137 lines
5 KiB
Python
137 lines
5 KiB
Python
import os
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import pathlib
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import unittest
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from asyncio.runners import _cancel_all_tasks # type: ignore
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from unittest.case import _Outcome
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import asyncio
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from database.queries import obtain_connection, setup_database
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class AsyncioTestCase(unittest.TestCase):
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# Implementation inspired by discussion:
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# https://bugs.python.org/issue32972
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maxDiff = None
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async def asyncSetUp(self): # pylint: disable=C0103
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pass
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async def asyncTearDown(self): # pylint: disable=C0103
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pass
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def run(self, result=None): # pylint: disable=R0915
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orig_result = result
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if result is None:
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result = self.defaultTestResult()
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startTestRun = getattr(result, 'startTestRun', None) # pylint: disable=C0103
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if startTestRun is not None:
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startTestRun()
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result.startTest(self)
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testMethod = getattr(self, self._testMethodName) # pylint: disable=C0103
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if (getattr(self.__class__, "__unittest_skip__", False) or
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getattr(testMethod, "__unittest_skip__", False)):
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# If the class or method was skipped.
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try:
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skip_why = (getattr(self.__class__, '__unittest_skip_why__', '')
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or getattr(testMethod, '__unittest_skip_why__', ''))
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self._addSkip(result, self, skip_why)
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finally:
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result.stopTest(self)
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return
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expecting_failure_method = getattr(testMethod,
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"__unittest_expecting_failure__", False)
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expecting_failure_class = getattr(self,
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"__unittest_expecting_failure__", False)
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expecting_failure = expecting_failure_class or expecting_failure_method
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outcome = _Outcome(result)
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self.loop = asyncio.new_event_loop() # pylint: disable=W0201
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asyncio.set_event_loop(self.loop)
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self.loop.set_debug(True)
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try:
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self._outcome = outcome
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with outcome.testPartExecutor(self):
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self.setUp()
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self.loop.run_until_complete(self.asyncSetUp())
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if outcome.success:
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outcome.expecting_failure = expecting_failure
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with outcome.testPartExecutor(self, isTest=True):
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maybe_coroutine = testMethod()
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if asyncio.iscoroutine(maybe_coroutine):
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self.loop.run_until_complete(maybe_coroutine)
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outcome.expecting_failure = False
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with outcome.testPartExecutor(self):
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self.loop.run_until_complete(self.asyncTearDown())
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self.tearDown()
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self.doAsyncCleanups()
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try:
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_cancel_all_tasks(self.loop)
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self.loop.run_until_complete(self.loop.shutdown_asyncgens())
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finally:
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asyncio.set_event_loop(None)
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self.loop.close()
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for test, reason in outcome.skipped:
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self._addSkip(result, test, reason)
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self._feedErrorsToResult(result, outcome.errors)
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if outcome.success:
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if expecting_failure:
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if outcome.expectedFailure:
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self._addExpectedFailure(result, outcome.expectedFailure)
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else:
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self._addUnexpectedSuccess(result)
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else:
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result.addSuccess(self)
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return result
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finally:
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result.stopTest(self)
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if orig_result is None:
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stopTestRun = getattr(result, 'stopTestRun', None) # pylint: disable=C0103
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if stopTestRun is not None:
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stopTestRun() # pylint: disable=E1102
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# explicitly break reference cycles:
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# outcome.errors -> frame -> outcome -> outcome.errors
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# outcome.expectedFailure -> frame -> outcome -> outcome.expectedFailure
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outcome.errors.clear()
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outcome.expectedFailure = None
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# clear the outcome, no more needed
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self._outcome = None
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def doAsyncCleanups(self): # pylint: disable=C0103
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outcome = self._outcome or _Outcome()
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while self._cleanups:
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function, args, kwargs = self._cleanups.pop()
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with outcome.testPartExecutor(self):
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maybe_coroutine = function(*args, **kwargs)
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if asyncio.iscoroutine(maybe_coroutine):
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self.loop.run_until_complete(maybe_coroutine)
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class DatabaseTestCase(unittest.TestCase):
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db_file = 'test.db'
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def __init__(self, methodName='DatabaseTest'):
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super().__init__(methodName)
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if pathlib.Path(self.db_file).exists():
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os.remove(self.db_file)
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def setUp(self) -> None:
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super().setUp()
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setup_database(self.db_file)
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self.conn = obtain_connection(self.db_file)
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self.addCleanup(self.conn.close)
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self.addCleanup(os.remove, self.db_file)
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def tearDown(self) -> None:
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self.conn.close()
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