test_categorical.py 文件源码

def test_empty_print(self):
        factor = Categorical([], ["a", "b", "c"])
        expected = ("[], Categories (3, object): [a, b, c]")
        # hack because array_repr changed in numpy > 1.6.x
        actual = repr(factor)
        self.assertEqual(actual, expected)

        self.assertEqual(expected, actual)
        factor = Categorical([], ["a", "b", "c"], ordered=True)
        expected = ("[], Categories (3, object): [a < b < c]")
        actual = repr(factor)
        self.assertEqual(expected, actual)

        factor = Categorical([], [])
        expected = ("[], Categories (0, object): []")
        self.assertEqual(expected, repr(factor))