def test_datetimeindex_diff(self):
dti1 = DatetimeIndex(freq="Q-JAN", start=datetime(1997, 12, 31), periods=100)
dti2 = DatetimeIndex(freq="Q-JAN", start=datetime(1997, 12, 31), periods=98)
self.assert_(len(dti1.diff(dti2)) == 2)
def test_datetimeindex_diff(self):
dti1 = DatetimeIndex(freq="Q-JAN", start=datetime(1997, 12, 31), periods=100)
dti2 = DatetimeIndex(freq="Q-JAN", start=datetime(1997, 12, 31), periods=98)
self.assert_(len(dti1.diff(dti2)) == 2)