파라미터로 넘어오는 값 확인하기

MyList myList = mock(MyList.class);
ArgumentCaptor<String> valueCapture = ArgumentCaptor.forClass(String.class);
doNothing().when(myList).add(any(Integer.class), valueCapture.capture());
myList.add(0, "captured");
 
assertEquals("captured", valueCapture.getValue());