48 lines
1.6 KiB
Python
48 lines
1.6 KiB
Python
# Copyright 2022 Canonical, Ltd.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import asyncio
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import unittest
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from unittest.mock import AsyncMock
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from subiquitycore.async_helpers import (
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SingleInstanceTask,
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TaskAlreadyRunningError,
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)
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from subiquitycore.tests.parameterized import parameterized
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class TestSingleInstanceTask(unittest.IsolatedAsyncioTestCase):
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@parameterized.expand([(True, 2), (False, 1)])
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async def test_cancellable(self, cancel_restart, expected_call_count):
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async def fn():
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await asyncio.sleep(3)
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raise Exception('timeout')
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mock_fn = AsyncMock(side_effect=fn)
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sit = SingleInstanceTask(mock_fn, cancel_restart=cancel_restart)
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await sit.start()
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await asyncio.sleep(.01)
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try:
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await sit.start()
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except TaskAlreadyRunningError:
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restarted = False
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else:
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restarted = True
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sit.task.cancel()
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self.assertEqual(expected_call_count, mock_fn.call_count)
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self.assertEqual(cancel_restart, restarted)
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