Question

我有一个测试类TestService1包含测试方法和两个服务类Service1和Service2。我正在为isResourceAlreadyPresent类中的方法Service2编写JUnit测试，其中包括对Service1类方法的调用。在测试方法中我写了

when(testMapper1.getAlreadyPresentResources()).thenReturn(mockTestResourceList);

所以当testMapper1.getAlreadyPresentResources()被调用时，它应该返回大小为1的mockTestResourceList，但它不会返回此列表，而是返回一个大小为0的列表。

    @ContextConfiguration(locations = "../TestServiceApplicationContext1.xml")
    public class TestService1
    {
      @Autowired
      private TestMapper1 testMapper1;

      private TestResource testResource1;
      private List<TestResource> mockTestResourceList;

      private Service1 service1;

      private Service1 service2;

      @Before
      public void setUp()  
      {
        testMapper1 = mock(TestMapper1.class);

        service1 = Service1Util.getService();
        service1.setTestMapper1(testMapper1);

        mockTestResourceList = new ArrayList<TestResource>();
        testResource1 = Service1Util.createTestResource();
        testResource1.setId(1);
        mockTestResourceList.add(testResource1);

      }

      @Test
      public void isResourceAlreadyPresentTest()
      {
        when(testMapper1.getAlreadyPresentResources()).thenReturn(mockTestResourceList);

        boolean isPresent = service2.isResourceAlreadyPresent();

        assertTrue(isPresent == true);
      }

    }

    public class Service2
    {
      ... some code ...

      public boolean isResourceAlreadyPresent()
      {
        List<TestResource> resourceList = Service1Util.getAlreadyPresentResources(); //service1.getTestMapper1().getAlreadyPresentResources(); 
        //resourceList size is 0
        if(resourceList.size() > 0)
          return true;
        else
          return false;
      }

      ... some code ...
  }

Answer 1

您需要做的是在您的junit调用任何方法之前，在您正在进行测试的Service2类中设置Service1对象。我想你没有在Service 2中正确设置Service1对象，而是取其他值。

在Service2上调用任何测试方法之前，使用Reflection在Service2类中设置Service1对象。反射应该仅用于测试目的而不是代码中。

ReflectionTestUtils.setField(service1instance, "service",
            serviceobjectvalue);

mockito` when`没有返回正确的模拟列表

1 个答案: