Method test_diff_dt64

pandas/tests/series/methods/test_diff.py:56–66

(self)

        tm.assert_series_equal(result, expected)

    def test_diff_dt64(self):
        # datetime diff (GH#3100)
        ser = Series(date_range("20130102", periods=5))
        result = ser.diff()
        expected = ser - ser.shift(1)
        tm.assert_series_equal(result, expected)

        # timedelta diff
        result = result - result.shift(1)  # previous result
        expected = expected.diff()  # previously expected
        tm.assert_series_equal(result, expected)

    def test_diff_dt64tz(self):
        # with tz