Question

我是Testcontainers的新手，所以我有一个问题。我在Spring / Hibernate上有应用程序。我有带有mysql-base（myTestDb）的docker-image（h2testbase）和数据。我使用-p 6161：3306在docker中运行该映像。在test / resources目录中，我有文件application.properties。它包含下一个

jdbc.driverClassName=com.mysql.cj.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:6161/myTestDb?allowPublicKeyRetrieval=true&useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=Europe/Moscow&&useSSL=false
jdbc.username=root
jdbc.cred=admin
hibernate.dialect=org.hibernate.dialect.MySQLDialect
hibernate.show_sql=true
hibernate.format_sql=true

我使用mvn测试-它正在工作。现在，我想使用Testcontainers运行这些测试。我添加了pom.xml依赖项

<dependency>
   <groupId>org.testcontainers</groupId>
   <artifactId>testcontainers</artifactId>
   <version>1.9.1</version>
</dependency>

<dependency>
    <groupId>org.testcontainers</groupId>
    <artifactId>mysql</artifactId>
    <version>1.9.1</version>
    <scope>test</scope>
</dependency>

我扩展了类MySQLContainer

public class TestMySQL extends MySQLContainer {

    public TestMySQL() {
        super();
    }

    public TestMySQL(String dockerImageName) {
        super(dockerImageName);
    }

    @Override
    public String getDriverClassName() {
        return "com.mysql.cj.jdbc.Driver";
    }
}

使用com.mysql.jdbc.Driver的MySQLContainer，并且已弃用。我的测试（例如）

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {
        HibernateConfiguration.class,
        SecurityConfiguration.class,
        SecurityInitializer.class,
        ViewConfiguration.class,
        ViewInitializer.class})
@WebAppConfiguration
public class ControllerServiceJTest {

    @ClassRule
    public static TestMySQL  container
            = new TestMySQL("h2testbase");

    @Autowired
    ControllerService controllerService;

    @Test
    public void stationPagination() {
        Map<String, Object> pag = controllerService.stationPagination(4);
        Assert.assertTrue(((List<Station>)pag.get("stations")).size() == 8);
    }

    @Test
    public void trainPagination() {
        Map<String, Object> pag = controllerService.trainPagination(1);
        Assert.assertTrue(((List<Train>)pag.get("trains")).size() == 20);
    }

    @Test
    public void switchHelper() {
        Assert.assertTrue(controllerService.stationSwitchHelper("BLUE").equals(URLs.REDIRECT_DASHSTATION + "/2"));
    }
}

我在那里撞墙。如果我使用mvn test，我（通过docker ps）看到该容器已启动。它开始了两次或三次（并且映射在诸如328xx之类的随机端口上进行，但是随后maven告诉了我们

org.testcontainers.containers.ContainerLaunchException: Container startup failed
Caused by: org.rnorth.ducttape.RetryCountExceededException: Retry limit hit with exception
Caused by: org.testcontainers.containers.ContainerLaunchException: Could not create/start container
Caused by: org.rnorth.ducttape.TimeoutException: org.rnorth.ducttape.TimeoutException: java.util.concurrent.TimeoutException
Caused by: org.rnorth.ducttape.TimeoutException: java.util.concurrent.TimeoutException
Caused by: java.util.concurrent.TimeoutException

我现在该怎么办？如何告诉我的测试容器所需的端口（6161）？如何使用application.properties中的参数？我找不到在带有数据的DB中使用自定义图像的代码示例。预先谢谢你

更新为失败的测试添加完整结果。

[INFO] -------------------------------------------------------

    [INFO]  T E S T S
    [INFO] -------------------------------------------------------
    [INFO] Running ru.javasch.metro.junit.ControllerServiceJTest
    SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
    SLF4J: Defaulting to no-operation (NOP) logger implementation
    SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
    SLF4J: Failed to load class "org.slf4j.impl.StaticMDCBinder".
    SLF4J: Defaulting to no-operation MDCAdapter implementation.
    SLF4J: See http://www.slf4j.org/codes.html#no_static_mdc_binder for further details.
            ?? Checking the system...
            ? Docker version should be at least 1.6.0
            ? Docker environment should have more than 2GB free disk space
    [ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 97.189 s <<< FAILURE! - in ru.javasch.metro.junit.ControllerServiceJTest
    [ERROR] ru.javasch.metro.junit.ControllerServiceJTest  Time elapsed: 97.187 s  <<< ERROR!
    org.testcontainers.containers.ContainerLaunchException: Container startup failed
    Caused by: org.rnorth.ducttape.RetryCountExceededException: Retry limit hit with exception
    Caused by: org.testcontainers.containers.ContainerLaunchException: Could not create/start container
    Caused by: org.rnorth.ducttape.TimeoutException: org.rnorth.ducttape.TimeoutException: java.util.concurrent.TimeoutException
    Caused by: org.rnorth.ducttape.TimeoutException: java.util.concurrent.TimeoutException
    Caused by: java.util.concurrent.TimeoutException

有一些信息。我尝试使用here中的MySqlContainer进行测试（使用TestMySql）。当我使用干净的mysql：5.5图像-都很好。但是，当我尝试在容器中添加一些修改时（例如addFixedExposedPort），这不是开始，因为已经分配了cuz端口。如果我从脚本添加数据，则为“无法创建容器”。如果我要给它我的图像（h2testbase），则再次“无法创建容器”。

Answer 1

看来您这里有两个问题。

Docker将mysql服务器暴露在一个随机端口上，但是您需要一个固定端口。要解决此问题，您可以使用GenericContainer中的bash来设置固定端口
```
addFixedExposedPort
```
您可能没有数据库public class TestMySQL extends MySQLContainer { public TestMySQL(String dockerImageName) { super(dockerImageName); addFixedExposedPort(6161, MYSQL_PORT); } @Override public String getDriverClassName() { return "com.mysql.cj.jdbc.Driver"; } }，用户test的密码为test，因为它是MySQLContainer中的默认凭据，导致{{1} }您正在得到。使用test，ContainerLaunchException和withDatabaseName正确配置数据库和用户。
```
withUsername
```

更新：

要打开日志记录，请将以下依赖项添加到withPassword

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {
    HibernateConfiguration.class,
    SecurityConfiguration.class,
    SecurityInitializer.class,
    ViewConfiguration.class,
    ViewInitializer.class})
@WebAppConfiguration
public class ControllerServiceJTest {

    @ClassRule
    public static TestMySQL  container
        = new TestMySQL("h2testbase")
          .withDatabaseName("myTestDb")
          .withUsername("root")
          .withPassword("admin");

    @Autowired
    ControllerService controllerService;

    @Test
    public void stationPagination() {
        Map<String, Object> pag = controllerService.stationPagination(4);
        Assert.assertTrue(((List<Station>)pag.get("stations")).size() == 8);
    }

    @Test
    public void trainPagination() {
        Map<String, Object> pag = controllerService.trainPagination(1);
        Assert.assertTrue(((List<Train>)pag.get("trains")).size() == 20);
    }

    @Test
    public void switchHelper() {
        Assert.assertTrue(controllerService.stationSwitchHelper("BLUE").equals(URLs.REDIRECT_DASHSTATION + "/2"));
    }
}

并使用以下内容创建pom.xml

    <dependency>
        <groupId>ch.qos.logback</groupId>
        <artifactId>logback-classic</artifactId>
        <version>1.2.1</version>
    </dependency>

在Testcontainers中使用自定义DB docker-image

1 个答案: