无法模拟mockito中的类

问题描述：

我正在尝试为声纳插件编写单元测试。然而，在嘲笑其Project类时，由于Mockito尝试使用错误的类名，测试失败。我的测试代码：无法模拟mockito中的类

import org.sonar.api.resources.Project; 

Project project = mock(Project.class);

在运行单元测试，无论是通过行家或直接在Eclipse中，以下堆栈跟踪出现：

java.lang.NoClassDefFoundError: org/apache/maven/project/MavenProject 
at java.lang.Class.getDeclaredMethods0(Native Method) 
at java.lang.Class.privateGetDeclaredMethods(Class.java:2427) 
at java.lang.Class.getDeclaredMethods(Class.java:1791) 
at org.mockito.cglib.core.ReflectUtils.addAllMethods(ReflectUtils.java:349) 
at org.mockito.cglib.proxy.Enhancer.getMethods(Enhancer.java:422) 
at org.mockito.cglib.proxy.Enhancer.generateClass(Enhancer.java:457) 
at org.mockito.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25) 
at org.mockito.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:217) 
at org.mockito.cglib.proxy.Enhancer.createHelper(Enhancer.java:378) 
at org.mockito.cglib.proxy.Enhancer.createClass(Enhancer.java:318) 
at org.mockito.internal.creation.jmock.ClassImposterizer.createProxyClass(ClassImposterizer.java:93) 
at org.mockito.internal.creation.jmock.ClassImposterizer.imposterise(ClassImposterizer.java:50) 
at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:54) 
at org.mockito.internal.MockitoCore.mock(MockitoCore.java:45) 
at org.mockito.Mockito.mock(Mockito.java:921) 
at org.mockito.Mockito.mock(Mockito.java:816) 
at com.databorough.sonar.xametric.MetricAnalysisSensorTest.shouldExecuteOnProjectWithAllParams(MetricAnalysisSensorTest.java:37) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
at java.lang.reflect.Method.invoke(Method.java:597) 
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) 
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) 
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) 
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) 
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28) 
at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79) 
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71) 
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49) 
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) 
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) 
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) 
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) 
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) 
at org.junit.runners.ParentRunner.run(ParentRunner.java:236) 
at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252) 
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141) 
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) 
at java.lang.reflect.Method.invoke(Method.java:597) 
at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189) 
at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165) 
at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85) 
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:113) 
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75) 
Caused by: java.lang.ClassNotFoundException: org.apache.maven.project.MavenProject 
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202) 
    at java.security.AccessController.doPrivileged(Native Method) 
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:307) 
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) 
    at java.lang.ClassLoader.loadClass(ClassLoader.java:248) 
    ... 47 more

该项目的类路径插件构建成功。如何设置测试运行器/ maven将Project视为org.sonar.api.resources.Project类？

答

您的“项目”类被正确对待为“org.sonar.api.resources.Project”。

问题来自Sonar内部使用“org.apache.maven.project.MavenProject”这一事实，所以这个类必须在你的测试类路径上。添加以下依赖你的POM就能解决的问题：

<dependency> 
    <groupId>org.apache.maven</groupId> 
    <artifactId>maven-project</artifactId> 
    <version>2.0.6</version> 
    <scope>test</scope> 
</dependency>

非常感谢，这个依赖解决了我的问题！ –

答

java.lang.NoClassDefFoundError: org/apache/maven/project/MavenProject

这表明类org.sonar.api.resources.Project也许取决于Maven的类，org.apache.maven.project.MavenProject

我不知道声纳是否会将此作为一个依赖？您可能需要为Maven Plugin API添加依赖项。

谢谢，我没有像Fabrice提到的那样依赖它 –

无法模拟mockito中的类

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