Function TEST

cpp/fory/serialization/struct_compatible_test.cc:443–473

}

TEST(SchemaEvolutionTest, AddingSingleField) {
  // Serialize V1, deserialize as V2 (V2 should have default value for email)
  // Create separate Fory instances for V1 and V2
  auto fory_v1 = Fory::builder().compatible(true).xlang(true).build();
  auto fory_v2 = Fory::builder().compatible(true).xlang(true).build();

  // Register both PersonV1 and PersonV2 with the SAME type ID for schema
  // evolution
  constexpr uint32_t PERSON_TYPE_ID = 999;
  auto reg1_result = fory_v1.register_struct<PersonV1>(PERSON_TYPE_ID);
  ASSERT_TRUE(reg1_result.ok()) << reg1_result.error().to_string();
  auto reg2_result = fory_v2.register_struct<PersonV2>(PERSON_TYPE_ID);
  ASSERT_TRUE(reg2_result.ok()) << reg2_result.error().to_string();

  // Serialize PersonV1
  PersonV1 v1{"Alice", 30};
  auto ser_result = fory_v1.serialize(v1);
  ASSERT_TRUE(ser_result.ok()) << ser_result.error().to_string();

  std::vector<uint8_t> bytes = std::move(ser_result).value();

  // Deserialize as PersonV2 - email should be default-initialized (empty
  // string)
  auto deser_result = fory_v2.deserialize<PersonV2>(bytes.data(), bytes.size());
  ASSERT_TRUE(deser_result.ok()) << deser_result.error().to_string();

  PersonV2 v2 = std::move(deser_result).value();
  EXPECT_EQ(v2.name, "Alice");
  EXPECT_EQ(v2.age, 30);
  EXPECT_EQ(v2.email, ""); // Default value for missing field
}

TEST(SchemaEvolutionTest, AddingMultipleFields) {
  auto fory_v1 = Fory::builder().compatible(true).xlang(true).build();