ParserObserverTest.php
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ParserObserverTest.php
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	<?php

	namespace MediaWiki\Tests\Parser;

	use DummyContentForTesting;
	use MediaWiki\Parser\ParserObserver;
	use MediaWiki\Parser\ParserOptions;
	use MediaWiki\Parser\ParserOutput;
	use MediaWiki\Title\Title;
	use MediaWikiUnitTestCase;
	use TestLogger;

	/**
	* @covers \MediaWiki\Parser\ParserObserver
	*/
	class ParserObserverTest extends MediaWikiUnitTestCase {
	/**
	* @param string $hashOne
	* @param string $hashTwo
	* @param array $expects
	*
	* @dataProvider provideDuplicateParse
	*/
	public function testDuplicateParse( string $hashOne, string $hashTwo, array $expects ) {
	$logger = new TestLogger( true );

	// ::makeTitle allows us to create a title without needing any services
	$title = Title::makeTitle(
	NS_PROJECT,
	'Duplicate Parse Test'
	);

	$options = $this->createNoOpMock( ParserOptions::class, [ 'optionsHash' ] );
	$options->method( 'optionsHash' )->willReturnOnConsecutiveCalls( $hashOne, $hashTwo );

	$content = new DummyContentForTesting( "hello world" );

	$output = new ParserOutput();
	$observer = new ParserObserver( $logger );
	$observer->notifyParse( $title, null, $options, $content, $output );
	$observer->notifyParse( $title, null, $options, $content, $output );

	$this->assertArrayEquals( $expects, $logger->getBuffer() );
	}

	public static function provideDuplicateParse() {
	yield [
	'foo',
	'bar',
	[]
	];
	yield [
	'foo',
	'foo',
	[
	[
	'debug',
	'MediaWiki\Parser\ParserObserver::notifyParse: Possibly redundant parse!'
	]
	]
	];
	}
	}