def test_transpose_method():
dat = np.arange(24).reshape(2, 3, 4)
for axes in permutations(range(3)):
# passing tuple of integers
x = Tensor(dat)
f = x.transpose(axes)
f.backward(dat.transpose(axes))
assert_allclose(f.data, dat.transpose(axes))
assert_allclose(x.grad, dat)
# passing integers directly
x = Tensor(dat)
f = x.transpose(*axes)
f.backward(dat.transpose(axes))
assert_allclose(f.data, dat.transpose(axes), err_msg="{}".format(axes))
assert_allclose(x.grad, dat, err_msg="{}".format(axes))
# passing integers directly
x = Tensor(dat)
f = x.transpose()
f.backward(dat.transpose())
assert_allclose(f.data, dat.transpose())
assert_allclose(x.grad, dat)
# check that constant=True works
x = Tensor(dat)
f = x.transpose(constant=True)
assert f.constant and not x.constant
f = x.transpose(1, 0, 2, constant=True)
assert f.constant and not x.constant
def test_transpose():
dat = np.arange(24).reshape(2, 3, 4)
x = Tensor(dat)
f = x.transpose(axes=(2, 1, 0))
f.backward(dat.transpose((2, 1, 0)))
assert np.allclose(f.data, dat.transpose((2, 1, 0)))
assert np.allclose(x.grad, dat)