resourceloader: Make $rl parameter mandatory for MessageBlobStore

Change-Id: I851b2417b7e495a1d0c7ee1aa8be2b2e970840bb

RELEASE-NOTES-1.33

@@ -255,6 +255,7 @@ because of Phabricator reports.
   parameter.
 * The ChangeList::insertArticleLink() method, that was deprecated in 1.27, has
   been removed.
+* MessageBlobStore::__construct() now requires its $rl parameter.
 
 === Deprecations in 1.33 ===
 * The configuration option $wgUseESI has been deprecated, and is expected

includes/cache/MessageBlobStore.php

@@ -37,7 +37,7 @@ use Wikimedia\Rdbms\Database;
  */
 class MessageBlobStore implements LoggerAwareInterface {
 
-	/* @var ResourceLoader|null */
+	/* @var ResourceLoader */
 	private $resourceloader;
 
 	/**
@@ -51,13 +51,13 @@ class MessageBlobStore implements LoggerAwareInterface {
 	protected $wanCache;
 
 	/**
-	 * @param ResourceLoader|null $rl
+	 * @param ResourceLoader $rl
 	 * @param LoggerInterface|null $logger
 	 */
-	public function __construct( ResourceLoader $rl = null, LoggerInterface $logger = null ) {
+	public function __construct( ResourceLoader $rl, LoggerInterface $logger = null ) {
 		$this->resourceloader = $rl;
 		$this->logger = $logger ?: new NullLogger();
-		$this->wanCache = ObjectCache::getMainWANInstance();
+		$this->wanCache = MediaWikiServices::getInstance()->getMainWANObjectCache();
 	}
 
 	/**
@@ -191,12 +191,6 @@ class MessageBlobStore implements LoggerAwareInterface {
 	 * @return ResourceLoader
 	 */
 	protected function getResourceLoader() {
-		// Back-compat: This class supports instantiation without a ResourceLoader object.
-		// Lazy-initialise this property because most callers don't need it.
-		if ( $this->resourceloader === null ) {
-			$this->logger->warning( __CLASS__ . ' created without a ResourceLoader instance' );
-			$this->resourceloader = MediaWikiServices::getInstance()->getResourceLoader();
-		}
 		return $this->resourceloader;
 	}
 

includes/cache/localisation/LocalisationCache.php

@@ -1034,7 +1034,9 @@ class LocalisationCache {
 		# HACK: If using a null (i.e. disabled) storage backend, we
 		# can't write to the MessageBlobStore either
 		if ( $purgeBlobs && !$this->store instanceof LCStoreNull ) {
-			$blobStore = new MessageBlobStore();
+			$blobStore = new MessageBlobStore(
+				MediaWikiServices::getInstance()->getResourceLoader()
+			);
 			$blobStore->clear();
 		}
 	}

includes/installer/DatabaseUpdater.php

@@ -1074,7 +1074,9 @@ abstract class DatabaseUpdater {
 		}
 
 		// ResourceLoader: Message cache
-		$blobStore = new MessageBlobStore();
+		$blobStore = new MessageBlobStore(
+			MediaWikiServices::getInstance()->getResourceLoader()
+		);
 		$blobStore->clear();
 
 		// ResourceLoader: File-dependency cache

tests/phpunit/includes/OutputPageTest.php

@@ -2531,7 +2531,7 @@ class OutputPageTest extends MediaWikiTestCase {
 		$nonce->setAccessible( true );
 		$nonce->setValue( $out, 'secret' );
 		$rl = $out->getResourceLoader();
-		$rl->setMessageBlobStore( new NullMessageBlobStore() );
+		$rl->setMessageBlobStore( $this->createMock( MessageBlobStore::class ) );
 		$rl->register( [
 			'test.foo' => new ResourceLoaderTestModule( [
 				'script' => 'mw.test.foo( { a: true } );',
@@ -2647,7 +2647,7 @@ class OutputPageTest extends MediaWikiTestCase {
 			->method( 'buildCssLinksArray' )
 			->willReturn( [] );
 		$rl = $op->getResourceLoader();
-		$rl->setMessageBlobStore( new NullMessageBlobStore() );
+		$rl->setMessageBlobStore( $this->createMock( MessageBlobStore::class ) );
 
 		// Register custom modules
 		$rl->register( [
@@ -3051,21 +3051,3 @@ class OutputPageTest extends MediaWikiTestCase {
 		return new OutputPage( $context );
 	}
 }
-
-/**
- * MessageBlobStore that doesn't do anything
- */
-class NullMessageBlobStore extends MessageBlobStore {
-	public function get( ResourceLoader $resourceLoader, $modules, $lang ) {
-		return [];
-	}
-
-	public function updateModule( $name, ResourceLoaderModule $module, $lang ) {
-	}
-
-	public function updateMessage( $key ) {
-	}
-
-	public function clear() {
-	}
-}

tests/phpunit/includes/resourceloader/MessageBlobStoreTest.php

@@ -9,6 +9,7 @@ use Wikimedia\TestingAccessWrapper;
 class MessageBlobStoreTest extends PHPUnit\Framework\TestCase {
 
 	use MediaWikiCoversValidator;
+	use PHPUnit4And6Compat;
 
 	protected function setUp() {
 		parent::setUp();
@@ -37,7 +38,7 @@ class MessageBlobStoreTest extends PHPUnit\Framework\TestCase {
 
 	protected function makeBlobStore( $methods = null, $rl = null ) {
 		$blobStore = $this->getMockBuilder( MessageBlobStore::class )
-			->setConstructorArgs( [ $rl ] )
+			->setConstructorArgs( [ $rl ?? $this->createMock( ResourceLoader::class ) ] )
 			->setMethods( $methods )
 			->getMock();