java mockito 在 spy 方法上返回对象序列
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mockito return sequence of objects on spy method
提问by David
I know you can set several different objects to be be returned on a mock. Ex.
我知道你可以设置几个不同的对象在模拟上返回。前任。
when(someObject.getObject()).thenReturn(object1,object2,object3);
Can you do the same thing with a spied object somehow? I tried the above on a spy with no luck. I read in the docs to use doReturn()on a spy like below
你能以某种方式对一个被监视的物体做同样的事情吗？我在没有运气的间谍上尝试了上述方法。我在文档中阅读以用于doReturn()像下面这样的间谍
doReturn("foo").when(spy).get(0);
But deReturn()only accepts one parameter. I'd like to return different objects in a specific order on a spy. Is this possible?
但deReturn()只接受一个参数。我想在间谍上以特定顺序返回不同的对象。这可能吗？
I have a class like the following and i'm trying to test it. I want to test myClass, not anotherClass
我有一个像下面这样的课程，我正在尝试测试它。我想测试myClass，不是anotherClass
public class myClass{
//class code that needs several instances of `anotherClass`
public anotherClass getObject(){
return new anotherClass();
}
}
回答by fge
You can chain doReturn()calls before when(), so this works (mockito 1.9.5):
您可以doReturn()在之前链接调用when()，所以这有效（mockito 1.9.5）：
private static class Meh
{
public String meh() { return "meh"; }
}
@Test
public void testMeh()
{
final Meh meh = spy(new Meh());
doReturn("foo").doReturn("bar").doCallRealMethod().when(meh).meh();
assertEquals("foo", meh.meh());
assertEquals("bar", meh.meh());
assertEquals("meh", meh.meh());
}
Also, I didn't know you could do when(x.y()).thenReturn(z1,z2), when I have to do this I use chained .thenReturn()calls as well:
另外，我不知道你可以这样做when(x.y()).thenReturn(z1,z2)，当我必须这样做时，我也使用链式.thenReturn()调用：
when(x.y()).thenReturn(z1).thenThrow().thenReturn(z2)
