java 的Mockito。捅一个间谍。

Posted 2021-05-08

@Test
public void whenStubASpy_thenStubbed() {
    List<String> list = new ArrayList<String>();
    List<String> spyList = Mockito.spy(list);
 
    assertEquals(0, spyList.size());
 
    Mockito.doReturn(100).when(spyList).size();
    assertEquals(100, spyList.size());
}