Add tests for the mutator

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tests/ModelTest.php

@@ -6,6 +6,7 @@
 use Illuminate\Database\Eloquent\Collection as EloquentCollection;
 use Illuminate\Database\Eloquent\ModelNotFoundException;
 use Illuminate\Support\Facades\Date;
+use Illuminate\Support\Str;
 use Jenssegers\Mongodb\Collection;
 use Jenssegers\Mongodb\Connection;
 use Jenssegers\Mongodb\Eloquent\Model;
@@ -678,6 +679,23 @@ public function testDotNotation(): void
         $this->assertEquals('Strasbourg', $user['address.city']);
     }
 
+    public function testAttributeMutator(): void
+    {
+        $username = 'JaneDoe';
+        $usernameSlug = Str::slug($username);
+        $user = User::create([
+            'name' => 'Jane Doe',
+            'username' => $username,
+        ]);
+
+        $this->assertNotEquals($username, $user->getAttribute('username'));
+        $this->assertNotEquals($username, $user['username']);
+        $this->assertNotEquals($username, $user->username);
+        $this->assertEquals($usernameSlug, $user->getAttribute('username'));
+        $this->assertEquals($usernameSlug, $user['username']);
+        $this->assertEquals($usernameSlug, $user->username);
+    }
+
     public function testMultipleLevelDotNotation(): void
     {
         /** @var Book $book */

tests/models/User.php

@@ -7,8 +7,10 @@
 use Illuminate\Contracts\Auth\Authenticatable as AuthenticatableContract;
 use Illuminate\Contracts\Auth\CanResetPassword as CanResetPasswordContract;
 use Illuminate\Notifications\Notifiable;
+use Illuminate\Support\Str;
 use Jenssegers\Mongodb\Eloquent\HybridRelations;
 use Jenssegers\Mongodb\Eloquent\Model as Eloquent;
+use Illuminate\Database\Eloquent\Casts\Attribute;
 
 /**
  * Class User.
@@ -21,10 +23,14 @@
  * @property \Carbon\Carbon $birthday
  * @property \Carbon\Carbon $created_at
  * @property \Carbon\Carbon $updated_at
+ * @property string $username
  */
 class User extends Eloquent implements AuthenticatableContract, CanResetPasswordContract
 {
-    use Authenticatable, CanResetPassword, HybridRelations, Notifiable;
+    use Authenticatable;
+    use CanResetPassword;
+    use HybridRelations;
+    use Notifiable;
 
     protected $connection = 'mongodb';
     protected $dates = ['birthday', 'entry.date'];
@@ -84,4 +90,12 @@ protected function serializeDate(DateTimeInterface $date)
     {
         return $date->format('l jS \of F Y h:i:s A');
     }
+
+    protected function username(): Attribute
+    {
+        return Attribute::make(
+            get: fn ($value) => $value,
+            set: fn ($value) => Str::slug($value)
+        );
+    }
 }