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# Protocol Buffers - Google's data interchange format # Copyright 2008 Google Inc. All rights reserved. # https://developers.google.com/protocol-buffers/ # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are # met: # # * Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above # copyright notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # * Neither the name of Google Inc. nor the names of its # contributors may be used to endorse or promote products derived from # this software without specific prior written permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. """Tests for google.protobuf.message_factory.""" __author__ = 'matthewtoia@google.com (Matt Toia)' import unittest from google.protobuf import descriptor_pb2 from google.protobuf.internal import api_implementation from google.protobuf.internal import factory_test1_pb2 from google.protobuf.internal import factory_test2_pb2 from google.protobuf.internal import testing_refleaks from google.protobuf import descriptor_database from google.protobuf import descriptor_pool from google.protobuf import message_factory @testing_refleaks.TestCase class MessageFactoryTest(unittest.TestCase): def setUp(self): self.factory_test1_fd = descriptor_pb2.FileDescriptorProto.FromString( factory_test1_pb2.DESCRIPTOR.serialized_pb) self.factory_test2_fd = descriptor_pb2.FileDescriptorProto.FromString( factory_test2_pb2.DESCRIPTOR.serialized_pb) def _ExerciseDynamicClass(self, cls): msg = cls() msg.mandatory = 42 msg.nested_factory_2_enum = 0 msg.nested_factory_2_message.value = 'nested message value' msg.factory_1_message.factory_1_enum = 1 msg.factory_1_message.nested_factory_1_enum = 0 msg.factory_1_message.nested_factory_1_message.value = ( 'nested message value') msg.factory_1_message.scalar_value = 22 msg.factory_1_message.list_value.extend([u'one', u'two', u'three']) msg.factory_1_message.list_value.append(u'four') msg.factory_1_enum = 1 msg.nested_factory_1_enum = 0 msg.nested_factory_1_message.value = 'nested message value' msg.circular_message.mandatory = 1 msg.circular_message.circular_message.mandatory = 2 msg.circular_message.scalar_value = 'one deep' msg.scalar_value = 'zero deep' msg.list_value.extend([u'four', u'three', u'two']) msg.list_value.append(u'one') msg.grouped.add() msg.grouped[0].part_1 = 'hello' msg.grouped[0].part_2 = 'world' msg.grouped.add(part_1='testing', part_2='123') msg.loop.loop.mandatory = 2 msg.loop.loop.loop.loop.mandatory = 4 serialized = msg.SerializeToString() converted = factory_test2_pb2.Factory2Message.FromString(serialized) reserialized = converted.SerializeToString() self.assertEqual(serialized, reserialized) result = cls.FromString(reserialized) self.assertEqual(msg, result) def testGetPrototype(self): db = descriptor_database.DescriptorDatabase() pool = descriptor_pool.DescriptorPool(db) db.Add(self.factory_test1_fd) db.Add(self.factory_test2_fd) factory = message_factory.MessageFactory() cls = factory.GetPrototype(pool.FindMessageTypeByName( 'google.protobuf.python.internal.Factory2Message')) self.assertFalse(cls is factory_test2_pb2.Factory2Message) self._ExerciseDynamicClass(cls) cls2 = factory.GetPrototype(pool.FindMessageTypeByName( 'google.protobuf.python.internal.Factory2Message')) self.assertTrue(cls is cls2) def testCreatePrototypeOverride(self): class MyMessageFactory(message_factory.MessageFactory): def CreatePrototype(self, descriptor): cls = super(MyMessageFactory, self).CreatePrototype(descriptor) cls.additional_field = 'Some value' return cls db = descriptor_database.DescriptorDatabase() pool = descriptor_pool.DescriptorPool(db) db.Add(self.factory_test1_fd) db.Add(self.factory_test2_fd) factory = MyMessageFactory() cls = factory.GetPrototype(pool.FindMessageTypeByName( 'google.protobuf.python.internal.Factory2Message')) self.assertTrue(hasattr(cls, 'additional_field')) def testGetMessages(self): # performed twice because multiple calls with the same input must be allowed for _ in range(2): # GetMessage should work regardless of the order the FileDescriptorProto # are provided. In particular, the function should succeed when the files # are not in the topological order of dependencies. # Assuming factory_test2_fd depends on factory_test1_fd. self.assertIn(self.factory_test1_fd.name, self.factory_test2_fd.dependency) # Get messages should work when a file comes before its dependencies: # factory_test2_fd comes before factory_test1_fd. messages = message_factory.GetMessages([self.factory_test2_fd, self.factory_test1_fd]) self.assertTrue( set(['google.protobuf.python.internal.Factory2Message', 'google.protobuf.python.internal.Factory1Message'], ).issubset(set(messages.keys()))) self._ExerciseDynamicClass( messages['google.protobuf.python.internal.Factory2Message']) factory_msg1 = messages['google.protobuf.python.internal.Factory1Message'] self.assertTrue(set( ['google.protobuf.python.internal.Factory2Message.one_more_field', 'google.protobuf.python.internal.another_field'],).issubset(set( ext.full_name for ext in factory_msg1.DESCRIPTOR.file.pool.FindAllExtensions( factory_msg1.DESCRIPTOR)))) msg1 = messages['google.protobuf.python.internal.Factory1Message']() ext1 = msg1.Extensions._FindExtensionByName( 'google.protobuf.python.internal.Factory2Message.one_more_field') ext2 = msg1.Extensions._FindExtensionByName( 'google.protobuf.python.internal.another_field') self.assertEqual(0, len(msg1.Extensions)) msg1.Extensions[ext1] = 'test1' msg1.Extensions[ext2] = 'test2' self.assertEqual('test1', msg1.Extensions[ext1]) self.assertEqual('test2', msg1.Extensions[ext2]) self.assertEqual(None, msg1.Extensions._FindExtensionByNumber(12321)) self.assertEqual(2, len(msg1.Extensions)) if api_implementation.Type() == 'cpp': self.assertRaises(TypeError, msg1.Extensions._FindExtensionByName, 0) self.assertRaises(TypeError, msg1.Extensions._FindExtensionByNumber, '') else: self.assertEqual(None, msg1.Extensions._FindExtensionByName(0)) self.assertEqual(None, msg1.Extensions._FindExtensionByNumber('')) def testDuplicateExtensionNumber(self): pool = descriptor_pool.DescriptorPool() factory = message_factory.MessageFactory(pool=pool) # Add Container message. f = descriptor_pb2.FileDescriptorProto( name='google/protobuf/internal/container.proto', package='google.protobuf.python.internal') f.message_type.add(name='Container').extension_range.add(start=1, end=10) pool.Add(f) msgs = factory.GetMessages([f.name]) self.assertIn('google.protobuf.python.internal.Container', msgs) # Extend container. f = descriptor_pb2.FileDescriptorProto( name='google/protobuf/internal/extension.proto', package='google.protobuf.python.internal', dependency=['google/protobuf/internal/container.proto']) msg = f.message_type.add(name='Extension') msg.extension.add( name='extension_field', number=2, label=descriptor_pb2.FieldDescriptorProto.LABEL_OPTIONAL, type_name='Extension', extendee='Container') pool.Add(f) msgs = factory.GetMessages([f.name]) self.assertIn('google.protobuf.python.internal.Extension', msgs) # Add Duplicate extending the same field number. f = descriptor_pb2.FileDescriptorProto( name='google/protobuf/internal/duplicate.proto', package='google.protobuf.python.internal', dependency=['google/protobuf/internal/container.proto']) msg = f.message_type.add(name='Duplicate') msg.extension.add( name='extension_field', number=2, label=descriptor_pb2.FieldDescriptorProto.LABEL_OPTIONAL, type_name='Duplicate', extendee='Container') pool.Add(f) with self.assertRaises(Exception) as cm: factory.GetMessages([f.name]) self.assertIn(str(cm.exception), ['Extensions ' '"google.protobuf.python.internal.Duplicate.extension_field" and' ' "google.protobuf.python.internal.Extension.extension_field"' ' both try to extend message type' ' "google.protobuf.python.internal.Container"' ' with field number 2.', 'Double registration of Extensions']) def testExtensionValueInDifferentFile(self): # Add Container message. f1 = descriptor_pb2.FileDescriptorProto( name='google/protobuf/internal/container.proto', package='google.protobuf.python.internal') f1.message_type.add(name='Container').extension_range.add(start=1, end=10) # Add ValueType message. f2 = descriptor_pb2.FileDescriptorProto( name='google/protobuf/internal/value_type.proto', package='google.protobuf.python.internal') f2.message_type.add(name='ValueType').field.add( name='setting', number=1, label=descriptor_pb2.FieldDescriptorProto.LABEL_OPTIONAL, type=descriptor_pb2.FieldDescriptorProto.TYPE_INT32, default_value='123') # Extend container with field of ValueType. f3 = descriptor_pb2.FileDescriptorProto( name='google/protobuf/internal/extension.proto', package='google.protobuf.python.internal', dependency=[f1.name, f2.name]) f3.extension.add( name='top_level_extension_field', number=2, label=descriptor_pb2.FieldDescriptorProto.LABEL_OPTIONAL, type_name='ValueType', extendee='Container') f3.message_type.add(name='Extension').extension.add( name='nested_extension_field', number=3, label=descriptor_pb2.FieldDescriptorProto.LABEL_OPTIONAL, type_name='ValueType', extendee='Container') class SimpleDescriptorDB: def __init__(self, files): self._files = files def FindFileByName(self, name): return self._files[name] db = SimpleDescriptorDB({f1.name: f1, f2.name: f2, f3.name: f3}) pool = descriptor_pool.DescriptorPool(db) factory = message_factory.MessageFactory(pool=pool) msgs = factory.GetMessages([f1.name, f3.name]) # Deliberately not f2. msg = msgs['google.protobuf.python.internal.Container'] desc = msgs['google.protobuf.python.internal.Extension'].DESCRIPTOR ext1 = desc.file.extensions_by_name['top_level_extension_field'] ext2 = desc.extensions_by_name['nested_extension_field'] m = msg() m.Extensions[ext1].setting = 234 m.Extensions[ext2].setting = 345 serialized = m.SerializeToString() pool = descriptor_pool.DescriptorPool(db) factory = message_factory.MessageFactory(pool=pool) msgs = factory.GetMessages([f1.name, f3.name]) # Deliberately not f2. msg = msgs['google.protobuf.python.internal.Container'] desc = msgs['google.protobuf.python.internal.Extension'].DESCRIPTOR ext1 = desc.file.extensions_by_name['top_level_extension_field'] ext2 = desc.extensions_by_name['nested_extension_field'] m = msg.FromString(serialized) self.assertEqual(2, len(m.ListFields())) self.assertEqual(234, m.Extensions[ext1].setting) self.assertEqual(345, m.Extensions[ext2].setting) if __name__ == '__main__': unittest.main()