动态模拟类中的方法

Question

@Named
public Class A {
   public void methodInA() {
   System.out.println("In A"); 
  }
}

@Named
public Class B {
   public void methodInB() {
   System.out.println("In B"); 
  }
}

下面是我在测试中尝试做的事情。

TestConfig：

@SpyBean
A a;

测试：：

String className = "A";
String methodName = "methodInA";


Object bean = applicationContext.getBean("a");
Class clazzToSpy = bean.getClass();

Class[] paramTypes = clazzToSpy.getMethod(methodName);

Answer answer = new Answer() {
@Override
public Object answer(final InvocationOnMock invocationOnMock) throws Throwable {
   if(invocationOnMock.getMethod().getName().equals(methodName)) {
       throw new UnknownError("Manual Exception Created");
   }
   return invocationOnMock.callRealMethod();

  }
};

//Here I want to use the answer on the mock Something like below.

Method mockedMethod = clazzToSpy.getMethod(methodName, paramTypes);

Mockito.doAnswer(answer).when(mockedMethod)

mockito：通过反射调用参数的mock方法

mockito：是否可以将mock与方法名结合在一起，在when（）调用中创建methodCall？

利用Mockito通过反射模拟方法

Answer 1

这似乎不起作用了，因为你：

@Spy
Method methodSpy;

莫基托投出：

org.mockito.exceptions.base.MockitoException: Unable to initialize @Spy annotated field 'methodSpy'.
Please ensure that the type 'Method' has a no-arg constructor.

如果你：

@Mock
Method methodMock;

java prettyprint-override">org.mockito.exceptions.base.MockitoException:
Cannot mock/spy class java.lang.reflect.Method
Mockito cannot mock/spy because :
    - final class

MockitoAnnotations.initMocks( this );