1# Copyright 2019 The TensorFlow Authors. All Rights Reserved.
2#
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7#     http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14# ==============================================================================
15"""Tests for layer wrappers."""
16
17from __future__ import absolute_import
18from __future__ import division
19from __future__ import print_function
20
21import numpy as np
22
23from tensorflow.python import keras
24from tensorflow.python.platform import test
25
26
27# TODO(b/125513261): Move this back into wrappers_test.py.
28class TimeDistributedLearningPhaseTest(test.TestCase):
29
30  def test_TimeDistributed_learning_phase(self):
31    with self.cached_session():
32      # test layers that need learning_phase to be set
33      np.random.seed(1234)
34      x = keras.layers.Input(shape=(3, 2))
35      y = keras.layers.TimeDistributed(keras.layers.Dropout(.999))(
36          x, training=True)
37      model = keras.models.Model(x, y)
38      y = model.predict(np.random.random((10, 3, 2)))
39      self.assertAllClose(np.mean(y), 0., atol=1e-1, rtol=1e-1)
40
41
42if __name__ == '__main__':
43  test.main()
44