Add addUser Method

src/main/java/com/mangkyu/employment/interview/app/user/controller/UserController.java

@@ -0,0 +1,28 @@
+package com.mangkyu.employment.interview.app.user.controller;
+
+import com.mangkyu.employment.interview.app.user.dto.AddUserRequest;
+import com.mangkyu.employment.interview.app.user.service.UserService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RestController;
+
+import javax.validation.Valid;
+
+@RestController
+@RequiredArgsConstructor
+public class UserController {
+
+    private final UserService userService;
+
+    @PostMapping("/user")
+    public ResponseEntity<Void> addUser(@RequestBody @Valid final AddUserRequest addUserRequest) {
+        userService.addUser(addUserRequest);
+
+        return ResponseEntity.status(HttpStatus.CREATED)
+                .build();
+    }
+
+}

src/main/java/com/mangkyu/employment/interview/app/user/service/UserService.java

@@ -1,8 +1,10 @@
 package com.mangkyu.employment.interview.app.user.service;
 
+import com.mangkyu.employment.interview.app.user.dto.AddUserRequest;
 import com.mangkyu.employment.interview.app.user.entity.User;
 import com.mangkyu.employment.interview.app.user.repository.UserRepository;
 import lombok.RequiredArgsConstructor;
+import org.modelmapper.ModelMapper;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 
@@ -14,6 +16,13 @@ import java.util.List;
 public class UserService {
 
     private final UserRepository userRepository;
+    private final ModelMapper modelMapper;
+
+    @Transactional
+    public void addUser(final AddUserRequest addUserRequest) {
+        final User user = modelMapper.map(addUserRequest, User.class);
+        userRepository.save(user);
+    }
 
     @Transactional
     public void disableUser(final User user) {

src/test/java/com/mangkyu/employment/interview/app/user/controller/UserControllerTest.java

@@ -0,0 +1,98 @@
+package com.mangkyu.employment.interview.app.user.controller;
+
+import com.google.gson.Gson;
+import com.mangkyu.employment.interview.app.quiz.enums.QuizLevel;
+import com.mangkyu.employment.interview.app.user.dto.AddUserRequest;
+import com.mangkyu.employment.interview.app.user.service.UserService;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.InjectMocks;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+import org.springframework.http.MediaType;
+import org.springframework.test.web.servlet.MockMvc;
+import org.springframework.test.web.servlet.ResultActions;
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders;
+import org.springframework.test.web.servlet.setup.MockMvcBuilders;
+
+import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
+
+@ExtendWith(MockitoExtension.class)
+class UserControllerTest {
+
+    @InjectMocks
+    private UserController target;
+
+    @Mock
+    private UserService userService;
+
+    private MockMvc mockMvc;
+
+    @BeforeEach
+    public void init() {
+        mockMvc = MockMvcBuilders.standaloneSetup(target).build();
+    }
+
+    @Test
+    public void addUserFail_EmailIsEmpty() throws Exception {
+        // given
+        final AddUserRequest addUserRequest = AddUserRequest.builder()
+                .email("")
+                .quizLevel(QuizLevel.JUNIOR)
+                .build();
+
+        // when
+        final ResultActions result = mockMvc.perform(
+                MockMvcRequestBuilders.post("/user")
+                        .content(new Gson().toJson(addUserRequest))
+                        .contentType(MediaType.APPLICATION_JSON)
+        );
+
+        // then
+        result.andExpect(status().isBadRequest());
+    }
+
+    @Test
+    public void addUserFail_QuizLevelIsNull() throws Exception {
+        // given
+        final AddUserRequest addUserRequest = AddUserRequest.builder()
+                .email("whalsrb1226@gmail.com")
+                .quizLevel(null)
+                .build();
+
+        // when
+        final ResultActions result = mockMvc.perform(
+                MockMvcRequestBuilders.post("/user")
+                        .content(new Gson().toJson(addUserRequest))
+                        .contentType(MediaType.APPLICATION_JSON)
+        );
+
+        // then
+        result.andExpect(status().isBadRequest());
+
+    }
+
+    @Test
+    public void addUserSuccess() throws Exception {
+        // given
+        final AddUserRequest addUserRequest = AddUserRequest.builder()
+                .email("whalsrb1226@gmail.com")
+                .quizLevel(QuizLevel.JUNIOR)
+                .build();
+
+        // when
+        final ResultActions result = mockMvc.perform(
+                MockMvcRequestBuilders.post("/user")
+                        .content(new Gson().toJson(addUserRequest))
+                        .contentType(MediaType.APPLICATION_JSON)
+        );
+
+        // then
+        result.andExpect(status().isCreated());
+
+        // then
+
+    }
+
+}

src/test/java/com/mangkyu/employment/interview/app/user/service/UserServiceTest.java

@@ -1,13 +1,18 @@
 package com.mangkyu.employment.interview.app.user.service;
 
 import com.mangkyu.employment.interview.app.quiz.enums.QuizLevel;
+import com.mangkyu.employment.interview.app.user.dto.AddUserRequest;
 import com.mangkyu.employment.interview.app.user.entity.User;
 import com.mangkyu.employment.interview.app.user.repository.UserRepository;
+import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.ExtendWith;
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
+import org.mockito.Spy;
 import org.mockito.junit.jupiter.MockitoExtension;
+import org.modelmapper.ModelMapper;
+import org.modelmapper.config.Configuration;
 
 import java.util.Arrays;
 import java.util.List;
@@ -23,6 +28,29 @@ class UserServiceTest {
 
     @Mock
     private UserRepository userRepository;
+    @Spy
+    private ModelMapper modelMapper;
+
+    @BeforeEach
+    public void init() {
+        modelMapper.getConfiguration()
+                .setFieldAccessLevel(Configuration.AccessLevel.PRIVATE)
+                .setFieldMatchingEnabled(true);
+    }
+
+    @Test
+    public void addUserSuccess() {
+        // given
+        final AddUserRequest addUserRequest = AddUserRequest.builder()
+                .email("whalsrb1226@gmail.com")
+                .quizLevel(QuizLevel.JUNIOR)
+                .build();
+
+        // when
+        target.addUser(addUserRequest);
+
+        // then
+    }
 
     @Test
     public void disableUserSuccess() {