package com.zmd.myAnnotation;
import java.lang.annotation.*;

@Retention(RetentionPolicy.RUNTIME) //配置生命周期运行时可以获取到
@Inherited //配置注解的继承性，用了注解的父类，子类默认被修饰
public @interface MyAnnotation {
    String name() default "zmd";
    int age() default 22;
}

package com.zmd.myAnnotation;

import java.lang.annotation.Annotation;

@MyAnnotation(name = "hehe",age = 1)
public class MyClass {
    public static void main(String[] args) {
        //判断是否有MyAnnotation注解修饰
        System.out.println(MyClass.class.isAnnotationPresent(MyAnnotation.class)); //true
        //获取包括继承父类的注解。
        Annotation annotation = MyClass.class.getAnnotation(MyAnnotation.class);
        if (annotation instanceof MyAnnotation){
            MyAnnotation myAnnotation = (MyAnnotation) annotation;
            System.out.println("tag is:" + annotation);  //tag is:@com.zmd.myAnnotation.MyAnnotation(name="hehe", age=1)
            System.out.println("name is:" + myAnnotation.name()); //name is:hehe
            System.out.println("age is:" + myAnnotation.age()); //age is:1
        }
    }
}

package com.zmd.myAnnotation;
import java.lang.annotation.Annotation;

public class MySubClass extends MyClass {
    public static void main(String[] args) {
        //是不是有MyAnnotation注解修饰
        System.out.println(MySubClass.class.isAnnotationPresent(MyAnnotation.class)); //true
        //获取指定类型的Annotation
//        Annotation annotation = SubClass.class.getAnnotation(MyAnnotation.class);//用这行代码，可以获取到MyAnnotation，因为MyAnnotation是获取所有包括继承性的
        Annotation annotation = MySubClass.class.getDeclaredAnnotation(MyAnnotation.class);//用这行代码无法获取到MyAnnotation,因为我们getDeclaredAnnotation方法只能获取到直接修饰该类的注解，不能获取到从父类继承过来的注解
        System.out.println(annotation); //null
        if (annotation instanceof MyAnnotation) { //false 啥也没输出
            System.out.println("tag is " + annotation);
            System.out.println("name is " + ((MyAnnotation) annotation).name());
            System.out.println("age is " + ((MyAnnotation) annotation).age());
        }
    }
}

package com.zmd.autotestTools;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

@Retention(RetentionPolicy.RUNTIME) //运行时可获取
@Target(ElementType.METHOD) //只能修饰方法
public @interface Testable {
}

package com.zmd.autotestTools;

public class MyClass {
    @Testable
    public static void m1() {};

    public static void m2() {};

    @Testable
    public static void m3() {throw new RuntimeException();};

    public static void m4() {};

    @Testable
    public static void m5() {throw new IllegalArgumentException();};

    public static void m6() {};

    @Testable
    public static void m7() {};

    public static void m8() {};
}

package com.zmd.autotestTools;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;

/**
 * @ClassName TestMethod
 * @projectName: object1
 * @author: Zhangmingda
 * @description： XXX
 * date: 2021/5/18.
 */
public class TestMethod {
    public static void test(Class<?> cls) throws IllegalAccessException, InstantiationException {
        //获取所有的方法
        Method[] methods = cls.getMethods();
        //创建一个实例
        MyClass myClass = (MyClass) cls.newInstance();
        for (Method method : methods){
            //如果方法被修饰，意思是可以测试
            if (method.isAnnotationPresent(Testable.class)){
                //那就测试
                try {
                    //如果是静态方法
                    if (Modifier.isStatic(method.getModifiers())){
                        method.invoke(null);
                    }else {
                        method.invoke(MyClass.class);
                    }
                    System.out.println(method.getName() + "测试成功");
                }catch (InvocationTargetException e) {
//                    e.printStackTrace();
                    System.err.println(method.getName() + "测试失败");
                }

            }
        }
    }

    public static void main(String[] args) throws InstantiationException, IllegalAccessException {
        test(MyClass.class);
    }
}