add test batches

app/Models/ClassSection.php

@@ -2,13 +2,13 @@
 
 namespace App\Models;
 
+use App\Models\BaseModel;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Support\Facades\DB;
 
 class ClassSection extends BaseModel
 {
     use HasFactory;
-
     // legacy table name is "classSection"
     protected $table = 'classSection';
 
@@ -24,7 +24,7 @@ class ClassSection extends BaseModel
     ];
 
     protected $casts = [
-        'class_id' => 'integer',
+        'class_id'         => 'integer',
         'class_section_id' => 'integer',
     ];