def test_manual_folding_third_axis(self):
b, d, w = 10, 12, 14
x = np.random.standard_normal(size=(b, d, w))
space = cpu.space.CPUSpace.infer(x, ('b', 'd', 'w'))
actual, space = space.transform(x, ('b', 'd', 'w2', 'w'))
space = space.with_extents(
w2=2,
w=w//2)
actual = space.unfold(actual)
expected = np.concatenate([x[:, :, np.newaxis, :w//2], x[:, :, np.newaxis, w//2:]], axis=2)
def test_manual_folding_first_axis(self):
b, d, w = 10, 12, 14
x = np.random.standard_normal(size=(b, d, w))
space = cpu.space.CPUSpace.infer(x, ('b', 'd', 'w'))
actual, space = space.transform(x, ('b2', 'b', 'd', 'w'))
space = space.with_extents(
b2=2,
b=b//2)
actual = space.unfold(actual)
expected = np.concatenate([x[np.newaxis, :b//2], x[np.newaxis, b//2:]], axis=0)
self.assertEqual(actual.shape, expected.shape)
self.assertTrue(np.all(actual == expected))