【发布时间】：2011-06-25 14:33:27
【问题描述】：
我只想运行我的单元测试的一个子集，这些单元测试由特定的@Category 定义。
所以我阅读了几个 SO 问题，例如 this one（这正是我要找的），还有 this one。
我的问题的解决方案似乎是由ClasspathSuite project 提供的。所以我开始编写NewTest 和OldTest 接口来定义我的测试类别。然后，我创建了AllTests 套件：
@RunWith(ClasspathSuite.class)
public class AllTests { }
之后，我创建了一个AllNewTests 套件：
@RunWith(Categories.class)
@IncludeCategory(NewTest.class)
@SuiteClasses( { AllTests.class })
public class AllNewTests { }
最后，我创建了两个 JUnit 类，每个类别一个：
@Category(NewTest.class)
public class SomeNewTests {
// some tests...
}
@Category(OldTest.class)
public class SomeOldTests {
// some tests...
}
现在，如果我运行 AllTests，Eclipse 会启动我项目的所有测试，而 Maven 会因为找不到测试而失败：
mvn test -Dtest=AllTests
...
-------------------------------------------------------
T E S T S
-------------------------------------------------------
Running my.company.AllTests
Tests run: 0, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.093 sec
There are no tests to run.
如果我运行 AllNewTests（这是正确的做法，对吗？），在 Eclipse 中一切都很好（即它只运行带有 @Category(NewTest.class) 注释的测试）但是 Maven返回错误：
mvn test -Dtest=AllNewTests
...
-------------------------------------------------------
T E S T S
-------------------------------------------------------
Running my.company.AllNewTests
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.125 sec <<< FAILURE!
Results :
Tests in error:
initializationError(my.company.AllNewTests)
Tests run: 1, Failures: 0, Errors: 1, Skipped: 0
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
抛出的异常如下：
org.junit.runner.manipulation.NoTestsRemainException
at org.junit.runners.ParentRunner.filter(ParentRunner.java:256)
at org.junit.experimental.categories.Categories.<init>(Categories.java:142)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:35)
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.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:33)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:146)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:97)
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.booter.ProviderFactory$ClassLoaderProxy.invoke(ProviderFactory.java:103)
at $Proxy0.invoke(Unknown Source)
at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:145)
at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcess(SurefireStarter.java:70)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:69)
我的问题是我做错了什么？
技术细节：Java 6、Maven 3.0.2、JUnit 4.8.1、Surefire 插件 2.7.1、cpsuite-1.2.5
【问题讨论】：
标签： junit maven categories surefire