def test_datetime_sub():
    assert (g - h).dshape == dshape('timedelta')
    assert (g - i).dshape == dshape('?timedelta')
    assert (i - j).dshape == dshape('?timedelta')
    assert (g - k).dshape == dshape('datetime')
    assert (g - l).dshape == dshape('?datetime')
    assert (i - k).dshape == dshape('?datetime')
    assert (i - l).dshape == dshape('?datetime')
dataset/ETHPy150Open blaze/blaze/blaze/expr/tests/test_arithmetic.py/test_datetime_sub/original