diff --git a/.gitignore b/.gitignore
index 118ab2a..a799967 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,8 @@
 #dependencies
-vendor/simplepie/*
-vendor/JKingWeb/DrUUID/*
-vendor/org/bovigo/vfs/*
+vendor/simplepie
+vendor/JKingWeb/DrUUID
+vendor/org
+vendor/Webmozart
 
 #temp files
 cache/*
diff --git a/tests/TestLang.php b/tests/TestLang.php
new file mode 100644
index 0000000..d9fb3c3
--- /dev/null
+++ b/tests/TestLang.php
@@ -0,0 +1,46 @@
+<?php
+declare(strict_types=1);
+namespace JKingWeb\NewsSync;
+use \org\bovigo\vfs\vfsStream;
+
+
+class TestLang extends \PHPUnit\Framework\TestCase {
+	use TestingHelpers;
+
+	static $vfs;
+	static $path;
+
+	const FILES = [
+		'en.php'    => '<?php return ["Test.presentText" => "and the Philosopher\'s Stone"];',
+		'en-ca.php' => '<?php return [];',
+		'en-us.php' => '<?php return ["Test.presentText" => "and the Sorcerer\'s Stone"];',
+		'fr.php'    => '<?php return ["Test.presentText" => "à l\'école des sorciers"];',
+		'ja.php'    => '<?php return ["Test.absentText"  => "賢者の石"];',
+		// corrupt files
+		'it.php'    => '<?php return 0;',
+		'zh.php'    => '<?php return 0',
+		'ko.php'    => 'DEAD BEEF',
+		// empty file
+		'fr-ca.php' => '',
+		// unreadable file
+		'ru.php'    => '',
+	];
+
+	static function setUpBeforeClass() {
+		Lang\Exception::$test = true;
+		self::$vfs = vfsStream::setup("langtest", 0777, self::FILES);
+		self::$path = self::$vfs->url();
+		// set up a file without read access
+		chmod(self::$path."/ru.php", 0000);
+	}
+
+	static function tearDownAfterClass() {
+		Lang\Exception::$test = false;
+		self::$path = null;
+		self::$vfs = null;
+	}
+
+	function testList() {
+		$this->assertEquals(sizeof(self::FILES), sizeof(Lang::list("en", "vfs://langtest/")));
+	}
+}
\ No newline at end of file
diff --git a/tests/phpunit.xml b/tests/phpunit.xml
index 4e40ffe..5292daa 100644
--- a/tests/phpunit.xml
+++ b/tests/phpunit.xml
@@ -10,6 +10,7 @@
   beStrictAboutTestSize="true">
 
   <testsuite name="Base">
+      <file>TestLang.php</file>
       <file>TestConf.php</file>
   </testsuite>
 
diff --git a/vendor/JKingWeb/NewsSync/Lang.php b/vendor/JKingWeb/NewsSync/Lang.php
index 7fbb5cf..7f1ae97 100644
--- a/vendor/JKingWeb/NewsSync/Lang.php
+++ b/vendor/JKingWeb/NewsSync/Lang.php
@@ -1,6 +1,7 @@
 <?php
 declare(strict_types=1);
 namespace JKingWeb\NewsSync;
+use \Webmozart\Glob\Glob;
 
 class Lang {
 	const PATH = BASE."locale".DIRECTORY_SEPARATOR;
@@ -63,9 +64,9 @@ class Lang {
 		return $msg;
 	}
 
-	static public function list(string $locale = ""): array {
+	static public function list(string $locale = "", string $path = self::PATH): array {
 		$out = [];
-		$files = self::listFiles();
+		$files = self::listFiles($path);
 		foreach($files as $tag) {
 			$out[$tag] = \Locale::getDisplayName($tag, ($locale=="") ? $tag : $locale); 		
 		}
@@ -85,11 +86,13 @@ class Lang {
 	}
 	
 	static protected function listFiles(string $path = self::PATH): array {
-		$out = glob($path."*.php");
-		return array_map(function($file) {
-			$file = substr($file,strrpos($file,DIRECTORY_SEPARATOR)+1);
+		$out = Glob::glob($path."*.php");
+		$out = array_map(function($file) {
+			$file = substr(str_replace(DIRECTORY_SEPARATOR, "/", $file),strrpos($file,"/")+1);
 			return strtolower(substr($file,0,strrpos($file,".")));
 		},$out);
+		natsort($out);
+		return $out;
 	}
 
 	static protected function load(): bool {
@@ -127,7 +130,16 @@ class Lang {
 		foreach($files as $file) {
 			if(!file_exists(self::PATH."$file.php")) throw new Lang\Exception("fileMissing", $file);
 			if(!is_readable(self::PATH."$file.php")) throw new Lang\Exception("fileUnreadable", $file);
-			if(!$strings[] = (@include self::PATH."$file.php")) throw new Lang\Exception("fileCorrupt", $file);
+			try {
+				ob_start();
+				$arr = (include self::PATH."$file.php");
+			} catch(\Throwable $e) {
+				$arr = null;
+			} finally {
+				ob_end_clean();
+			}
+			if(!is_array($arr)) throw new Lang\Exception("fileCorrupt", $file);
+			$strings[] = $arr;
 		}
 		// apply the results and return
 		self::$strings = call_user_func_array("array_replace_recursive", $strings);
diff --git a/vendor/JKingWeb/NewsSync/Lang/Exception.php b/vendor/JKingWeb/NewsSync/Lang/Exception.php
index c2c9663..e0ea4c5 100644
--- a/vendor/JKingWeb/NewsSync/Lang/Exception.php
+++ b/vendor/JKingWeb/NewsSync/Lang/Exception.php
@@ -3,4 +3,22 @@ declare(strict_types=1);
 namespace JKingWeb\NewsSync\Lang;
 
 class Exception extends \JKingWeb\NewsSync\Exception {
+	static $test = false; // used during PHPUnit testing only
+
+	function __construct(string $msgID = "", $vars = null, \Throwable $e = null) {
+		if(!self::$test) {
+			parent::__construct($msgID, $vars, $e);
+		} else {
+			$codeID = "Lang/Exception.$msgID";
+			if(!array_key_exists($codeID,self::CODES)) {
+				$code = -1;
+				$msg = "Exception.".str_replace("\\","/",parent::class).".uncoded";
+				$vars = $msgID;
+			} else {
+				$code = self::CODES[$codeID];
+				$msg = "Exception.".str_replace("\\","/",__CLASS__).".$msgID";
+			}
+			\Exception::construct($msg, $code, $e);
+		}
+	}
 }
\ No newline at end of file