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How to use _call_command method in testcontainers-python

Best Python code snippet using testcontainers-python_python

tests.py

Source:tests.py

...7from ietf.person.models import PersonApiKeyEvent, PersonEvent8from ietf.utils.test_utils import TestCase9class CommandTests(TestCase):10    @staticmethod11    def _call_command(command_name, *args, **options):12        out = StringIO()13        options['stdout'] = out14        call_command(command_name, *args, **options)15        return out.getvalue()16    def _assert_purge_results(self, cmd_output, expected_delete_count, expected_kept_events):17        self.assertNotIn('Dry run requested', cmd_output)18        if expected_delete_count == 0:19            delete_text = 'No events older than'20        else:21            delete_text = 'Deleting {} event'.format(expected_delete_count)22        self.assertIn(delete_text, cmd_output)23        self.assertCountEqual(24            PersonApiKeyEvent.objects.all(),25            expected_kept_events,26            'Wrong events were deleted'27        )28    def _assert_purge_dry_run_results(self, cmd_output, expected_delete_count, expected_kept_events):29        self.assertIn('Dry run requested', cmd_output)30        if expected_delete_count == 0:31            delete_text = 'No events older than'32        else:33            delete_text = 'Would delete {} event'.format(expected_delete_count)34        self.assertIn(delete_text, cmd_output)35        self.assertCountEqual(36            PersonApiKeyEvent.objects.all(),37            expected_kept_events,38            'Events were deleted when dry-run option was used'39        )40    def test_purge_old_personal_api_key_events(self):41        keep_days = 1042        # Remember how many PersonEvents were present so we can verify they're cleaned up properly.43        personevents_before = PersonEvent.objects.count()44        now = datetime.datetime.now()45        # The first of these events will be timestamped a fraction of a second more than keep_days46        # days ago by the time we call the management command, so will just barely chosen for purge.47        old_events = [48            PersonApiKeyEventFactory(time=now - datetime.timedelta(days=n))49            for n in range(keep_days, 2 * keep_days + 1)50        ]51        num_old_events = len(old_events)52        recent_events = [53            PersonApiKeyEventFactory(time=now - datetime.timedelta(days=n))54            for n in range(0, keep_days)55        ]56        # We did not create recent_event timestamped exactly keep_days ago because it would57        # be treated as an old_event by the management command. Create an event a few seconds58        # on the "recent" side of keep_days old to test the threshold.59        recent_events.append(60            PersonApiKeyEventFactory(61                time=now + datetime.timedelta(seconds=3) - datetime.timedelta(days=keep_days)62            )63        )64        num_recent_events = len(recent_events)65        # call with dry run66        output = self._call_command('purge_old_personal_api_key_events', str(keep_days), '--dry-run')67        self._assert_purge_dry_run_results(output, num_old_events, old_events + recent_events)68        # call for real69        output = self._call_command('purge_old_personal_api_key_events', str(keep_days))70        self._assert_purge_results(output, num_old_events, recent_events)71        self.assertEqual(PersonEvent.objects.count(), personevents_before + num_recent_events,72                         'PersonEvents were not cleaned up properly')73        # repeat - there should be nothing left to delete74        output = self._call_command('purge_old_personal_api_key_events', '--dry-run', str(keep_days))75        self._assert_purge_dry_run_results(output, 0, recent_events)76        output = self._call_command('purge_old_personal_api_key_events', str(keep_days))77        self._assert_purge_results(output, 0, recent_events)78        self.assertEqual(PersonEvent.objects.count(), personevents_before + num_recent_events,79                         'PersonEvents were not cleaned up properly')80        # and now delete the remaining events81        output = self._call_command('purge_old_personal_api_key_events', '0')82        self._assert_purge_results(output, num_recent_events, [])83        self.assertEqual(PersonEvent.objects.count(), personevents_before,84                         'PersonEvents were not cleaned up properly')85    def test_purge_old_personal_api_key_events_rejects_invalid_arguments(self):86        """The purge_old_personal_api_key_events command should reject invalid arguments"""87        event = PersonApiKeyEventFactory(time=datetime.datetime.now() - datetime.timedelta(days=30))88        with self.assertRaises(CommandError):89            self._call_command('purge_old_personal_api_key_events')90        with self.assertRaises(CommandError):91            self._call_command('purge_old_personal_api_key_events', '-15')92        with self.assertRaises(CommandError):93            self._call_command('purge_old_personal_api_key_events', '15.3')94        with self.assertRaises(CommandError):95            self._call_command('purge_old_personal_api_key_events', '15', '15')96        with self.assertRaises(CommandError):97            self._call_command('purge_old_personal_api_key_events', 'abc', '15')...

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