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56 lines
2.3 KiB
Python
56 lines
2.3 KiB
Python
#
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# This file is part of pretix (Community Edition).
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#
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# Copyright (C) 2014-2020 Raphael Michel and contributors
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# Copyright (C) 2020-2021 rami.io GmbH and contributors
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#
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# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
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# Public License as published by the Free Software Foundation in version 3 of the License.
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#
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# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
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# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
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# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
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# this file, see <https://pretix.eu/about/en/license>.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along with this program. If not, see
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# <https://www.gnu.org/licenses/>.
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#
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from django.db import DEFAULT_DB_ALIAS, connections
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from django.test.utils import CaptureQueriesContext
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class _AssertNumQueriesContext(CaptureQueriesContext):
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# Inspired by /django/test/testcases.py
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# but copied over to work without the unit test module
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def __init__(self, num, connection):
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self.num = num
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super(_AssertNumQueriesContext, self).__init__(connection)
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def __exit__(self, exc_type, exc_value, traceback):
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super(_AssertNumQueriesContext, self).__exit__(exc_type, exc_value, traceback)
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if exc_type is not None:
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return
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executed = len(self)
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assert executed == self.num, "%d queries executed, %d expected\nCaptured queries were:\n%s" % (
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executed, self.num,
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'\n'.join(
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query['sql'] for query in self.captured_queries
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)
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)
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def assert_num_queries(num, func=None, *args, **kwargs):
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using = kwargs.pop("using", DEFAULT_DB_ALIAS)
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conn = connections[using]
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context = _AssertNumQueriesContext(num, conn)
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if func is None:
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return context
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with context:
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func(*args, **kwargs)
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