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Testing data persistence with @DataR2dbcTest and Testcontainers

Anjali Sharma answered on January 17, 2023 Popularity 1/10 Helpfulness 1/10

answer Testing data persistence with @DataR2dbcTest and Testcontainers

Testing data persistence with @DataR2dbcTest and Testcontainers

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The approach is the same you used in chapter 5 for testing the data layer in Catalog Service, but there are two main differences. First, you will use the StepVerifier utility to test the OrderRepository behavior reactively. Second, you will define a PostgreSQL test container instance explicitly.

@DataR2dbcTest                                                     ❶
@Import(DataConfig.class)                                          ❷
@Testcontainers                                                    ❸
class OrderRepositoryR2dbcTests {
 
  @Container                                                       ❹
  static PostgreSQLContainer<?> postgresql =
    new PostgreSQLContainer<>(DockerImageName.parse("postgres:14.4"));
 
  @Autowired
  private OrderRepository orderRepository;
 
  @DynamicPropertySource                                           ❺
  static void postgresqlProperties(DynamicPropertyRegistry registry) {
    registry.add("spring.r2dbc.url", OrderRepositoryR2dbcTests::r2dbcUrl);
    registry.add("spring.r2dbc.username", postgresql::getUsername);
    registry.add("spring.r2dbc.password", postgresql::getPassword);
    registry.add("spring.flyway.url", postgresql::getJdbcUrl);
  }
 
  private static String r2dbcUrl() {                               ❻
    return String.format("r2dbc:postgresql://%s:%s/%s",
      postgresql.getContainerIpAddress(),
      postgresql.getMappedPort(PostgreSQLContainer.POSTGRESQL_PORT),
      postgresql.getDatabaseName());
  }
 
  @Test
  void createRejectedOrder() {
    var rejectedOrder = OrderService.buildRejectedOrder("1234567890", 3);
    StepVerifier
      .create(orderRepository.save(rejectedOrder))                 ❼
      .expectNextMatches(                                          ❽
        order -> order.status().equals(OrderStatus.REJECTED))
      .verifyComplete();                                           ❾
  }
}

https://learning.oreilly.com/library/view/cloud-native-spring/9781617298424/

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: data-persistence java testcontainers testing

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Contributed on Jan 17 2023

Anjali Sharma

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Testing data persistence with @DataR2dbcTest and Testcontainers

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