使用 Testcontainers 进行 Dropwizard 集成测试

Question

我正在尝试运行 dropwizard 针对 dockered 数据库的集成测试。

我尝试过的：

@ClassRule
public static final PostgreSQLContainer postgres = new PostgreSQLContainer();

@ClassRule
    public final DropwizardAppRule<Configuration> RULE = new DropwizardAppRule<>(
            Application.class,
            CONFIG_PATH,
            ConfigOverride.config("dataSourceFactory.url", postgres.getJdbcUrl()),
            ConfigOverride.config("dataSourceFactory.user", postgres.getUsername()),
            ConfigOverride.config("dataSourceFactory.password", postgres.getPassword())
    );

我得到Caused by: java.lang.IllegalStateException: Mapped port can only be obtained after the container is started

将它们链接在一起也不起作用

@ClassRule
    public static TestRule chain = RuleChain.outerRule(postgres = new PostgreSQLContainer())
            .around(RULE = new DropwizardAppRule<>(
                    Application.class,
                    CONFIG_PATH,
                    ConfigOverride.config("dataSourceFactory.url", postgres.getJdbcUrl()),
                    ConfigOverride.config("dataSourceFactory.user", postgres.getUsername()),
                    ConfigOverride.config("dataSourceFactory.password", postgres.getPassword())
            ));

终于成功了，但据我所知，运行每个测试都有新的 DropwizardAppRule，这不好...

@ClassRule
public static final PostgreSQLContainer postgres = new PostgreSQLContainer();

@Rule
    public final DropwizardAppRule<Configuration> RULE = new DropwizardAppRule<>(
            Application.class,
            CONFIG_PATH,
            ConfigOverride.config("dataSourceFactory.url", postgres.getJdbcUrl()),
            ConfigOverride.config("dataSourceFactory.user", postgres.getUsername()),
            ConfigOverride.config("dataSourceFactory.password", postgres.getPassword())
    );

那么如何链接规则，以便在创建 DropwizardAppRule 之前先启动 PostgreSQLContainer 并启动容器？

Answer 1

通过将 PostgreSQLContainer 作为单例启动来使其工作。

    public static final PostgreSQLContainer postgres = new PostgreSQLContainer();
    static {
        postgres.start();
    }

    @ClassRule
    public final DropwizardAppRule<Configuration> RULE = new DropwizardAppRule<>(
            Application.class,
            CONFIG_PATH,
            ConfigOverride.config("dataSourceFactory.url", postgres.getJdbcUrl()),
            ConfigOverride.config("dataSourceFactory.user", postgres.getUsername()),
            ConfigOverride.config("dataSourceFactory.password", postgres.getPassword())
    );

使用 Testcontainers 进行 Dropwizard 集成测试

Dropwizard integration testing with Testcontainers

dropwizard

testcontainers