Junit+Mock

迈不过友情╰ 2022-11-28 10:41 124阅读 0赞

第一次接触Junit+Mock的单元测试，记一下笔记，慢慢完善。
    
    1.@RunWith(MockitoJUnitRunner.class)
    
    2.@RunWith(PowerMockRunner.class)
    @PrepareForTest({UserUtil.class})
    这两个注解解决静态方法问题
    
    3.@Mock:注释被测class方法中需要注入的对象
    @injectMocks:注释被测class
    
    4.Mockito.verify(testService, times(1)).testFunction(arg);
    校验调用某个方法的次数；times(0)校验没有调用某个方法
    
    5.when(...) thenReturn(...)会调用真实的方法
    
    例：when(configConbinationInstanceMapper.selectInstanceList(any(Long.class),any(String.class),any(String.class))).thenReturn(list);
    
    Assert.assertNotNull();//断言某个值 不为空,如果为空就抛出异常
    Assert.assertThat("200", is(pageInfoBaseResponse.getCode()));//如果pageInfoBaseResponse.getCode()为"200"则测试通过
    Assert.assertEquals("200", pageInfoBaseResponse.getCode());//如果pageInfoBaseResponse.getCode()为"200"则测试通过
    例子：
    
    @RunWith(PowerMockRunner.class)
    @PrepareForTest({EasyExcel.class, UserUtil.class})
    public class TestT {
        @InjectMocks
        private ConfigController configController;
        @Mock
        private ConfigService configService;
        @Mock
        private HttpServletRequest request;
        @Mock
        private UserUtil userUtils;
    
        @Test
        public void delete() {
            PowerMockito.mockStatic(UserUtil.class);
            ConfigReqVo reqVo = new ConfigReqVo();
            CasUser user = new CasUser();
            user.setUsername("lks");
            when(userUtils.getUser()).thenReturn(user);
            when(configService.deleteById(any(ConfigReqVo.class))).thenReturn(Boolean.TRUE);
            BaseResponse<Boolean> delete = configController.delete(reqVo, request);
            Assert.assertNotNull(delete);
            Assert.assertEquals("200", delete.getCode());
            Assert.assertThat(Boolean.TRUE, is(delete.getData()));
            Mockito.verify(configService, times(1)).deleteById(reqVo );
        }
    
    }

Junit+Mock

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