从junit测试中获取自定义方法注释值 [英] Get custom method annotation value from junit test

问题描述

我有一个 junit 测试，我想在方法上使用注释来定义测试设置.

I have a junit test where I'd like to use an annotation on methods to define test settings.

我有一个测试类的超类，我在其中抽象了一些处理以及我想读取方法注释值的地方.

I have a super class of the test class where I have abstracted some processing and where I'd like to read the method annotation values.

我见过通过循环遍历类来读取方法注释的例子.我不确定这是否适合我的需要.如何找到调用了哪个测试方法，然后读取那些特定的注释值(TrialMethod.name)?

I have seen examples of reading method annotations by looping over a class. I'm not sure this will work for what I need. How do I find which test method was called and then read those specific annotation values (TrialMethod.name)?

public class MyUTest extends Processor{

    @Test
    @TrialMethod(name = "methodToBeTested")
    public void testMethod() throws Exception {
        //assert stuff
    }

}


public class Processor extends TestCase{

    private TrialMethodModel trialMethodModel = new TrialMethodModel();

    private void setMethodNameByAnnotation() {
        Class<?> clazz = this.getClass();
        Class<TrialMethod> trialMethodClass = TrialMethod.class;

        for (Method method : clazz.getDeclaredMethods()){

            if (method.isAnnotationPresent(trialMethodClass)){
                trialMethodModel.setName(method.getAnnotation(trialMethodClass).name());
            }
        }
    }
}

@Documented
@Target(ElementType.METHOD)
@Retention(value=RetentionPolicy.RUNTIME)
public @interface TrialMethod {

    String name();

}

推荐答案

我了解到您可以通过 junit 类访问 junit 方法.那么获取注解值就很简单了.

I learned that you can access the junit method through the junit class. Then getting the annotation value is trivial.

private void setTrialMethodByAnnotation() {

    Class<?> clazz = this.getClass();
    Class<TrialMethod> trialMethod = TrialMethod.class;

    Method method = null;
    try {
        method = clazz.getMethod(this.getName(),null);
    } catch (SecurityException e) {
        logger.error(e.getMessage());
    } catch (NoSuchMethodException e) {
        logger.error(e.getMessage());
    }

    if(method.isAnnotationPresent(trialMethod)){
        trialMethodModel.setName(method.getAnnotation(trialMethod).name());
        ...
    }
}

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