1 files changed, 174 insertions, 0 deletions
diff --git a/www/wiki/tests/phpunit/includes/cache/MessageCacheTest.php b/www/wiki/tests/phpunit/includes/cache/MessageCacheTest.php
new file mode 100644
index 00000000..b03eeba2
--- /dev/null
+++ b/www/wiki/tests/phpunit/includes/cache/MessageCacheTest.php
@@ -0,0 +1,174 @@
+<?php
+
+/**
+ * @group Database
+ * @group Cache
+ * @covers MessageCache
+ */
+class MessageCacheTest extends MediaWikiLangTestCase {
+
+	protected function setUp() {
+		parent::setUp();
+		$this->configureLanguages();
+		MessageCache::singleton()->enable();
+	}
+
+	/**
+	 * Helper function -- setup site language for testing
+	 */
+	protected function configureLanguages() {
+		// for the test, we need the content language to be anything but English,
+		// let's choose e.g. German (de)
+		$this->setUserLang( 'de' );
+		$this->setContentLang( 'de' );
+	}
+
+	function addDBDataOnce() {
+		$this->configureLanguages();
+
+		// Set up messages and fallbacks ab -> ru -> de
+		$this->makePage( 'FallbackLanguageTest-Full', 'ab' );
+		$this->makePage( 'FallbackLanguageTest-Full', 'ru' );
+		$this->makePage( 'FallbackLanguageTest-Full', 'de' );
+
+		// Fallbacks where ab does not exist
+		$this->makePage( 'FallbackLanguageTest-Partial', 'ru' );
+		$this->makePage( 'FallbackLanguageTest-Partial', 'de' );
+
+		// Fallback to the content language
+		$this->makePage( 'FallbackLanguageTest-ContLang', 'de' );
+
+		// Add customizations for an existing message.
+		$this->makePage( 'sunday', 'ru' );
+
+		// Full key tests -- always want russian
+		$this->makePage( 'MessageCacheTest-FullKeyTest', 'ab' );
+		$this->makePage( 'MessageCacheTest-FullKeyTest', 'ru' );
+
+		// In content language -- get base if no derivative
+		$this->makePage( 'FallbackLanguageTest-NoDervContLang', 'de', 'de/none' );
+	}
+
+	/**
+	 * Helper function for addDBData -- adds a simple page to the database
+	 *
+	 * @param string $title Title of page to be created
+	 * @param string $lang Language and content of the created page
+	 * @param string|null $content Content of the created page, or null for a generic string
+	 */
+	protected function makePage( $title, $lang, $content = null ) {
+		global $wgContLang;
+
+		if ( $content === null ) {
+			$content = $lang;
+		}
+		if ( $lang !== $wgContLang->getCode() ) {
+			$title = "$title/$lang";
+		}
+
+		$title = Title::newFromText( $title, NS_MEDIAWIKI );
+		$wikiPage = new WikiPage( $title );
+		$contentHandler = ContentHandler::makeContent( $content, $title );
+		$wikiPage->doEditContent( $contentHandler, "$lang translation test case" );
+	}
+
+	/**
+	 * Test message fallbacks, bug #1495
+	 *
+	 * @dataProvider provideMessagesForFallback
+	 */
+	public function testMessageFallbacks( $message, $lang, $expectedContent ) {
+		$result = MessageCache::singleton()->get( $message, true, $lang );
+		$this->assertEquals( $expectedContent, $result, "Message fallback failed." );
+	}
+
+	function provideMessagesForFallback() {
+		return [
+			[ 'FallbackLanguageTest-Full', 'ab', 'ab' ],
+			[ 'FallbackLanguageTest-Partial', 'ab', 'ru' ],
+			[ 'FallbackLanguageTest-ContLang', 'ab', 'de' ],
+			[ 'FallbackLanguageTest-None', 'ab', false ],
+
+			// Existing message with customizations on the fallbacks
+			[ 'sunday', 'ab', 'амҽыш' ],
+
+			// T48579
+			[ 'FallbackLanguageTest-NoDervContLang', 'de', 'de/none' ],
+			// UI language different from content language should only use de/none as last option
+			[ 'FallbackLanguageTest-NoDervContLang', 'fit', 'de/none' ],
+		];
+	}
+
+	public function testReplaceMsg() {
+		global $wgContLang;
+
+		$messageCache = MessageCache::singleton();
+		$message = 'go';
+		$uckey = $wgContLang->ucfirst( $message );
+		$oldText = $messageCache->get( $message ); // "Ausführen"
+
+		$dbw = wfGetDB( DB_MASTER );
+		$dbw->startAtomic( __METHOD__ ); // simulate request and block deferred updates
+		$messageCache->replace( $uckey, 'Allez!' );
+		$this->assertEquals( 'Allez!',
+			$messageCache->getMsgFromNamespace( $uckey, 'de' ),
+			'Updates are reflected in-process immediately' );
+		$this->assertEquals( 'Allez!',
+			$messageCache->get( $message ),
+			'Updates are reflected in-process immediately' );
+		$this->makePage( 'Go', 'de', 'Race!' );
+		$dbw->endAtomic( __METHOD__ );
+
+		$this->assertEquals( 0,
+			DeferredUpdates::pendingUpdatesCount(),
+			'Post-commit deferred update triggers a run of all updates' );
+
+		$this->assertEquals( 'Race!', $messageCache->get( $message ), 'Correct final contents' );
+
+		$this->makePage( 'Go', 'de', $oldText );
+		$messageCache->replace( $uckey, $oldText ); // deferred update runs immediately
+		$this->assertEquals( $oldText, $messageCache->get( $message ), 'Content restored' );
+	}
+
+	/**
+	 * There's a fallback case where the message key is given as fully qualified -- this
+	 * should ignore the passed $lang and use the language from the key
+	 *
+	 * @dataProvider provideMessagesForFullKeys
+	 */
+	public function testFullKeyBehaviour( $message, $lang, $expectedContent ) {
+		$result = MessageCache::singleton()->get( $message, true, $lang, true );
+		$this->assertEquals( $expectedContent, $result, "Full key message fallback failed." );
+	}
+
+	function provideMessagesForFullKeys() {
+		return [
+			[ 'MessageCacheTest-FullKeyTest/ru', 'ru', 'ru' ],
+			[ 'MessageCacheTest-FullKeyTest/ru', 'ab', 'ru' ],
+			[ 'MessageCacheTest-FullKeyTest/ru/foo', 'ru', false ],
+		];
+	}
+
+	/**
+	 * @dataProvider provideNormalizeKey
+	 */
+	public function testNormalizeKey( $key, $expected ) {
+		$actual = MessageCache::normalizeKey( $key );
+		$this->assertEquals( $expected, $actual );
+	}
+
+	public function provideNormalizeKey() {
+		return [
+			[ 'Foo', 'foo' ],
+			[ 'foo', 'foo' ],
+			[ 'fOo', 'fOo' ],
+			[ 'FOO', 'fOO' ],
+			[ 'Foo bar', 'foo_bar' ],
+			[ 'Ćab', 'ćab' ],
+			[ 'Ćab_e 3', 'ćab_e_3' ],
+			[ 'ĆAB', 'ćAB' ],
+			[ 'ćab', 'ćab' ],
+			[ 'ćaB', 'ćaB' ],
+		];
+	}
+}