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问题描述
有没有一种用泛型参数嘲笑类的干净方法?假设我必须模拟一个类 Foo< T> ,我需要将它传递给期望 Foo< Bar> 。我可以很容易地做到以下几点:
Is there a clean method of mocking a class with generic parameters? Say I have to mock a class Foo<T> which I need to pass into a method that expects a Foo<Bar>. I can do the following easily enough:
Foo mockFoo = mock(Foo.class); when(mockFoo.getValue).thenReturn(new Bar());假设 getValue()返回泛型类型 T 。但是当我稍后将它传递给期望 Foo< Bar> 的方法时,会有小猫。是铸造这样做的唯一手段?
Assuming getValue() returns the generic type T. But that's going to have kittens when I later pass it into a method expecting Foo<Bar>. Is casting the only means of doing this?
推荐答案我认为你需要投它,但它不应该太bad:
I think you do need to cast it, but it shouldn't be too bad:
Foo<Bar> mockFoo = (Foo<Bar>) mock(Foo.class); when(mockFoo.getValue).thenReturn(new Bar());更多推荐
使用Mockito模拟具有通用参数的类
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