如何使用@SpringBatchTest测试Spring批处理应用程序？

问题描述 投票：0回答：1

我有一个 Sping 批处理应用程序，它像所有批处理作业一样有 3 个步骤 -> 从 DB2 数据库读取、处理数据并将其写入 csv 文件。我遵循了春季批量测试文档并创建了基本结构。但是，我有很多悬而未决的问题。

  1. 我是否必须创建一个新的数据源，或者我可以使用应用程序中已有的数据源配置来连接到 DB2 数据库吗？
  2. 如果我可以重用旧的数据源及其配置，它会自动完成吗？
  3. step
    使用通过执行
    .sql
    文件创建的bean。我如何在测试 
    step
    时模仿此过程？
  4. 我不想使用任何嵌入式数据库 - 是否可以保持相同的配置并测试应用程序？
  5. 我必须达到最大可能的测试覆盖率，例如 80%。什么是更好的方法，例如测试各个步骤或整个端到端测试以达到良好的测试覆盖率？
  6. 我在使用不同
    Flow
    的应用程序中有
    step
    。如果我测试 
    Flow
    该步骤也会测试吗？

我已经为测试创建了一个基本结构 - 

@EnableAutoConfiguration
@EnableBatchProcessing
@SpringJUnitConfig(xxxConfiguration.class)
@SpringBatchTest
public class BatchTest {

    @Autowired
    private JobLauncherTestUtils jobLauncherTestUtils;

    @Autowired
    private JobRepositoryTestUtils jobRepositoryTestUtils;

    @BeforeEach
    public void clearJobExecutions() {
        this.jobRepositoryTestUtils.removeJobExecutions();
    }

    @Test
    public void testMyJob() throws Exception {
        // given
        JobParameters jobParameters = this.jobLauncherTestUtils.getUniqueJobParameters();

        // when
        JobExecution jobExecution = this.jobLauncherTestUtils.launchJob(jobParameters);

        // then
        //Assertions.assertEquals(ExitStatus.COMPLETED, jobExecution.getExitStatus());
    }

}

我收到的错误看起来像 -

9:55:12.081 [main] DEBUG org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator - JDBC version : 4.1
19:55:12.239 [main] WARN  org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator - HHH000342: Could not obtain connection to query metadata
org.hibernate.HibernateException: Unable to determine Dialect to use [name=DB2, majorVersion=12]; user must register resolver or explicitly set 'hibernate.dialect'
    at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.determineDialect(DialectFactoryImpl.java:109) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.engine.jdbc.dialect.internal.DialectFactoryImpl.buildDialect(DialectFactoryImpl.java:54) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:97) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:175) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:173) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:127) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1460) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1494) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.25.jar:5.3.25]
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.25.jar:5.3.25]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.25.jar:5.3.25]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-5.3.25.jar:5.3.25]

19:55:12.278 [main] DEBUG org.hibernate.service.spi.ServiceBinding - Overriding existing service binding [org.hibernate.engine.jdbc.connections.spi.ConnectionProvider]
19:55:12.279 [main] ERROR org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean - Failed to initialize JPA EntityManagerFactory: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
19:55:12.281 [main] WARN  org.springframework.context.support.GenericApplicationContext - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
19:55:12.289 [main] ERROR org.springframework.test.context.TestContextManager - Caught exception while allowing TestExecutionListener [org.springframework.test.context.support.DependencyInjectionTestExecutionListener@27a0a5a2] to prepare test instance [BatchTest@6b5f8707]
java.lang.IllegalStateException: Failed to load ApplicationContext
    at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:98) ~[spring-test-5.3.25.jar:5.3.25]
    at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:124) ~[spring-test-5.3.25.jar:5.3.25]
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:118) ~[spring-test-5.3.25.jar:5.3.25]
    at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83) ~[spring-test-5.3.25.jar:5.3.25]
    at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:248) ~[spring-test-5.3.25.jar:5.3.25]
    at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:138) ~[spring-test-5.3.25.jar:5.3.25]
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$8(ClassBasedTestDescriptor.java:363) ~[junit-jupiter-engine-5.8.1.jar:5.8.1]
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.executeAndMaskThrowable(ClassBasedTestDescriptor.java:368) ~[junit-jupiter-engine-5.8.1.jar:5.8.1]
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$9(ClassBasedTestDescriptor.java:363) ~[junit-jupiter-engine-5.8.1.jar:5.8.1]
    at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:195) ~[?:?]
    at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) ~[?:?]
    at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655) ~[?:?]
    at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) ~[?:?]
    at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) ~[?:?]
    at java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:312) ~[?:?]
    at java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:735) ~[?:?]
    at java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:734) ~[?:?]
    at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) ~[?:?]
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeTestInstancePostProcessors(ClassBasedTestDescriptor.java:362) ~[junit-jupiter-engine-5.8.1.jar:5.8.1]
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$instantiateAndPostProcessTestInstance$6(ClassBasedTestDescriptor.java:283) ~[junit-jupiter-engine-5.8.1.jar:5.8.1]
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateAndPostProcessTestInstance(ClassBasedTestDescriptor.java:282) ~[junit-jupiter-engine-5.8.1.jar:5.8.1]
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$4(ClassBasedTestDescriptor.java:272) ~[junit-jupiter-engine-5.8.1.jar:5.8.1]
    at java.util.Optional.orElseGet(Optional.java:369) ~[?:?]
    at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$5(ClassBasedTestDescriptor.java:271) ~[junit-jupiter-engine-5.8.1.jar:5.8.1]
    at org.junit.jupiter.engine.execution.TestInstancesProvider.getTestInstances(TestInstancesProvider.java:31) ~[junit-jupiter-engine-5.8.1.jar:5.8.1]
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$prepare$0(TestMethodTestDescriptor.java:102) ~[junit-jupiter-engine-5.8.1.jar:5.8.1]
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:101) ~[junit-jupiter-engine-5.8.1.jar:5.8.1]
    at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:66) ~[junit-jupiter-engine-5.8.1.jar:5.8.1]
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$2(NodeTestTask.java:123) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:123) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:90) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at java.util.ArrayList.forEach(ArrayList.java:1541) ~[?:?]
    at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at java.util.ArrayList.forEach(ArrayList.java:1541) ~[?:?]
    at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:41) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$6(NodeTestTask.java:155) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:141) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:137) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$9(NodeTestTask.java:139) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:138) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:95) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:35) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:54) ~[junit-platform-engine-1.8.2.jar:1.8.2]
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:107) ~[junit-platform-launcher-1.8.2.jar:1.8.2]
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:88) ~[junit-platform-launcher-1.8.2.jar:1.8.2]
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.lambda$execute$0(EngineExecutionOrchestrator.java:54) ~[junit-platform-launcher-1.8.2.jar:1.8.2]
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.withInterceptedStreams(EngineExecutionOrchestrator.java:67) ~[junit-platform-launcher-1.8.2.jar:1.8.2]
    at org.junit.platform.launcher.core.EngineExecutionOrchestrator.execute(EngineExecutionOrchestrator.java:52) ~[junit-platform-launcher-1.8.2.jar:1.8.2]
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:114) ~[junit-platform-launcher-1.8.2.jar:1.8.2]
    at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:86) ~[junit-platform-launcher-1.8.2.jar:1.8.2]
    at org.junit.platform.launcher.core.DefaultLauncherSession$DelegatingLauncher.execute(DefaultLauncherSession.java:86) ~[junit-platform-launcher-1.8.2.jar:1.8.2]
    at org.junit.platform.launcher.core.SessionPerRequestLauncher.execute(SessionPerRequestLauncher.java:53) ~[junit-platform-launcher-1.8.2.jar:1.8.2]
    at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:57) ~[junit5-rt.jar:?]
    at com.intellij.rt.junit.IdeaTestRunner$Repeater$1.execute(IdeaTestRunner.java:38) ~[junit-rt.jar:?]
    at com.intellij.rt.execution.junit.TestsRepeater.repeat(TestsRepeater.java:11) ~[idea_rt.jar:?]
    at com.intellij.rt.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:35) ~[junit-rt.jar:?]
    at com.intellij.rt.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:232) ~[junit-rt.jar:?]
    at com.intellij.rt.junit.JUnitStarter.main(JUnitStarter.java:55) ~[junit-rt.jar:?]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1804) ~[spring-beans-5.3.25.jar:5.3.25]

Caused by: org.hibernate.service.spi.ServiceException: Unable to create requested service [org.hibernate.engine.jdbc.env.spi.JdbcEnvironment]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:275) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:175) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:173) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:127) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1460) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1494) ~[hibernate-core-5.6.7.Final.jar:5.6.7.Final]
    at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.3.25.jar:5.3.25]
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.3.25.jar:5.3.25]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:409) ~[spring-orm-5.3.25.jar:5.3.25]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:396) ~[spring-orm-5.3.25.jar:5.3.25]
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.afterPropertiesSet(LocalContainerEntityManagerFactoryBean.java:341) ~[spring-orm-5.3.25.jar:5.3.25]

我看到所有与数据库连接相关的错误。我该怎么办？

java spring-boot unit-testing spring-batch junit5
1个回答
0
投票

org.hibernate.service.spi.ServiceException
可能发生错误，因为 hibernate 找不到数据源 bean。

您正在使用 

@SpringJUnitConfig
注释。它定义了上下文配置。您的 
xxxConfiguration.class
中可能没有数据源 bean。 https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/test/context/junit/jupiter/SpringJUnitConfig.html

  1. 我是否必须创建一个新的数据源，或者我可以使用应用程序中已有的数据源配置来连接到 DB2 数据库吗？
  • 您不必为测试创建新的数据源。可以使用现有的数据源。
  1. 如果我可以重用旧的数据源及其配置，它会自动完成吗？
  • 不。您需要扫描 dasource bean。如果您使用 Spring Boot，一种方法是使用 
    @SpringBootTest
    注解。您还可以在您的 
    xxxConfiguration.class
    • 中创建数据源 bean
  1. 该步骤使用通过执行 .sql 文件创建的 bean。如何 我可以在测试步骤时模仿这个过程吗？
  • 您可以将 .sql 文件放置在 Bean 正在查找的位置。根据您的代码，您也许可以直接读取 sql 文件或模拟 bean。
  1. 我不想使用任何嵌入式数据库 - 是否可以保持相同的配置并测试应用程序？
  • 是的
  1. 我必须达到最大可能的测试覆盖率，例如 80%。什么是更好的方法，例如测试各个步骤或整个端到端测试以达到良好的测试覆盖率？
  • 追求测试覆盖率是个坏主意。你的决定应该基于什么 最有效率。我会对所有批处理作业进行端到端测试。如果某个具体步骤比较复杂，可以单独测试。简单步骤不需要单独的步骤测试。
  1. 我在使用不同步骤的应用程序中有 Flow。如果我测试流程，该步骤也会被测试吗？
  • 是的
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