用Mockito mock当前类【同一类】中的方法

这个问题纠结我很久，参考自 点击链接

直接上代码：

1. 被mock类

public class Person {

  private String name;
  private int age;  public Person(String name, int age) {
    this.name = name;
    this.age = age;
  }
  public String getName() {
    return name;
  }

  public void setName(String name) {
    this.name = name;
  }

  public int getAge() {
    return age;
  }

  public void setAge(int age) {
    this.age = age;
  }

  public boolean runInGround(String location) {
    if(location.equals("ground")) {
      System.out.println("The person runs in the " + location);
      return true;
    } else {
      System.out.println("The person doesn't run in the " +   location);
      return false;
    }

  }

  public boolean isPlay() {

    if(this.runInGround("ground")) {
      System.out.println("The person plays.");
      return true;
    }
    else {
      System.out.println("The person doesn't play");
      return false;
    }
  }
}

2.Test类

import org.junit.Assert;
import org.junit.Test;
import org.mockito.Mockito;

public class PersonTest{

  @Test
  public void playTest() {
    Person person = new Person("name", 15, "23435678V");

    Person person1 = Mockito.spy(person);

    Mockito.doReturn(true).when(person1).runInGround("ground");

    Assert.assertEquals(true, person1.isPlay());
  }
}

主要起作用的是这句代码：

Mockito.doReturn(true).when(person1).runInGround("ground");

给出方法返回值，调用的打桩类对应mock方法，就有意想不到的结果。

感谢这位博主的分享