| # |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to You 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. |
| # |
| |
| # pytype: skip-file |
| |
| from __future__ import absolute_import |
| |
| import sys |
| import unittest |
| |
| import grpc |
| |
| from apache_beam.portability.api import beam_runner_api_pb2 |
| from apache_beam.portability.api import beam_runner_api_pb2_grpc |
| from apache_beam.portability.api.beam_interactive_api_pb2 import TestStreamFileHeader |
| from apache_beam.portability.api.beam_interactive_api_pb2 import TestStreamFileRecord |
| from apache_beam.portability.api.beam_runner_api_pb2 import TestStreamPayload |
| from apache_beam.testing.test_stream_service import TestStreamServiceController |
| |
| # TODO(BEAM-8288): clean up the work-around of nose tests using Python2 without |
| # unittest.mock module. |
| try: |
| from unittest.mock import patch |
| except ImportError: |
| from mock import patch # type: ignore[misc] |
| |
| # Nose automatically detects tests if they match a regex. Here, it mistakens |
| # these protos as tests. For more info see the Nose docs at: |
| # https://nose.readthedocs.io/en/latest/writing_tests.html |
| TestStreamPayload.__test__ = False # type: ignore[attr-defined] |
| TestStreamFileHeader.__test__ = False # type: ignore[attr-defined] |
| TestStreamFileRecord.__test__ = False # type: ignore[attr-defined] |
| |
| |
| class EventsReader: |
| def __init__(self, expected_key): |
| self._expected_key = expected_key |
| |
| def read_multiple(self, keys): |
| if keys != self._expected_key: |
| raise ValueError( |
| 'Expected key ({}) is not argument({})'.format( |
| self._expected_key, keys)) |
| |
| for i in range(10): |
| e = TestStreamPayload.Event() |
| e.element_event.elements.append( |
| TestStreamPayload.TimestampedElement(timestamp=i)) |
| yield e |
| |
| |
| EXPECTED_KEY = 'key' |
| EXPECTED_KEYS = [EXPECTED_KEY] |
| |
| |
| class TestStreamServiceTest(unittest.TestCase): |
| def setUp(self): |
| self.controller = TestStreamServiceController( |
| EventsReader(expected_key=[('full', EXPECTED_KEY)])) |
| self.controller.start() |
| |
| channel = grpc.insecure_channel(self.controller.endpoint) |
| self.stub = beam_runner_api_pb2_grpc.TestStreamServiceStub(channel) |
| |
| def tearDown(self): |
| self.controller.stop() |
| |
| def test_normal_run(self): |
| r = self.stub.Events( |
| beam_runner_api_pb2.EventsRequest(output_ids=EXPECTED_KEYS)) |
| events = [e for e in r] |
| expected_events = [ |
| e for e in EventsReader( |
| expected_key=[EXPECTED_KEYS]).read_multiple([EXPECTED_KEYS]) |
| ] |
| |
| self.assertEqual(events, expected_events) |
| |
| def test_multiple_sessions(self): |
| resp_a = self.stub.Events( |
| beam_runner_api_pb2.EventsRequest(output_ids=EXPECTED_KEYS)) |
| resp_b = self.stub.Events( |
| beam_runner_api_pb2.EventsRequest(output_ids=EXPECTED_KEYS)) |
| |
| events_a = [] |
| events_b = [] |
| |
| done = False |
| while not done: |
| a_is_done = False |
| b_is_done = False |
| try: |
| events_a.append(next(resp_a)) |
| except StopIteration: |
| a_is_done = True |
| |
| try: |
| events_b.append(next(resp_b)) |
| except StopIteration: |
| b_is_done = True |
| |
| done = a_is_done and b_is_done |
| |
| expected_events = [ |
| e for e in EventsReader( |
| expected_key=[EXPECTED_KEYS]).read_multiple([EXPECTED_KEYS]) |
| ] |
| |
| self.assertEqual(events_a, expected_events) |
| self.assertEqual(events_b, expected_events) |
| |
| |
| @unittest.skipIf( |
| sys.version_info < (3, 6), 'The tests require at least Python 3.6 to work.') |
| class TestStreamServiceStartStopTest(unittest.TestCase): |
| |
| # Weak internal use needs to be explicitly imported. |
| from grpc import _server |
| |
| def setUp(self): |
| self.controller = TestStreamServiceController( |
| EventsReader(expected_key=[('full', EXPECTED_KEY)])) |
| self.assertFalse(self.controller._server_started) |
| self.assertFalse(self.controller._server_stopped) |
| |
| def tearDown(self): |
| self.controller.stop() |
| |
| def test_start_when_never_started(self): |
| with patch.object(self._server._Server, |
| 'start', |
| wraps=self.controller._server.start) as mock_start: |
| self.controller.start() |
| mock_start.assert_called_once() |
| self.assertTrue(self.controller._server_started) |
| self.assertFalse(self.controller._server_stopped) |
| |
| def test_start_noop_when_already_started(self): |
| with patch.object(self._server._Server, |
| 'start', |
| wraps=self.controller._server.start) as mock_start: |
| self.controller.start() |
| mock_start.assert_called_once() |
| self.controller.start() |
| mock_start.assert_called_once() |
| |
| def test_start_noop_when_already_stopped(self): |
| with patch.object(self._server._Server, |
| 'start', |
| wraps=self.controller._server.start) as mock_start: |
| self.controller.start() |
| self.controller.stop() |
| mock_start.assert_called_once() |
| self.controller.start() |
| mock_start.assert_called_once() |
| |
| def test_stop_noop_when_not_started(self): |
| with patch.object(self._server._Server, |
| 'stop', |
| wraps=self.controller._server.stop) as mock_stop: |
| self.controller.stop() |
| mock_stop.assert_not_called() |
| |
| def test_stop_when_already_started(self): |
| with patch.object(self._server._Server, |
| 'stop', |
| wraps=self.controller._server.stop) as mock_stop: |
| self.controller.start() |
| mock_stop.assert_not_called() |
| self.controller.stop() |
| mock_stop.assert_called_once() |
| self.assertFalse(self.controller._server_started) |
| self.assertTrue(self.controller._server_stopped) |
| |
| def test_stop_noop_when_already_stopped(self): |
| with patch.object(self._server._Server, |
| 'stop', |
| wraps=self.controller._server.stop) as mock_stop: |
| self.controller.start() |
| self.controller.stop() |
| mock_stop.assert_called_once() |
| self.controller.stop() |
| mock_stop.assert_called_once() |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |