### Question:
RestAuthRedirectCallbackHandler extends AbstractRestAuthCallbackHandler<RedirectCallback> { public String getCallbackClassName() { return CALLBACK_NAME; }  RedirectCallback handle(HttpServletRequest request, HttpServletResponse response,
            JsonValue postBody, RedirectCallback originalCallback); String getCallbackClassName(); JsonValue convertToJson(RedirectCallback callback, int index); RedirectCallback convertFromJson(RedirectCallback callback, JsonValue jsonCallback);  }### Answer:
@Test public void shouldGetCallbackClassName() { String callbackClassName = restAuthRedirectCallbackHandler.getCallbackClassName(); assertEquals(RedirectCallback.class.getSimpleName(), callbackClassName); }