54 lines
1.9 KiB
Python
54 lines
1.9 KiB
Python
# Copyright 2015 The TensorFlow Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ==============================================================================
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"""Tests for losses util."""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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from tensorflow.python.framework import constant_op
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from tensorflow.python.framework import ops
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from tensorflow.python.framework import test_util
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from tensorflow.python.ops.losses import util
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from tensorflow.python.platform import test
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class LossesUtilTest(test.TestCase):
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@test_util.run_deprecated_v1
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def testGetRegularizationLoss(self):
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# Empty regularization collection should evaluate to 0.0.
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with self.cached_session():
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self.assertEqual(0.0, util.get_regularization_loss().eval())
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# Loss should sum.
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ops.add_to_collection(
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ops.GraphKeys.REGULARIZATION_LOSSES, constant_op.constant(2.0))
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ops.add_to_collection(
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ops.GraphKeys.REGULARIZATION_LOSSES, constant_op.constant(3.0))
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with self.cached_session():
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self.assertEqual(5.0, util.get_regularization_loss().eval())
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# Check scope capture mechanism.
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with ops.name_scope('scope1'):
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ops.add_to_collection(
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ops.GraphKeys.REGULARIZATION_LOSSES, constant_op.constant(-1.0))
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with self.cached_session():
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self.assertEqual(-1.0, util.get_regularization_loss('scope1').eval())
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if __name__ == '__main__':
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test.main()
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