I’m using Mockito for unit testing and I want to skip the execution of a method.
I referred to this ticket Skip execution of a line using Mockito. Here, I assume doSomeTask() and createLink() methods are in different classes. But in my case, both the methods are in the same class (ActualClass.java).
//Actual Class
public class ActualClass{
//The method being tested
public void method(){
//some business logic
validate(param1, param2);
//some business logic
}
public void validate(arg1, arg2){
//do something
}
}
//Test class
public class ActualClassTest{
@InjectMocks
private ActualClass actualClassMock;
@Test
public void test_method(){
ActualClass actualClass = new ActualClass();
ActualClass spyActualClass = Mockito.spy(actualClass);
// validate method creates a null pointer exception, due to some real time data fetch from elastic
doNothing().when(spyActualClass).validate(Mockito.any(), Mockito.any());
actualClassMock.method();
}
}
Since there arises a null pointer exception when the validate method is executed, I’m trying to skip the method call by spying the ActualClass object as stated in the ticket I mentioned above. Still, the issue is not resolve. The validate method gets executed and creates a null pointer exception due to which the actual test method cannot be covered.
So, how do I skip the execution of the validate() method that is within the same class.
In case of any external dependencies the following two annotations can be used at once. @InjectMocks @Spy This will actually spy the original method. If the method you want to skip exists in some other file, annotate the object of the class with @Spy in which the method to be skipped exists.
You must always use your spy class when calling method().
@Test
public void test_method(){
ActualClass spyActualClass = Mockito.spy(actualClassMock);
doNothing().when(spyActualClass).validate(Mockito.any(), Mockito.any());
spyActualClass.method();
}
In practice, instead of
actualClassMock.method();
you must use
spyActualClass.method();