test_timedeltas.py 文件源码

def test_constructor_coverage(self):
        rng = timedelta_range('1 days', periods=10.5)
        exp = timedelta_range('1 days', periods=10)
        self.assertTrue(rng.equals(exp))

        self.assertRaises(ValueError, TimedeltaIndex, start='1 days',
                          periods='foo', freq='D')

        self.assertRaises(ValueError, TimedeltaIndex, start='1 days',
                          end='10 days')

        self.assertRaises(ValueError, TimedeltaIndex, '1 days')

        # generator expression
        gen = (timedelta(i) for i in range(10))
        result = TimedeltaIndex(gen)
        expected = TimedeltaIndex([timedelta(i) for i in range(10)])
        self.assertTrue(result.equals(expected))

        # NumPy string array
        strings = np.array(['1 days', '2 days', '3 days'])
        result = TimedeltaIndex(strings)
        expected = to_timedelta([1, 2, 3], unit='d')
        self.assertTrue(result.equals(expected))

        from_ints = TimedeltaIndex(expected.asi8)
        self.assertTrue(from_ints.equals(expected))

        # non-conforming freq
        self.assertRaises(ValueError, TimedeltaIndex,
                          ['1 days', '2 days', '4 days'], freq='D')

        self.assertRaises(ValueError, TimedeltaIndex, periods=10, freq='D')