PowerMock模拟创建通用类的新对象

Question

我需要模拟两个对象

Holder<MyClass1> h1 = new Holder<>();
Holder<MyClass2> h2 = new Holder<>();

我使用Mockito和PowerMock

Holder<MyClass1> mock1 = PowerMockito.spy(new Holder<MyClass1>());
Holder<MyClass2> mock2 = PowerMockito.spy(new Holder<MyClass2>());
PowerMockito.whenNew(Holder.class).withNoArguments().thenReturn(mock1);

如何指定通用类型来模拟两个不同的对象？我需要2个模拟测试。谢谢。

Answer 1

一个选项是使用通配符'?'，as：

 Holder<?> holder = new Holder<>();
 Holder<?> mock1 = PowerMockito.spy(holder);
 Holder<?> mock2 = PowerMockito.spy(holder);
 PowerMockito.whenNew(Holder.class).withNoArguments().thenReturn(mock1);