[1.5.0] Add rudimentary I18N and L10N support based off MediaWiki

- Also: allow 'x' subtag in language codes

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@701 48356398-32a2-884e-a903-53898d9a118a

tests/HTMLPurifier/LanguageFactoryTest.php

@@ -0,0 +1,47 @@
+<?php
+
+require_once 'HTMLPurifier/LanguageFactory.php';
+
+class HTMLPurifier_LanguageFactoryTest extends UnitTestCase
+{
+    
+    function test() {
+        
+        $factory = HTMLPurifier_LanguageFactory::instance();
+        
+        $language = $factory->create('en');
+        
+        $this->assertIsA($language, 'HTMLPurifier_Language');
+        $this->assertEqual($language->code, 'en');
+        
+        // lazy loading test
+        $this->assertEqual(count($language->messages), 0);
+        $language->load();
+        $this->assertNotEqual(count($language->messages), 0);
+        
+        // actual tests for content can be found in LanguageTest
+        
+    }
+    
+    function testFallback() {
+        
+        $factory = HTMLPurifier_LanguageFactory::instance();
+        
+        $language = $factory->create('en-x-test');
+        
+        $this->assertIsA($language, 'HTMLPurifier_Language_en_x_test');
+        $this->assertEqual($language->code, 'en-x-test');
+        
+        $language->load();
+        
+        // test overloaded message
+        $this->assertEqual($language->getMessage('htmlpurifier'), 'HTML Purifier X');
+        
+        // test inherited message
+        $this->assertEqual($language->getMessage('pizza'), 'Pizza');
+        
+    }
+    
+}
+
+?>