How to unit test a Controller method that has a RequestParam of an object?

Question

I have a controller mapping

@RequestMapping(value = "/something", method = RequestMethod.GET)
public String get(@RequestParam("id") Person aPerson, Model aModel) {

    aModel.addAttribute("person", aPerson);
    return "index";
}

How do I go about testing this through MockMvc?

I can do something like this

mockMvc.perform(get("/something?id=1")).andExpect(status().is2xxSuccessful());

But this will not work since the RequestParam is an object, not a String. The conversion is done by Spring but I'm unit testing the method and do not want to start up the application context. How do I unit test something like this with MockMvc?

Answer 1

you may try something like

    @Test
    public void test() throws Exception {
       Model model= new Model();
       mockMvc.perform(MockMvcRequestBuilders.get("/something?id=1")
         .content(asJsonString(model))
         .contentType(MediaType.APPLICATION_JSON)
         .accept(MediaType.APPLICATION_JSON)).andExpect(status().is2xxSuccessful());
    }