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# Copyright 2016, 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.
import collections
from concurrent import futures
import contextlib
import distutils.spawn
import errno
import importlib
import os
import os.path
import pkgutil
import shutil
import subprocess
import sys
import tempfile
import threading
import unittest
import grpc
from grpc_tools import protoc
from tests.unit.framework.common import test_constants
_MESSAGES_IMPORT = b'import "messages.proto";'
@contextlib.contextmanager
def _system_path(path):
old_system_path = sys.path[:]
sys.path = sys.path[0:1] + path + sys.path[1:]
yield
sys.path = old_system_path
class DummySplitServicer(object):
def __init__(self, request_class, response_class):
self.request_class = request_class
self.response_class = response_class
def Call(self, request, context):
return self.response_class()
class SeparateTestMixin(object):
def testImportAttributes(self):
with _system_path([self.python_out_directory]):
pb2 = importlib.import_module(self.pb2_import)
pb2.Request
pb2.Response
if self.should_find_services_in_pb2:
pb2.TestServiceServicer
else:
with self.assertRaises(AttributeError):
pb2.TestServiceServicer
with _system_path([self.grpc_python_out_directory]):
pb2_grpc = importlib.import_module(self.pb2_grpc_import)
pb2_grpc.TestServiceServicer
with self.assertRaises(AttributeError):
pb2_grpc.Request
with self.assertRaises(AttributeError):
pb2_grpc.Response
def testCall(self):
with _system_path([self.python_out_directory]):
pb2 = importlib.import_module(self.pb2_import)
with _system_path([self.grpc_python_out_directory]):
pb2_grpc = importlib.import_module(self.pb2_grpc_import)
server = grpc.server(
futures.ThreadPoolExecutor(max_workers=test_constants.POOL_SIZE))
pb2_grpc.add_TestServiceServicer_to_server(
DummySplitServicer(pb2.Request, pb2.Response), server)
port = server.add_insecure_port('[::]:0')
server.start()
channel = grpc.insecure_channel('localhost:{}'.format(port))
stub = pb2_grpc.TestServiceStub(channel)
request = pb2.Request()
expected_response = pb2.Response()
response = stub.Call(request)
self.assertEqual(expected_response, response)
class CommonTestMixin(object):
def testImportAttributes(self):
with _system_path([self.python_out_directory]):
pb2 = importlib.import_module(self.pb2_import)
pb2.Request
pb2.Response
if self.should_find_services_in_pb2:
pb2.TestServiceServicer
else:
with self.assertRaises(AttributeError):
pb2.TestServiceServicer
with _system_path([self.grpc_python_out_directory]):
pb2_grpc = importlib.import_module(self.pb2_grpc_import)
pb2_grpc.TestServiceServicer
with self.assertRaises(AttributeError):
pb2_grpc.Request
with self.assertRaises(AttributeError):
pb2_grpc.Response
def testCall(self):
with _system_path([self.python_out_directory]):
pb2 = importlib.import_module(self.pb2_import)
with _system_path([self.grpc_python_out_directory]):
pb2_grpc = importlib.import_module(self.pb2_grpc_import)
server = grpc.server(
futures.ThreadPoolExecutor(max_workers=test_constants.POOL_SIZE))
pb2_grpc.add_TestServiceServicer_to_server(
DummySplitServicer(pb2.Request, pb2.Response), server)
port = server.add_insecure_port('[::]:0')
server.start()
channel = grpc.insecure_channel('localhost:{}'.format(port))
stub = pb2_grpc.TestServiceStub(channel)
request = pb2.Request()
expected_response = pb2.Response()
response = stub.Call(request)
self.assertEqual(expected_response, response)
class SameSeparateTest(unittest.TestCase, SeparateTestMixin):
def setUp(self):
same_proto_contents = pkgutil.get_data(
'tests.protoc_plugin.protos.invocation_testing', 'same.proto')
self.directory = tempfile.mkdtemp(suffix='same_separate', dir='.')
self.proto_directory = os.path.join(self.directory, 'proto_path')
self.python_out_directory = os.path.join(self.directory, 'python_out')
self.grpc_python_out_directory = os.path.join(self.directory,
'grpc_python_out')
os.makedirs(self.proto_directory)
os.makedirs(self.python_out_directory)
os.makedirs(self.grpc_python_out_directory)
same_proto_file = os.path.join(self.proto_directory,
'same_separate.proto')
open(same_proto_file, 'wb').write(same_proto_contents)
protoc_result = protoc.main([
'',
'--proto_path={}'.format(self.proto_directory),
'--python_out={}'.format(self.python_out_directory),
'--grpc_python_out=grpc_2_0:{}'.format(
self.grpc_python_out_directory),
same_proto_file,
])
if protoc_result != 0:
raise Exception("unexpected protoc error")
open(os.path.join(self.grpc_python_out_directory, '__init__.py'),
'w').write('')
open(os.path.join(self.python_out_directory, '__init__.py'),
'w').write('')
self.pb2_import = 'same_separate_pb2'
self.pb2_grpc_import = 'same_separate_pb2_grpc'
self.should_find_services_in_pb2 = False
def tearDown(self):
shutil.rmtree(self.directory)
class SameCommonTest(unittest.TestCase, CommonTestMixin):
def setUp(self):
same_proto_contents = pkgutil.get_data(
'tests.protoc_plugin.protos.invocation_testing', 'same.proto')
self.directory = tempfile.mkdtemp(suffix='same_common', dir='.')
self.proto_directory = os.path.join(self.directory, 'proto_path')
self.python_out_directory = os.path.join(self.directory, 'python_out')
self.grpc_python_out_directory = self.python_out_directory
os.makedirs(self.proto_directory)
os.makedirs(self.python_out_directory)
same_proto_file = os.path.join(self.proto_directory,
'same_common.proto')
open(same_proto_file, 'wb').write(same_proto_contents)
protoc_result = protoc.main([
'',
'--proto_path={}'.format(self.proto_directory),
'--python_out={}'.format(self.python_out_directory),
'--grpc_python_out={}'.format(self.grpc_python_out_directory),
same_proto_file,
])
if protoc_result != 0:
raise Exception("unexpected protoc error")
open(os.path.join(self.python_out_directory, '__init__.py'),
'w').write('')
self.pb2_import = 'same_common_pb2'
self.pb2_grpc_import = 'same_common_pb2_grpc'
self.should_find_services_in_pb2 = True
def tearDown(self):
shutil.rmtree(self.directory)
class SplitCommonTest(unittest.TestCase, CommonTestMixin):
def setUp(self):
services_proto_contents = pkgutil.get_data(
'tests.protoc_plugin.protos.invocation_testing.split_services',
'services.proto')
messages_proto_contents = pkgutil.get_data(
'tests.protoc_plugin.protos.invocation_testing.split_messages',
'messages.proto')
self.directory = tempfile.mkdtemp(suffix='split_common', dir='.')
self.proto_directory = os.path.join(self.directory, 'proto_path')
self.python_out_directory = os.path.join(self.directory, 'python_out')
self.grpc_python_out_directory = self.python_out_directory
os.makedirs(self.proto_directory)
os.makedirs(self.python_out_directory)
services_proto_file = os.path.join(self.proto_directory,
'split_common_services.proto')
messages_proto_file = os.path.join(self.proto_directory,
'split_common_messages.proto')
open(services_proto_file, 'wb').write(
services_proto_contents.replace(
_MESSAGES_IMPORT, b'import "split_common_messages.proto";'))
open(messages_proto_file, 'wb').write(messages_proto_contents)
protoc_result = protoc.main([
'',
'--proto_path={}'.format(self.proto_directory),
'--python_out={}'.format(self.python_out_directory),
'--grpc_python_out={}'.format(self.grpc_python_out_directory),
services_proto_file,
messages_proto_file,
])
if protoc_result != 0:
raise Exception("unexpected protoc error")
open(os.path.join(self.python_out_directory, '__init__.py'),
'w').write('')
self.pb2_import = 'split_common_messages_pb2'
self.pb2_grpc_import = 'split_common_services_pb2_grpc'
self.should_find_services_in_pb2 = False
def tearDown(self):
shutil.rmtree(self.directory)
class SplitSeparateTest(unittest.TestCase, SeparateTestMixin):
def setUp(self):
services_proto_contents = pkgutil.get_data(
'tests.protoc_plugin.protos.invocation_testing.split_services',
'services.proto')
messages_proto_contents = pkgutil.get_data(
'tests.protoc_plugin.protos.invocation_testing.split_messages',
'messages.proto')
self.directory = tempfile.mkdtemp(suffix='split_separate', dir='.')
self.proto_directory = os.path.join(self.directory, 'proto_path')
self.python_out_directory = os.path.join(self.directory, 'python_out')
self.grpc_python_out_directory = os.path.join(self.directory,
'grpc_python_out')
os.makedirs(self.proto_directory)
os.makedirs(self.python_out_directory)
os.makedirs(self.grpc_python_out_directory)
services_proto_file = os.path.join(self.proto_directory,
'split_separate_services.proto')
messages_proto_file = os.path.join(self.proto_directory,
'split_separate_messages.proto')
open(services_proto_file, 'wb').write(
services_proto_contents.replace(
_MESSAGES_IMPORT, b'import "split_separate_messages.proto";'))
open(messages_proto_file, 'wb').write(messages_proto_contents)
protoc_result = protoc.main([
'',
'--proto_path={}'.format(self.proto_directory),
'--python_out={}'.format(self.python_out_directory),
'--grpc_python_out=grpc_2_0:{}'.format(
self.grpc_python_out_directory),
services_proto_file,
messages_proto_file,
])
if protoc_result != 0:
raise Exception("unexpected protoc error")
open(os.path.join(self.python_out_directory, '__init__.py'),
'w').write('')
self.pb2_import = 'split_separate_messages_pb2'
self.pb2_grpc_import = 'split_separate_services_pb2_grpc'
self.should_find_services_in_pb2 = False
def tearDown(self):
shutil.rmtree(self.directory)
if __name__ == '__main__':
unittest.main(verbosity=2)
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