In this post, we are going to see more functionalities in Mockito.

 

Mock a List interface:

@Test    public void testZie_returnOnce() {        List listMock = mock(List.class);        when(listMock.size()).thenReturn(10);        assertEquals(10, listMock.size());    }

 

Call multi times:

@Test    public void testZie_returnMultis() {        List listMock = mock(List.class);        when(listMock.size()).thenReturn(10).thenReturn(20);        assertEquals(10, listMock.size());        assertEquals(20, listMock.size());    }

First call, return 10, second times return 20.

 

Mock, List.get():

@Test    public void testZie_returnGet() {        List listMock = mock(List.class);        when(listMock.get(0)).thenReturn("Good");        assertEquals("Good", listMock.get(0));        assertEquals(null, listMock.get(1));    }

 

Mockito.anyInt():

@Test    public void testZie_returnGetAny() {        List listMock = mock(List.class);        when(listMock.get(Mockito.anyInt())).thenReturn("Good");        assertEquals("Good", listMock.get(0));        assertEquals("Good", listMock.get(1));    }