testcontainers、hikari 和无法验证连接 org.postgresql.jdbc.PgConnection

Question

我有一个弹簧启动应用程序。我正在使用 testcontainers 对其进行测试，以确保 DB (postgres) 和 Repository 实现执行它们应该执行的操作。

我使用以下内容初始化容器并且运行良好。

    @Container
    @SuppressWarnings("rawtypes")
    private static final PostgreSQLContainer POSTGRE_SQL = new PostgreSQLContainer("postgres:9.6")
        .withDatabaseName("xxx")
        .withUsername("xxx")
        .withPassword("xxx");

    static class Initialiser implements ApplicationContextInitializer<ConfigurableApplicationContext> {
        @Override
        public void initialize(ConfigurableApplicationContext applicationContext) {
            TestPropertyValues.of(
                "spring.datasource.url=" + POSTGRE_SQL.getJdbcUrl(),
                "spring.datasource.username=" + POSTGRE_SQL.getUsername(),
                "spring.jpa.hibernate.ddl-auto=create-drop"
            ).applyTo(applicationContext.getEnvironment());
        }
    }

问题是，虽然测试成功，但在课程结束时，当容器关闭时，我从 hikari 收到以下错误消息

[31mWARN [0;39m [36mcom.zaxxer.hikari.pool.PoolBase.isConnectionAlive[0;39m - HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@4d728138 (This connection has been closed.). Possibly consider using a shorter maxLifetime value.
[31mWARN [0;39m [36mcom.zaxxer.hikari.pool.PoolBase.isConnectionAlive[0;39m - HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@43070a2e (This connection has been closed.). Possibly consider using a shorter maxLifetime value.
[31mWARN [0;39m [36mcom.zaxxer.hikari.pool.PoolBase.isConnectionAlive[0;39m - HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@1aa53837 (This connection has been closed.). Possibly consider using a shorter maxLifetime value.
[31mWARN [0;39m [36mcom.zaxxer.hikari.pool.PoolBase.isConnectionAlive[0;39m - HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@3d7cffa2 (This connection has been closed.). Possibly consider using a shorter maxLifetime value.
[31mWARN [0;39m [36mcom.zaxxer.hikari.pool.PoolBase.isConnectionAlive[0;39m - HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@634e7d8e (This connection has been closed.). Possibly consider using a shorter maxLifetime value.
[31mWARN [0;39m [36mcom.zaxxer.hikari.pool.PoolBase.isConnectionAlive[0;39m - HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@18634db3 (This connection has been closed.). Possibly consider using a shorter maxLifetime value.
[31mWARN [0;39m [36mcom.zaxxer.hikari.pool.PoolBase.isConnectionAlive[0;39m - HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@2bb4ba08 (This connection has been closed.). Possibly consider using a shorter maxLifetime value.
[31mWARN [0;39m [36mcom.zaxxer.hikari.pool.PoolBase.isConnectionAlive[0;39m - HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@71efd133 (This connection has been closed.). Possibly consider using a shorter maxLifetime value.
[31mWARN [0;39m [36mcom.zaxxer.hikari.pool.PoolBase.isConnectionAlive[0;39m - HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@61dd608d (This connection has been closed.). Possibly consider using a shorter maxLifetime value.
[31mWARN [0;39m [36mcom.zaxxer.hikari.pool.PoolBase.isConnectionAlive[0;39m - HikariPool-1 - Failed to validate connection org.postgresql.jdbc.PgConnection@6351b7d0 (This connection has been closed.). Possibly consider using a shorter maxLifetime value.

他们没有让我的测试失败，我怀疑这是因为容器和数据库不再存在，而 hikari 仍然试图保持连接池处于活动状态。所以完成测试需要几秒钟，而 hikari 正式抱怨连接失败。

我试图在玩，设置阿光性质Initialiser类似"spring.datasource.hikari.maxLifetime=1"，并"spring.datasource.hikari.idleTimeout=1"没有任何的运气。

有什么建议？

谢谢

Answer 1

我遇到了完全相同的问题：如果单独运行它，测试就通过了，但是当我与其他测试一起运行它时，测试失败了。

我发现 SpringBootTest 在测试之间重用 Spring 上下文，因此测试之间有一个公共的 Hikari Pool。但在后台 testcontainers 杀死了（在上一个测试之后）一个容器并创建了一个新容器（在下一个测试之前）。SpringBootTest 不知道该更改会导致新的 Postgres 容器，因此 Hikari Pool 与之前的测试中相同（指向已使用且当前不可用的端口）

就我而言，添加@DirtiesContext注释来测试有帮助。