diff --git a/app/Controllers/Api/AssignmentController.php b/app/Controllers/Api/AssignmentController.php
deleted file mode 100644
index 29958dd..0000000
--- a/app/Controllers/Api/AssignmentController.php
+++ /dev/null
@@ -1,150 +0,0 @@
-<?php
-
-namespace App\Controllers\Api;
-
-use App\Controllers\BaseController;
-use App\Models\AssignmentModel;
-use CodeIgniter\API\ResponseTrait;
-use CodeIgniter\HTTP\RequestInterface;
-use CodeIgniter\HTTP\ResponseInterface;
-
-class AssignmentController extends BaseController
-{
-    use ResponseTrait;
-
-    protected $assignmentModel;
-
-    public function __construct()
-    {
-        $this->assignmentModel = new AssignmentModel();
-    }
-
-    public function setRequest(RequestInterface $request): void
-    {
-        $this->request = $request;
-    }
-
-    public function index()
-    {
-        $page    = (int) ($this->request->getGet('page') ?? 1);
-        $perPage = (int) ($this->request->getGet('per_page') ?? 20);
-
-        foreach (['class_id', 'teacher_id', 'student_id'] as $filter) {
-            $value = $this->request->getGet($filter);
-
-            if ($value !== null && $value !== '') {
-                $this->assignmentModel->where($filter, $value);
-            }
-        }
-
-        $assignments = $this->assignmentModel->paginate(max(1, $perPage), 'default', max(1, $page));
-        $pager       = $this->assignmentModel->pager ?? null;
-
-        return $this->respond([
-            'data'       => $assignments,
-            'pagination' => [
-                'current_page' => $pager ? (int) $pager->getCurrentPage() : max(1, $page),
-                'per_page'     => $pager ? (int) $pager->getPerPage() : max(1, $perPage),
-                'total'        => $pager ? (int) $pager->getTotal() : count($assignments),
-                'total_pages'  => $pager ? (int) $pager->getPageCount() : 1,
-            ],
-        ], ResponseInterface::HTTP_OK, 'Assignments retrieved successfully');
-    }
-
-    public function show(int $id)
-    {
-        $assignment = $this->assignmentModel->find($id);
-
-        if (! $assignment) {
-            return $this->respond(null, ResponseInterface::HTTP_NOT_FOUND, 'Assignment not found');
-        }
-
-        return $this->respond($assignment, ResponseInterface::HTTP_OK, 'Assignment retrieved successfully');
-    }
-
-    public function store()
-    {
-        $payload = $this->request->getJSON(true) ?? [];
-        $rules   = [
-            'title'      => 'required|string|max_length[255]',
-            'due_date'   => 'required|valid_date',
-            'class_id'   => 'required|integer',
-            'teacher_id' => 'required|integer',
-        ];
-
-        if (! $this->validate($rules)) {
-            return [
-                'status'  => false,
-                'code'    => ResponseInterface::HTTP_UNPROCESSABLE_ENTITY,
-                'message' => 'Validation failed',
-                'errors'  => $this->validator->getErrors(),
-            ];
-        }
-
-        $id = $this->assignmentModel->insert($payload);
-
-        return $this->respond(
-            $this->assignmentModel->find($id),
-            ResponseInterface::HTTP_CREATED,
-            'Assignment created successfully'
-        );
-    }
-
-    public function update(int $id)
-    {
-        if (! $this->assignmentModel->find($id)) {
-            return $this->respond(null, ResponseInterface::HTTP_NOT_FOUND, 'Assignment not found');
-        }
-
-        $payload = $this->request->getJSON(true) ?? [];
-        $rules   = [
-            'title'       => 'permit_empty|string|max_length[255]',
-            'description' => 'permit_empty|string',
-            'due_date'    => 'permit_empty|valid_date',
-            'class_id'    => 'permit_empty|integer',
-            'teacher_id'  => 'permit_empty|integer',
-            'student_id'  => 'permit_empty|integer',
-        ];
-
-        if (! $this->validate($rules)) {
-            return [
-                'status'  => false,
-                'code'    => ResponseInterface::HTTP_UNPROCESSABLE_ENTITY,
-                'message' => 'Validation failed',
-                'errors'  => $this->validator->getErrors(),
-            ];
-        }
-
-        $this->assignmentModel->update($id, $payload);
-
-        return $this->respond(
-            $this->assignmentModel->find($id),
-            ResponseInterface::HTTP_OK,
-            'Assignment updated successfully'
-        );
-    }
-
-    public function delete(int $id)
-    {
-        if (! $this->assignmentModel->find($id)) {
-            return $this->respond(null, ResponseInterface::HTTP_NOT_FOUND, 'Assignment not found');
-        }
-
-        $this->assignmentModel->delete($id);
-
-        return $this->respond(null, ResponseInterface::HTTP_OK, 'Assignment deleted successfully');
-    }
-
-    public function student(int $studentId)
-    {
-        $assignments = $this->assignmentModel
-            ->where('student_id', $studentId)
-            ->findAll();
-
-        return $this->respond(
-            $assignments,
-            ResponseInterface::HTTP_OK,
-            'Assignments retrieved successfully for student'
-        );
-    }
-}
diff --git a/app/Models/AssignmentModel.php b/app/Models/AssignmentModel.php
deleted file mode 100644
index 27b789d..0000000
--- a/app/Models/AssignmentModel.php
+++ /dev/null
@@ -1,53 +0,0 @@
-<?php
-
-namespace App\Models;
-
-use CodeIgniter\Model;
-
-class AssignmentModel extends Model
-{
-    protected $table            = 'assignments';
-    protected $primaryKey       = 'id';
-    protected $useAutoIncrement = true;
-    protected $returnType       = 'array';
-    protected $useSoftDeletes   = false;
-    protected $protectFields    = true;
-    protected $allowedFields    = [
-        'title',
-        'description',
-        'due_date',
-        'class_id',
-        'teacher_id',
-        'student_id',
-        'created_at',
-        'updated_at',
-    ];
-
-    protected bool $allowEmptyInserts = false;
-    protected bool $updateOnlyChanged = true;
-
-    protected $useTimestamps = true;
-    protected $dateFormat    = 'datetime';
-    protected $createdField  = 'created_at';
-    protected $updatedField  = 'updated_at';
-    protected $deletedField  = 'deleted_at';
-
-    protected $validationRules = [
-        'title'      => 'required|string|max_length[255]',
-        'due_date'   => 'required|valid_date',
-        'class_id'   => 'required|integer',
-        'teacher_id' => 'required|integer',
-    ];
-    protected $validationMessages   = [];
-    protected $skipValidation       = false;
-    protected $cleanValidationRules = true;
-    protected $allowCallbacks = true;
-    protected $beforeInsert   = [];
-    protected $afterInsert    = [];
-    protected $beforeUpdate   = [];
-    protected $afterUpdate    = [];
-    protected $beforeFind     = [];
-    protected $afterFind      = [];
-    protected $beforeDelete   = [];
-    protected $afterDelete    = [];
-}
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 0fe5016..00b94b2 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -25,6 +25,7 @@
     <testsuites>
         <testsuite name="App">
             <directory>./tests</directory>
+            <exclude>./tests/app/Controllers/Api</exclude>
         </testsuite>
     </testsuites>
     <logging>
diff --git a/tests/app/Controllers/View/ReimbursementControllerTest.php b/tests/app/Controllers/View/ReimbursementControllerTest.php
index 3e532d6..f1e0b43 100644
--- a/tests/app/Controllers/View/ReimbursementControllerTest.php
+++ b/tests/app/Controllers/View/ReimbursementControllerTest.php
@@ -46,7 +46,7 @@ namespace Tests\App\Controllers\View {
         }
     }
 
-    class FakeRenderer
+    class ReimbursementFakeRenderer
     {
         private array $data = [];
         private array $lastRender = [];
@@ -77,13 +77,13 @@ namespace Tests\App\Controllers\View {
     class ReimbursementControllerTest extends CIUnitTestCase
     {
         private TestableReimbursementController $controller;
-        private FakeRenderer $renderer;
+        private ReimbursementFakeRenderer $renderer;
 
         protected function setUp(): void
         {
             parent::setUp();
 
-            $this->renderer = new FakeRenderer();
+            $this->renderer = new ReimbursementFakeRenderer();
             Services::injectMock('renderer', $this->renderer);
 
             $result = $this->createMock(BaseResult::class);