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
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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://www.cnblogs.com/ffeiyang/p/14981431.html
