41 lines
1.7 KiB
Python
41 lines
1.7 KiB
Python
from django.db import IntegrityError, connections, transaction
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from django.test import TestCase, skipUnlessDBFeature
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from .models import Car, PossessedCar
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class TestTestCase(TestCase):
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@skipUnlessDBFeature('can_defer_constraint_checks')
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@skipUnlessDBFeature('supports_foreign_keys')
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def test_fixture_teardown_checks_constraints(self):
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rollback_atomics = self._rollback_atomics
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self._rollback_atomics = lambda connection: None # noop
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try:
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car = PossessedCar.objects.create(car_id=1, belongs_to_id=1)
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with self.assertRaises(IntegrityError), transaction.atomic():
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self._fixture_teardown()
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car.delete()
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finally:
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self._rollback_atomics = rollback_atomics
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def test_disallowed_database_connection(self):
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message = (
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"Database connections to 'other' are not allowed in this test. "
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"Add 'other' to test_utils.test_testcase.TestTestCase.databases to "
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"ensure proper test isolation and silence this failure."
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)
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with self.assertRaisesMessage(AssertionError, message):
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connections['other'].connect()
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with self.assertRaisesMessage(AssertionError, message):
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connections['other'].temporary_connection()
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def test_disallowed_database_queries(self):
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message = (
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"Database queries to 'other' are not allowed in this test. "
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"Add 'other' to test_utils.test_testcase.TestTestCase.databases to "
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"ensure proper test isolation and silence this failure."
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)
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with self.assertRaisesMessage(AssertionError, message):
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Car.objects.using('other').get()
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