IDEA进行单元测试简例

一、新建工程

 

二、新建类

Student

package com.cattle.mockito.domain;

/**
 * @author by XXX
 * @descriptaion #
 * @date 2020/6/11
 */
public class Student {

    private int id;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public int getAge() {
        return age;
    }

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

    public Student(int id, int age, String name) {
        this.id = id;
        this.age = age;
        this.name = name;
    }

    public String getName() {
        return name;
    }

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

    private int age;

    private String name;
}

StudentDao

package com.cattle.mockito.dao;

import com.cattle.mockito.domain.Student;
import org.springframework.stereotype.Component;

/**
 * @author by XXX
 * @descriptaion #
 * @date 2020/6/11
 */
@Component
public class StudentDao {

    public Student getStudentById(int id) {
        return new Student(1, 10, "Tony");
    }
}

StudentService

package com.cattle.mockito.service;

import com.cattle.mockito.dao.StudentDao;
import com.cattle.mockito.domain.Student;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 * @author by XXX
 * @descriptaion #
 * @date 2020/6/11
 */
@Service
public class StudentService {

    @Autowired
    StudentDao studentDao;

    public Student getStudentById(int id) {
        return studentDao.getStudentById(id);
    }

}

Pom

自动生成的pom有缺失需添加以下依赖

4.0.0org.springframework.bootspring-boot-starter-parent2.3.0.RELEASEcom.cattlemockito0.0.1-SNAPSHOTmockitoDemo project for Spring Boot1.8org.springframework.bootspring-boot-starter-weborg.junit.platformjunit-platform-launchertestorg.springframework.bootspring-boot-starter-testtestorg.junit.vintagejunit-vintage-engineorg.apache.maven.pluginsmaven-compiler-plugin1.81.8UTF-8org.springframework.bootspring-boot-maven-plugin

生成测试类

package com.cattle.mockito.service;

import com.cattle.mockito.dao.StudentDao;
import com.cattle.mockito.domain.Student;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.Mockito;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.util.Assert;


/**
 * @author by XXX
 * @descriptaion #
 * @date 2020/6/11
 */
@SpringBootTest
class StudentServiceTest {

    @Autowired
    StudentService studentService;

    @Autowired
    StudentDao studentDao;
    @BeforeEach
    void setUp() {
        // 执行测试之前进行更改
        Mockito.when(studentDao.getStudentById(1)).thenReturn(new Student(1, 18, "cattle"));
    }

    @Test
    void getStudentById() {
        Student student = studentService.getStudentById(1);
        System.out.println(student.getAge());
        System.out.println(student.getName());
        System.out.println(student.getId());
    }



}

源码：https://gitee.com/jakhyd/JunitTest