Mockito Error Is Not Applicable for the Arguments (void)

Question

Mockito throws error "The method when(T) in the type Stubber is not applicable for the arguments (void)" for a class I'm mocking, can't figure out why.

the code in question is:

Mockito.when(mockObject.myMethod(Mockito.any(MyExecutionContext.class))).thenReturn(value);

I'm aware similar questions have been asked but if somebody could explain a solution for this or point me in the right direction I would greatly appreciate it

Makoto · Accepted Answer · 2015-06-04 18:01:40Z

42

Solution:

Mockito.doReturn(value) .when(mockObject) .myMethod(Mockito.any(MyExecutionContext‌.class))

edited Jun 4, 2015 at 18:01

Makoto

107k29 gold badges199 silver badges236 bronze badges

answered Apr 10, 2015 at 10:09

Reginald

8281 gold badge7 silver badges16 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

StarShine · Accepted Answer · 2021-01-26 00:13:51Z

Its likely that the return type of the method you are mocking (in above example: mockObject.myMethod) is VOID.

If the return type of the method is 'void' then use this format instead:

doThrow(new PersistenceException("Exception occured")).when(mockObject).myMethod(any()); // Note that we can never return a value when return type is void.

Collectives™ on Stack Overflow

Mockito Error Is Not Applicable for the Arguments (void)

2 Answers 2

Comments

Comments

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Related