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78 lines
2.1 KiB
Python
78 lines
2.1 KiB
Python
# Copyright 2021-2023 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import contextlib
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import logging
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import os
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from bumble import utils
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from pyee import EventEmitter
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from unittest.mock import MagicMock
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def test_on() -> None:
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emitter = EventEmitter()
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with contextlib.closing(utils.EventWatcher()) as context:
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mock = MagicMock()
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context.on(emitter, 'event', mock)
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emitter.emit('event')
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assert not emitter.listeners('event')
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assert mock.call_count == 1
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def test_on_decorator() -> None:
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emitter = EventEmitter()
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with contextlib.closing(utils.EventWatcher()) as context:
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mock = MagicMock()
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@context.on(emitter, 'event')
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def on_event(*_) -> None:
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mock()
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emitter.emit('event')
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assert not emitter.listeners('event')
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assert mock.call_count == 1
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def test_multiple_handlers() -> None:
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emitter = EventEmitter()
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with contextlib.closing(utils.EventWatcher()) as context:
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mock = MagicMock()
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context.once(emitter, 'a', mock)
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context.once(emitter, 'b', mock)
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emitter.emit('b', 'b')
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assert not emitter.listeners('a')
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assert not emitter.listeners('b')
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mock.assert_called_once_with('b')
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# -----------------------------------------------------------------------------
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def run_tests():
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test_on()
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test_on_decorator()
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test_multiple_handlers()
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# -----------------------------------------------------------------------------
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if __name__ == '__main__':
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logging.basicConfig(level=os.environ.get('BUMBLE_LOGLEVEL', 'INFO').upper())
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run_tests()
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