32bb13dace
Distributed variables needs to behave differently when tracing functions with different SaveOptions. We need to access SaveContext in tf.distribute code instead of the another way around because we may have a handle to the strategy in saving code. PiperOrigin-RevId: 321815477 Change-Id: Ib69f6d42c60e198c0e8e174f76bc9424e21df5b5
88 lines
3.2 KiB
Python
88 lines
3.2 KiB
Python
# Copyright 2020 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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"""Test for SaveContext."""
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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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import threading
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from tensorflow.python.eager import test
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from tensorflow.python.saved_model import save_context
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from tensorflow.python.saved_model import save_options
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class SaveContextTest(test.TestCase):
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def test_multi_thread(self):
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self.assertFalse(save_context.in_save_context())
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with self.assertRaisesRegex(ValueError, 'not in a SaveContext'):
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save_context.get_save_options()
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options = save_options.SaveOptions(save_debug_info=True)
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with save_context.save_context(options):
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self.assertTrue(save_context.in_save_context())
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self.assertTrue(save_context.get_save_options().save_debug_info)
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entered_context_in_thread = threading.Event()
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continue_thread = threading.Event()
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def thread_fn():
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self.assertFalse(save_context.in_save_context())
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with self.assertRaisesRegex(ValueError, 'not in a SaveContext'):
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save_context.get_save_options()
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options = save_options.SaveOptions(save_debug_info=False)
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with save_context.save_context(options):
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self.assertTrue(save_context.in_save_context())
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# save_debug_info has a different value in this thread.
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self.assertFalse(save_context.get_save_options().save_debug_info)
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entered_context_in_thread.set()
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continue_thread.wait()
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self.assertFalse(save_context.in_save_context())
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with self.assertRaisesRegex(ValueError, 'not in a SaveContext'):
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save_context.get_save_options()
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t = threading.Thread(target=thread_fn)
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t.start()
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entered_context_in_thread.wait()
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# Another thread shouldn't affect this thread.
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self.assertTrue(save_context.in_save_context())
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self.assertTrue(save_context.get_save_options().save_debug_info)
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continue_thread.set()
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t.join()
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# Another thread exiting SaveContext shouldn't affect this thread.
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self.assertTrue(save_context.in_save_context())
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self.assertTrue(save_context.get_save_options().save_debug_info)
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self.assertFalse(save_context.in_save_context())
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with self.assertRaisesRegex(ValueError, 'not in a SaveContext'):
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save_context.get_save_options()
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def test_enter_multiple(self):
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options = save_options.SaveOptions()
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with self.assertRaisesRegex(ValueError, 'already in a SaveContext'):
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with save_context.save_context(options):
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with save_context.save_context(options):
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pass
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if __name__ == '__main__':
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test.main()
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