@Test public void handleMapReturnValue() throws Exception { mavContainer.addAttribute("attr1", "value1"); Map<String, Object> returnValue = new ModelMap("attr2", "value2"); processor.handleReturnValue(returnValue , returnParamMap, mavContainer, webRequest); assertEquals("value1", mavContainer.getModel().get("attr1")); assertEquals("value2", mavContainer.getModel().get("attr2")); }