How to resolve Unneccessary Stubbing exception

Question

My Code is as below,

@RunWith(MockitoJUnitRunner.class)
public class MyClass {

    private static final String code =\"Test\";

    @Mock
     private MyCl         


        

Answer 1

Looking at a part of your stack trace it looks like you are stubbing the dao.doSearch() elsewhere. More like repeatedly creating the stubs of the same method.

Following stubbings are unnecessary (click to navigate to relevant line of code):
  1. -> at service.Test.testDoSearch(Test.java:72)
Please remove unnecessary stubbings or use 'silent' option. More info: javadoc for UnnecessaryStubbingException class.

Consider the below Test Class for example:

@RunWith(MockitoJUnitRunner.class)
public class SomeTest {
    @Mock
    Service1 svc1Mock1;

    @Mock
    Service2 svc2Mock2;

    @InjectMock
    TestClass class;

    //Assume you have many dependencies and you want to set up all the stubs 
    //in one place assuming that all your tests need these stubs.

    //I know that any initialization code for the test can/should be in a 
    //@Before method. Lets assume there is another method just to create 
    //your stubs.

    public void setUpRequiredStubs() {
        when(svc1Mock1.someMethod(any(), any())).thenReturn(something));
        when(svc2Mock2.someOtherMethod(any())).thenReturn(somethingElse);
    }

    @Test
    public void methodUnderTest_StateUnderTest_ExpectedBehavior() {
        // You forget that you defined the stub for svcMock1.someMethod or 
        //thought you could redefine it. Well you cannot. That's going to be 
        //a problem and would throw your UnnecessaryStubbingException.
       when(svc1Mock1.someMethod(any(),any())).thenReturn(anyThing);//ERROR!
       setUpRequiredStubs();
    }
}

I would rather considering refactoring your tests to stub where necessary.