def test_get_variables_filter(self, _query):
new_engine = MysqlEngine(instance=self.ins1)
new_engine.get_variables(variables=['binlog_format'])
_query.assert_called()
def test_get_variables_not_filter(self, _query):
new_engine = MysqlEngine(instance=self.ins1)
new_engine.get_variables()
_query.assert_called_once()