org.mockito.stubbing

Interface Answer<T>

Type Parameters:

T - the type to return.

All Known Implementing Classes:

AnswerReturnValuesAdapter, CallsRealMethods, ClonesArguments, DoesNothing, ForwardsInvocations, GloballyConfiguredAnswer, Returns, ReturnsArgumentAt, ReturnsDeepStubs, ReturnsElementsOf, ReturnsElementsOf, ReturnsEmptyValues, ReturnsMocks, ReturnsMoreEmptyValues, ReturnsSmartNulls, StubbedInvocationMatcher, ThrowsException, ThrowsExceptionClass

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() {
     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 Summary

Methods

Modifier and Type	Method and Description
T	answer(InvocationOnMock invocation)

Method Detail

answer

T answer(InvocationOnMock invocation)
         throws java.lang.Throwable

Parameters:

invocation - the invocation on the mock.

Returns:

the value to be returned

Throws:

java.lang.Throwable - the throwable to be thrown