java - JobLauncherTestUtils 预计至少有 1 个符合自动装配候选资格的 bean
问题描述
我正在尝试让我的 Junit Testcase 工作。实际批次没问题。但将来我想 tdd 我的应用程序。所以我从 junit und spring-batch 开始，并提出了以下代码。但我在错误中运行。
这是我在测试中的@EnableBatchConfiguration 类。
package de.securess.batch.mail.config;
import org.springframework.batch.core.Job;
import org.springframework.batch.core.Step;
import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
import org.springframework.batch.repeat.RepeatStatus;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@Configuration
public class BatchMailAppConfig {
@Autowired
private JobBuilderFactory jobs;
@Autowired
private StepBuilderFactory steps;
@Bean
public Step step0() {
Step step = steps.get("step0")
.tasklet((contribution, chunkContext) -> {
System.out.println("JB: Step0 with chunkContex");
return RepeatStatus.FINISHED;
})
.build();
return step;
}
@Bean Job job() {
System.out.println("JB: job started ...");
Job job = jobs.get("job")
.start(step0())
.build();
return job;
}
}
这是我的测试课：
package de.securess.batch.mail;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.batch.core.ExitStatus;
import org.springframework.batch.core.JobExecution;
import org.springframework.batch.test.JobLauncherTestUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.context.annotation.Bean;
import org.springframework.test.context.ContextConfiguration;
@SpringBootTest
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {de.securess.batch.mail.SpringBatchMailApplication.class,de.securess.batch.mail.config.BatchMailAppConfig.class})
public class SpringBatchMailApplicationTests {
@Autowired
private JobLauncherTestUtils jobLauncherTestUtils;
@Bean
public JobLauncherTestUtils jobLauncherTestUtils() {
return new JobLauncherTestUtils();
}
@Test
public void test() throws Exception {
JobExecution jobExecution = this.jobLauncherTestUtils.launchJob();
assertEquals(ExitStatus.COMPLETED, jobExecution.getExitStatus());
}
}
这是错误代码：
2018-08-01 17:14:47.988 ERROR 16804 --- [ main] o.s.test.context.TestContextManager : Caught exception while allowing TestExecutionListener [org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener@4976085] to prepare test instance [de.securess.batch.mail.SpringBatchMailApplicationTests@43c57161]
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'de.securess.batch.mail.SpringBatchMailApplicationTests': Unsatisfied dependency expressed through field 'jobLauncherTestUtils'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.batch.test.JobLauncherTestUtils' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:586) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:91) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:372) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1341) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireBeanProperties(AbstractAutowireCapableBeanFactory.java:393) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.injectDependencies(DependencyInjectionTestExecutionListener.java:118) ~[spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.test.context.support.DependencyInjectionTestExecutionListener.prepareTestInstance(DependencyInjectionTestExecutionListener.java:83) ~[spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.boot.test.autoconfigure.SpringBootDependencyInjectionTestExecutionListener.prepareTestInstance(SpringBootDependencyInjectionTestExecutionListener.java:44) ~[spring-boot-test-autoconfigure-2.0.4.RELEASE.jar:2.0.4.RELEASE]
at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:246) ~[spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTest(SpringJUnit4ClassRunner.java:227) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner$1.runReflectiveCall(SpringJUnit4ClassRunner.java:289) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit.jar:4.12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.methodBlock(SpringJUnit4ClassRunner.java:291) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:246) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit.jar:4.12]
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit.jar:4.12]
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit.jar:4.12]
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit.jar:4.12]
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit.jar:4.12]
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit.jar:4.12]
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190) [spring-test-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:538) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:760) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:460) [.cp/:na]
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:206) [.cp/:na]
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.batch.test.JobLauncherTestUtils' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1506) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1101) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:583) ~[spring-beans-5.0.8.RELEASE.jar:5.0.8.RELEASE]
... 29 common frames omitted
解决方案
测试执行上下文中JobLauncherTestUtils默认不提供。您需要创建它并将其声明为测试上下文中的 bean。这是一个例子：https ://github.com/spring-projects/spring-batch/blob/master/spring-batch-test/src/test/java/org/springframework/batch/test/StepScopeAnnotatedListenerIntegrationTests.java#L98 -L101
在即将发布的 4.1 版本中，我们添加了一个新注释@SpringBatchTest，将其添加到测试上下文中。您可以在此处找到有关它的更多详细信息：https ://docs.spring.io/spring-batch/4.1.x/reference/html/testing.html#creatingUnitTestClass 。它已经在 4.1.0.M2 版本中可用
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