java.lang.IllegalArgumentException: Test class can only have one constructor

测试方法写在了要用的类里

import org.junit.Test;

public class Student {
    private String name;
    private int age;

    public Student() {
    }

    public Student(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) {
        if (age < 0||age>120){
            System.out.println("输入的年龄有误！");
        }else {
            this.age = age;
        }

    }

    public void show(){
        System.out.println(name +","+age);
    }

    @Test
    public void test(){
        Student student = new Student();
        student.setName("张三");
        student.setAge(12);
        student.show();

        Student student1 = new Student("李四", 32);
        student1.show();


//        System.out.println(student.getName());

    }

}

【ErrorMessage】
java.lang.IllegalArgumentException: Test class can only have one constructor
测试方法写在了要用的类里，提示是测试类只能有一个构造函数，上面写的是两个构造函数，再写个专门的测试类吧

【总结】
在要用的类里添加单元测试方法，这个类有且仅有一个无参构造，或者添加一个额外的单元测试类