Kotlin与Spring Boot的集成测试

我拥有的：我正在开发一个微服务，使用SpringBoot和Web以及MongoDB作为存储。对于CI集成测试，我使用测试容器。我有两个带有SpringBootTest注释的集成测试，它们使用TestConfig类。TestConfig类为setup MongoDB测试容器提供了固定的公开端口

我的问题是：当我一次运行一个测试时，它们就会成功。但当我同时运行测试时，它们失败了

MongoContainerConfig.kt

@TestConfiguration
class MongoContainerConfig {

    var mongoContainer: GenericContainer<Nothing>

    constructor() {
        mongoContainer = FixedHostPortGenericContainer<Nothing>("mongo")
                .withFixedExposedPort(27018,27017)
        mongoContainer.start()
    }

    @PreDestroy
    fun close() {
        mongoContainer.stop()
    }
}

@SpringBootTest(classes = arrayOf(MongoContainerConfig::class, AssertUtilsConfig::class))
class PositiveTest {

    @Test
    fun test() {}
}

第二次测试

@TestConfiguration
class MongoContainerConfig {

    var mongoContainer: GenericContainer<Nothing>

    constructor() {
        mongoContainer = FixedHostPortGenericContainer<Nothing>("mongo")
                .withFixedExposedPort(27018,27017)
        mongoContainer.start()
    }

    @PreDestroy
    fun close() {
        mongoContainer.stop()
    }
}

@SpringBootTest(classes = arrayOf(MongoContainerConfig::class, AssertUtilsConfig::class))
class PositiveTest {

    @Test
    fun test() {}
}

错误消息

@SpringBootTest(
    classes = arrayOf(MongoContainerConfig::class, AssertUtilsConfig::class),
    webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT
)
class CardControllerTest {

    @Test
    fun test() {}
}

Failed to load ApplicationContext
java.lang.IllegalStateException: Failed to load ApplicationContext
    at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:132)
...
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mongoContainerConfig': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [com.lang.card.engcard.config.MongoContainerConfig$$EnhancerBySpringCGLIB$$e58ffeee]: Constructor threw exception; nested exception is org.testcontainers.containers.ContainerLaunchException: Container startup failed
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1320)
    a

您可以通过CI在github上看到此项目

这很有趣，因为如果将测试重写为java，测试就会工作（哈，这不容易） 测试具有不同的上下文以及MongoContainerConfig调用两次的原因。 修复-在CardControllerTest.kt中添加webEnv as

@SpringBootTest(classes = arrayOf(MongoContainerConfig::class, AssertUtilsConfig::class),
    webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
class PositiveTest 

证明（哈，这不容易） 测试具有不同的上下文以及MongoContainerConfig调用两次的原因。 修复-在CardControllerTest.kt中添加webEnv as

@SpringBootTest(classes = arrayOf(MongoContainerConfig::class, AssertUtilsConfig::class),
    webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
class PositiveTest 

证明