add test data generator

Signed-off-by: Kirill Mokevnin <[email protected]>

src/main/java/io/hexlet/blog/Application.java

@@ -6,6 +6,7 @@
 import org.springframework.context.annotation.Bean;
 
 import lombok.AllArgsConstructor;
+import net.datafaker.Faker;
 
 @SpringBootApplication
 @AllArgsConstructor
@@ -18,4 +19,9 @@ public static void main(String[] args) {
     public ModelMapper getModelMapper() {
         return new ModelMapper();
     }
+
+    @Bean
+    public Faker getFaker() {
+        return new Faker();
+    }
 }

src/main/java/io/hexlet/blog/controller/api/PostsController.java

@@ -40,6 +40,7 @@ public class PostsController {
     private UserUtils userUtils;
 
     @GetMapping("/posts")
+    @ResponseStatus(HttpStatus.OK)
     ResponseEntity<List<PostDTO>> index() {
         var posts = repository.findAll();
         var result = posts.stream()
@@ -65,6 +66,7 @@ PostDTO create(@Valid @RequestBody Post postData) throws JsonProcessingException
     }
 
     @GetMapping("/posts/{id}")
+    @ResponseStatus(HttpStatus.OK)
     PostDTO show(@PathVariable Long id) {
         var post = repository.findById(id)
         .orElseThrow(() -> new ResourceNotFoundException("Not Found: " + id));
@@ -73,6 +75,7 @@ PostDTO show(@PathVariable Long id) {
     }
 
     @PutMapping("/posts/{id}")
+    @ResponseStatus(HttpStatus.OK)
     void update(@RequestBody @Valid Post postData, @PathVariable Long id) {
         var post = repository.findById(id)
         .orElseThrow(() -> new ResourceNotFoundException("Not Found"));
@@ -81,6 +84,7 @@ void update(@RequestBody @Valid Post postData, @PathVariable Long id) {
     }
 
     @DeleteMapping("/posts/{id}")
+    @ResponseStatus(HttpStatus.NO_CONTENT)
     void delete(@PathVariable Long id) {
         repository.deleteById(id);
     }

src/test/java/io/hexlet/blog/controller/api/PostsControllerTest.java

@@ -22,6 +22,7 @@
 
 import io.hexlet.blog.model.Post;
 import io.hexlet.blog.repository.PostRepository;
+import io.hexlet.blog.util.ModelGenerator;
 import io.hexlet.blog.util.UserUtils;
 
 @SpringBootTest
@@ -34,6 +35,9 @@ public class PostsControllerTest {
     @Autowired
     private ObjectMapper om;
 
+    @Autowired
+    private ModelGenerator modelGenerator;
+
     @Autowired
     private PostRepository postRepository;
 
@@ -45,6 +49,10 @@ public class PostsControllerTest {
     @BeforeEach
     public void setUp() {
         token = jwt().jwt(builder -> builder.subject("[email protected]"));
+        var testPost = Instancio.of(modelGenerator.getPostModel())
+                .create();
+        testPost.setAuthor(userUtils.getTestUser());
+        postRepository.save(testPost);
     }
 
     @Test
@@ -58,8 +66,7 @@ public void testIndex() throws Exception {
 
     @Test
     public void testCreate() throws Exception {
-        var data = Instancio.of(Post.class)
-                .ignore(field(Post.class, "id"))
+        var data = Instancio.of(modelGenerator.getPostModel())
                 .create();
 
         var request = post("/api/posts")
@@ -68,16 +75,15 @@ public void testCreate() throws Exception {
                 .content(om.writeValueAsString(data));
 
         mockMvc.perform(request)
-                .andExpect(status().isOk());
+                .andExpect(status().isCreated());
 
         var post = postRepository.findBySlug(data.getSlug());
         assertNotNull(post.get());
     }
 
     @Test
     public void testShow() throws Exception {
-        var post = Instancio.of(Post.class)
-                .ignore(field(Post.class, "id"))
+        var post = Instancio.of(modelGenerator.getPostModel())
                 .create();
         post.setAuthor(userUtils.getTestUser());
         postRepository.save(post);

src/test/java/io/hexlet/blog/util/ModelGenerator.java

@@ -0,0 +1,31 @@
+package io.hexlet.blog.util;
+
+import org.instancio.Instancio;
+import org.instancio.Model;
+import org.instancio.Select;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import io.hexlet.blog.model.Post;
+import jakarta.annotation.PostConstruct;
+import lombok.Getter;
+import net.datafaker.Faker;
+
+@Getter
+@Component
+public class ModelGenerator {
+    private Model<Post> postModel;
+
+    @Autowired
+    private Faker faker;
+
+    @PostConstruct
+    private void init() {
+        postModel = Instancio.of(Post.class)
+                .ignore(Select.field(Post::getId))
+                .supply(Select.field(Post::getName), () -> faker.gameOfThrones().house())
+                .supply(Select.field(Post::getBody), () -> faker.gameOfThrones().quote())
+                .toModel();
+    }
+}
+