Add tests for Model::setAllowedFields

Author: paulbalandan

system/Model.php

@@ -1578,9 +1578,10 @@ public function errors(bool $forceDB = false)
 
 		return $error['message'] ?? null;
 	}
-	
+
+	//--------------------------------------------------------------------
+
 	/**
-	 * Allows to set allowed fields.
 	 * It could be used when you have to change default or override current allowed fields.
 	 *
 	 * @param array $allowedFields
@@ -1589,7 +1590,7 @@ public function errors(bool $forceDB = false)
 	 */
 	public function setAllowedFields(array $allowedFields)
 	{
-		$this->$allowedFields = $allowedFields;
+		$this->allowedFields = $allowedFields;
 	}
 
 	//--------------------------------------------------------------------

tests/system/Database/Live/ModelTest.php

@@ -1,4 +1,6 @@
-<?php namespace CodeIgniter\Database\Live;
+<?php
+
+namespace CodeIgniter\Database\Live;
 
 use BadMethodCallException;
 use CodeIgniter\Config\Config;
@@ -2579,4 +2581,27 @@ public function testcountAllResultsFalseWithDeletedFalseUseSoftDeletesFalse()
 		$this->assertFalse($this->getPrivateProperty($model, 'tempUseSoftDeletes'));
 	}
 
+	public function testSetAllowedFields()
+	{
+		$allowed1 = [
+			'id',
+			'created_at',
+		];
+		$allowed2 = [
+			'id',
+			'updated_at',
+		];
+
+		$model = new class extends Model {
+			protected $allowedFields = [
+				'id',
+				'created_at',
+			];
+		};
+
+		$this->assertSame($allowed1, $this->getPrivateProperty($model, 'allowedFields'));
+
+		$model->setAllowedFields($allowed2);
+		$this->assertSame($allowed2, $this->getPrivateProperty($model, 'allowedFields'));
+	}
 }