Making a mocked method return an argument that was passed to it

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_x000D_ _x000D_ Consider a method signature like: public String myFunction(String abc); Can Mockito help return the same string that the method received?

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manpreet Tuteehub forum best answer Best Answer 2 years ago
_x000D_ You can create an Answer in Mockito. Let's assume, we have an interface named Application with a method myFunction. public interface Application { public String myFunction(String abc); } Here is the test method with a Mockito answer: public void testMyFunction() throws Exception { Application mock = mock(Application.class); when(mock.myFunction(anyString())).thenAnswer(new Answer() { @Override public String answer(InvocationOnMock invocation) throws Throwable { Object[] args = invocation.getArguments(); return (String) args[0]; } }); assertEquals("someString",mock.myFunction("someString")); assertEquals("anotherString",mock.myFunction("anotherString")); } Since Mockito 1.9.5 and Java 8 there is an even easier way by using lambda functions: when(myMock.myFunction(anyString())).thenAnswer(i -> i.getArguments()[0]);

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