SpringBoot单元测试demo

对SpringBoot项目进行单元测试

在http://start.spring.io/ 选择要测试的SpringBoot版本，这里选择“1.5.4.RELEASE”。
选择需要添加的模块依赖：选择spring-boot-starter-actuator和spring-boot-starter-test
点击生成项目按钮
解压项目压缩包
导入IDEA
在src/java 目录下新建具体的测试Controller，如创建HelloWorldController.java 测试Controller：

package com.example.springbootjunittest.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
 * HelloWorld 测试控制器
 *
 * @author <a href="mailto:[email protected]">strongant</a>
 * @see
 * @since 2017/8/20
 */
@RestController
public class HelloWorldController {

    @RequestMapping(value = "/")
    public String index() {
        return "Hello World";
    }
}

（可选）修改默认的8080端口，这里设置为9999，只需要在项目的src/main/resources/application.properties文件中添加如下一行即可：

server.port= 9999

在生成的SpringbootJunitTestApplicationTests.java文件中修改如下：

package com.example.springbootjunittest;

import com.example.springbootjunittest.controller.HelloWorldController;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.boot.test.web.client.TestRestTemplate;
import org.springframework.http.MediaType;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;

import static org.assertj.core.api.Java6Assertions.assertThat;
import static org.hamcrest.core.IsEqual.equalTo;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;

@RunWith(SpringRunner.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
public class SpringbootJunitTestApplicationTests {

    @Autowired
    private TestRestTemplate restTemplate;

    private MockMvc mvc;

    @Before
    public void setUp() throws Exception {
        mvc = MockMvcBuilders.standaloneSetup(new HelloWorldController()).build();
    }

    @Test
    public void sayHello() throws Exception {
        mvc.perform(MockMvcRequestBuilders.get("/").accept(MediaType.APPLICATION_JSON))
                .andExpect(status().isOk())
                .andExpect(content().string(equalTo("Hello World")));
    }

    @Test
    public void exampleTest() {
        String body = this.restTemplate.getForObject("/", String.class);
        assertThat(body).isEqualTo("Hello World");
    }

    @Test
    public void contextLoads() {
    }

}

运行即可，测试输出是否与期望一致。

strongant/SpringBootJUnitTest.md

对SpringBoot项目进行单元测试