Mockito 的间谍不能与使用 Maven 的 AspectJ 一起工作

Mockito's spy does not work along with AspectJ using maven

我有以下测试 class 并且我正在使用 Mockito 的间谍程序。通过使用 Eclipse 运行 进行我的单元测试(右键单击->运行 作为单元测试)所有测试都通过了,这意味着使用 m2e 和 AJDT 的 Eclipse 构建过程工作正常。

@RunWith(MockitoJUnitRunner.class)
public class SampleTest {

@Mock
private AnotherClazz mockedClazz;

@Spy
@InjectMocks
private SampleImpl sampleService = new SampleImpl() {

    @Override
    public void someMethod() {
       ...
    }
};


@Test
public void someTest() throws Exception {
    sampleService.methodUnderTest();
}

然而,当我使用 Maven 进行 运行 测试时,出现以下异常。

Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.183 sec <<<     FAILURE!
    org.sample.SampleTest  Time elapsed: 0.182 sec  <<< ERROR!
    org.mockito.exceptions.base.MockitoException: Problems initiating spied field     sampleService
    at     org.mockito.internal.runners.JUnit45AndHigherRunnerImpl.withBefores(JUnit45AndHigherRunnerImpl.java:27)
    at org.junit.runners.BlockJUnit4ClassRunner.methodBlock(BlockJUnit4ClassRunner.java:254)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:238)
    at org.junit.runners.ParentRunner.schedule(ParentRunner.java:63)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
    at org.junit.runners.ParentRunner.access[=11=]0(ParentRunner.java:53)
    at org.junit.runners.ParentRunner.evaluate(ParentRunner.java:229)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
    at org.mockito.internal.runners.JUnit45AndHigherRunnerImpl.run(JUnit45AndHigherRunnerImpl.java:37)
    at org.mockito.runners.MockitoJUnitRunner.run(MockitoJUnitRunner.java:62)
    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:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    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:115)
    at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
Caused by: org.mockito.exceptions.base.MockitoException: 
Mockito cannot mock this class: class org.sample.SamplelTest
Mockito can only mock visible & non-final classes.
If you're not sure why you're getting this error, please report to the mailing list.
    ... 25 more
Caused by: org.mockito.cglib.core.CodeGenerationException: java.lang.reflect.InvocationTargetException-->null
    at org.mockito.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:238)
    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.cglib.ClassImposterizer.createProxyClass(ClassImposterizer.java:123)
    at org.mockito.internal.creation.cglib.ClassImposterizer.imposterise(ClassImposterizer.java:57)
    at org.mockito.internal.creation.cglib.ClassImposterizer.imposterise(ClassImposterizer.java:49)
    at org.mockito.internal.creation.cglib.CglibMockMaker.createMock(CglibMockMaker.java:24)
    at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:33)
    at org.mockito.internal.MockitoCore.mock(MockitoCore.java:59)
    at org.mockito.Mockito.mock(Mockito.java:1285)
    at org.mockito.internal.configuration.injection.SpyOnInjectedFieldsHandler.processInjection(SpyOnInjectedFieldsHandler.java:43)
    at org.mockito.internal.configuration.injection.MockInjectionStrategy.process(MockInjectionStrategy.java:68)
    at org.mockito.internal.configuration.injection.MockInjectionStrategy.relayProcessToNextStrategy(MockInjectionStrategy.java:89)
    at org.mockito.internal.configuration.injection.MockInjectionStrategy.process(MockInjectionStrategy.java:71)
    at org.mockito.internal.configuration.injection.MockInjection$OngoingMockInjection.apply(MockInjection.java:93)
    at org.mockito.internal.configuration.DefaultInjectionEngine.injectMocksOnFields(DefaultInjectionEngine.java:20)
    at org.mockito.internal.configuration.InjectingAnnotationEngine.injectMocks(InjectingAnnotationEngine.java:100)
    at org.mockito.internal.configuration.InjectingAnnotationEngine.processInjectMocks(InjectingAnnotationEngine.java:62)
    at org.mockito.internal.configuration.InjectingAnnotationEngine.process(InjectingAnnotationEngine.java:56)
    at org.mockito.MockitoAnnotations.initMocks(MockitoAnnotations.java:108)
    ... 25 more
Caused by: java.lang.reflect.InvocationTargetException
    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.mockito.cglib.core.ReflectUtils.defineClass(ReflectUtils.java:385)
    at org.mockito.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:220)
    ... 44 more
Caused by: java.lang.VerifyError: Cannot inherit from final class
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
    ... 50 more

在带有 AJDT 的 Eclipse 中使用的 AJC 编译器和我的 AspectJ maven 插件配置之间有什么区别?我在这里缺少哪个配置或阶段?

这是我的 pom.xml:

<dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjrt</artifactId>
        <version>1.6.11</version>
</dependency>
<build>
    <plugins>
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>aspectj-maven-plugin</artifactId>
            <version>1.4</version>
            <configuration>
                <source>1.6</source>
                <target>1.6</target>
            </configuration>
            <executions>
                <execution>
                    <phase>process-sources</phase>
                    <goals>
                        <goal>compile</goal>
                        <goal>test-compile</goal>
                    </goals>
                </execution>
            </executions>
        </plugin>
    </plugins>
</build>

更新:我还没有找到解决方案,但我知道为什么会这样。问题实际上在于重写 someMethod()。作为解决方法,删除方法覆盖或注释掉 aspectj maven 插件可以解决该问题。我不能让 AspectJ 脱离我的项目,所以我也必须模拟 someMethod() 而不覆盖它(例如使用 Mockito 本身)。对我来说它看起来像是一个错误,但我不太确定它是来自 AspectJ 还是 Mockito。

What is here the difference between the AJC compiler used in Eclipse with AJDT and my AspectJ maven plugin configuration?

好吧,您在 Maven 中使用了 2011 年的非常旧的 AspectJ 编译器和运行时,但是您的 AJDT 可能使用了更新得多的版本。顺便说一句,您的代码真的必须符合 Java 6 吗?无论如何,这应该不是问题,但我建议使用当前的 AspectJ Maven Plugin 1.7 以及最新的 AspectJ 版本。您仍然可以用它编译 1.6 兼容的代码。当我试图用旧的 AspectJ 版本重现你的情况时,代码甚至无法编译,但你没有提供真正的 SSCCE,所以我不知道你的 JDK 版本,Mockito 版本, JUnit版本等

在您的 POM 中尝试这个 Maven 配置:

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <java.version>1.6</java.version>
    <aspectj.version>1.8.6</aspectj.version>
</properties>

<build>
    <plugins>
        <plugin>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.3</version>
            <configuration>
                <source>${java.version}</source>
                <target>${java.version}</target>
                <!-- IMPORTANT -->
                <useIncrementalCompilation>false</useIncrementalCompilation>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>aspectj-maven-plugin</artifactId>
            <version>1.7</version>
            <configuration>
                <showWeaveInfo>true</showWeaveInfo>
                <source>${java.version}</source>
                <target>${java.version}</target>
                <Xlint>ignore</Xlint>
                <complianceLevel>${java.version}</complianceLevel>
                <encoding>UTF-8</encoding>
                <verbose>true</verbose>
            </configuration>
            <executions>
                <execution>
                    <!-- IMPORTANT -->
                    <phase>process-sources</phase>
                    <goals>
                        <goal>compile</goal>
                        <goal>test-compile</goal>
                    </goals>
                </execution>
            </executions>
            <dependencies>
                <dependency>
                    <groupId>org.aspectj</groupId>
                    <artifactId>aspectjtools</artifactId>
                    <version>${aspectj.version}</version>
                </dependency>
            </dependencies>
        </plugin>
    </plugins>
</build>

<dependencies>
    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjrt</artifactId>
        <version>${aspectj.version}</version>
        <scope>runtime</scope>
    </dependency>
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.11</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.mockito</groupId>
        <artifactId>mockito-core</artifactId>
        <version>1.9.5</version>
        <scope>test</scope>
    </dependency>
</dependencies>

这对我有用。顺便说一句,请注意 <complianceLevel> 除了 <source><target>