wehub-resource-sync
102 lines
3.0 KiB
Python
102 lines
3.0 KiB
Python
# Copyright 2019 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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"""Unit tests for object_identity."""
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from tensorflow.python.platform import test
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from tensorflow.python.util import nest
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from tensorflow.python.util import object_identity
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class ObjectIdentityWrapperTest(test.TestCase):
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def testWrapperNotEqualToWrapped(self):
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class SettableHash(object):
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def __init__(self):
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self.hash_value = 8675309
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def __hash__(self):
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return self.hash_value
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o = SettableHash()
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wrap1 = object_identity._ObjectIdentityWrapper(o)
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wrap2 = object_identity._ObjectIdentityWrapper(o)
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self.assertEqual(wrap1, wrap1)
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self.assertEqual(wrap1, wrap2)
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self.assertEqual(o, wrap1.unwrapped)
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self.assertEqual(o, wrap2.unwrapped)
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with self.assertRaises(TypeError):
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bool(o == wrap1)
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with self.assertRaises(TypeError):
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bool(wrap1 != o)
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self.assertNotIn(o, set([wrap1]))
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o.hash_value = id(o)
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# Since there is now a hash collision we raise an exception
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with self.assertRaises(TypeError):
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bool(o in set([wrap1]))
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def testNestFlatten(self):
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a = object_identity._ObjectIdentityWrapper('a')
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b = object_identity._ObjectIdentityWrapper('b')
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c = object_identity._ObjectIdentityWrapper('c')
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flat = nest.flatten([[[(a, b)]], c])
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self.assertEqual(flat, [a, b, c])
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def testNestMapStructure(self):
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k = object_identity._ObjectIdentityWrapper('k')
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v1 = object_identity._ObjectIdentityWrapper('v1')
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v2 = object_identity._ObjectIdentityWrapper('v2')
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struct = nest.map_structure(lambda a, b: (a, b), {k: v1}, {k: v2})
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self.assertEqual(struct, {k: (v1, v2)})
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class ObjectIdentitySetTest(test.TestCase):
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def testDifference(self):
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class Element(object):
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pass
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a = Element()
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b = Element()
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c = Element()
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set1 = object_identity.ObjectIdentitySet([a, b])
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set2 = object_identity.ObjectIdentitySet([b, c])
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diff_set = set1.difference(set2)
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self.assertIn(a, diff_set)
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self.assertNotIn(b, diff_set)
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self.assertNotIn(c, diff_set)
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def testDiscard(self):
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a = object()
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b = object()
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set1 = object_identity.ObjectIdentitySet([a, b])
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set1.discard(a)
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self.assertIn(b, set1)
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self.assertNotIn(a, set1)
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def testClear(self):
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a = object()
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b = object()
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set1 = object_identity.ObjectIdentitySet([a, b])
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set1.clear()
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self.assertLen(set1, 0)
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if __name__ == '__main__':
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test.main()
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