipe() as pipe:
response_iterator = stub.FullDuplexCall(pipe, _TIMEOUT)
pipe.close()
try:
next(response_iterator)
raise ValueError('expected exactly 0 responses')
except StopIteration:
pass
def _compute_engine_creds(stub, args):
response = _large_unary_common_behavior(stub, True, True)
if args.default_service_account != response.username:
raise ValueError(
'expected username %s, got %s' % (args.default_service_account,
response.username))
def _oauth2_auth_token(stub, args):
json_key_filename = os.environ[
oauth2client_client.GOOGLE_APPLICATION_CREDENTIALS]
wanted_email = json.load(open(json_key_filename, 'rb'))['client_email']
response = _large_unary_common_behavior(stub, True, True)
if wanted_email != response.username:
raise ValueError(
'expected username %s, got %s' % (wanted_email, response.username))
if args.oauth_scope.find(response.oauth_scope) == -1:
raise ValueError(
'expected to find oauth scope "%s" in received "%s"' %
(response.oauth_scope, args.oauth_scope))
@enum.unique
class TestCase(enum.Enum):
EMPTY_UNARY = 'empty_unary'
LARGE_UNARY = 'large_unary'
SERVER_STREAMING = 'server_streaming'
CLIENT_STREAMING = 'client_streaming'
PING_PONG = 'ping_pong'
CANCEL_AFTER_BEGIN = 'cancel_after_begin'
CANCEL_AFTER_FIRST_RESPONSE = 'cancel_after_first_response'
EMPTY_STREAM = 'empty_stream'
COMPUTE_ENGINE_CREDS = 'compute_engine_creds'
OAUTH2_AUTH_TOKEN = 'oauth2_auth_token'
TIMEOUT_ON_SLEEPING_SERVER = 'timeout_on_sleeping_server'
def test_interoperability(self, stub, args):
if self is TestCase.EMPTY_UNARY:
_empty_unary(stub)
elif self is TestCase.LARGE_UNARY:
_large_unary(stub)
elif self is TestCase.SERVER_STREAMING:
_server_streaming(stub)
elif self is TestCase.CLIENT_STREAMING:
_client_streaming(stub)
elif self is TestCase.PING_PONG:
_ping_pong(stub)
elif self is TestCase.CANCEL_AFTER_BEGIN:
_cancel_after_begin(stub)
elif self is TestCase.CANCEL_AFTER_FIRST_RESPONSE:
_cancel_after_first_response(stub)
elif self is TestCase.TIMEOUT_ON_SLEEPING_SERVER:
_timeout_on_sleeping_server(stub)
elif self is TestCase.EMPTY_STREAM:
_empty_stream(stub)
elif self is TestCase.COMPUTE_ENGINE_CREDS:
_compute_engine_creds(stub, args)
elif self is TestCase.OAUTH2_AUTH_TOKEN:
_oauth2_auth_token(stub, args)
else:
raise NotImplementedError('Test case "%s" not implemented!' % self.name)
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