clean: Article to Post in domain and related use cases

Renamed the 'Article' domain to 'Post' in order to better reflect the purpose and utility of the object. The change involved renaming all related use cases, classes, and other references from 'Article' to 'Post' and updating all functions and data types to work with Posts instead of Articles.

test/post_test.go

@@ -0,0 +1,144 @@
+package test
+
+import (
+	"GohCMS2/domain/post"
+	"bytes"
+	"encoding/json"
+	"github.com/stretchr/testify/assert"
+	"io"
+	"net/http"
+	"strconv"
+	"testing"
+)
+
+var TestCreatePostSuccess = func(t *testing.T) {
+	jsonBody, err := json.Marshal(map[string]string{
+		"title": "Test Title",
+		"body":  "Test Body",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	r, _ := ApiRequest("POST", "/post", bytes.NewBuffer(jsonBody))
+
+	var response post.Post
+	bd, err := io.ReadAll(r.Body)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = json.Unmarshal(bd, &response)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	assert.Equal(t, http.StatusOK, r.StatusCode)
+	assert.Equal(t, "Test Title", response.Title)
+	assert.Equal(t, "Test Body", response.Body)
+}
+
+var TestCreatePostFailTitleMissing = func(t *testing.T) {
+	jsonBody, err := json.Marshal(map[string]string{
+		"body": "Test Body",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	r, _ := ApiRequest("POST", "/post", bytes.NewBuffer(jsonBody))
+
+	assert.Equal(t, http.StatusBadRequest, r.StatusCode)
+}
+
+var TestCreatePostTitleTooShort = func(t *testing.T) {
+	jsonBody, err := json.Marshal(map[string]string{
+		"title": "Te",
+		"body":  "Test Body",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	r, _ := ApiRequest("POST", "/post", bytes.NewBuffer(jsonBody))
+
+	assert.Equal(t, http.StatusBadRequest, r.StatusCode)
+}
+
+var TestGetPostSuccess = func(t *testing.T) {
+	var createdPost post.Post
+	var articleToCreate = post.Post{
+		Title: "Test Title",
+		Body:  "Test Body",
+	}
+	db := GetDb()
+	db.Create(&articleToCreate).Scan(&createdPost)
+
+	r, _ := ApiRequest("GET", "/post/"+strconv.Itoa(int(createdPost.ID)), nil)
+
+	var response post.Post
+	bd, err := io.ReadAll(r.Body)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = json.Unmarshal(bd, &response)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	assert.Equal(t, http.StatusOK, r.StatusCode)
+	assert.Equal(t, createdPost.ID, response.ID)
+	assert.Equal(t, createdPost.Title, response.Title)
+	assert.Equal(t, createdPost.Body, response.Body)
+}
+
+var TestGetAllPostsSuccess = func(t *testing.T) {
+	var createdPost post.Post
+	var articleToCreate = post.Post{
+		Title: "Test Title",
+		Body:  "Test Body",
+	}
+	db := GetDb()
+	db.Create(&articleToCreate).Scan(&createdPost)
+
+	r, _ := ApiRequest("GET", "/post", nil)
+
+	var response []post.Post
+	bd, err := io.ReadAll(r.Body)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	err = json.Unmarshal(bd, &response)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	assert.Equal(t, http.StatusOK, r.StatusCode)
+	assert.Equal(t, createdPost.Title, response[0].Title)
+	assert.Equal(t, createdPost.Body, response[0].Body)
+}
+
+var TestPostCreate = func(t *testing.T) {
+	t.Run("Should return an post with the given title and body", TestCreatePostSuccess)
+	t.Run("Should return an error if the title is missing", TestCreatePostFailTitleMissing)
+	t.Run("Should return an error if the title is too short", TestCreatePostTitleTooShort)
+}
+
+var TestPostGet = func(t *testing.T) {
+	t.Run("Should return an post with the given id", TestGetPostSuccess)
+}
+
+var TestPostGetAll = func(t *testing.T) {
+	t.Run("Should return all articles", TestGetAllPostsSuccess)
+}
+
+func TestPost(t *testing.T) {
+	StartServerIfNotAlready()
+	WaitForServer()
+
+	t.Run("Create", TestPostCreate)
+	t.Run("Get", TestPostGet)
+	t.Run("GetAll", TestPostGetAll)
+}