SpringBoot测试

加入依赖：

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-test</artifactId>
</dependency>

测试时，需要在Test类上加两句注解

@RunWith(SpringRunner.class)

@SpringBootTest

基本测试，以测service为例：

package com.ah.test;

import org.junit.Assert;
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.stereotype.Service;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest
public class SbTest4Service {
	@Autowired
	UserService service;

	@Test
	public void m() {
		System.out.println("---使用断言做一个测试");
		Assert.assertTrue(service.isLogin());
	}
}

@Service
class UserService {
	public boolean isLogin() {
		return true;
	}
}

测Controller，比较麻烦，因为正常运行时，是通过浏览器访问Controller。

SpringBoot使用MockMvc进行控制层测试。

mock：模拟的。

以下示例，使用了Restfull风格API，分别演示了MockMvc测试的四种情况：

• 分段写法
• 链式写法
• 传json
• 获取json

package com.ah.test;

import javax.servlet.http.HttpSession;

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.http.MediaType;
import org.springframework.mock.web.MockHttpSession;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;
import org.springframework.test.web.servlet.ResultActions;
import org.springframework.test.web.servlet.ResultMatcher;
import org.springframework.test.web.servlet.request.*;
import org.springframework.test.web.servlet.result.*;
import org.springframework.test.web.servlet.setup.MockMvcBuilders;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.context.WebApplicationContext;

@RunWith(SpringRunner.class)
@SpringBootTest

public class SbTest4Controller {
	@Autowired
	private WebApplicationContext webApplicationContext;

	private MockMvc moc;
	private MockHttpSession session;

	@Before
	public void setupMockMvc() {
		moc = MockMvcBuilders.webAppContextSetup(webApplicationContext).build();
		session = new MockHttpSession();
		// 设置已登录用户（很多时候网站都会有登录要求）
		session.setAttribute("user", "Cat");
	}

	@Test
	public void get() throws Exception {
		MockHttpServletRequestBuilder builder = MockMvcRequestBuilders.get("/testCtrl/get");
		builder = builder.session(session);
		ResultActions resultActions = moc.perform(builder);
		// 判断状态
		ResultMatcher resultMatcher = MockMvcResultMatchers.status().isOk();
		resultActions = resultActions.andExpect(resultMatcher);
	}

	@Test
	public void insert() throws Exception {
		// 链式写法
		moc.perform(MockMvcRequestBuilders.post("/testCtrl/insert").session(session))
				.andExpect(MockMvcResultMatchers.status().isOk());
	}

	@Test
	public void update() throws Exception {
		// 传json（控制器需要@RequestBody）
		String json = "{"id":"123"}";

		MockHttpServletRequestBuilder builder = MockMvcRequestBuilders.put("/testCtrl/update")
				.contentType(MediaType.APPLICATION_JSON_UTF8).accept(MediaType.APPLICATION_JSON_UTF8)
				.content(json.getBytes()).session(session);

		moc.perform(builder).andExpect(MockMvcResultMatchers.status().isOk());
	}

	@Test
	public void delete() throws Exception {
		// 判断返回Json是否正确，并查看返回信息（可以看全部返回的json）
		MockHttpServletRequestBuilder builder = MockMvcRequestBuilders.delete("/testCtrl/delete").session(session);

		moc.perform(builder).andExpect(MockMvcResultMatchers.status().isOk())
				.andExpect(MockMvcResultMatchers.jsonPath("$.id").value("456")).andDo(MockMvcResultHandlers.print());
		;
	}

}

@RestController
@RequestMapping("/testCtrl")
class MyController {
	@GetMapping(value = "/get")
	public void get(HttpSession session) {
		System.out.println("get：" + session.getAttribute("user"));
	}

	@PostMapping(value = "/insert")
	public void insert() {
		System.out.println("---insert");
	}

	@PutMapping(value = "/update")
	public void update(@RequestBody String json) {
		System.out.println("---json = " + json);
		System.out.println("---update");
	}

	@DeleteMapping(value = "/delete")
	public String delete() {
		System.out.println("---delete");
		return "{"id":"456"}";
	}
}