如何将Testcontainers Cassandra与Spring数据一起用于Apache Cassandra？

Question

我为我的spring boot应用程序开发集成测试，该应用程序与Cassandra一起工作。我使用CassandRatemplate与Cassandra通信。

spring.data.cassandra.contact-points=cassandra-host
spring.data.cassandra.port=9042

@ActiveProfiles("test")
@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@SpringBootTest(classes = {ExampleApplication.class})
@ContextConfiguration(initializers = CounterIntegrationTestContainers.Initializer.class)
@EnableConfigurationProperties
public class CounterIntegrationTestContainers extends CounterIntegrationTest {
    @ClassRule
    public static GenericContainer cassandra =
            new GenericContainer("cassandra:3")
                    .withExposedPorts(9042);

    public static class Initializer implements ApplicationContextInitializer<ConfigurableApplicationContext> {
        @Override
        public void initialize(ConfigurableApplicationContext configurableApplicationContext) {
            EnvironmentTestUtils.addEnvironment(
                "testcontainers",
                configurableApplicationContext.getEnvironment(),
                "cassandra.host=" + cassandra.getContainerIpAddress(),
                "cassandra.port=" + cassandra.getMappedPort(9042)
            );
        }
    }
}

public class BaeldungPostgresqlContainer extends PostgreSQLContainer<BaeldungPostgresqlContainer> {
    private static final String IMAGE_VERSION = "postgres:11.1";
    private static BaeldungPostgresqlContainer container;
 
    private BaeldungPostgresqlContainer() {
        super(IMAGE_VERSION);
    }
 
    public static BaeldungPostgresqlContainer getInstance() {
        if (container == null) {
            container = new BaeldungPostgresqlContainer();
        }
        return container;
    }
 
    @Override
    public void start() {
        super.start();
        System.setProperty("DB_URL", container.getJdbcUrl());
        System.setProperty("DB_USERNAME", container.getUsername());
        System.setProperty("DB_PASSWORD", container.getPassword());
    }
 
    @Override
    public void stop() {
        //do nothing, JVM handles shut down
    }
}

有什么方法可以将Testcontainers Cassandra与Spring数据一起用于Apache Cassandra吗？

Answer 1

看来，我可以用这样的类运行测试：

@RunWith(SpringRunner.class)
@SpringBootTest
@ContextConfiguration(
        initializers = CassandraTestPrjApplicationTests.Initializer.class
)
public class CassandraTestPrjApplicationTests {

    @Test
    public void contextLoads() {
    }

    public static class Initializer implements ApplicationContextInitializer<ConfigurableApplicationContext> {
        @Override
        public void initialize(ConfigurableApplicationContext applicationContext) {
            GenericContainer<?> cassandra =
                    new GenericContainer<>("cassandra:3").withExposedPorts(9042);

            cassandra.start();

            TestPropertyValues.of(
                    "spring.data.cassandra.contact-points=" + cassandra.getContainerIpAddress(),
                    "spring.data.cassandra.port=" + cassandra.getMappedPort(9042)
            ).applyTo(applicationContext);
        }
    }
}

这是我的成绩。构建：

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-data-cassandra'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'

    testCompile "org.testcontainers:testcontainers:1.12.0"
    testCompile "org.testcontainers:cassandra:1.12.0"
}