Test register acc spring

    public void test_create_user_success() throws Exception {
    	User user =  new User(1, "Daenerys","Targaryes","emaill","haslo");
 
       when(userService.addWithDefaultRole(user));

        mockMvc.perform(
                post("/api/register")
                
                        .contentType(MediaType.APPLICATION_JSON)
                        .content(asJsonString(user)))
        .andExpect(status().isCreated())
        .andExpect(header().string("location", containsString("api/user/1")));


   
        verify(userService, times(1)).addWithDefaultRole(user);
        verifyNoMoreInteractions(userService);
    } ```

https://github.com/PatrykBrzuchacz/SpringProjekt-master3-master

 @Test
    public void test_create_user_success() throws Exception {
    	User user =  new User("Daenerys","Targaryes","ema@adsill","hasewlo");
 
       when(userService.addWithDefaultRole(user));

        mockMvc.perform(
                post("/api/register"))
        .andExpect(status().isOk())
        .andExpect(content().contentType(MediaType.APPLICATION_JSON))
                      
        .andExpect(status().isCreated())
        .andExpect(header().string("location", containsString("api/user/1")));


   
        verify(userService, times(1)).addWithDefaultRole(user);
        verifyNoMoreInteractions(userService);
    }

@PostMapping("/register")
		public ResponseEntity<Void> register(@RequestBody User user,BindingResult result,UriComponentsBuilder ucBuilder ) {
			
			validator.validate(user, result);
			if (result.hasErrors()){
	            return new ResponseEntity<Void>(HttpStatus.CONFLICT);}
			else {
		userService.addWithDefaultRole(user);
		 HttpHeaders headers = new HttpHeaders();
	        headers.setLocation(ucBuilder.path("/users/{id}").buildAndExpand(user.getId()).toUri());
	        return new ResponseEntity<Void>(headers, HttpStatus.CREATED);
			}}

when(userService.addWithDefaultRole(user)).thenReturn(user)