diff --git a/internal/integration/complete_api_endpoints_integration_test.go b/internal/integration/complete_api_endpoints_integration_test.go
index b2a53b8..55713ee 100644
--- a/internal/integration/complete_api_endpoints_integration_test.go
+++ b/internal/integration/complete_api_endpoints_integration_test.go
@@ -1,15 +1,14 @@
 package integration
 
 import (
-	"bytes"
-	"encoding/json"
 	"fmt"
 	"net/http"
-	"net/http/httptest"
 	"net/url"
+	"strings"
 	"testing"
+	"time"
 
-	"goyco/internal/middleware"
+	"goyco/internal/services"
 	"goyco/internal/testutils"
 )
 
@@ -20,17 +19,8 @@ func TestIntegration_CompleteAPIEndpoints(t *testing.T) {
 		ctx.Suite.EmailSender.Reset()
 		user := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, "logout_user", "logout@example.com")
 
-		reqBody := map[string]string{}
-		body, _ := json.Marshal(reqBody)
-		req := httptest.NewRequest("POST", "/api/auth/logout", bytes.NewBuffer(body))
-		req.Header.Set("Content-Type", "application/json")
-		req.Header.Set("Authorization", "Bearer "+user.Token)
-		req = testutils.WithUserContext(req, middleware.UserIDKey, user.User.ID)
-		rec := httptest.NewRecorder()
-
-		ctx.Router.ServeHTTP(rec, req)
-
-		assertStatus(t, rec, http.StatusOK)
+		request := makePostRequest(t, ctx.Router, "/api/auth/logout", map[string]any{}, user, nil)
+		assertStatus(t, request, http.StatusOK)
 	})
 
 	t.Run("Auth_Revoke_Token_Endpoint", func(t *testing.T) {
@@ -42,52 +32,23 @@ func TestIntegration_CompleteAPIEndpoints(t *testing.T) {
 			t.Fatalf("Failed to login: %v", err)
 		}
 
-		reqBody := map[string]string{
-			"refresh_token": loginResult.RefreshToken,
-		}
-		body, _ := json.Marshal(reqBody)
-		req := httptest.NewRequest("POST", "/api/auth/revoke", bytes.NewBuffer(body))
-		req.Header.Set("Content-Type", "application/json")
-		req.Header.Set("Authorization", "Bearer "+user.Token)
-		req = testutils.WithUserContext(req, middleware.UserIDKey, user.User.ID)
-		rec := httptest.NewRecorder()
-
-		ctx.Router.ServeHTTP(rec, req)
-
-		assertStatus(t, rec, http.StatusOK)
+		request := makePostRequest(t, ctx.Router, "/api/auth/revoke", map[string]any{"refresh_token": loginResult.RefreshToken}, user, nil)
+		assertStatus(t, request, http.StatusOK)
 	})
 
 	t.Run("Auth_Revoke_All_Tokens_Endpoint", func(t *testing.T) {
 		ctx.Suite.EmailSender.Reset()
 		user := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, "revoke_all_user", "revoke_all@example.com")
 
-		reqBody := map[string]string{}
-		body, _ := json.Marshal(reqBody)
-		req := httptest.NewRequest("POST", "/api/auth/revoke-all", bytes.NewBuffer(body))
-		req.Header.Set("Content-Type", "application/json")
-		req.Header.Set("Authorization", "Bearer "+user.Token)
-		req = testutils.WithUserContext(req, middleware.UserIDKey, user.User.ID)
-		rec := httptest.NewRecorder()
-
-		ctx.Router.ServeHTTP(rec, req)
-
-		assertStatus(t, rec, http.StatusOK)
+		request := makePostRequest(t, ctx.Router, "/api/auth/revoke-all", map[string]any{}, user, nil)
+		assertStatus(t, request, http.StatusOK)
 	})
 
 	t.Run("Auth_Resend_Verification_Endpoint", func(t *testing.T) {
 		ctx.Suite.EmailSender.Reset()
 
-		reqBody := map[string]string{
-			"email": "resend@example.com",
-		}
-		body, _ := json.Marshal(reqBody)
-		req := httptest.NewRequest("POST", "/api/auth/resend-verification", bytes.NewBuffer(body))
-		req.Header.Set("Content-Type", "application/json")
-		rec := httptest.NewRecorder()
-
-		ctx.Router.ServeHTTP(rec, req)
-
-		assertStatusRange(t, rec, http.StatusOK, http.StatusNotFound)
+		request := makePostRequestWithJSON(t, ctx.Router, "/api/auth/resend-verification", map[string]any{"email": "resend@example.com"})
+		assertStatusRange(t, request, http.StatusOK, http.StatusNotFound)
 	})
 
 	t.Run("Auth_Confirm_Email_Endpoint", func(t *testing.T) {
@@ -99,36 +60,20 @@ func TestIntegration_CompleteAPIEndpoints(t *testing.T) {
 			token = "test-token"
 		}
 
-		req := httptest.NewRequest("GET", "/api/auth/confirm?token="+url.QueryEscape(token), nil)
-		rec := httptest.NewRecorder()
-
-		ctx.Router.ServeHTTP(rec, req)
-
-		assertStatusRange(t, rec, http.StatusOK, http.StatusBadRequest)
+		request := makeGetRequest(t, ctx.Router, "/api/auth/confirm?token="+url.QueryEscape(token))
+		assertStatusRange(t, request, http.StatusOK, http.StatusBadRequest)
 	})
 
 	t.Run("Auth_Update_Email_Endpoint", func(t *testing.T) {
 		ctx.Suite.EmailSender.Reset()
 		user := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, "update_email_api_user", "update_email_api@example.com")
 
-		reqBody := map[string]string{
-			"email": "newemail@example.com",
-		}
-		body, _ := json.Marshal(reqBody)
-		req := httptest.NewRequest("PUT", "/api/auth/email", bytes.NewBuffer(body))
-		req.Header.Set("Content-Type", "application/json")
-		req.Header.Set("Authorization", "Bearer "+user.Token)
-		req = testutils.WithUserContext(req, middleware.UserIDKey, user.User.ID)
-		rec := httptest.NewRecorder()
+		request := makePutRequest(t, ctx.Router, "/api/auth/email", map[string]any{"email": "newemail@example.com"}, user, nil)
 
-		ctx.Router.ServeHTTP(rec, req)
-
-		response := assertJSONResponse(t, rec, http.StatusOK)
-		if response != nil {
-			if data, ok := response["data"].(map[string]any); ok {
-				if email, ok := data["email"].(string); ok && email != "newemail@example.com" {
-					t.Errorf("Expected email to be updated, got %s", email)
-				}
+		response := assertJSONResponse(t, request, http.StatusOK)
+		if data, ok := getDataFromResponse(response); ok {
+			if email, ok := data["email"].(string); ok && email != "newemail@example.com" {
+				t.Errorf("Expected email to be updated, got %s", email)
 			}
 		}
 	})
@@ -137,24 +82,12 @@ func TestIntegration_CompleteAPIEndpoints(t *testing.T) {
 		ctx.Suite.EmailSender.Reset()
 		user := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, "update_username_api_user", "update_username_api@example.com")
 
-		reqBody := map[string]string{
-			"username": "new_username",
-		}
-		body, _ := json.Marshal(reqBody)
-		req := httptest.NewRequest("PUT", "/api/auth/username", bytes.NewBuffer(body))
-		req.Header.Set("Content-Type", "application/json")
-		req.Header.Set("Authorization", "Bearer "+user.Token)
-		req = testutils.WithUserContext(req, middleware.UserIDKey, user.User.ID)
-		rec := httptest.NewRecorder()
+		request := makePutRequest(t, ctx.Router, "/api/auth/username", map[string]any{"username": "new_username"}, user, nil)
 
-		ctx.Router.ServeHTTP(rec, req)
-
-		response := assertJSONResponse(t, rec, http.StatusOK)
-		if response != nil {
-			if data, ok := response["data"].(map[string]any); ok {
-				if username, ok := data["username"].(string); ok && username != "new_username" {
-					t.Errorf("Expected username to be updated, got %s", username)
-				}
+		response := assertJSONResponse(t, request, http.StatusOK)
+		if data, ok := getDataFromResponse(response); ok {
+			if username, ok := data["username"].(string); ok && username != "new_username" {
+				t.Errorf("Expected username to be updated, got %s", username)
 			}
 		}
 	})
@@ -163,19 +96,12 @@ func TestIntegration_CompleteAPIEndpoints(t *testing.T) {
 		ctx.Suite.EmailSender.Reset()
 		user := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, "users_list_user", "users_list@example.com")
 
-		req := httptest.NewRequest("GET", "/api/users", nil)
-		req.Header.Set("Authorization", "Bearer "+user.Token)
-		req = testutils.WithUserContext(req, middleware.UserIDKey, user.User.ID)
-		rec := httptest.NewRecorder()
+		request := makeAuthenticatedGetRequest(t, ctx.Router, "/api/users", user, nil)
 
-		ctx.Router.ServeHTTP(rec, req)
-
-		response := assertJSONResponse(t, rec, http.StatusOK)
-		if response != nil {
-			if data, ok := response["data"].(map[string]any); ok {
-				if _, exists := data["users"]; !exists {
-					t.Error("Expected users in response")
-				}
+		response := assertJSONResponse(t, request, http.StatusOK)
+		if data, ok := getDataFromResponse(response); ok {
+			if _, exists := data["users"]; !exists {
+				t.Error("Expected users in response")
 			}
 		}
 	})
@@ -184,21 +110,13 @@ func TestIntegration_CompleteAPIEndpoints(t *testing.T) {
 		ctx.Suite.EmailSender.Reset()
 		user := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, "users_get_user", "users_get@example.com")
 
-		req := httptest.NewRequest("GET", fmt.Sprintf("/api/users/%d", user.User.ID), nil)
-		req.Header.Set("Authorization", "Bearer "+user.Token)
-		req = testutils.WithUserContext(req, middleware.UserIDKey, user.User.ID)
-		req = testutils.WithURLParams(req, map[string]string{"id": fmt.Sprintf("%d", user.User.ID)})
-		rec := httptest.NewRecorder()
+		request := makeAuthenticatedGetRequest(t, ctx.Router, fmt.Sprintf("/api/users/%d", user.User.ID), user, map[string]string{"id": fmt.Sprintf("%d", user.User.ID)})
 
-		ctx.Router.ServeHTTP(rec, req)
-
-		response := assertJSONResponse(t, rec, http.StatusOK)
-		if response != nil {
-			if data, ok := response["data"].(map[string]any); ok {
-				if userData, ok := data["user"].(map[string]any); ok {
-					if id, ok := userData["id"].(float64); ok && uint(id) != user.User.ID {
-						t.Errorf("Expected user ID %d, got %.0f", user.User.ID, id)
-					}
+		response := assertJSONResponse(t, request, http.StatusOK)
+		if data, ok := getDataFromResponse(response); ok {
+			if userData, ok := data["user"].(map[string]any); ok {
+				if id, ok := userData["id"].(float64); ok && uint(id) != user.User.ID {
+					t.Errorf("Expected user ID %d, got %.0f", user.User.ID, id)
 				}
 			}
 		}
@@ -210,24 +128,16 @@ func TestIntegration_CompleteAPIEndpoints(t *testing.T) {
 
 		testutils.CreatePostWithRepo(t, ctx.Suite.PostRepo, user.User.ID, "User Posts Test", "https://example.com/user-posts")
 
-		req := httptest.NewRequest("GET", fmt.Sprintf("/api/users/%d/posts", user.User.ID), nil)
-		req.Header.Set("Authorization", "Bearer "+user.Token)
-		req = testutils.WithUserContext(req, middleware.UserIDKey, user.User.ID)
-		req = testutils.WithURLParams(req, map[string]string{"id": fmt.Sprintf("%d", user.User.ID)})
-		rec := httptest.NewRecorder()
+		request := makeAuthenticatedGetRequest(t, ctx.Router, fmt.Sprintf("/api/users/%d/posts", user.User.ID), user, map[string]string{"id": fmt.Sprintf("%d", user.User.ID)})
 
-		ctx.Router.ServeHTTP(rec, req)
-
-		response := assertJSONResponse(t, rec, http.StatusOK)
-		if response != nil {
-			if data, ok := response["data"].(map[string]any); ok {
-				if posts, ok := data["posts"].([]any); ok {
-					if len(posts) == 0 {
-						t.Error("Expected at least one post in response")
-					}
-				} else {
-					t.Error("Expected posts array in response")
+		response := assertJSONResponse(t, request, http.StatusOK)
+		if data, ok := getDataFromResponse(response); ok {
+			if posts, ok := data["posts"].([]any); ok {
+				if len(posts) == 0 {
+					t.Error("Expected at least one post in response")
 				}
+			} else {
+				t.Error("Expected posts array in response")
 			}
 		}
 	})
@@ -236,26 +146,16 @@ func TestIntegration_CompleteAPIEndpoints(t *testing.T) {
 		ctx.Suite.EmailSender.Reset()
 		user := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, "users_create_admin", "users_create_admin@example.com")
 
-		reqBody := map[string]string{
+		request := makePostRequest(t, ctx.Router, "/api/users", map[string]any{
 			"username": "created_user",
 			"email":    "created@example.com",
 			"password": "SecurePass123!",
-		}
-		body, _ := json.Marshal(reqBody)
-		req := httptest.NewRequest("POST", "/api/users", bytes.NewBuffer(body))
-		req.Header.Set("Content-Type", "application/json")
-		req.Header.Set("Authorization", "Bearer "+user.Token)
-		req = testutils.WithUserContext(req, middleware.UserIDKey, user.User.ID)
-		rec := httptest.NewRecorder()
+		}, user, nil)
 
-		ctx.Router.ServeHTTP(rec, req)
-
-		response := assertJSONResponse(t, rec, http.StatusCreated)
-		if response != nil {
-			if data, ok := response["data"].(map[string]any); ok {
-				if _, exists := data["user"]; !exists {
-					t.Error("Expected user in response")
-				}
+		response := assertJSONResponse(t, request, http.StatusCreated)
+		if data, ok := getDataFromResponse(response); ok {
+			if _, exists := data["user"]; !exists {
+				t.Error("Expected user in response")
 			}
 		}
 	})
@@ -266,27 +166,16 @@ func TestIntegration_CompleteAPIEndpoints(t *testing.T) {
 
 		post := testutils.CreatePostWithRepo(t, ctx.Suite.PostRepo, user.User.ID, "Update Test Post", "https://example.com/update-test")
 
-		reqBody := map[string]string{
+		request := makePutRequest(t, ctx.Router, fmt.Sprintf("/api/posts/%d", post.ID), map[string]any{
 			"title":   "Updated Title",
 			"content": "Updated content",
-		}
-		body, _ := json.Marshal(reqBody)
-		req := httptest.NewRequest("PUT", fmt.Sprintf("/api/posts/%d", post.ID), bytes.NewBuffer(body))
-		req.Header.Set("Content-Type", "application/json")
-		req.Header.Set("Authorization", "Bearer "+user.Token)
-		req = testutils.WithUserContext(req, middleware.UserIDKey, user.User.ID)
-		req = testutils.WithURLParams(req, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
-		rec := httptest.NewRecorder()
+		}, user, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
 
-		ctx.Router.ServeHTTP(rec, req)
-
-		response := assertJSONResponse(t, rec, http.StatusOK)
-		if response != nil {
-			if data, ok := response["data"].(map[string]any); ok {
-				if postData, ok := data["post"].(map[string]any); ok {
-					if title, ok := postData["title"].(string); ok && title != "Updated Title" {
-						t.Errorf("Expected title 'Updated Title', got '%s'", title)
-					}
+		response := assertJSONResponse(t, request, http.StatusOK)
+		if data, ok := getDataFromResponse(response); ok {
+			if postData, ok := data["post"].(map[string]any); ok {
+				if title, ok := postData["title"].(string); ok && title != "Updated Title" {
+					t.Errorf("Expected title 'Updated Title', got '%s'", title)
 				}
 			}
 		}
@@ -298,20 +187,11 @@ func TestIntegration_CompleteAPIEndpoints(t *testing.T) {
 
 		post := testutils.CreatePostWithRepo(t, ctx.Suite.PostRepo, user.User.ID, "Delete Test Post", "https://example.com/delete-test")
 
-		req := httptest.NewRequest("DELETE", fmt.Sprintf("/api/posts/%d", post.ID), nil)
-		req.Header.Set("Authorization", "Bearer "+user.Token)
-		req = testutils.WithUserContext(req, middleware.UserIDKey, user.User.ID)
-		req = testutils.WithURLParams(req, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
-		rec := httptest.NewRecorder()
+		request := makeDeleteRequest(t, ctx.Router, fmt.Sprintf("/api/posts/%d", post.ID), user, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
+		assertStatus(t, request, http.StatusOK)
 
-		ctx.Router.ServeHTTP(rec, req)
-
-		assertStatus(t, rec, http.StatusOK)
-
-		getReq := httptest.NewRequest("GET", fmt.Sprintf("/api/posts/%d", post.ID), nil)
-		getRec := httptest.NewRecorder()
-		ctx.Router.ServeHTTP(getRec, getReq)
-		assertStatus(t, getRec, http.StatusNotFound)
+		getRequest := makeGetRequest(t, ctx.Router, fmt.Sprintf("/api/posts/%d", post.ID))
+		assertStatus(t, getRequest, http.StatusNotFound)
 	})
 
 	t.Run("Votes_Get_All_Endpoint", func(t *testing.T) {
@@ -319,35 +199,17 @@ func TestIntegration_CompleteAPIEndpoints(t *testing.T) {
 		user := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, "votes_get_all_user", "votes_get_all@example.com")
 
 		post := testutils.CreatePostWithRepo(t, ctx.Suite.PostRepo, user.User.ID, "Votes Test Post", "https://example.com/votes-test")
+		makePostRequest(t, ctx.Router, fmt.Sprintf("/api/posts/%d/vote", post.ID), map[string]any{"type": "up"}, user, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
+		request := makeAuthenticatedGetRequest(t, ctx.Router, fmt.Sprintf("/api/posts/%d/votes", post.ID), user, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
 
-		voteBody := map[string]string{"type": "up"}
-		voteBodyBytes, _ := json.Marshal(voteBody)
-		voteReq := httptest.NewRequest("POST", fmt.Sprintf("/api/posts/%d/vote", post.ID), bytes.NewBuffer(voteBodyBytes))
-		voteReq.Header.Set("Content-Type", "application/json")
-		voteReq.Header.Set("Authorization", "Bearer "+user.Token)
-		voteReq = testutils.WithUserContext(voteReq, middleware.UserIDKey, user.User.ID)
-		voteReq = testutils.WithURLParams(voteReq, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
-		voteRec := httptest.NewRecorder()
-		ctx.Router.ServeHTTP(voteRec, voteReq)
-
-		req := httptest.NewRequest("GET", fmt.Sprintf("/api/posts/%d/votes", post.ID), nil)
-		req.Header.Set("Authorization", "Bearer "+user.Token)
-		req = testutils.WithUserContext(req, middleware.UserIDKey, user.User.ID)
-		req = testutils.WithURLParams(req, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
-		rec := httptest.NewRecorder()
-
-		ctx.Router.ServeHTTP(rec, req)
-
-		response := assertJSONResponse(t, rec, http.StatusOK)
-		if response != nil {
-			if data, ok := response["data"].(map[string]any); ok {
-				if votes, ok := data["votes"].([]any); ok {
-					if len(votes) == 0 {
-						t.Error("Expected at least one vote in response")
-					}
-				} else {
-					t.Error("Expected votes array in response")
+		response := assertJSONResponse(t, request, http.StatusOK)
+		if data, ok := getDataFromResponse(response); ok {
+			if votes, ok := data["votes"].([]any); ok {
+				if len(votes) == 0 {
+					t.Error("Expected at least one vote in response")
 				}
+			} else {
+				t.Error("Expected votes array in response")
 			}
 		}
 	})
@@ -358,49 +220,461 @@ func TestIntegration_CompleteAPIEndpoints(t *testing.T) {
 
 		post := testutils.CreatePostWithRepo(t, ctx.Suite.PostRepo, user.User.ID, "Vote Remove Test", "https://example.com/vote-remove")
 
-		voteBody := map[string]string{"type": "up"}
-		voteBodyBytes, _ := json.Marshal(voteBody)
-		voteReq := httptest.NewRequest("POST", fmt.Sprintf("/api/posts/%d/vote", post.ID), bytes.NewBuffer(voteBodyBytes))
-		voteReq.Header.Set("Content-Type", "application/json")
-		voteReq.Header.Set("Authorization", "Bearer "+user.Token)
-		voteReq = testutils.WithUserContext(voteReq, middleware.UserIDKey, user.User.ID)
-		voteReq = testutils.WithURLParams(voteReq, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
-		voteRec := httptest.NewRecorder()
-		ctx.Router.ServeHTTP(voteRec, voteReq)
+		makePostRequest(t, ctx.Router, fmt.Sprintf("/api/posts/%d/vote", post.ID), map[string]any{"type": "up"}, user, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
 
-		req := httptest.NewRequest("DELETE", fmt.Sprintf("/api/posts/%d/vote", post.ID), nil)
-		req.Header.Set("Authorization", "Bearer "+user.Token)
-		req = testutils.WithUserContext(req, middleware.UserIDKey, user.User.ID)
-		req = testutils.WithURLParams(req, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
-		rec := httptest.NewRecorder()
-
-		ctx.Router.ServeHTTP(rec, req)
-
-		assertStatus(t, rec, http.StatusOK)
+		request := makeDeleteRequest(t, ctx.Router, fmt.Sprintf("/api/posts/%d/vote", post.ID), user, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
+		assertStatus(t, request, http.StatusOK)
 	})
 
 	t.Run("API_Info_Endpoint", func(t *testing.T) {
-		req := httptest.NewRequest("GET", "/api", nil)
-		rec := httptest.NewRecorder()
+		request := makeGetRequest(t, ctx.Router, "/api")
 
-		ctx.Router.ServeHTTP(rec, req)
-
-		response := assertJSONResponse(t, rec, http.StatusOK)
-		if response != nil {
-			if data, ok := response["data"].(map[string]any); ok {
-				if _, exists := data["endpoints"]; !exists {
-					t.Error("Expected endpoints in API info")
-				}
+		response := assertJSONResponse(t, request, http.StatusOK)
+		if data, ok := getDataFromResponse(response); ok {
+			if _, exists := data["endpoints"]; !exists {
+				t.Error("Expected endpoints in API info")
 			}
 		}
 	})
 
 	t.Run("Swagger_Documentation_Endpoint", func(t *testing.T) {
-		req := httptest.NewRequest("GET", "/swagger/index.html", nil)
-		rec := httptest.NewRecorder()
+		request := makeGetRequest(t, ctx.Router, "/swagger/index.html")
+		assertStatusRange(t, request, http.StatusOK, http.StatusNotFound)
+	})
 
-		ctx.Router.ServeHTTP(rec, req)
+	t.Run("Search_Endpoint_Edge_Cases", func(t *testing.T) {
+		ctx.Suite.EmailSender.Reset()
+		user := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, uniqueTestUsername(t, "search_edge"), uniqueTestEmail(t, "search_edge"))
 
-		assertStatusRange(t, rec, http.StatusOK, http.StatusNotFound)
+		testutils.CreatePostWithRepo(t, ctx.Suite.PostRepo, user.User.ID, "Searchable Post One", "https://example.com/one")
+		testutils.CreatePostWithRepo(t, ctx.Suite.PostRepo, user.User.ID, "Searchable Post Two", "https://example.com/two")
+		testutils.CreatePostWithRepo(t, ctx.Suite.PostRepo, user.User.ID, "Different Content", "https://example.com/three")
+
+		t.Run("Empty_Search_Results", func(t *testing.T) {
+			request := makeGetRequest(t, ctx.Router, "/api/posts/search?q=nonexistentterm12345")
+
+			response := assertJSONResponse(t, request, http.StatusOK)
+			if data, ok := getDataFromResponse(response); ok {
+				if posts, ok := data["posts"].([]any); ok {
+					if len(posts) != 0 {
+						t.Errorf("Expected empty search results, got %d posts", len(posts))
+					}
+				}
+				if count, ok := data["count"].(float64); ok && count != 0 {
+					t.Errorf("Expected count 0, got %.0f", count)
+				}
+			}
+		})
+
+		t.Run("Search_With_Pagination", func(t *testing.T) {
+			request := makeGetRequest(t, ctx.Router, "/api/posts/search?q=Searchable&limit=1&offset=0")
+
+			response := assertJSONResponse(t, request, http.StatusOK)
+			var firstPostID any
+			if data, ok := getDataFromResponse(response); ok {
+				if posts, ok := data["posts"].([]any); ok {
+					if len(posts) > 1 {
+						t.Errorf("Expected at most 1 post with limit=1, got %d", len(posts))
+					}
+					if len(posts) > 0 {
+						if post, ok := posts[0].(map[string]any); ok {
+							firstPostID = post["id"]
+						}
+					}
+				}
+				if limit, ok := data["limit"].(float64); ok && limit != 1 {
+					t.Errorf("Expected limit 1 in response, got %.0f", limit)
+				}
+				if offset, ok := data["offset"].(float64); ok && offset != 0 {
+					t.Errorf("Expected offset 0 in response, got %.0f", offset)
+				}
+			}
+
+			rec2 := makeGetRequest(t, ctx.Router, "/api/posts/search?q=Searchable&limit=1&offset=1")
+
+			response2 := assertJSONResponse(t, rec2, http.StatusOK)
+			if data, ok := getDataFromResponse(response2); ok {
+				if posts, ok := data["posts"].([]any); ok {
+					if len(posts) > 1 {
+						t.Errorf("Expected at most 1 post with limit=1 and offset=1, got %d", len(posts))
+					}
+					if len(posts) > 0 && firstPostID != nil {
+						if post, ok := posts[0].(map[string]any); ok {
+							if post["id"] == firstPostID {
+								t.Error("Expected different post with offset=1, got same post as offset=0")
+							}
+						}
+					}
+				}
+			}
+		})
+
+		t.Run("Search_With_Special_Characters", func(t *testing.T) {
+			specialQueries := []string{
+				"Searchable%20Post",
+				"Searchable'Post",
+				"Searchable\"Post",
+				"Searchable;Post",
+				"Searchable--Post",
+			}
+
+			for _, query := range specialQueries {
+				request := makeGetRequest(t, ctx.Router, "/api/posts/search?q="+url.QueryEscape(query))
+				assertStatusRange(t, request, http.StatusOK, http.StatusBadRequest)
+			}
+		})
+
+		t.Run("Search_Empty_Query", func(t *testing.T) {
+			request := makeGetRequest(t, ctx.Router, "/api/posts/search?q=")
+
+			response := assertJSONResponse(t, request, http.StatusOK)
+			if data, ok := getDataFromResponse(response); ok {
+				if posts, ok := data["posts"].([]any); ok {
+					if len(posts) != 0 {
+						t.Errorf("Expected empty results for empty query, got %d posts", len(posts))
+					}
+				}
+				if count, ok := data["count"].(float64); ok && count != 0 {
+					t.Errorf("Expected count 0 for empty query, got %.0f", count)
+				}
+			}
+		})
+
+		t.Run("Search_With_Very_Long_Query", func(t *testing.T) {
+			longQuery := strings.Repeat("a", 1000)
+			request := makeGetRequest(t, ctx.Router, "/api/posts/search?q="+url.QueryEscape(longQuery))
+			assertStatusRange(t, request, http.StatusOK, http.StatusBadRequest)
+		})
+
+		t.Run("Search_Case_Insensitive", func(t *testing.T) {
+			request := makeGetRequest(t, ctx.Router, "/api/posts/search?q=SEARCHABLE")
+
+			response := assertJSONResponse(t, request, http.StatusOK)
+			if data, ok := getDataFromResponse(response); ok {
+				if posts, ok := data["posts"].([]any); ok {
+					if len(posts) == 0 {
+						t.Error("Expected case-insensitive search to find posts")
+					}
+				}
+			}
+		})
+	})
+
+	t.Run("Title_Fetch_Endpoint_Edge_Cases", func(t *testing.T) {
+		ctx.Suite.EmailSender.Reset()
+
+		t.Run("Missing_URL_Parameter", func(t *testing.T) {
+			request := makeGetRequest(t, ctx.Router, "/api/posts/title")
+			assertErrorResponse(t, request, http.StatusBadRequest)
+		})
+
+		t.Run("Empty_URL_Parameter", func(t *testing.T) {
+			request := makeGetRequest(t, ctx.Router, "/api/posts/title?url=")
+			assertErrorResponse(t, request, http.StatusBadRequest)
+		})
+
+		t.Run("Invalid_URL_Format", func(t *testing.T) {
+			invalidURLs := []string{
+				"not-a-url",
+				"://invalid",
+				"http://",
+				"https://",
+			}
+
+			for _, invalidURL := range invalidURLs {
+				ctx.Suite.TitleFetcher.SetError(services.ErrUnsupportedScheme)
+				request := makeGetRequest(t, ctx.Router, "/api/posts/title?url="+url.QueryEscape(invalidURL))
+				assertErrorResponse(t, request, http.StatusBadRequest)
+			}
+		})
+
+		t.Run("Unsupported_URL_Schemes", func(t *testing.T) {
+			unsupportedSchemes := []string{
+				"ftp://example.com",
+				"file:///etc/passwd",
+				"javascript:alert(1)",
+				"data:text/html,<script>alert(1)</script>",
+			}
+
+			for _, schemeURL := range unsupportedSchemes {
+				request := makeGetRequest(t, ctx.Router, "/api/posts/title?url="+url.QueryEscape(schemeURL))
+				assertErrorResponse(t, request, http.StatusBadRequest)
+			}
+		})
+
+		t.Run("SSRF_Protection_Localhost", func(t *testing.T) {
+			ssrfURLs := []string{
+				"http://localhost",
+				"http://127.0.0.1",
+				"http://127.0.0.1:8080",
+				"http://[::1]",
+				"http://0.0.0.0",
+			}
+
+			for _, ssrfURL := range ssrfURLs {
+				ctx.Suite.TitleFetcher.SetError(services.ErrSSRFBlocked)
+				request := makeGetRequest(t, ctx.Router, "/api/posts/title?url="+url.QueryEscape(ssrfURL))
+				assertStatusRange(t, request, http.StatusBadRequest, http.StatusBadGateway)
+			}
+		})
+
+		t.Run("SSRF_Protection_Private_IPs", func(t *testing.T) {
+			privateIPs := []string{
+				"http://192.168.1.1",
+				"http://10.0.0.1",
+				"http://172.16.0.1",
+			}
+
+			for _, privateIP := range privateIPs {
+				ctx.Suite.TitleFetcher.SetError(services.ErrSSRFBlocked)
+				request := makeGetRequest(t, ctx.Router, "/api/posts/title?url="+url.QueryEscape(privateIP))
+				assertStatusRange(t, request, http.StatusBadRequest, http.StatusBadGateway)
+			}
+		})
+
+		t.Run("Title_Fetch_Error_Handling", func(t *testing.T) {
+			ctx.Suite.TitleFetcher.SetError(services.ErrTitleNotFound)
+
+			request := makeGetRequest(t, ctx.Router, "/api/posts/title?url=https://example.com/notitle")
+			assertErrorResponse(t, request, http.StatusBadRequest)
+		})
+
+		t.Run("Valid_URL_Success", func(t *testing.T) {
+			ctx.Suite.TitleFetcher.SetTitle("Valid Title")
+
+			request := makeGetRequest(t, ctx.Router, "/api/posts/title?url=https://example.com/valid")
+
+			response := assertJSONResponse(t, request, http.StatusOK)
+			if data, ok := getDataFromResponse(response); ok {
+				if title, ok := data["title"].(string); ok {
+					if title != "Valid Title" {
+						t.Errorf("Expected title 'Valid Title', got '%s'", title)
+					}
+				} else {
+					t.Error("Expected title in response data")
+				}
+			}
+		})
+	})
+
+	t.Run("Get_User_Vote_Edge_Cases", func(t *testing.T) {
+		ctx.Suite.EmailSender.Reset()
+		user := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, uniqueTestUsername(t, "vote_edge"), uniqueTestEmail(t, "vote_edge"))
+		secondUser := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, uniqueTestUsername(t, "vote_edge2"), uniqueTestEmail(t, "vote_edge2"))
+
+		post := testutils.CreatePostWithRepo(t, ctx.Suite.PostRepo, user.User.ID, "Vote Edge Test Post", "https://example.com/vote-edge")
+
+		t.Run("Get_Vote_When_User_Has_Voted", func(t *testing.T) {
+			voteRequest := makePostRequest(t, ctx.Router, fmt.Sprintf("/api/posts/%d/vote", post.ID), map[string]any{"type": "up"}, user, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
+			assertStatus(t, voteRequest, http.StatusOK)
+
+			request := makeAuthenticatedGetRequest(t, ctx.Router, fmt.Sprintf("/api/posts/%d/vote", post.ID), user, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
+
+			response := assertJSONResponse(t, request, http.StatusOK)
+			if data, ok := getDataFromResponse(response); ok {
+				if hasVote, ok := data["has_vote"].(bool); !ok || !hasVote {
+					t.Error("Expected has_vote to be true when user has voted")
+				}
+				if vote, ok := data["vote"]; !ok || vote == nil {
+					t.Error("Expected vote object when user has voted")
+				}
+			}
+		})
+
+		t.Run("Get_Vote_When_User_Has_Not_Voted", func(t *testing.T) {
+			request := makeAuthenticatedGetRequest(t, ctx.Router, fmt.Sprintf("/api/posts/%d/vote", post.ID), secondUser, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
+
+			response := assertJSONResponse(t, request, http.StatusOK)
+			if data, ok := getDataFromResponse(response); ok {
+				if hasVote, ok := data["has_vote"].(bool); ok {
+					if hasVote {
+						t.Error("Expected has_vote to be false when user has not voted")
+					}
+				} else {
+					t.Error("Expected has_vote field in response")
+				}
+			}
+		})
+
+		t.Run("Get_Vote_Invalid_Post_ID", func(t *testing.T) {
+			request := makeAuthenticatedGetRequest(t, ctx.Router, "/api/posts/999999/vote", user, map[string]string{"id": "999999"})
+
+			if request.Code != http.StatusOK && request.Code != http.StatusNotFound {
+				t.Errorf("Expected status 200 or 404 for invalid post ID, got %d", request.Code)
+			}
+		})
+
+		t.Run("Get_Vote_Unauthenticated", func(t *testing.T) {
+			request := makeGetRequest(t, ctx.Router, fmt.Sprintf("/api/posts/%d/vote", post.ID))
+			assertErrorResponse(t, request, http.StatusUnauthorized)
+		})
+
+		t.Run("Get_Vote_Response_Structure", func(t *testing.T) {
+			request := makeAuthenticatedGetRequest(t, ctx.Router, fmt.Sprintf("/api/posts/%d/vote", post.ID), user, map[string]string{"id": fmt.Sprintf("%d", post.ID)})
+
+			response := assertJSONResponse(t, request, http.StatusOK)
+			if success, ok := response["success"].(bool); !ok || !success {
+				t.Error("Expected success field to be true")
+			}
+			if data, ok := getDataFromResponse(response); ok {
+				if _, exists := data["has_vote"]; !exists {
+					t.Error("Expected has_vote field in response data")
+				}
+				if _, exists := data["is_anonymous"]; !exists {
+					t.Error("Expected is_anonymous field in response data")
+				}
+			} else {
+				t.Error("Expected data field in response")
+			}
+		})
+	})
+
+	t.Run("Refresh_Token_Edge_Cases", func(t *testing.T) {
+		ctx.Suite.EmailSender.Reset()
+		refreshUser := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, uniqueTestUsername(t, "refresh_edge"), uniqueTestEmail(t, "refresh_edge"))
+
+		t.Run("Refresh_With_Expired_Token", func(t *testing.T) {
+			loginResult, err := ctx.AuthService.Login(refreshUser.User.Username, "SecurePass123!")
+			if err != nil {
+				t.Fatalf("Failed to login: %v", err)
+			}
+
+			refreshToken, err := ctx.Suite.RefreshTokenRepo.GetByTokenHash(testutils.HashVerificationToken(loginResult.RefreshToken))
+			if err != nil {
+				t.Fatalf("Failed to get refresh token: %v", err)
+			}
+
+			refreshToken.ExpiresAt = time.Now().Add(-1 * time.Hour)
+			if err := ctx.Suite.DB.Model(refreshToken).Update("expires_at", refreshToken.ExpiresAt).Error; err != nil {
+				t.Fatalf("Failed to expire refresh token: %v", err)
+			}
+
+			request := makePostRequestWithJSON(t, ctx.Router, "/api/auth/refresh", map[string]any{"refresh_token": loginResult.RefreshToken})
+			assertErrorResponse(t, request, http.StatusUnauthorized)
+		})
+
+		t.Run("Refresh_With_Revoked_Token", func(t *testing.T) {
+			loginResult, err := ctx.AuthService.Login(refreshUser.User.Username, "SecurePass123!")
+			if err != nil {
+				t.Fatalf("Failed to login: %v", err)
+			}
+
+			if err := ctx.AuthService.RevokeRefreshToken(loginResult.RefreshToken); err != nil {
+				t.Fatalf("Failed to revoke refresh token: %v", err)
+			}
+
+			request := makePostRequestWithJSON(t, ctx.Router, "/api/auth/refresh", map[string]any{"refresh_token": loginResult.RefreshToken})
+			assertErrorResponse(t, request, http.StatusUnauthorized)
+		})
+
+		t.Run("Refresh_With_Empty_Token", func(t *testing.T) {
+			request := makePostRequestWithJSON(t, ctx.Router, "/api/auth/refresh", map[string]any{"refresh_token": ""})
+			assertErrorResponse(t, request, http.StatusBadRequest)
+		})
+
+		t.Run("Refresh_With_Missing_Token_Field", func(t *testing.T) {
+			request := makePostRequestWithJSON(t, ctx.Router, "/api/auth/refresh", map[string]any{})
+			assertErrorResponse(t, request, http.StatusBadRequest)
+		})
+
+		t.Run("Refresh_Token_Rotation", func(t *testing.T) {
+			loginResult, err := ctx.AuthService.Login(refreshUser.User.Username, "SecurePass123!")
+			if err != nil {
+				t.Fatalf("Failed to login: %v", err)
+			}
+
+			originalRefreshToken := loginResult.RefreshToken
+
+			request := makePostRequestWithJSON(t, ctx.Router, "/api/auth/refresh", map[string]any{"refresh_token": originalRefreshToken})
+
+			response := assertJSONResponse(t, request, http.StatusOK)
+			if data, ok := getDataFromResponse(response); ok {
+				if newAccessToken, ok := data["access_token"].(string); ok {
+					if newAccessToken == "" {
+						t.Error("Expected new access token in refresh response")
+					}
+
+					if newRefreshToken, ok := data["refresh_token"].(string); ok {
+						if newRefreshToken != "" && newRefreshToken == originalRefreshToken {
+							t.Log("Refresh token rotation may not be implemented (same token returned)")
+						}
+					}
+				}
+			}
+		})
+
+		t.Run("Refresh_After_Account_Lock", func(t *testing.T) {
+			lockedUser := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, uniqueTestUsername(t, "refresh_lock"), uniqueTestEmail(t, "refresh_lock"))
+
+			loginResult, err := ctx.AuthService.Login(lockedUser.User.Username, "SecurePass123!")
+			if err != nil {
+				t.Fatalf("Failed to login: %v", err)
+			}
+
+			lockedUser.User.Locked = true
+			if err := ctx.Suite.UserRepo.Update(lockedUser.User); err != nil {
+				t.Fatalf("Failed to lock user: %v", err)
+			}
+
+			request := makePostRequestWithJSON(t, ctx.Router, "/api/auth/refresh", map[string]any{"refresh_token": loginResult.RefreshToken})
+
+			assertStatusRange(t, request, http.StatusUnauthorized, http.StatusForbidden)
+		})
+
+		t.Run("Refresh_With_Invalid_Token_Format", func(t *testing.T) {
+			request := makePostRequestWithJSON(t, ctx.Router, "/api/auth/refresh", map[string]any{"refresh_token": "invalid-token-format-12345"})
+			assertErrorResponse(t, request, http.StatusUnauthorized)
+		})
+	})
+
+	t.Run("Pagination_Edge_Cases", func(t *testing.T) {
+		ctx.Suite.EmailSender.Reset()
+		paginationUser := createAuthenticatedUser(t, ctx.AuthService, ctx.Suite.UserRepo, uniqueTestUsername(t, "pagination_edge"), uniqueTestEmail(t, "pagination_edge"))
+
+		for i := 0; i < 5; i++ {
+			testutils.CreatePostWithRepo(t, ctx.Suite.PostRepo, paginationUser.User.ID, fmt.Sprintf("Pagination Post %d", i), fmt.Sprintf("https://example.com/pag%d", i))
+		}
+
+		t.Run("Negative_Limit", func(t *testing.T) {
+			request := makeGetRequest(t, ctx.Router, "/api/posts?limit=-1")
+			assertStatusRange(t, request, http.StatusOK, http.StatusBadRequest)
+		})
+
+		t.Run("Negative_Offset", func(t *testing.T) {
+			request := makeGetRequest(t, ctx.Router, "/api/posts?offset=-1")
+			assertStatusRange(t, request, http.StatusOK, http.StatusBadRequest)
+		})
+
+		t.Run("Very_Large_Limit", func(t *testing.T) {
+			request := makeGetRequest(t, ctx.Router, "/api/posts?limit=10000")
+			assertStatusRange(t, request, http.StatusOK, http.StatusBadRequest)
+		})
+
+		t.Run("Very_Large_Offset", func(t *testing.T) {
+			request := makeGetRequest(t, ctx.Router, "/api/posts?offset=10000")
+
+			response := assertJSONResponse(t, request, http.StatusOK)
+			if data, ok := getDataFromResponse(response); ok {
+				if posts, ok := data["posts"].([]any); ok {
+					if len(posts) > 0 {
+						t.Logf("Large offset returned %d posts (may be expected)", len(posts))
+					}
+				}
+			}
+		})
+
+		t.Run("Invalid_Pagination_Parameters", func(t *testing.T) {
+			invalidParams := []string{
+				"limit=abc",
+				"offset=xyz",
+				"limit=",
+				"offset=",
+			}
+
+			for _, param := range invalidParams {
+				request := makeGetRequest(t, ctx.Router, "/api/posts?"+param)
+				assertStatus(t, request, http.StatusOK)
+			}
+		})
 	})
 }