Can I mix Argument Captor and a regular matcher?

Question

I need to verify a method with multiple parameter in Mockito, but need to capture only one argument, the others I need only a simple matcher. Is that possible?

For instance, if I have:

@Mock
private Map<K,V> mockedMap;
...
ArgumentCaptor<K> argument = ArgumentCaptor.forClass(K.class);
verify(mockedMap).put(argument.capture(), any(V.class));

In this case do I need to write a captor for each argument in spite of the fact I need to capture only the first argument?

Answer 1

In this case do I need to write a captor for each argument in spite of the fact I need to capture only the first argument?

durron597's answer is correct—you do not need to capture all arguments if you want to capture one of them. One point of clarification, though: a call to ArgumentCaptor.capture() counts as a Mockito matcher, and in Mockito if you use a matcher for any method argument you do have to use a matcher for all arguments.

For a method yourMock.yourMethod(int, int, int) and an ArgumentCaptor<Integer> intCaptor:

/*  good: */  verify(yourMock).yourMethod(2, 3, 4);  // eq by default
/*  same: */  verify(yourMock).yourMethod(eq(2), eq(3), eq(4));

/*   BAD: */  verify(yourMock).yourMethod(intCaptor.capture(), 3, 4);
/* fixed: */  verify(yourMock).yourMethod(intCaptor.capture(), eq(3), eq(4));

These also work:

verify(yourMock).yourMethod(intCaptor.capture(), eq(5), otherIntCaptor.capture());
verify(yourMock).yourMethod(intCaptor.capture(), anyInt(), gt(9000));