test_csv.py 文件源码

def test_delimiter(self):
        class mydialect(csv.Dialect):
            delimiter = ";"
            escapechar = '\\'
            doublequote = False
            skipinitialspace = True
            lineterminator = '\r\n'
            quoting = csv.QUOTE_NONE
        d = mydialect()
        self.assertEqual(d.delimiter, ";")

        mydialect.delimiter = ":::"
        with self.assertRaises(csv.Error) as cm:
            mydialect()
        self.assertEqual(str(cm.exception),
                         '"delimiter" must be a 1-character string')

        mydialect.delimiter = ""
        with self.assertRaises(csv.Error) as cm:
            mydialect()
        self.assertEqual(str(cm.exception),
                         '"delimiter" must be a 1-character string')

        mydialect.delimiter = u","
        with self.assertRaises(csv.Error) as cm:
            mydialect()
        self.assertEqual(str(cm.exception),
                         '"delimiter" must be string, not unicode')

        mydialect.delimiter = 4
        with self.assertRaises(csv.Error) as cm:
            mydialect()
        self.assertEqual(str(cm.exception),
                         '"delimiter" must be string, not int')