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from django_test_migrations.sql import drop_models_tables
TESTING_DATABASE_NAME = 'test'
def test_drop_models_table_no_tables_detected(mocker):
"""Ensure any ``DROP TABLE`` statement executed when no tables detected."""
testing_connection_mock = mocker.MagicMock()
testing_connection_mock.introspection.django_table_names.return_value = []
connections_mock = mocker.patch('django.db.connections._connections')
connections_mock.test = testing_connection_mock
drop_models_tables(TESTING_DATABASE_NAME)
testing_connection_mock.ops.execute_sql_flush.assert_not_called()
def test_drop_models_table_table_detected(mocker):
"""Ensure ``DROP TABLE`` statements are executed when any table detected."""
testing_connection_mock = mocker.MagicMock()
testing_connection_mock.introspection.django_table_names.return_value = [
'foo_bar',
'foo_baz',
]
connections_mock = mocker.patch('django.db.connections._connections')
connections_mock.test = testing_connection_mock
drop_models_tables(TESTING_DATABASE_NAME)
testing_connection_mock.ops.execute_sql_flush.assert_called_once()
def test_drop_models_table_on_mysql(mocker):
"""Ensure queries disabling/enabling `FOREIGN_KEY_CHECKS` are executed."""
testing_connection_mock = mocker.MagicMock(vendor='mysql')
testing_connection_mock.introspection.django_table_names.return_value = [
'foo_bar',
'foo_baz',
]
connections_mock = mocker.patch('django.db.connections._connections')
connections_mock.test = testing_connection_mock
drop_models_tables(TESTING_DATABASE_NAME)
testing_connection_mock.ops.execute_sql_flush.assert_called_once_with([
'SET FOREIGN_KEY_CHECKS = 0;',
mocker.ANY,
mocker.ANY,
'SET FOREIGN_KEY_CHECKS = 1;',
])
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