SpringBoot测试junit遇到的坑

一时失言乱红尘 2023-03-13 05:54 94阅读 0赞

# 一、NullPointerException #

@SpringBootTest
    public class TestDemo { 
        @Autowired
        private ITCompanyService companyService;
        @Test
        public void getCom(){ 
            try { 
                CompanyPkSearchRespVo vo = companyService.getCompanyPkSearchByCompanyId("257949626441666560");
                System.out.println("这是一个测试类");
            } catch (Exception e) { 
                e.printStackTrace();
            }
    
        }
    }

**出错：NullPointerException**  
**原因：service层依赖注入不进来**  
**解决：@SpringBootTest，加入启动类Application后就可以了**  
[参考链接][Link 1]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw_size_16_color_FFFFFF_t_70]

# 二、org.springframework.context.ApplicationContextException #

**出错：org.springframework.context.ApplicationContextException**

org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.AbstractMethodError: org.springframework.boot.test.mock.web.SpringBootMockServletContext.getContextPath()Ljava/lang/String;
    	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:185) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:53) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:360) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:158) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:122) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:894) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:553) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
    	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.2.6.RELEASE.jar:2.2.6.RELEASE]
    	at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:126) [spring-boot-test-2.2.6.RELEASE.jar:2.2.6.RELEASE]
    	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99) [spring-test-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124) [spring-test-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:123) [spring-test-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:190) [spring-test-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:132) [spring-test-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:244) [spring-test-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:98) [spring-test-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$5(ClassBasedTestDescriptor.java:337) [junit-jupiter-engine-5.5.2.jar:5.5.2]
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.executeAndMaskThrowable(ClassBasedTestDescriptor.java:342) [junit-jupiter-engine-5.5.2.jar:5.5.2]
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$6(ClassBasedTestDescriptor.java:337) [junit-jupiter-engine-5.5.2.jar:5.5.2]
    	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_181]
    	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) ~[na:1.8.0_181]
    	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382) ~[na:1.8.0_181]
    	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) ~[na:1.8.0_181]
    	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[na:1.8.0_181]
    	at java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:312) ~[na:1.8.0_181]
    	at java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:743) ~[na:1.8.0_181]
    	at java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:742) ~[na:1.8.0_181]
    	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580) ~[na:1.8.0_181]
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeTestInstancePostProcessors(ClassBasedTestDescriptor.java:336) [junit-jupiter-engine-5.5.2.jar:5.5.2]
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateAndPostProcessTestInstance(ClassBasedTestDescriptor.java:259) [junit-jupiter-engine-5.5.2.jar:5.5.2]
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$2(ClassBasedTestDescriptor.java:252) [junit-jupiter-engine-5.5.2.jar:5.5.2]
    	at java.util.Optional.orElseGet(Optional.java:267) ~[na:1.8.0_181]
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$3(ClassBasedTestDescriptor.java:251) [junit-jupiter-engine-5.5.2.jar:5.5.2]
    	at org.junit.jupiter.engine.execution.TestInstancesProvider.getTestInstances(TestInstancesProvider.java:29) ~[junit-jupiter-engine-5.5.2.jar:5.5.2]
    	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$prepare$0(TestMethodTestDescriptor.java:106) ~[junit-jupiter-engine-5.5.2.jar:5.5.2]
    	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:105) ~[junit-jupiter-engine-5.5.2.jar:5.5.2]
    	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:69) ~[junit-jupiter-engine-5.5.2.jar:5.5.2]
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$1(NodeTestTask.java:107) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:107) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:75) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at java.util.ArrayList.forEach(ArrayList.java:1257) ~[na:1.8.0_181]
    	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at java.util.ArrayList.forEach(ArrayList.java:1257) ~[na:1.8.0_181]
    	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:32) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51) ~[junit-platform-engine-1.5.2.jar:1.5.2]
    	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:229) ~[junit-platform-launcher-1.5.2.jar:1.5.2]
    	at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$6(DefaultLauncher.java:197) ~[junit-platform-launcher-1.5.2.jar:1.5.2]
    	at org.junit.platform.launcher.core.DefaultLauncher.withInterceptedStreams(DefaultLauncher.java:211) ~[junit-platform-launcher-1.5.2.jar:1.5.2]
    	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:191) ~[junit-platform-launcher-1.5.2.jar:1.5.2]
    	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:128) ~[junit-platform-launcher-1.5.2.jar:1.5.2]
    	at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:69) ~[junit5-rt.jar:na]
    	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47) ~[junit-rt.jar:na]
    	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242) ~[junit-rt.jar:na]
    	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70) ~[junit-rt.jar:na]
    Caused by: java.lang.AbstractMethodError: org.springframework.boot.test.mock.web.SpringBootMockServletContext.getContextPath()Ljava/lang/String;
    	at springfox.documentation.spring.web.paths.RelativePathProvider.applicationPath(RelativePathProvider.java:37) ~[springfox-spring-web-2.9.2.jar:null]
    	at springfox.documentation.spring.web.paths.AbstractPathProvider.getApplicationBasePath(AbstractPathProvider.java:55) ~[springfox-spring-web-2.9.2.jar:null]
    	at springfox.documentation.spring.web.scanners.ApiListingScanner.scan(ApiListingScanner.java:154) ~[springfox-spring-web-2.9.2.jar:null]
    	at springfox.documentation.spring.web.scanners.ApiDocumentationScanner.scan(ApiDocumentationScanner.java:71) ~[springfox-spring-web-2.9.2.jar:null]
    	at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.scanDocumentation(DocumentationPluginsBootstrapper.java:101) ~[springfox-spring-web-2.9.2.jar:null]
    	at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.start(DocumentationPluginsBootstrapper.java:167) ~[springfox-spring-web-2.9.2.jar:null]
    	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:182) ~[spring-context-5.2.5.RELEASE.jar:5.2.5.RELEASE]
    	... 75 common frames omitted

# 三、java.lang.NoClassDefFoundError #

**错误：java.lang.NoClassDefFoundError: org/springframework/core/annotation/MergedAnnotations$SearchStrategy**  
**原因：spring的版本导致的问题，引入了spring的其他包包含了spring-core，且版本为4.0.3.RELEASE，而我自己引入的spring-test版本为4.0.0.RELESASE，这个包里也包含了spring-core，从而导致spring-core包版本不一致产生了冲突，最后运行报错。**

java.lang.NoClassDefFoundError: org/springframework/core/annotation/MergedAnnotations$SearchStrategy
    
    	at org.springframework.test.context.support.TestPropertySourceUtils.buildMergedTestPropertySources(TestPropertySourceUtils.java:74)
    	at org.springframework.test.context.support.AbstractTestContextBootstrapper.buildMergedContextConfiguration(AbstractTestContextBootstrapper.java:386)
    	at org.springframework.test.context.support.AbstractTestContextBootstrapper.buildDefaultMergedContextConfiguration(AbstractTestContextBootstrapper.java:312)
    	at org.springframework.test.context.support.AbstractTestContextBootstrapper.buildMergedContextConfiguration(AbstractTestContextBootstrapper.java:265)
    	at org.springframework.test.context.support.AbstractTestContextBootstrapper.buildTestContext(AbstractTestContextBootstrapper.java:108)
    	at org.springframework.boot.test.context.SpringBootTestContextBootstrapper.buildTestContext(SpringBootTestContextBootstrapper.java:99)
    	at org.springframework.test.context.TestContextManager.<init>(TestContextManager.java:137)
    	at org.springframework.test.context.TestContextManager.<init>(TestContextManager.java:122)
    	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.createTestContextManager(SpringJUnit4ClassRunner.java:151)
    	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.<init>(SpringJUnit4ClassRunner.java:142)
    	at org.springframework.test.context.junit4.SpringRunner.<init>(SpringRunner.java:49)
    	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    	at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:31)
    	at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:24)
    	at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57)
    	at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:29)
    	at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:57)
    	at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:24)
    	at org.junit.internal.requests.FilterRequest.getRunner(FilterRequest.java:33)
    	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:49)
    	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
    	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
    Caused by: java.lang.ClassNotFoundException: org.springframework.core.annotation.MergedAnnotations$SearchStrategy
    	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
    	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    	... 26 more

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw_size_16_color_FFFFFF_t_70 1]

## 四、Error:(9,45) java: 程序包org.springframework.boot.test.context不存在 ##

明明自己仓库有这个jar报，但就是install项目的时候报Error:(9,45) java: 程序包org.springframework.boot.test.context不存在，  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw_size_16_color_FFFFFF_t_70 2]**解决方法：将本地仓库spring-boot-test文件夹删除，重新下载install**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw_size_16_color_FFFFFF_t_70 3]

## 五、java.lang.IllegalStateException: Failed to load ApplicationContext ##

java.lang.IllegalStateException: Failed to load ApplicationContext
    
    	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:132)
    	at org.springframework.test.context.support.DefaultTestContext.getApplicationContext(DefaultTestContext.java:123)
    	at org.springframework.test.context.web.ServletTestExecutionListener.setUpRequestContextIfNecessary(ServletTestExecutionListener.java:190)
    	at org.springframework.test.context.web.ServletTestExecutionListener.prepareTestInstance(ServletTestExecutionListener.java:132)
    	at org.springframework.test.context.TestContextManager.prepareTestInstance(TestContextManager.java:244)
    	at org.springframework.test.context.junit.jupiter.SpringExtension.postProcessTestInstance(SpringExtension.java:98)
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$5(ClassBasedTestDescriptor.java:337)
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.executeAndMaskThrowable(ClassBasedTestDescriptor.java:342)
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$invokeTestInstancePostProcessors$6(ClassBasedTestDescriptor.java:337)
    	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
    	at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
    	at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1382)
    	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
    	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
    	at java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:312)
    	at java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:743)
    	at java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:742)
    	at java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:580)
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.invokeTestInstancePostProcessors(ClassBasedTestDescriptor.java:336)
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.instantiateAndPostProcessTestInstance(ClassBasedTestDescriptor.java:259)
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$2(ClassBasedTestDescriptor.java:252)
    	at java.util.Optional.orElseGet(Optional.java:267)
    	at org.junit.jupiter.engine.descriptor.ClassBasedTestDescriptor.lambda$testInstancesProvider$3(ClassBasedTestDescriptor.java:251)
    	at org.junit.jupiter.engine.execution.TestInstancesProvider.getTestInstances(TestInstancesProvider.java:29)
    	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$prepare$0(TestMethodTestDescriptor.java:106)
    	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:105)
    	at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.prepare(TestMethodTestDescriptor.java:69)
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$prepare$1(NodeTestTask.java:107)
    	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.prepare(NodeTestTask.java:107)
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:75)
    	at java.util.ArrayList.forEach(ArrayList.java:1257)
    	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)
    	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)
    	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)
    	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)
    	at java.util.ArrayList.forEach(ArrayList.java:1257)
    	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)
    	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)
    	at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)
    	at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)
    	at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)
    	at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:32)
    	at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)
    	at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51)
    	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:229)
    	at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$6(DefaultLauncher.java:197)
    	at org.junit.platform.launcher.core.DefaultLauncher.withInterceptedStreams(DefaultLauncher.java:211)
    	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:191)
    	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:128)
    	at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:69)
    	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
    	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
    Caused by: org.springframework.context.ApplicationContextException: Failed to start bean 'documentationPluginsBootstrapper'; nested exception is java.lang.AbstractMethodError: org.springframework.boot.test.mock.web.SpringBootMockServletContext.getContextPath()Ljava/lang/String;
    	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:185)
    	at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:53)
    	at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:360)
    	at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:158)
    	at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:122)
    	at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:894)
    	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:553)
    	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747)
    	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
    	at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
    	at org.springframework.boot.test.context.SpringBootContextLoader.loadContext(SpringBootContextLoader.java:126)
    	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContextInternal(DefaultCacheAwareContextLoaderDelegate.java:99)
    	at org.springframework.test.context.cache.DefaultCacheAwareContextLoaderDelegate.loadContext(DefaultCacheAwareContextLoaderDelegate.java:124)
    	... 63 more
    Caused by: java.lang.AbstractMethodError: org.springframework.boot.test.mock.web.SpringBootMockServletContext.getContextPath()Ljava/lang/String;
    	at springfox.documentation.spring.web.paths.RelativePathProvider.applicationPath(RelativePathProvider.java:37)
    	at springfox.documentation.spring.web.paths.AbstractPathProvider.getApplicationBasePath(AbstractPathProvider.java:55)
    	at springfox.documentation.spring.web.scanners.ApiListingScanner.scan(ApiListingScanner.java:154)
    	at springfox.documentation.spring.web.scanners.ApiDocumentationScanner.scan(ApiDocumentationScanner.java:71)
    	at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.scanDocumentation(DocumentationPluginsBootstrapper.java:101)
    	at springfox.documentation.spring.web.plugins.DocumentationPluginsBootstrapper.start(：DocumentationPluginsBootstrapper.java:167)
    	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:182)
    	... 75 more

**原因：@SpringBootTest注解不加载src/test/resources下的资源文件**  
**解决方法：[链接地址][Link 2]**

## 六、java.lang.Exception: No runnable methods ##

五月 12, 2020 11:37:07 上午 org.junit.vintage.engine.descriptor.RunnerTestDescriptor warnAboutUnfilterableRunner
    警告: Runner org.junit.internal.runners.ErrorReportingRunner (used on class wwfww.warehouse.TestDemo) does not support filtering and will therefore be run completely.
    
    
    
    
    java.lang.Exception: No runnable methods
    
    	at org.junit.runners.BlockJUnit4ClassRunner.validateInstanceMethods(BlockJUnit4ClassRunner.java:191)
    	at org.junit.runners.BlockJUnit4ClassRunner.collectInitializationErrors(BlockJUnit4ClassRunner.java:128)
    	at org.junit.runners.ParentRunner.validate(ParentRunner.java:416)
    	at org.junit.runners.ParentRunner.<init>(ParentRunner.java:84)
    	at org.junit.runners.BlockJUnit4ClassRunner.<init>(BlockJUnit4ClassRunner.java:65)
    	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.<init>(SpringJUnit4ClassRunner.java:137)
    	at org.springframework.test.context.junit4.SpringRunner.<init>(SpringRunner.java:49)
    	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
    	at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:104)
    	at org.junit.vintage.engine.discovery.DefensiveAllDefaultPossibilitiesBuilder$DefensiveAnnotatedBuilder.buildRunner(DefensiveAllDefaultPossibilitiesBuilder.java:113)
    	at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:86)
    	at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
    	at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)
    	at org.junit.vintage.engine.discovery.DefensiveAllDefaultPossibilitiesBuilder.runnerForClass(DefensiveAllDefaultPossibilitiesBuilder.java:56)
    	at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
    	at org.junit.vintage.engine.discovery.ClassSelectorResolver.resolveTestClass(ClassSelectorResolver.java:66)
    	at org.junit.vintage.engine.discovery.ClassSelectorResolver.resolve(ClassSelectorResolver.java:47)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.lambda$resolve$2(EngineDiscoveryRequestResolution.java:129)
    	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
    	at java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1359)
    	at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126)
    	at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:498)
    	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485)
    	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
    	at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152)
    	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    	at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:464)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolve(EngineDiscoveryRequestResolution.java:174)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolve(EngineDiscoveryRequestResolution.java:120)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.access$100(EngineDiscoveryRequestResolution.java:53)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution$DefaultContext.resolve(EngineDiscoveryRequestResolution.java:227)
    	at org.junit.vintage.engine.discovery.MethodSelectorResolver.resolveParentAndAddFilter(MethodSelectorResolver.java:56)
    	at org.junit.vintage.engine.discovery.MethodSelectorResolver.resolve(MethodSelectorResolver.java:40)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.lambda$resolve$2(EngineDiscoveryRequestResolution.java:138)
    	at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
    	at java.util.ArrayList$ArrayListSpliterator.tryAdvance(ArrayList.java:1359)
    	at java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:126)
    	at java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:498)
    	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:485)
    	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
    	at java.util.stream.FindOps$FindOp.evaluateSequential(FindOps.java:152)
    	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
    	at java.util.stream.ReferencePipeline.findFirst(ReferencePipeline.java:464)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolve(EngineDiscoveryRequestResolution.java:174)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolve(EngineDiscoveryRequestResolution.java:120)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.resolveCompletely(EngineDiscoveryRequestResolution.java:87)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolution.run(EngineDiscoveryRequestResolution.java:80)
    	at org.junit.platform.engine.support.discovery.EngineDiscoveryRequestResolver.resolve(EngineDiscoveryRequestResolver.java:112)
    	at org.junit.vintage.engine.discovery.VintageDiscoverer.discover(VintageDiscoverer.java:42)
    	at org.junit.vintage.engine.VintageTestEngine.discover(VintageTestEngine.java:62)
    	at org.junit.platform.launcher.core.DefaultLauncher.discoverEngineRoot(DefaultLauncher.java:177)
    	at org.junit.platform.launcher.core.DefaultLauncher.discoverRoot(DefaultLauncher.java:164)
    	at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:128)
    	at com.intellij.junit5.JUnit5IdeaTestRunner.startRunnerWithArgs(JUnit5IdeaTestRunner.java:69)
    	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
    	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
    	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

**原因：@Test导入的包错了，spring-test需要的Junit是org.junit.Test，但是在@Test有两个包，另一个是org.junit.jupiter.api.Test，如果将org.junit.Test导错成了org.junit.jupiter.api.Test就会报这个错误，改正包之后问题解决**

**解决办法：包改成org.junit.Test**  
![在这里插入图片描述][20200512114044995.png]

[Link 1]: https://blog.csdn.net/howard789/article/details/81020233
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw_size_16_color_FFFFFF_t_70]: /images/20230312/9c791a1e9d7746a89b1b3f36c5a021bc.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw_size_16_color_FFFFFF_t_70 1]: /images/20230312/fd56996efb084757b86531b819ae70d9.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw_size_16_color_FFFFFF_t_70 2]: /images/20230312/08cdd04ff80b48239c66d930786b3047.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80MzA4NTc5Nw_size_16_color_FFFFFF_t_70 3]: /images/20230312/ed94c43a1c6a492ea0cebfb5f7290627.png
[Link 2]: https://blog.csdn.net/MuErHuoXu/article/details/86750497
[20200512114044995.png]: /images/20230312/0e43860177854769aceb68456753bb08.png