如何检查Java类是否包含JUnit4测试？

使用内置的JUnit 4类 org.junit.runners.model.frameworkMethod 来检查方法。

static List<Method> getValidatePublicVoidNoArgMethods(Class clazz) {    List<Method> result = new ArrayList<Method>();    List<frameworkMethod> methods= new TestClass(clazz).getAnnotatedMethods(Test.class);    for (frameworkMethod eachTestMethod : methods){        List<Throwable> errors = new ArrayList<Throwable>();        eachTestMethod.validatePublicVoidNoArg(false, errors);        if (errors.isEmpty()) { result.add(eachTestMethod.getMethod());        }    }    return result;}