dbe7b589c5
If this breaks code you maintain, instead switch to using tf.raw_ops to directly control what graph ops are emitted from the TF high level APIs instead of assuming TF will never delete stale branches of forward compatible code. PiperOrigin-RevId: 309756416 Change-Id: I47f874423401d974c26e7edc65e8f7a39e8cae0e
127 lines
4.9 KiB
Python
127 lines
4.9 KiB
Python
# Copyright 2018 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 forward and backwards compatibility utilities."""
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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 datetime
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import os
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from tensorflow.python.compat import compat
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from tensorflow.python.platform import test
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class CompatTest(test.TestCase):
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def _compatibility_date(self):
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date = compat._FORWARD_COMPATIBILITY_HORIZON # pylint: disable=protected-access
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return (date.year, date.month, date.day)
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def _n_days_after(self, n):
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date = compat._FORWARD_COMPATIBILITY_HORIZON + datetime.timedelta(days=n) # pylint: disable=protected-access
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return (date.year, date.month, date.day)
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def test_basic(self):
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compatibility_date = self._compatibility_date()
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one_day_before = self._n_days_after(-1)
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self.assertTrue(compat.forward_compatible(*one_day_before))
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self.assertFalse(compat.forward_compatible(*compatibility_date))
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def test_past(self):
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with compat.forward_compatibility_horizon(2018, 9, 18):
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self.assertTrue(compat.forward_compatible(2020, 4, 4))
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def test_decorator(self):
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compatibility_date = self._compatibility_date()
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one_day_after = self._n_days_after(1)
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with compat.forward_compatibility_horizon(*one_day_after):
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self.assertTrue(compat.forward_compatible(*compatibility_date))
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self.assertFalse(compat.forward_compatible(*one_day_after))
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# After exiting context manager, value should be reset.
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self.assertFalse(compat.forward_compatible(*compatibility_date))
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def test_decorator_with_failure(self):
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compatibility_date = self._compatibility_date()
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one_day_after = self._n_days_after(1)
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class DummyError(Exception):
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pass
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try:
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with compat.forward_compatibility_horizon(*one_day_after):
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raise DummyError()
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except DummyError:
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pass # silence DummyError
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# After exiting context manager, value should be reset.
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self.assertFalse(compat.forward_compatible(*compatibility_date))
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def test_environment_override(self):
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var_name = 'TF_FORWARD_COMPATIBILITY_DELTA_DAYS'
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def remove_os_environment_var():
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try:
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del os.environ[var_name]
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except KeyError:
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pass
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self.addCleanup(remove_os_environment_var)
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compatibility_date = self._compatibility_date()
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one_day_before = self._n_days_after(-1)
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one_day_after = self._n_days_after(1)
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ten_days_after = self._n_days_after(10)
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nine_days_after = self._n_days_after(9)
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self.assertTrue(compat.forward_compatible(*one_day_before))
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self.assertFalse(compat.forward_compatible(*compatibility_date))
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self.assertFalse(compat.forward_compatible(*one_day_after))
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self.assertFalse(compat.forward_compatible(*nine_days_after))
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self.assertFalse(compat.forward_compatible(*ten_days_after))
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os.environ[var_name] = '10'
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compat._update_forward_compatibility_date_number()
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self.assertTrue(compat.forward_compatible(*one_day_before))
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self.assertTrue(compat.forward_compatible(*compatibility_date))
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self.assertTrue(compat.forward_compatible(*one_day_after))
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self.assertTrue(compat.forward_compatible(*nine_days_after))
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self.assertFalse(compat.forward_compatible(*ten_days_after))
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del os.environ[var_name]
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compat._update_forward_compatibility_date_number()
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self.assertTrue(compat.forward_compatible(*one_day_before))
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self.assertFalse(compat.forward_compatible(*compatibility_date))
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self.assertFalse(compat.forward_compatible(*one_day_after))
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self.assertFalse(compat.forward_compatible(*nine_days_after))
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self.assertFalse(compat.forward_compatible(*ten_days_after))
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# Now test interaction between environment variable and context func.
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os.environ[var_name] = '10'
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compat._update_forward_compatibility_date_number()
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self.assertTrue(compat.forward_compatible(*one_day_after))
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with compat.forward_compatibility_horizon(*one_day_after):
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self.assertTrue(compat.forward_compatible(*one_day_before))
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self.assertTrue(compat.forward_compatible(*compatibility_date))
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self.assertFalse(compat.forward_compatible(*one_day_after))
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self.assertFalse(compat.forward_compatible(*nine_days_after))
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self.assertFalse(compat.forward_compatible(*ten_days_after))
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self.assertTrue(compat.forward_compatible(*one_day_after))
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if __name__ == '__main__':
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test.main()
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