pass remoteUser value in HttpServletRequest to mockmvc perform test

Question

I have an api call as:

@RequestMapping(value = "/course", method = RequestMethod.GET)
ResponseEntity<Object> getCourse(HttpServletRequest request, HttpServletResponse response) throwsException {
        User user = userDao.getByUsername(request.getRemoteUser());

}

I'm getting the user null when I call this from the test class like:

HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
 Mockito.when(request.getRemoteUser()).thenReturn("test1");

    MvcResult result =  mockMvc.perform( get( "/course")
                    .contentType(MediaType.APPLICATION_JSON)
                    .andExpect( status().isOk() )
                    .andExpect( content().contentType( "application/json;charset=UTF-8" ) )
                    .andReturn();

When I debug request object I can see remoteUser=null. So how can I pass the value to remote user?

Answer 1

You can use RequestPostProcessor in order to modify the MockHttpServletRequest in any fashion you want. In your case:

mockMvc.perform(get("/course").with(request -> {
                    request.setRemoteUser("USER");
                    return request;
                })...

And if you're stuck with older versions of Java:

mockMvc.perform(get("/course").with(new RequestPostProcessor() {
            @Override
            public MockHttpServletRequest postProcessRequest(MockHttpServletRequest request) {
                request.setRemoteUser("USER");
                return request;
            }
        })...