descriptor_pool_test.py 文件源码

def testFileDescriptorOptionsWithCustomDescriptorPool(self):
    # Create a descriptor pool, and add a new FileDescriptorProto to it.
    pool = descriptor_pool.DescriptorPool()
    file_name = 'file_descriptor_options_with_custom_descriptor_pool.proto'
    file_descriptor_proto = descriptor_pb2.FileDescriptorProto(name=file_name)
    extension_id = file_options_test_pb2.foo_options
    file_descriptor_proto.options.Extensions[extension_id].foo_name = 'foo'
    pool.Add(file_descriptor_proto)
    # The options set on the FileDescriptorProto should be available in the
    # descriptor even if they contain extensions that cannot be deserialized
    # using the pool.
    file_descriptor = pool.FindFileByName(file_name)
    options = file_descriptor.GetOptions()
    self.assertEqual('foo', options.Extensions[extension_id].foo_name)
    # The object returned by GetOptions() is cached.
    self.assertIs(options, file_descriptor.GetOptions())