spring boot:为service类做参数化单元测试(spring boot 2.4.3)

一，演示项目的相关信息

1,地址:

     https://github.com/liuhongdi/servicetest

2,功能说明：演示给一个service生成测试文件

3,项目结构：如图:

说明：刘宏缔的架构森林是一个专注架构的博客，地址：https://www.cnblogs.com/architectforest

         对应的源码可以访问这里获取： https://github.com/liuhongdi/

说明：作者:刘宏缔 邮箱: 371125307@qq.com

二，如何创建一个测试文件?

1,可以手动创建一个class文件

2,在intellij idea中可以快速创建一个test文件：

   打开一个service类，在类名上执行:  ctrl+shift+T

   然后从弹出的窗口中选择:

    Create New Test

   如图:

 

三，java代码说明

1,service/HelloService.java

package com.servicetest.demo.service;

import org.springframework.stereotype.Service;

@Service
public class HelloService {

    public String sayHello(String name) {
        return "您好,"+name+"!";
    }

    public int addTwo(int first,int second) {
        return first+second;
    }
}

2,service/HelloServiceTest.java

package com.servicetest.demo.service;

import org.junit.jupiter.api.*;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.CsvSource;
import org.springframework.boot.test.context.SpringBootTest;

import javax.annotation.Resource;

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.*;
import static org.hamcrest.Matchers.equalTo;
import static org.junit.jupiter.api.Assertions.*;

@SpringBootTest
@DisplayName("测试HelloService")
class HelloServiceTest {
    @Resource
    HelloService helloService;

    @BeforeAll
    static void initAll() {
        System.out.println("this is BeforeAll");
    }

    @AfterAll
    static void endAll() {
        System.out.println("this is AfterAll");
    }


    @BeforeEach
    public void initOne() {
        System.out.println("this is BeforeEach");
    }

    @AfterEach
    public void endOne() {
        System.out.println("this is AfterEach");
    }

    @Test
    @DisplayName("测试sayhello方法")
    void sayHello() {
        String hellostr = helloService.sayHello("老刘");
        assertThat(hellostr, equalTo("您好,老刘!"));
        assertThat(hellostr, hasLength(6));
        assertThat(hellostr, containsString("您好,"));
    }

    @ParameterizedTest
    @CsvSource({"1,2,3", "11,12,23", "33,100,133"})
    @DisplayName("参数化测试")
    void addTwo(int first,int second,int sum) {
        int rest = helloService.addTwo(first,second);
        assertThat(rest, equalTo(sum));
    }

}

四，测试效果

五，查看spring boot的版本:

  .   ____          _            __ _ _
 /\ / ___'_ __ _ _(_)_ __  __ _    
( ( )\___ | '_ | '_| | '_ / _` |    
 \/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v2.4.3)