test_async.py 文件源码

def test_set_parameters_while_async(self):
        cur = self.conn.cursor()

        cur.execute("select 'c'")
        self.assertTrue(self.conn.isexecuting())

        # getting transaction status works
        self.assertEqual(self.conn.get_transaction_status(),
                          extensions.TRANSACTION_STATUS_ACTIVE)
        self.assertTrue(self.conn.isexecuting())

        # setting connection encoding should fail
        self.assertRaises(psycopg2.ProgrammingError,
                          self.conn.set_client_encoding, "LATIN1")

        # same for transaction isolation
        self.assertRaises(psycopg2.ProgrammingError,
                          self.conn.set_isolation_level, 1)