official/projects/pointpillars/modeling/layers_test.py
# Copyright 2024 The TensorFlow Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
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"""Tests for backbones."""
from absl.testing import parameterized
import tensorflow as tf, tf_keras
from official.projects.pointpillars.modeling import layers
class ConvBlockTest(parameterized.TestCase, tf.test.TestCase):
@parameterized.parameters(
([1, 8, 8, 3], 4, 1, False),
([1, 8, 8, 3], 4, 2, False),
([1, 8, 8, 3], 2, 1, True),
([1, 8, 8, 3], 2, 2, True),
)
def test_creation(self, input_shape, filters, strides,
use_transpose_conv):
kernel_size = 3
n, h, w, _ = input_shape
inputs = tf_keras.Input(shape=input_shape[1:], batch_size=n)
block = layers.ConvBlock(filters, kernel_size, strides, use_transpose_conv)
outputs = block(inputs)
if not use_transpose_conv:
if strides == 1:
self.assertAllEqual([n, h, w, filters], outputs.shape.as_list())
elif strides == 2:
self.assertAllEqual([n, h/2, w/2, filters], outputs.shape.as_list())
else:
if strides == 1:
self.assertAllEqual([n, h, w, filters], outputs.shape.as_list())
elif strides == 2:
self.assertAllEqual([n, h*2, w*2, filters], outputs.shape.as_list())
def test_serialization(self):
kwargs = dict(
filters=3,
kernel_size=3,
strides=1,
use_transpose_conv=False,
kernel_initializer=None,
kernel_regularizer=None,
use_bias=False,
bias_initializer=None,
bias_regularizer=None,
use_sync_bn=True,
norm_momentum=0.99,
norm_epsilon=0.001,
bn_trainable=True,
activation='relu',
)
net = layers.ConvBlock(**kwargs)
expected_config = kwargs
self.assertEqual(net.get_config(), expected_config)
new_net = layers.ConvBlock.from_config(net.get_config())
self.assertAllEqual(net.get_config(), new_net.get_config())
if __name__ == '__main__':
tf.test.main()