diff --git a/app/Http/Controllers/api/AdminController.php b/app/Http/Controllers/api/AdminController.php
index ce02f943..b2da727b 100644
--- a/app/Http/Controllers/api/AdminController.php
+++ b/app/Http/Controllers/api/AdminController.php
@@ -21,10 +21,16 @@ public function index()
         $admins = Admin::all();
 
         if ($admins->isEmpty()) {
-            throw new HttpResponseException(response()->json(['message' => __('No hi ha administradors a la base de dades')], 404));
+            throw new HttpResponseException(response()->json(
+                ['message' => __('No hi ha administradors a la base de dades')],
+                404
+            ));
         }
 
-        return response()->json(['data' => AdminIndexResource::collection($admins)], 200);
+        return response()->json(
+            ['data' => AdminIndexResource::collection($admins)],
+            200
+        );
     }
 
     public function store(UserRequest $request)
@@ -44,10 +50,16 @@ public function store(UserRequest $request)
             return $user;
         });
         if (!$transaction) {
-            throw new HttpResponseException(response()->json(['message' => __('Registre no efectuat. Si-us-plau, torna-ho a provar.')], 404));
+            throw new HttpResponseException(response()->json(
+                ['message' => __('Registre no efectuat. Si-us-plau, torna-ho a provar.')],
+                404
+            ));
         }
 
-        return response()->json(['message' => __('Registre realitzat amb èxit.')], 201);
+        return response()->json(
+            ['message' => __('Registre realitzat amb èxit.')],
+            201
+        );
     }
 
     public function show($id)
@@ -56,20 +68,27 @@ public function show($id)
         $admin = $this->findAdmin($id);
 
         if (!$admin) {
-            throw new HttpResponseException(response()->json(['message' => __('No hi ha administradors a la base de dades')], 404));
+            throw new HttpResponseException(response()->json(
+                ['message' => __('No hi ha administradors a la base de dades')],
+                404
+            ));
         }
         if ($admin->id !== $loggeuser->admin->id) {
-            return response()->json(['message' => __('No tens permisos per veure aquest usuari.')], 401);
+            return response()->json(
+                ['message' => __('No tens permisos per veure aquest usuari.')],
+                401
+            );
         }
 
-        return response()->json(['data' => new AdminShowResource($admin)], 200);
+        return response()->json(
+            ['data' => new AdminShowResource($admin)],
+            200
+        );
     }
 
     private function findAdmin($id)
     {
-        $admin = Admin::findOrFail($id);
-
-        return $admin;
+        return Admin::findOrFail($id);
     }
 
     public function update(Request $request, $id)
@@ -78,17 +97,23 @@ public function update(Request $request, $id)
 
         $admin = $this->findAdmin($id);
         if ($admin->id !== $loggeuser->admin->id) {
-            throw new HttpResponseException(response()->json(['message' => __('No tens permís per modificar aquest usuari')], 401));
+            throw new HttpResponseException(response()->json(
+                ['message' => __('No tens permís per modificar aquest usuari')],
+                401
+            ));
         }
 
         if (!$admin) {
-            throw new HttpResponseException(response()->json(['message' => __('No hi ha administradors a la base de dades')], 404));
+            throw new HttpResponseException(response()->json(
+                ['message' => __('No hi ha administradors a la base de dades')],
+                404
+            ));
         }
 
         if ($request->surname) {
             $admin->user->surname = $request->surname;
-
-        }if ($request->name) {
+        }
+        if ($request->name) {
             $admin->user->name = $request->name;
         }
         if ($request->email) {
@@ -96,8 +121,10 @@ public function update(Request $request, $id)
         }
         $admin->save();
 
-        return response()->json(['message' => 'Usuari actualitzat amb èxit', 'data' => new AdminshowResource($admin)], 200);
-
+        return response()->json(
+            ['message' => 'Usuari actualitzat amb èxit', 'data' => new AdminshowResource($admin)],
+            200
+        );
     }
 
     public function destroy($id)
@@ -107,10 +134,16 @@ public function destroy($id)
         $loggeuser = Auth::user();
         $id = $this->findAdmin($id);
         if ($admin->id !== $loggeuser->admin->id) {
-            throw new HttpResponseException(response()->json(['message' => __('No tens permís per eliminar aquest usuari')], 401));
+            throw new HttpResponseException(response()->json(
+                ['message' => __('No tens permís per eliminar aquest usuari')],
+                401
+            ));
         }
         $admin->user->delete();
 
-        return response()->json(['message' => __('La seva compte ha estat eliminada amb èxit')], 200);
+        return response()->json(
+            ['message' => __('La seva compte ha estat eliminada amb èxit')],
+            200
+        );
     }
 }
diff --git a/app/Http/Requests/LoginRequest.php b/app/Http/Requests/LoginRequest.php
index a9279871..56d29705 100644
--- a/app/Http/Requests/LoginRequest.php
+++ b/app/Http/Requests/LoginRequest.php
@@ -2,10 +2,10 @@
 
 namespace App\Http\Requests;
 
+use App\Rules\DniRule;
 use Illuminate\Contracts\Validation\Validator;
 use Illuminate\Foundation\Http\FormRequest;
 use Illuminate\Http\Exceptions\HttpResponseException;
-use App\Rules\DniRule;
 
 class LoginRequest extends FormRequest
 {
diff --git a/tests/Feature/LoginControllerTest.php b/tests/Feature/LoginControllerTest.php
index aa151802..1f29ac0a 100644
--- a/tests/Feature/LoginControllerTest.php
+++ b/tests/Feature/LoginControllerTest.php
@@ -3,10 +3,13 @@
 namespace Tests\Feature;
 
 use App\Models\User;
+use Illuminate\Foundation\Testing\DatabaseTransactions;
 use Tests\TestCase;
 
 class LoginControllerTest extends TestCase
 {
+    use DatabaseTransactions;
+
     public function setUp(): void
     {
         parent::setUp();
@@ -16,46 +19,40 @@ public function setUp(): void
 
     public function test_Login_Success()
     {
-        $user = User::factory()->create([
+        User::factory()->create([
             'dni' => '28386914S',
             'password' => bcrypt('password123'),
         ]);
 
-        $requestData = [
+        $credentials = [
             'dni' => '28386914S',
             'password' => 'password123',
         ];
 
-        $response = $this->json('POST', '/api/v1/login', $requestData);
+        $response = $this->post(route('login'), $credentials);
 
         $response->assertStatus(200)->assertJsonStructure(['token']);
-
     }
 
-    public function test_a_user_can_login_with_short_password()
+    public function test_a_user_cannot_login_with_short_password()
     {
-        $user = User::factory()->create([
+        User::factory()->create([
             'dni' => 'Z0038540C',
             'password' => '12345678',
         ]);
         $credentials = [
-            'dni' => '28386914S',
+            'dni' => 'Z0038540C',
             'password' => '123456',
         ];
 
-        $response = $this->json('POST', '/api/v1/login', $credentials);
+        $response = $this->post(route('login'), $credentials);
 
         $response->assertStatus(422);
-
     }
 
-    public function test_a_user_can_login_with_not_dni()
+    public function test_a_user_cannot_login_without_dni_neither_passport()
     {
-        $user = User::factory()->create();
-        $credentials = [
-            'dni',
-            'password' => '12345678',
-        ];
+        User::factory()->create();
 
         $response = $this->json('POST', '/api/v1/login');
         $response->assertStatus(422)
@@ -66,12 +63,11 @@ public function test_a_user_can_login_with_not_dni()
                     'password' => [__('El camp contrasenya és obligatori.')],
                 ],
             ]);
-
     }
 
     public function test_login_failure_bad_data()
     {
-        $response = $this->post('/api/v1/login', [
+        $response = $this->post(route('login'), [
             'dni' => 'Z0038540C',
             'password' => 'wrongpassword',
         ]);
@@ -80,7 +76,6 @@ public function test_login_failure_bad_data()
         $response->assertJson([
             'message' => __('Dni-Nie o contrasenya incorrecte'),
         ]);
-
     }
 
     public function test_can_logout()
@@ -100,7 +95,7 @@ public function test_can_logout()
     public function test_logout_no_auth()
     {
 
-        $user = User::factory()->create();
+        User::factory()->create();
 
         $response = $this->postJson('/api/v1/logout');
 
diff --git a/tests/Feature/Student/StudentDeleteTest.php b/tests/Feature/Student/StudentDeleteTest.php
index 56b655e3..ae2e4ee1 100644
--- a/tests/Feature/Student/StudentDeleteTest.php
+++ b/tests/Feature/Student/StudentDeleteTest.php
@@ -101,7 +101,5 @@ public function a_student_cannot_get_unregistered_by_another_student(): void
 
         $response->status(401);
 
-
-
     }
 }
diff --git a/tests/Feature/Student/StudentListTest.php b/tests/Feature/Student/StudentListTest.php
index 80837b34..30476bef 100644
--- a/tests/Feature/Student/StudentListTest.php
+++ b/tests/Feature/Student/StudentListTest.php
@@ -14,6 +14,7 @@ public function setUp(): void
 
         $this->artisan('passport:install');
     }
+
     public function verifyOrCreateRole()
     {
         if (!Role::where('name', 'student')->exists()) {
@@ -47,6 +48,4 @@ public function a_list_of_registered_students_can_be_retrieved(): void
         $response->assertHeader('Content-Type', 'application/json');
 
     }
-
-
 }
diff --git a/tests/Feature/Student/StudentUpdateTest.php b/tests/Feature/Student/StudentUpdateTest.php
index f7cb9697..adc9864f 100644
--- a/tests/Feature/Student/StudentUpdateTest.php
+++ b/tests/Feature/Student/StudentUpdateTest.php
@@ -17,7 +17,6 @@ public function setUp(): void
         $this->artisan('passport:install');
     }
 
-
     public function verifyOrCreateRolesAndPermissions()
     {
         if (!Role::where('name', 'student')->exists()) {
@@ -57,8 +56,6 @@ public function student_data_can_be_updated_by_himself(): void
 
         $this->assertAuthenticatedAs($user);
 
-
-
         $data = [
             'name' => 'Johnny',
             'surname' => 'Doe',
@@ -109,7 +106,6 @@ public function student_data_cannot_be_updated_by_another_student(): void
             'password' => $password,
         ]);
 
-
         $this->actingAs($user, 'api');
 
         $data = [