| # Copyright 2015 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, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # ============================================================================== |
| """Tests for losses util.""" |
| |
| from __future__ import absolute_import |
| from __future__ import division |
| from __future__ import print_function |
| |
| from tensorflow.python.framework import constant_op |
| from tensorflow.python.framework import ops |
| from tensorflow.python.ops.losses import util |
| from tensorflow.python.platform import test |
| |
| |
| class LossesUtilTest(test.TestCase): |
| |
| def testGetRegularizationLoss(self): |
| # Empty regularization collection should evaluate to 0.0. |
| with self.cached_session(): |
| self.assertEqual(0.0, util.get_regularization_loss().eval()) |
| |
| # Loss should sum. |
| ops.add_to_collection( |
| ops.GraphKeys.REGULARIZATION_LOSSES, constant_op.constant(2.0)) |
| ops.add_to_collection( |
| ops.GraphKeys.REGULARIZATION_LOSSES, constant_op.constant(3.0)) |
| with self.cached_session(): |
| self.assertEqual(5.0, util.get_regularization_loss().eval()) |
| |
| # Check scope capture mechanism. |
| with ops.name_scope('scope1'): |
| ops.add_to_collection( |
| ops.GraphKeys.REGULARIZATION_LOSSES, constant_op.constant(-1.0)) |
| with self.cached_session(): |
| self.assertEqual(-1.0, util.get_regularization_loss('scope1').eval()) |
| |
| |
| if __name__ == '__main__': |
| test.main() |