Question

当我尝试在单元测试中窥探对象时，我有一个例外。这是我的单元测试文件：

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations = { "classpath:spring/applicationContext.xml" })
public class BookingSuperManTest {
    BookInfoParams bookInfoParams; 
    HttpAttributeParams httpAttributeParams;
    AbstractRequester requester;
    public void beforeStartTest(){
        bookInfoParams = Mockito.spy(new BookInfoParams());
        httpAttributeParams = Mockito.spy(new HttpAttributeParams());
    }
    @Test
    public void step1GoToHomePage() throws BookingException{
        beforeStartTest();

        requester = new Step1HomePage(bookInfoParams, httpAttributeParams);
        requester.executeRequest();

        Assert.assertNotNull(httpAttributeParams.getResponseGetRequest());
    }
}

我在链接分配bookInfoParams spy：

时得到了异常

java.lang.NoClassDefFoundError: org/mockito/cglib/proxy/MethodInterceptor
    at org.powermock.api.mockito.internal.mockmaker.PowerMockMaker.<init>(PowerMockMaker.java:43)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at java.lang.Class.newInstance(Class.java:379)
    at org.mockito.internal.configuration.plugins.PluginLoader.loadImpl(PluginLoader.java:61)
    at org.mockito.internal.configuration.plugins.PluginLoader.loadPlugin(PluginLoader.java:24)
    at org.mockito.internal.configuration.plugins.PluginRegistry.<init>(PluginRegistry.java:13)
    at org.mockito.internal.configuration.plugins.Plugins.<clinit>(Plugins.java:12)
    at org.mockito.internal.util.MockUtil.<clinit>(MockUtil.java:23)
    at org.mockito.internal.MockitoCore.<init>(MockitoCore.java:40)
    at org.mockito.Mockito.<clinit>(Mockito.java:1103)
    at ive.core.test.webbot.book.vietjet.BookingSuperManTest.beforeStartTest(BookingSuperManTest.java:46)
    at ive.core.test.webbot.book.vietjet.BookingSuperManTest.step1GoToHomePage(BookingSuperManTest.java:54)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:73)
    at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:82)
    at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:73)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:224)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:83)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
    at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:68)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:163)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: java.lang.ClassNotFoundException: org.mockito.cglib.proxy.MethodInterceptor
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    ... 44 more

这是我的pom文件中的依赖项

<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>4.12</version>
</dependency>
<dependency>
    <groupId>org.mockito</groupId>
    <artifactId>mockito-core</artifactId>
    <version>2.0.44-beta</version>
</dependency>
<dependency>
    <groupId>org.powermock</groupId>
    <artifactId>powermock-api-mockito</artifactId>
    <version>1.6.4</version>
</dependency>
<dependency>
    <groupId>org.powermock</groupId>
    <artifactId>powermock-module-junit4</artifactId>
    <version>1.6.4</version>
</dependency>
<dependency>
    <groupId>cglib</groupId>
    <artifactId>cglib</artifactId>
    <version>3.2.1</version>
    <scope>test</scope>
</dependency>

也许版本不兼容或我错过了什么？

Answer 1

它可能是依赖项的问题。 powermock-api-mockito对mockito-core版本1.10.19具有编译时依赖性，但您还定义了对版本2.0.44-beta的依赖关系。这可能是类路径问题。尝试删除对版本2.0.44-beta的显式依赖项。

Answer 2

在版本2.0.32-beta中，Mockito团队将cglib类移至separated jar。但PowerMock仍然依赖于已移动的类，因此您将获得java.lang.NoClassDefFoundError。

在版本1.6.2中，Mockito类被复制到PowerMock中，但不是全部。作为解决方法，我可能会建议克隆，构建并添加到类路径mockito-cglib（https://github.com/mockito/mockito-cglib）。

PowerMock将拥有supported Mockito 2 API，因为1.6.5将在5月底发布，但仍将使用cglib。完整的Mockito 2和Bytebuddy将在1.6.5之后发布。

Developer Guide for Migration to Mockito 2

Answer 3

这种情况正在发生，因为powermock-api-mockito依赖于mockito-core。由于powermock-api-mockito被明确添加为依赖，请删除mockito-core，这可能会导致问题

Answer 4

如果您使用的是{{1}的 2.x.x 版本，因为powermock-api-mockito2与mockito-core不兼容，请使用powermock-api-mockito。

Mockito在春天的间谍对象

4 个答案: