为什么 Mockito 类型匹配器匹配不相关的对象？

Question

我需要一个依赖于参数类型的模拟行为。我尝试使用 Matchers.any(Class<>) 来提供两种行为：

public class MockitoTest {
    public interface ToMock {
        String accept(Object object);
    }
    interface A {
    }
    interface B {
    }
    @Test
    public void doAnswer() {
        ToMock mock = Mockito.mock(ToMock.class);

        Mockito.doReturn("A received").when(mock).accept(Matchers.any(A.class));
        Mockito.doReturn("B received").when(mock).accept(Matchers.any(B.class));

        Assert.assertEquals("A received", mock.accept(new A() {}));
        Assert.assertEquals("B received", mock.accept(new B() {}));
    }
}

测试失败：

org.junit.ComparisonFailure: expected:<[A] received> but was:<[B] received>

我做错了什么？

Mockito 版本 1.9.5

Answer 1

这是预期的行为。根据 Matchers.any(Class)

的文档

Any kind object, not necessary of the given class. The class argument is provided only to avoid casting.

为什么 Mockito 类型匹配器匹配不相关的对象？

Why Mockito type matchers match unrelated objects?

java

mocking

mockito

matcher