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<?php |
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namespace SMW\Tests\MediaWiki; |
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use SMW\MediaWiki\PageUpdater; |
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/** |
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* @covers \SMW\MediaWiki\PageUpdater |
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* @group semantic-mediawiki |
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* |
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* @license GNU GPL v2+ |
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* @since 2.1 |
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* |
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* @author mwjames |
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*/ |
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class PageUpdaterTest extends \PHPUnit_Framework_TestCase { |
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private $connection; |
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protected function setUp() { |
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parent::setup(); |
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$this->connection = $this->getMockBuilder( '\SMW\MediaWiki\Database' ) |
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->disableOriginalConstructor() |
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->getMock(); |
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} |
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public function testCanConstruct() { |
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$this->assertInstanceOf( |
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'\SMW\MediaWiki\PageUpdater', |
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new PageUpdater() |
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); |
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} |
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public function testCanUpdate() { |
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$instance = new PageUpdater(); |
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$this->assertInternalType( |
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'boolean', |
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$instance->canUpdate() |
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); |
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} |
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/** |
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* @dataProvider purgeMethodProvider |
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*/ |
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public function testPurge( $purgeMethod, $titleMethod ) { |
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$title = $this->getMockBuilder( '\Title' ) |
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->disableOriginalConstructor() |
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->getMock(); |
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$title->expects( $this->once() ) |
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->method( 'getDBKey' ) |
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->will( $this->returnValue( 'Foo' ) ); |
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$title->expects( $this->once() ) |
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->method( $titleMethod ); |
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$instance = new PageUpdater(); |
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$instance->addPage( $title ); |
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call_user_func( [ $instance, $purgeMethod ] ); |
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} |
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public function testDisablePurgeHtmlCache() { |
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$title = $this->getMockBuilder( '\Title' ) |
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->disableOriginalConstructor() |
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->getMock(); |
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$title->expects( $this->once() ) |
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->method( 'getDBKey' ) |
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->will( $this->returnValue( 'Foo' ) ); |
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$title->expects( $this->never() ) |
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->method( 'touchLinks' ); |
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$instance = new PageUpdater(); |
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$instance->addPage( $title ); |
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$instance->isHtmlCacheUpdate( false ); |
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$instance->doPurgeHtmlCache(); |
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} |
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public function testFilterDuplicatePages() { |
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$title = $this->getMockBuilder( '\Title' ) |
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->disableOriginalConstructor() |
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->getMock(); |
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$title->expects( $this->exactly( 2 ) ) |
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->method( 'getDBKey' ) |
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->will( $this->returnValue( 'Foo' ) ); |
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$title->expects( $this->once() ) |
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->method( 'invalidateCache' ); |
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$instance = new PageUpdater(); |
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$instance->addPage( $title ); |
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$instance->addPage( $title ); |
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$instance->doPurgeParserCache(); |
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} |
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/** |
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* @dataProvider purgeMethodProvider |
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*/ |
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public function testPurgeOnTransactionIdle( $purgeMethod, $titleMethod ) { |
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$this->connection->expects( $this->once() ) |
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->method( 'onTransactionIdle' ) |
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->will( $this->returnCallback( function( $callback ) { |
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return call_user_func( $callback ); } |
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) ); |
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$title = $this->getMockBuilder( '\Title' ) |
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->disableOriginalConstructor() |
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->getMock(); |
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$title->expects( $this->once() ) |
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->method( 'getDBKey' ) |
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->will( $this->returnValue( 'Foo' ) ); |
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$title->expects( $this->once() ) |
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->method( $titleMethod ); |
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$instance = new PageUpdater( $this->connection ); |
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$instance->addPage( $title ); |
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$instance->waitOnTransactionIdle(); |
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call_user_func( [ $instance, $purgeMethod ] ); |
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} |
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/** |
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* @dataProvider purgeMethodProvider |
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*/ |
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public function testPurgeWillNotWaitOnTransactionIdleForMissingConnection( $purgeMethod, $titleMethod ) { |
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$title = $this->getMockBuilder( '\Title' ) |
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->disableOriginalConstructor() |
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->getMock(); |
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$title->expects( $this->once() ) |
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->method( 'getDBKey' ) |
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->will( $this->returnValue( 'Foo' ) ); |
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$title->expects( $this->once() ) |
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->method( $titleMethod ); |
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$instance = new PageUpdater(); |
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$instance->addPage( $title ); |
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$instance->waitOnTransactionIdle(); |
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call_user_func( [ $instance, $purgeMethod ] ); |
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} |
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/** |
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* @dataProvider purgeMethodProvider |
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*/ |
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public function testPurgeWillNotWaitOnTransactionIdleWhenCommandLineIsTrue( $purgeMethod, $titleMethod ) { |
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$this->connection->expects( $this->never() ) |
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->method( 'onTransactionIdle' ); |
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$title = $this->getMockBuilder( '\Title' ) |
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->disableOriginalConstructor() |
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->getMock(); |
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$title->expects( $this->once() ) |
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->method( 'getDBKey' ) |
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->will( $this->returnValue( 'Foo' ) ); |
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$title->expects( $this->once() ) |
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->method( $titleMethod ); |
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$instance = new PageUpdater( $this->connection ); |
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$instance->addPage( $title ); |
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$instance->isCommandLineMode( true ); |
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$instance->waitOnTransactionIdle(); |
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call_user_func( [ $instance, $purgeMethod ] ); |
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} |
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public function testAddNullPage() { |
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$title = $this->getMockBuilder( '\Title' ) |
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->disableOriginalConstructor() |
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->getMock(); |
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$title->expects( $this->never() ) |
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->method( 'getDBKey' ) |
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->will( $this->returnValue( 'Foo' ) ); |
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$instance = new PageUpdater(); |
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$instance->addPage( null ); |
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} |
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/** |
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* @dataProvider purgeMethodProvider |
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*/ |
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public function testPushPendingWaitableUpdate( $purgeMethod, $titleMethod ) { |
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$this->connection->expects( $this->once() ) |
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->method( 'onTransactionIdle' ) |
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->will( $this->returnCallback( function( $callback ) { |
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return call_user_func( $callback ); } |
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) ); |
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$title = $this->getMockBuilder( '\Title' ) |
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->disableOriginalConstructor() |
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->getMock(); |
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$title->expects( $this->once() ) |
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->method( 'getDBKey' ) |
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->will( $this->returnValue( 'Foo' ) ); |
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$title->expects( $this->once() ) |
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->method( $titleMethod ); |
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$instance = new PageUpdater( $this->connection ); |
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$instance->addPage( $title ); |
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$instance->markAsPending(); |
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$instance->waitOnTransactionIdle(); |
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// To avoid the DeferredUpdates queue |
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$instance->isCommandLineMode( true ); |
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call_user_func( [ $instance, $purgeMethod ] ); |
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$instance->pushUpdate(); |
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} |
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public function testPurgeCacheAsPoolPurge() { |
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$row = new \stdClass; |
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$row->page_id = 42; |
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$this->connection->expects( $this->once() ) |
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->method( 'select' ) |
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->will( $this->returnValue( array( $row ) ) ); |
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$this->connection->expects( $this->once() ) |
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->method( 'update' ); |
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$this->connection->expects( $this->once() ) |
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->method( 'onTransactionIdle' ) |
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->will( $this->returnCallback( function( $callback ) { |
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return call_user_func( $callback ); } |
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) ); |
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$title = $this->getMockBuilder( '\Title' ) |
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->disableOriginalConstructor() |
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->getMock(); |
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$title->expects( $this->once() ) |
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->method( 'getDBKey' ) |
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->will( $this->returnValue( 'Foo' ) ); |
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$title->expects( $this->never() ) |
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->method( 'invalidateCache' ); |
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$instance = new PageUpdater( $this->connection ); |
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$instance->addPage( $title ); |
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$instance->asPoolPurge(); |
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$instance->waitOnTransactionIdle(); |
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$instance->doPurgeParserCache(); |
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} |
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public function purgeMethodProvider() { |
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$provider[] = array( |
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'doPurgeParserCache', |
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'invalidateCache' |
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); |
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$provider[] = array( |
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'doPurgeHtmlCache', |
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'touchLinks' |
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); |
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$provider[] = array( |
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'doPurgeWebCache', |
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'purgeSquid' |
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); |
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return $provider; |
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} |
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} |
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Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArray
is initialized the first time when the foreach loop is entered. You can also see that the value of thebar
key is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.