def test_pad_to_multiple_1d(self):
tensor = tf.range(3) + 1
self.assertAllEqual([1, 2, 3],
tensor_utils.pad_to_multiple(tensor,
factor=3,
axis=0))
self.assertAllEqual([1, 2, 3, 0, 0],
tensor_utils.pad_to_multiple(tensor,
factor=5,
axis=0))
self.assertAllEqual([1, 2, 3, 0, 0, 0, 0],
tensor_utils.pad_to_multiple(tensor,
factor=7,
axis=0))
self.assertAllEqual([1, 2, 3, 0],
tensor_utils.pad_to_multiple(tensor,
factor=2,
axis=0))
self.assertAllEqual([1, 2, 3],
tensor_utils.pad_to_multiple(tensor,
factor=1,
axis=0))
def test_pad_to_multiple_static_shape(self):
# We use `placeholder_with_default` to simulate the TF v1 situation where
# a static `batch_size` is unknown.
tensor = tf.compat.v1.placeholder_with_default(np.ones(shape=[2, 5],
dtype=np.int32),
shape=[None, 5])
result = tensor_utils.pad_to_multiple(tensor, factor=3, axis=-1)
static_batch_size = tensor.shape.as_list()[0]
self.assertAllEqual([static_batch_size, 6], result.shape.as_list())
def test_pad_to_multiple_padding_mode(self):
tensor = tf.range(3) + 1
self.assertAllEqual([1, 2, 3, 2, 1],
tensor_utils.pad_to_multiple(tensor,
factor=5,
axis=0,
mode='REFLECT'))
self.assertAllEqual([1, 2, 3, 3, 2],
tensor_utils.pad_to_multiple(tensor,
factor=5,
axis=0,
mode='SYMMETRIC'))
self.assertAllEqual([1, 2, 3, -1, -1],
tensor_utils.pad_to_multiple(tensor,
factor=5,
axis=0,
constant_values=-1))
def test_pad_to_multiple_3d(self):
tensor = tf.ones([2, 3, 5], dtype=tf.float32)
self.assertAllEqual(
[
[
[1, 1, 1, 1, 1], #
[1, 1, 1, 1, 1], #
[1, 1, 1, 1, 1], #
], #
[
[1, 1, 1, 1, 1], #
[1, 1, 1, 1, 1], #
[1, 1, 1, 1, 1], #
], #
[
[0, 0, 0, 0, 0], #
[0, 0, 0, 0, 0], #
[0, 0, 0, 0, 0], #
]
],
tensor_utils.pad_to_multiple(tensor, factor=3, axis=0))
self.assertAllEqual(
tensor, tensor_utils.pad_to_multiple(tensor, factor=3, axis=-2))
self.assertAllEqual(
[
[
[1, 1, 1, 1, 1, 0], #
[1, 1, 1, 1, 1, 0], #
[1, 1, 1, 1, 1, 0], #
], #
[
[1, 1, 1, 1, 1, 0], #
[1, 1, 1, 1, 1, 0], #
[1, 1, 1, 1, 1, 0], #
]
],
tensor_utils.pad_to_multiple(tensor, factor=3, axis=-1))