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<?php
namespace MediaWiki\Tests\ResourceLoader;
use MediaWiki\ResourceLoader\MessageBlobStore;
use MediaWiki\ResourceLoader\ResourceLoader;
use MediaWikiCoversValidator;
use PHPUnit\Framework\TestCase;
use Psr\Log\NullLogger;
use Wikimedia\ObjectCache\HashBagOStuff;
use Wikimedia\ObjectCache\WANObjectCache;
/**
* @group ResourceLoader
* @covers \MediaWiki\ResourceLoader\MessageBlobStore
*/
class MessageBlobStoreTest extends TestCase {
use MediaWikiCoversValidator;
private const NAME = 'test.blobstore';
/** @var WANObjectCache */
private $wanCache;
/** @var float */
private $clock;
protected function setUp(): void {
parent::setUp();
$this->wanCache = new WANObjectCache( [
'cache' => new HashBagOStuff()
] );
$this->clock = 1301655600.000;
$this->wanCache->setMockTime( $this->clock );
}
public function testBlobCreation() {
$rl = new EmptyResourceLoader();
$rl->register( self::NAME, [
'factory' => function () {
return $this->makeModule( [ 'mainpage' ] );
}
] );
$blobStore = $this->makeBlobStore( null, $rl );
$blob = $blobStore->getBlob( $rl->getModule( self::NAME ), 'en' );
$this->assertEquals( '{"mainpage":"Main Page"}', $blob, 'Generated blob' );
}
public function testBlobCreation_empty() {
$module = $this->makeModule( [] );
$rl = new EmptyResourceLoader();
$blobStore = $this->makeBlobStore( null, $rl );
$blob = $blobStore->getBlob( $module, 'en' );
$this->assertEquals( '{}', $blob, 'Generated blob' );
}
public function testBlobCreation_unknownMessage() {
$module = $this->makeModule( [ 'i-dont-exist', 'mainpage', 'i-dont-exist2' ] );
$rl = new EmptyResourceLoader();
$blobStore = $this->makeBlobStore( null, $rl );
// Generating a blob should continue without errors,
// with keys of unknown messages excluded from the blob.
$blob = $blobStore->getBlob( $module, 'en' );
$this->assertEquals( '{"mainpage":"Main Page"}', $blob, 'Generated blob' );
}
public function testMessageCachingAndPurging() {
$rl = new EmptyResourceLoader();
// Register it so that MessageBlobStore::updateMessage can
// discover it from the registry as a module that uses this message.
$rl->register( self::NAME, [
'factory' => function () {
return $this->makeModule( [ 'example' ] );
}
] );
$module = $rl->getModule( self::NAME );
$blobStore = $this->makeBlobStore( [ 'fetchMessage' ], $rl );
// Advance this new WANObjectCache instance to a normal state,
// by doing one "get" and letting its hold off period expire.
// Without this, the first real "get" would lazy-initialise the
// checkKey and thus reject the first "set".
$blobStore->getBlob( $module, 'en' );
$this->clock += 20;
// Arrange version 1 of a message
$blobStore->expects( $this->once() )
->method( 'fetchMessage' )
->willReturn( 'First version' );
// Assert
$blob = $blobStore->getBlob( $module, 'en' );
$this->assertEquals( '{"example":"First version"}', $blob, 'Blob for v1' );
// Arrange version 2
$blobStore = $this->makeBlobStore( [ 'fetchMessage' ], $rl );
$blobStore->expects( $this->once() )
->method( 'fetchMessage' )
->willReturn( 'Second version' );
$this->clock += 20;
// Assert
// We do not validate whether a cached message is up-to-date.
// Instead, changes to messages will send us a purge.
// When cache is not purged or expired, it must be used.
$blob = $blobStore->getBlob( $module, 'en' );
$this->assertEquals( '{"example":"First version"}', $blob, 'Reuse cached v1 blob' );
// Purge cache
$blobStore->updateMessage( 'example' );
$this->clock += 20;
// Assert
$blob = $blobStore->getBlob( $module, 'en' );
$this->assertEquals( '{"example":"Second version"}', $blob, 'Updated blob for v2' );
}
public function testPurgeEverything() {
$module = $this->makeModule( [ 'example' ] );
$rl = new EmptyResourceLoader();
$blobStore = $this->makeBlobStore( [ 'fetchMessage' ], $rl );
// Advance this new WANObjectCache instance to a normal state.
$blobStore->getBlob( $module, 'en' );
$this->clock += 20;
// Arrange version 1 and 2
$blobStore->expects( $this->exactly( 2 ) )
->method( 'fetchMessage' )
->willReturnOnConsecutiveCalls( 'First', 'Second' );
// Assert
$blob = $blobStore->getBlob( $module, 'en' );
$this->assertEquals( '{"example":"First"}', $blob, 'Blob for v1' );
$this->clock += 20;
// Assert
$blob = $blobStore->getBlob( $module, 'en' );
$this->assertEquals( '{"example":"First"}', $blob, 'Blob for v1 again' );
// Purge everything
$blobStore::clearGlobalCacheEntry( $this->wanCache );
$this->clock += 20;
// Assert
$blob = $blobStore->getBlob( $module, 'en' );
$this->assertEquals( '{"example":"Second"}', $blob, 'Blob for v2' );
}
public function testValidateAgainstModuleRegistry() {
// Arrange version 1 of a module
$module = $this->makeModule( [ 'foo' ] );
$rl = new EmptyResourceLoader();
$blobStore = $this->makeBlobStore( [ 'fetchMessage' ], $rl );
$blobStore->expects( $this->once() )
->method( 'fetchMessage' )
->willReturnMap( [
// message key, language code, message value
[ 'foo', 'en', 'Hello' ],
] );
// Assert
$blob = $blobStore->getBlob( $module, 'en' );
$this->assertEquals( '{"foo":"Hello"}', $blob, 'Blob for v1' );
// Arrange version 2 of module
// While message values may be out of date, the set of messages returned
// must always match the set of message keys required by the module.
// We do not receive purges for this because no messages were changed.
$module = $this->makeModule( [ 'foo', 'bar' ] );
$rl = new EmptyResourceLoader();
$blobStore = $this->makeBlobStore( [ 'fetchMessage' ], $rl );
$blobStore->expects( $this->exactly( 2 ) )
->method( 'fetchMessage' )
->willReturnMap( [
// message key, language code, message value
[ 'foo', 'en', 'Hello' ],
[ 'bar', 'en', 'World' ],
] );
// Assert
$blob = $blobStore->getBlob( $module, 'en' );
$this->assertEquals( '{"foo":"Hello","bar":"World"}', $blob, 'Blob for v2' );
}
public function testSetLoggedIsVoid() {
$blobStore = $this->makeBlobStore();
$this->assertNull( $blobStore->setLogger( new NullLogger() ) );
}
private function makeBlobStore( $methods = null, $rl = null ) {
$blobStore = $this->getMockBuilder( MessageBlobStore::class )
->setConstructorArgs( [
$rl ?? $this->createMock( ResourceLoader::class ),
null,
$this->wanCache
] )
->onlyMethods( $methods ?: [] )
->getMock();
return $blobStore;
}
private function makeModule( array $messages ) {
$module = new ResourceLoaderTestModule( [ 'messages' => $messages ] );
$module->setName( self::NAME );
return $module;
}
}