Question

我正在尝试动态分析带有ByteBuddy（1.7.5）的JUnit测试，因此我事先并不知道它们。我通过下面的run（）方法加载它们，并拦截使用下面的Agent（）方法构建的代理。

单元测试在Eclipse中直接运行或在不安装代理程序的情况下运行它时按预期工作。但是一旦安装了代理，测试就会抛出异常并失败。

例如：当测试创建文档时抛出java.io.FileNotFoundException（请参阅下面的堆栈跟踪）。我正在使用开源单元测试（在本例中来自terrier-core，测试类org.terrier.indexing.TestSimpleXMLCollection中的测试）。

有人知道为什么会这样吗？它是否像原始测试和拦截器一样发生了竞争条件？

我的代码如下：

public void run(@SuppressWarnings("rawtypes") Class classWithName, String testMethodName) {
        interceptor.traversed = false;
        Request request = Request.method(classWithName, testMethodName);
        junit.run(request);
}

和

public Agent(String pn) {
        this.projectName = pn;
        this.junit = new JUnitCore();
        this.interceptor = new InterceptorX2();

        new AgentBuilder.Default().type(
                ElementMatchers.not(ElementMatchers.named("junit.framework.testcase"))
                .and(ElementMatchers.nameStartsWithIgnoreCase(projectName)
                        .or(ElementMatchers.nameEndsWithIgnoreCase("test"))
                        .or(ElementMatchers.nameEndsWithIgnoreCase("tests")))
                ,
                ElementMatchers.not(ElementMatchers.isBootstrapClassLoader()))
                .transform(new AgentBuilder.Transformer() {
                    @Override
                    public Builder<?> transform(Builder<?> builder, TypeDescription arg1, ClassLoader arg2, JavaModule arg3) {
                        return builder
                                .method(
                                        ElementMatchers.isPublic()
                                        .and(ElementMatchers.not(ElementMatchers.isDeclaredBy(Object.class))
                                        .and(ElementMatchers.not(ElementMatchers.isDeclaredBy(junit.framework.TestCase.class))))
                                ).intercept(MethodDelegation.to(interceptor));
                    }

                }).installOn(ByteBuddyAgent.install());
    }

修改

我的拦截器没有做任何特别的事情：

@RuntimeType
public Object intercept(@Origin Method m, @SuperCall Callable<?> zuper, @AllArguments Object[] args, @This Object thiz) throws Exception {
        return zuper.call();
}

Stacktrace错误：

java.io.FileNotFoundException: C:\Users\jackt\AppData\Local\Temp\junit6014103019704928063\terrier.properties (Das System kann die angegebene Datei nicht finden)
    at java.io.FileInputStream.open0(Native Method)
    at java.io.FileInputStream.open(FileInputStream.java:195)
    at java.io.FileInputStream.<init>(FileInputStream.java:138)
    at java.io.FileInputStream.<init>(FileInputStream.java:93)
    at org.terrier.tests.ApplicationSetupBasedTest.makeEnvironment$original$m3joH5OH(ApplicationSetupBasedTest.java:81)
    at org.terrier.tests.ApplicationSetupBasedTest.makeEnvironment$original$m3joH5OH$accessor$c8PeV6zd(ApplicationSetupBasedTest.java)
    at org.terrier.tests.ApplicationSetupBasedTest$auxiliary$fr9IrFTX.call(Unknown Source)
    at myproject.bytebuddy.introspect.InterceptorX2.intercept(InterceptorX2.java:79)
    at org.terrier.tests.ApplicationSetupBasedTest.makeEnvironment(ApplicationSetupBasedTest.java)
    at org.terrier.indexing.TestSimpleXMLCollection.makeEnvironment$accessor$BjbiedTZ(TestSimpleXMLCollection.java)
    at org.terrier.indexing.TestSimpleXMLCollection$auxiliary$BcvkPOor.call(Unknown Source)
    at myproject.bytebuddy.introspect.InterceptorX2.intercept(InterceptorX2.java:79)
    at org.terrier.indexing.TestSimpleXMLCollection.makeEnvironment(TestSimpleXMLCollection.java)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    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.RunBefores.evaluate(RunBefores.java:24)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
    at org.junit.rules.RunRules.evaluate(RunRules.java:20)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
    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.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
    at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
    at myproject.bytebuddy.introspect.Agent.run(Agent.java:71)
    at myproject.analysis.MutatorAnalysis.runAgent(MutatorAnalysis.java:43)
    at myproject.Analysis.getResultsForTestCase(Analysis.java:196)
    at myproject.Analysis.startPrivateAnalysis(Analysis.java:163)
    at myproject.Analysis.start(Analysis.java:147)

ByteBuddy Agent：如果拦截方法，JUnit测试失败

0 个答案: