message_test.py 文件源码

def testAssignUnknownEnum(self):
    """Assigning an unknown enum value is allowed and preserves the value."""
    m = unittest_proto3_arena_pb2.TestAllTypes()

    m.optional_nested_enum = 1234567
    self.assertEqual(1234567, m.optional_nested_enum)
    m.repeated_nested_enum.append(22334455)
    self.assertEqual(22334455, m.repeated_nested_enum[0])
    # Assignment is a different code path than append for the C++ impl.
    m.repeated_nested_enum[0] = 7654321
    self.assertEqual(7654321, m.repeated_nested_enum[0])
    serialized = m.SerializeToString()

    m2 = unittest_proto3_arena_pb2.TestAllTypes()
    m2.ParseFromString(serialized)
    self.assertEqual(1234567, m2.optional_nested_enum)
    self.assertEqual(7654321, m2.repeated_nested_enum[0])

  # Map isn't really a proto3-only feature. But there is no proto2 equivalent
  # of google/protobuf/map_unittest.proto right now, so it's not easy to
  # test both with the same test like we do for the other proto2/proto3 tests.
  # (google/protobuf/map_protobuf_unittest.proto is very different in the set
  # of messages and fields it contains).