1 files changed, 91 insertions, 0 deletions
diff --git a/tests/phpunit/includes/cache/LocalisationCacheTest.php b/tests/phpunit/includes/cache/LocalisationCacheTest.php
new file mode 100644
index 00000000..fc06a501
--- /dev/null
+++ b/tests/phpunit/includes/cache/LocalisationCacheTest.php
@@ -0,0 +1,91 @@
+<?php
+/**
+ * @group Database
+ * @group Cache
+ * @covers LocalisationCache
+ * @author Niklas Laxström
+ */
+class LocalisationCacheTest extends MediaWikiTestCase {
+	protected function setUp() {
+		global $IP;
+
+		parent::setUp();
+		$this->setMwGlobals( array(
+			'wgMessagesDirs' => array( "$IP/tests/phpunit/data/localisationcache" ),
+			'wgExtensionMessagesFiles' => array(),
+			'wgHooks' => array(),
+		) );
+	}
+
+	public function testPuralRulesFallback() {
+		$cache = new LocalisationCache( array( 'store' => 'detect' ) );
+
+		$this->assertEquals(
+			$cache->getItem( 'ar', 'pluralRules' ),
+			$cache->getItem( 'arz', 'pluralRules' ),
+			'arz plural rules (undefined) fallback to ar (defined)'
+		);
+
+		$this->assertEquals(
+			$cache->getItem( 'ar', 'compiledPluralRules' ),
+			$cache->getItem( 'arz', 'compiledPluralRules' ),
+			'arz compiled plural rules (undefined) fallback to ar (defined)'
+		);
+
+		$this->assertNotEquals(
+			$cache->getItem( 'ksh', 'pluralRules' ),
+			$cache->getItem( 'de', 'pluralRules' ),
+			'ksh plural rules (defined) dont fallback to de (defined)'
+		);
+
+		$this->assertNotEquals(
+			$cache->getItem( 'ksh', 'compiledPluralRules' ),
+			$cache->getItem( 'de', 'compiledPluralRules' ),
+			'ksh compiled plural rules (defined) dont fallback to de (defined)'
+		);
+	}
+
+	public function testRecacheFallbacks() {
+		$lc = new LocalisationCache( array( 'store' => 'detect' ) );
+		$lc->recache( 'uk' );
+		$this->assertEquals(
+			array(
+				'present-uk' => 'uk',
+				'present-ru' => 'ru',
+				'present-en' => 'en',
+			),
+			$lc->getItem( 'uk', 'messages' ),
+			'Fallbacks are only used to fill missing data'
+		);
+	}
+
+	public function testRecacheFallbacksWithHooks() {
+		global $wgHooks;
+
+		// Use hook to provide updates for messages. This is what the
+		// LocalisationUpdate extension does. See bug 68781.
+		$wgHooks['LocalisationCacheRecacheFallback'][] = function (
+			LocalisationCache $lc,
+			$code,
+			array &$cache
+		) {
+			if ( $code === 'ru' ) {
+				$cache['messages']['present-uk'] = 'ru-override';
+				$cache['messages']['present-ru'] = 'ru-override';
+				$cache['messages']['present-en'] = 'ru-override';
+			}
+		};
+
+		$lc = new LocalisationCache( array( 'store' => 'detect' ) );
+		$lc->recache( 'uk' );
+		$this->assertEquals(
+			array(
+				'present-uk' => 'uk',
+				'present-ru' => 'ru-override',
+				'present-en' => 'ru-override',
+			),
+			$lc->getItem( 'uk', 'messages' ),
+			'Updates provided by hooks follow the normal fallback order.'
+		);
+	}
+}