| # Copyright 2020 The gRPC Authors |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| """Tests behavior around the compression mechanism.""" |
| |
| import asyncio |
| import logging |
| import platform |
| import random |
| import unittest |
| |
| import grpc |
| from grpc.experimental import aio |
| |
| from tests_aio.unit._test_base import AioTestBase |
| from tests_aio.unit import _common |
| |
| _GZIP_CHANNEL_ARGUMENT = ('grpc.default_compression_algorithm', 2) |
| _GZIP_DISABLED_CHANNEL_ARGUMENT = ('grpc.compression_enabled_algorithms_bitset', |
| 3) |
| _DEFLATE_DISABLED_CHANNEL_ARGUMENT = ( |
| 'grpc.compression_enabled_algorithms_bitset', 5) |
| |
| _TEST_UNARY_UNARY = '/test/TestUnaryUnary' |
| _TEST_SET_COMPRESSION = '/test/TestSetCompression' |
| _TEST_DISABLE_COMPRESSION_UNARY = '/test/TestDisableCompressionUnary' |
| _TEST_DISABLE_COMPRESSION_STREAM = '/test/TestDisableCompressionStream' |
| |
| _REQUEST = b'\x01' * 100 |
| _RESPONSE = b'\x02' * 100 |
| |
| |
| async def _test_unary_unary(unused_request, unused_context): |
| return _RESPONSE |
| |
| |
| async def _test_set_compression(unused_request_iterator, context): |
| assert _REQUEST == await context.read() |
| context.set_compression(grpc.Compression.Deflate) |
| await context.write(_RESPONSE) |
| try: |
| context.set_compression(grpc.Compression.Deflate) |
| except RuntimeError: |
| # NOTE(lidiz) Testing if the servicer context raises exception when |
| # the set_compression method is called after initial_metadata sent. |
| # After the initial_metadata sent, the server-side has no control over |
| # which compression algorithm it should use. |
| pass |
| else: |
| raise ValueError( |
| 'Expecting exceptions if set_compression is not effective') |
| |
| |
| async def _test_disable_compression_unary(request, context): |
| assert _REQUEST == request |
| context.set_compression(grpc.Compression.Deflate) |
| context.disable_next_message_compression() |
| return _RESPONSE |
| |
| |
| async def _test_disable_compression_stream(unused_request_iterator, context): |
| assert _REQUEST == await context.read() |
| context.set_compression(grpc.Compression.Deflate) |
| await context.write(_RESPONSE) |
| context.disable_next_message_compression() |
| await context.write(_RESPONSE) |
| await context.write(_RESPONSE) |
| |
| |
| _ROUTING_TABLE = { |
| _TEST_UNARY_UNARY: |
| grpc.unary_unary_rpc_method_handler(_test_unary_unary), |
| _TEST_SET_COMPRESSION: |
| grpc.stream_stream_rpc_method_handler(_test_set_compression), |
| _TEST_DISABLE_COMPRESSION_UNARY: |
| grpc.unary_unary_rpc_method_handler(_test_disable_compression_unary), |
| _TEST_DISABLE_COMPRESSION_STREAM: |
| grpc.stream_stream_rpc_method_handler(_test_disable_compression_stream), |
| } |
| |
| |
| class _GenericHandler(grpc.GenericRpcHandler): |
| |
| def service(self, handler_call_details): |
| return _ROUTING_TABLE.get(handler_call_details.method) |
| |
| |
| async def _start_test_server(options=None): |
| server = aio.server(options=options) |
| port = server.add_insecure_port('[::]:0') |
| server.add_generic_rpc_handlers((_GenericHandler(),)) |
| await server.start() |
| return f'localhost:{port}', server |
| |
| |
| class TestCompression(AioTestBase): |
| |
| async def setUp(self): |
| server_options = (_GZIP_DISABLED_CHANNEL_ARGUMENT,) |
| self._address, self._server = await _start_test_server(server_options) |
| self._channel = aio.insecure_channel(self._address) |
| |
| async def tearDown(self): |
| await self._channel.close() |
| await self._server.stop(None) |
| |
| async def test_channel_level_compression_baned_compression(self): |
| # GZIP is disabled, this call should fail |
| async with aio.insecure_channel( |
| self._address, compression=grpc.Compression.Gzip) as channel: |
| multicallable = channel.unary_unary(_TEST_UNARY_UNARY) |
| call = multicallable(_REQUEST) |
| with self.assertRaises(aio.AioRpcError) as exception_context: |
| await call |
| rpc_error = exception_context.exception |
| self.assertEqual(grpc.StatusCode.UNIMPLEMENTED, rpc_error.code()) |
| |
| async def test_channel_level_compression_allowed_compression(self): |
| # Deflate is allowed, this call should succeed |
| async with aio.insecure_channel( |
| self._address, compression=grpc.Compression.Deflate) as channel: |
| multicallable = channel.unary_unary(_TEST_UNARY_UNARY) |
| call = multicallable(_REQUEST) |
| self.assertEqual(grpc.StatusCode.OK, await call.code()) |
| |
| async def test_client_call_level_compression_baned_compression(self): |
| multicallable = self._channel.unary_unary(_TEST_UNARY_UNARY) |
| |
| # GZIP is disabled, this call should fail |
| call = multicallable(_REQUEST, compression=grpc.Compression.Gzip) |
| with self.assertRaises(aio.AioRpcError) as exception_context: |
| await call |
| rpc_error = exception_context.exception |
| self.assertEqual(grpc.StatusCode.UNIMPLEMENTED, rpc_error.code()) |
| |
| async def test_client_call_level_compression_allowed_compression(self): |
| multicallable = self._channel.unary_unary(_TEST_UNARY_UNARY) |
| |
| # Deflate is allowed, this call should succeed |
| call = multicallable(_REQUEST, compression=grpc.Compression.Deflate) |
| self.assertEqual(grpc.StatusCode.OK, await call.code()) |
| |
| async def test_server_call_level_compression(self): |
| multicallable = self._channel.stream_stream(_TEST_SET_COMPRESSION) |
| call = multicallable() |
| await call.write(_REQUEST) |
| await call.done_writing() |
| self.assertEqual(_RESPONSE, await call.read()) |
| self.assertEqual(grpc.StatusCode.OK, await call.code()) |
| |
| async def test_server_disable_compression_unary(self): |
| multicallable = self._channel.unary_unary( |
| _TEST_DISABLE_COMPRESSION_UNARY) |
| call = multicallable(_REQUEST) |
| self.assertEqual(_RESPONSE, await call) |
| self.assertEqual(grpc.StatusCode.OK, await call.code()) |
| |
| async def test_server_disable_compression_stream(self): |
| multicallable = self._channel.stream_stream( |
| _TEST_DISABLE_COMPRESSION_STREAM) |
| call = multicallable() |
| await call.write(_REQUEST) |
| await call.done_writing() |
| self.assertEqual(_RESPONSE, await call.read()) |
| self.assertEqual(_RESPONSE, await call.read()) |
| self.assertEqual(_RESPONSE, await call.read()) |
| self.assertEqual(grpc.StatusCode.OK, await call.code()) |
| |
| async def test_server_default_compression_algorithm(self): |
| server = aio.server(compression=grpc.Compression.Deflate) |
| port = server.add_insecure_port('[::]:0') |
| server.add_generic_rpc_handlers((_GenericHandler(),)) |
| await server.start() |
| |
| async with aio.insecure_channel(f'localhost:{port}') as channel: |
| multicallable = channel.unary_unary(_TEST_UNARY_UNARY) |
| call = multicallable(_REQUEST) |
| self.assertEqual(_RESPONSE, await call) |
| self.assertEqual(grpc.StatusCode.OK, await call.code()) |
| |
| await server.stop(None) |
| |
| |
| if __name__ == '__main__': |
| logging.basicConfig(level=logging.DEBUG) |
| unittest.main(verbosity=2) |