ParserObserverIntegrationTest.php
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ParserObserverIntegrationTest.php
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	<?php

	namespace MediaWiki\Tests\Parser;

	use MediaWiki\Parser\ParserObserver;
	use MediaWikiIntegrationTestCase;
	use TestLogger;

	/**
	* @covers \MediaWiki\Parser\ParserObserver
	* @group Database
	*/
	class ParserObserverIntegrationTest extends MediaWikiIntegrationTestCase {

	/**
	* @param bool $duplicate
	* @param int $count
	*
	* @dataProvider provideDuplicateParse
	*/
	public function testDuplicateParse( bool $duplicate, int $count ) {
	$logger = new TestLogger( true );
	$observer = new ParserObserver( $logger );
	$this->setService( '_ParserObserver', $observer );
	$contentRenderer = $this->getServiceContainer()->getContentRenderer();
	// Create a test page. Parse it twice if a duplicate is desired, or once otherwise.
	$page = $this->getExistingTestPage();
	$contentRenderer->getParserOutput( $page->getContent(), $page->getTitle() );
	if ( $duplicate ) {
	$contentRenderer->getParserOutput( $page->getContent(), $page->getTitle() );
	}

	$this->assertCount( $count, $logger->getBuffer() );
	}

	public static function provideDuplicateParse() {
	yield [ true, 1 ];
	yield [ false, 0 ];
	}
	}