https://github.com/guoguang/spring_junit_mockito_example
如何写好一个单元测试，使用junit_mockito完成
https://github.com/guoguang/spring_junit_mockito_example
blog-junit junit mockito test test-case
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如何写好一个单元测试，使用junit_mockito完成
- Host: GitHub
- URL: https://github.com/guoguang/spring_junit_mockito_example
- Owner: GuoGuang
- License: mit
- Created: 2020-06-11T12:42:02.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2023-12-05T22:08:00.000Z (almost 2 years ago)
- Last Synced: 2025-01-17T21:44:24.308Z (9 months ago)
- Topics: blog-junit, junit, mockito, test, test-case
- Language: Java
- Homepage: https://codeway.me
- Size: 34.2 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 2
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
## spring_junit_mockito_example
如何写好一个单元测试，使用junit_mockito完成
## 单元测试
单元测试是从测试**最小单元**为维度展开，也就是只测一个方法，只关注代码逻辑，其他的都不关心，这里我使用mockito+junit为案例演示
### 配置Mockito和MockMvc
```
public class UserControllerUnitTest {
private MockMvc mockMvc;
/**
* 被测类中用的类使用@Mock模拟
*/
@Mock
private UserService userService;
/**
* 模拟被测类
*/
@InjectMocks
private UserController userController;
@Before
public void init(){
MockitoAnnotations.initMocks(this);
mockMvc = MockMvcBuilders
.standaloneSetup(userController)
.addFilters(new CORSFilter())
.build();
}
@Ignore
@Test
public void test_page() throws Exception {
/*MvcResult result = mockMvc.perform(MockMvcRequestBuilders.get("/welcomeController").param("pn", "5"))
.andReturn();
//请求成功以后，请求域中会有pageInfo；我们可以取出pageInfo进行验证
MockHttpServletRequest request = result.getRequest();
PageInfo pi = (PageInfo) request.getAttribute("pageInfo");
assertEquals(1,pi.getPageNum());*/
}
}
```
### 查询所有数据
```
@Test
public void test_get_all_success() throws Exception {
List users = Arrays.asList(
new User(1, "Foo"),
new User(2, "Bar"));
// 执行userService.getAll()时，返回users，这里是为了模拟/user接口的userService调用getAll返回的数据
when(userService.getAll()).thenReturn(users);
mockMvc.perform(get("/user"))
.andExpect(status().isOk())
.andExpect(content().contentType(MediaType.APPLICATION_JSON_UTF8_VALUE))
.andExpect(jsonPath("$", hasSize(2)))
.andExpect(jsonPath("$[0].id", is(1)))
.andExpect(jsonPath("$[0].username", is("Foo")))
.andExpect(jsonPath("$[1].id", is(2)))
.andExpect(jsonPath("$[1].username", is("Bar")));
// 验证调用次数
verify(userService, times(1)).getAll();
verifyNoMoreInteractions(userService);
}
```
## 集成测试
集成测试每次测试都需要启动一次容器
```
@RunWith(SpringRunner.class)
@SpringBootTest
public class ResourceServiceTest {
@Autowired
private ResourceService resourceService;
@Test
public void findResourceByCondition() {
QueryVO queryVO = new QueryVO();
List dictByCondition = resourceService.findResourceByCondition(new Resource(), queryVO);
Assert.assertTrue(dictByCondition.size() > 0);
}
}
```
实际开发中业务并非如此简单，可能涉及三方、MQ、等中间件服务，所以测试覆盖率一般80%左右