Mockito

Mock

@Mock
List<String> mockedList;
 
List mockList = Mockito.mock(ArrayList.class);

Spy

@Test
public void whenNotUseSpyAnnotation_thenCorrect() {
    List<String> spyList = Mockito.spy(new ArrayList<String>());
    
    spyList.add("one");
    spyList.add("two");
 
    Mockito.verify(spyList).add("one");
    Mockito.verify(spyList).add("two");
 
    assertEquals(2, spyList.size());
 
    Mockito.doReturn(100).when(spyList).size();
    assertEquals(100, spyList.size());
}

Verify

• 验证被调用过 x times

Captor

Links

• Powermock
• Mockk