def testDatatimeArith(self):
t1 = array([np.datetime64('2005-02-02'), np.datetime64('2005-02-03')])
t2 = t1 + np.timedelta64(1)
self.assertIsInstance(t2.op, TensorAdd)
t3 = t1 - np.datetime64('2005-02-02')
self.assertIsInstance(t3.op, TensorSubtract)
self.assertEqual(t3.dtype,
(np.array(['2005-02-02', '2005-02-03'], dtype=np.datetime64) -
np.datetime64('2005-02-02')).dtype)
t1 = array([np.datetime64('2005-02-02'), np.datetime64('2005-02-03')])
subtract(t1, np.datetime64('2005-02-02'), out=empty(t1.shape, dtype=t3.dtype))
t1 = array([np.datetime64('2005-02-02'), np.datetime64('2005-02-03')])
add(t1, np.timedelta64(1, 'D'), out=t1)
def test_datatime_arith():
t1 = array([np.datetime64('2005-02-02'), np.datetime64('2005-02-03')])
t2 = t1 + np.timedelta64(1)
assert isinstance(t2.op, TensorAdd)
t3 = t1 - np.datetime64('2005-02-02')
assert isinstance(t3.op, TensorSubtract)
assert t3.dtype == (
np.array(['2005-02-02', '2005-02-03'], dtype=np.datetime64) -
np.datetime64('2005-02-02')).dtype
t1 = array([np.datetime64('2005-02-02'), np.datetime64('2005-02-03')])
subtract(t1,
np.datetime64('2005-02-02'),
out=empty(t1.shape, dtype=t3.dtype))
t1 = array([np.datetime64('2005-02-02'), np.datetime64('2005-02-03')])
add(t1, np.timedelta64(1, 'D'), out=t1)