WebMvcConfigurer 1부 Formatter - localhost:8080/hello?name=keesun

package me.whiteship.web_mvc_onfigurer;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class SampleController {

    @GetMapping("/hello")
    public String hello(@RequestParam("name") Person person) {
        return "hello " + person.getName();
    }
}

package me.whiteship.web_mvc_onfigurer;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;

import static org.junit.Assert.*;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;

@RunWith(SpringRunner.class)
@WebMvcTest
public class SampleControllerTest {

    @Autowired
    MockMvc mockMvc;

    @Test
    public void hello() throws Exception {
        this.mockMvc.perform(get("/hello")
                .param("name", "keesun"))
                .andDo(print())
                .andExpect(content().string("hello keesun"));
    }

}

package me.whiteship.web_mvc_onfigurer;

import org.springframework.context.annotation.Configuration;
import org.springframework.format.FormatterRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

@Configuration
public class WebConfig implements WebMvcConfigurer {
}

package me.whiteship.web_mvc_onfigurer;

public class Person {
    private String name;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }
}

package me.whiteship.web_mvc_onfigurer;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.web.servlet.MockMvc;

import static org.junit.Assert.*;
import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.content;

@RunWith(SpringRunner.class)
@WebMvcTest
public class SampleControllerTest {

    @Autowired
    MockMvc mockMvc;

    @Test
    public void hello() throws Exception {
        this.mockMvc.perform(get("/hello")
                .param("name", "keesun"))
                .andDo(print())
                .andExpect(content().string("hello keesun"));
    }

}

junit 4로 테스트 결과 아래와 같이 에러가 발생합니다.

Resolved Exception:

             Type = org.springframework.web.method.annotation.MethodArgumentConversionNotSupportedException

MockHttpServletRequest:

      HTTP Method = GET

      Request URI = /hello

       Parameters = {name=[keesun]}

          Headers = []

             Body = <no character encoding set>

    Session Attrs = {}

Handler:

             Type = me.whiteship.web_mvc_onfigurer.SampleController

           Method = me.whiteship.web_mvc_onfigurer.SampleController#hello(Person)

Async:

    Async started = false

     Async result = null

Resolved Exception:

             Type = org.springframework.web.method.annotation.MethodArgumentConversionNotSupportedException

ModelAndView:

        View name = null

             View = null

            Model = null

FlashMap:

       Attributes = null

MockHttpServletResponse:

           Status = 500

    Error message = null

          Headers = []

     Content type = null

             Body = 

    Forwarded URL = null

   Redirected URL = null

          Cookies = []

MockHttpServletRequest:

      HTTP Method = GET

      Request URI = /hello

       Parameters = {name=[keesun]}

          Headers = []

             Body = <no character encoding set>

    Session Attrs = {}

Handler:

             Type = me.whiteship.web_mvc_onfigurer.SampleController

           Method = me.whiteship.web_mvc_onfigurer.SampleController#hello(Person)

Async:

    Async started = false

     Async result = null

Resolved Exception:

             Type = org.springframework.web.method.annotation.MethodArgumentConversionNotSupportedException

ModelAndView:

        View name = null

             View = null

            Model = null

FlashMap:

       Attributes = null

MockHttpServletResponse:

           Status = 500

    Error message = null

          Headers = []

     Content type = null

             Body = 

    Forwarded URL = null

   Redirected URL = null

          Cookies = []

java.lang.AssertionError: Response content 

Expected :hello keesun

Actual   :

<Click to see difference>

소스 확인 좀 부탁드려도 될까요?