Mockito简介
调用mock对象的方法时，不会执行真实的方法，而是返回类型的默认值，如object返回null, int返回0等，否则通过指定when(方法).thenReturn(value)来指定方法的返回值。同时mock对象可以进行跟踪，使用verify方法看是否已经被调用过。而spy对象，默认会执行真实方法，返回值可以通过when.thenReturn进行覆盖。可见mock只要避开了执行一些方法，直接返回指定的值，方便做其他测试。
Service测试用例
需要的依赖
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<dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version> 4.12 </version> <scope>test</scope> </dependency> <dependency> <groupId>org.mockito</groupId> <artifactId>mockito-core</artifactId> <version> 2.23 . 4 </version> <scope>test</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-test</artifactId> <version> 2.1 . 13 .RELEASE</version> </dependency> |
代码示例
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@RunWith (MockitoJUnitRunner. class ) @SpringBootTest () public class StudentServiceTest { @InjectMocks StudentService studentService = new StudentServiceImpl(); @Mock StudentDAO studentDAO;
@Before public void before(){ Mockito.doReturn( new StudentDO( "张三" , 18 )).when(studentDAO).read(Mockito.anyString()); }
@Test public void testRead(){ StudentDO read = studentService.read( "" ); Assert.assertNotNull(read); } } |
Controller测试用例
需要的依赖
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<dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version> 5.1 . 14 .RELEASE</version> </dependency> <dependency> <groupId>com.jayway.jsonpath</groupId> <artifactId>json-path</artifactId> <version> 2.4 . 0 </version> </dependency> |
代码示例
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@RunWith (MockitoJUnitRunner. class ) @SpringBootTest () public class StudentControllerTest { @Resource MockMvc mockMvc;
@InjectMocks StudentController studentController; @Mock StudentService studentService;
@Before public void before() { mockMvc = MockMvcBuilders.standaloneSetup(studentController).build(); Mockito.doReturn( new StudentDO( "张三" , 18 )).when(studentService).read(Mockito.anyString()); }
@Test public void testRead() throws Exception { MockHttpServletRequestBuilder request = MockMvcRequestBuilders.get( "/student/read/1" ); mockMvc.perform(request) .andDo(print()) .andExpect(status().isOk()) .andExpect(jsonPath( "$.name" ).value( "张三" )); }
} |
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原文链接：https://HdhCmsTestcnblogs测试数据/ffeiyang/p/14981431.html
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