Mockito thenReturn() vs thenAnswer()

Mockito is a very powerful test library for Java. In most cases, setting some mock action with thenReturn() is enough. But in some rare cases, we need to use thenAnswer(). thenReturn() example First, let's review the basic use of thenReturn() First, I want to test getResultWithParam(). Above test case succeeds. Wrong test case Next, I …