Add Encryption cast test

Author: stubbo

tests/Casts/EncryptionTest.php

@@ -0,0 +1,29 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Casts;
+
+use Illuminate\Encryption\Encrypter;
+use MongoDB\Laravel\Tests\Models\Casting;
+use MongoDB\Laravel\Tests\TestCase;
+
+class EncryptionTest extends TestCase
+{
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        Casting::truncate();
+    }
+
+    public function testEncryptedString(): void
+    {
+        $model = Casting::query()->create(['encryptedString' => 'encrypted']);
+
+        self::assertIsString($model->encryptedString);
+        self::assertEquals('encrypted', $model->encryptedString);
+        self::assertNotEquals('encrypted', $model->getRawOriginal('encryptedString'));
+        self::assertEquals('encrypted', app()->make(Encrypter::class)->decryptString($model->getRawOriginal('encryptedString')));
+    }
+}

tests/Models/Casting.php

@@ -32,6 +32,7 @@ class Casting extends Eloquent
         'datetimeWithFormatField',
         'immutableDatetimeField',
         'immutableDatetimeWithFormatField',
+        'encryptedString',
     ];
 
     protected $casts = [
@@ -52,5 +53,6 @@ class Casting extends Eloquent
         'datetimeWithFormatField' => 'datetime:j.n.Y H:i',
         'immutableDatetimeField' => 'immutable_datetime',
         'immutableDatetimeWithFormatField' => 'immutable_datetime:j.n.Y H:i',
+        'encryptedString' => 'encrypted',
     ];
 }