Package org.mockito.stubbing

Interface Answer<T>

  • Type Parameters:
    T - the type to return.
    All Known Subinterfaces:
    Stubbing
    All Known Implementing Classes:
    Answers
    public interface Answer<T>
    Generic interface to be used for configuring mock's answer. Answer specifies an action that is executed and a return value that is returned when you interact with the mock.

    Example of stubbing a mock with custom answer: 

    
 when(mock.someMethod(anyString())).thenAnswer(
     new Answer() {
         public Object answer(InvocationOnMock invocation) {
             Object[] args = invocation.getArguments();
             Object mock = invocation.getMock();
             return "called with arguments: " + Arrays.toString(args);
         }
 });

 //Following prints "called with arguments: [foo]"
 System.out.println(mock.someMethod("foo"));

    • Method Detail

      • answer

        T answer​(InvocationOnMock invocation)
  throws Throwable
        Parameters:
        invocation - the invocation on the mock.
        Returns:
        the value to be returned
        Throws:
        Throwable - the throwable to be thrown