Improve test, fix typo

Author: MGatner

tests/system/Cache/Handlers/FileHandlerTest.php

@@ -26,6 +26,11 @@ protected function setUp(): void
 	{
 		parent::setUp();
 
+		if (! function_exists('octal_permissions'))
+		{
+			helper('filesystem');
+		}
+
 		// Initialize path
 		$this->config                     = new \Config\Cache();
 		$this->config->file['storePath'] .= self::$directory;
@@ -188,18 +193,18 @@ public function testSaveMode($int, $string)
 		$this->fileHandler->save(self::$key1, 'value');
 
 		$file = $config->file['storePath'] . DIRECTORY_SEPARATOR . self::$key1;
-		$mode = substr(sprintf('%o', fileperms($file)), -4);
+		$mode = octal_permissions(fileperms($file));
 
 		$this->assertEquals($string, $mode);
 	}
 
 	public function modeProvider()
 	{
 		return [
-			[0640, '0640'],
-			[0600, '0600'],
-			[0660, '0660'],
-			[0777, '0777'],
+			[0640, '640'],
+			[0600, '600'],
+			[0660, '660'],
+			[0777, '777'],
 		];
 	}
 

user_guide_src/source/libraries/caching.rst

@@ -61,7 +61,7 @@ here that is prepended to all key names.
 
 **$file**
 
-This is an array of settings specific to the  ``File`` handler determine how it should save the cache files.
+This is an array of settings specific to the  ``File`` handler to determine how it should save the cache files.
 
 **$memcached**