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path: root/tests/phpunit/includes/ExtraParserTest.php
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<?php

/**
 * Parser-related tests that don't suit for parserTests.txt
 *
 * @group Database
 */
class ExtraParserTest extends MediaWikiTestCase {

	/** @var ParserOptions */
	protected $options;
	/** @var Parser */
	protected $parser;

	protected function setUp() {
		parent::setUp();

		$contLang = Language::factory( 'en' );
		$this->setMwGlobals( array(
			'wgShowDBErrorBacktrace' => true,
			'wgLanguageCode' => 'en',
			'wgContLang' => $contLang,
			'wgLang' => Language::factory( 'en' ),
			'wgMemc' => new EmptyBagOStuff,
			'wgCleanSignatures' => true,
		) );

		$this->options = ParserOptions::newFromUserAndLang( new User, $contLang );
		$this->options->setTemplateCallback( array( __CLASS__, 'statelessFetchTemplate' ) );
		$this->parser = new Parser;

		MagicWord::clearCache();
	}

	/**
	 * @see Bug 8689
	 * @covers Parser::parse
	 */
	public function testLongNumericLinesDontKillTheParser() {
		$longLine = '1.' . str_repeat( '1234567890', 100000 ) . "\n";

		$title = Title::newFromText( 'Unit test' );
		$options = ParserOptions::newFromUser( new User() );
		$this->assertEquals( "<p>$longLine</p>",
			$this->parser->parse( $longLine, $title, $options )->getText() );
	}

	/**
	 * Test the parser entry points
	 * @covers Parser::parse
	 */
	public function testParse() {
		$title = Title::newFromText( __FUNCTION__ );
		$parserOutput = $this->parser->parse( "Test\n{{Foo}}\n{{Bar}}", $title, $this->options );
		$this->assertEquals(
			"<p>Test\nContent of <i>Template:Foo</i>\nContent of <i>Template:Bar</i>\n</p>",
			$parserOutput->getText()
		);
	}

	/**
	 * @covers Parser::preSaveTransform
	 */
	public function testPreSaveTransform() {
		$title = Title::newFromText( __FUNCTION__ );
		$outputText = $this->parser->preSaveTransform(
			"Test\r\n{{subst:Foo}}\n{{Bar}}",
			$title,
			new User(),
			$this->options
		);

		$this->assertEquals( "Test\nContent of ''Template:Foo''\n{{Bar}}", $outputText );
	}

	/**
	 * @covers Parser::preprocess
	 */
	public function testPreprocess() {
		$title = Title::newFromText( __FUNCTION__ );
		$outputText = $this->parser->preprocess( "Test\n{{Foo}}\n{{Bar}}", $title, $this->options );

		$this->assertEquals(
			"Test\nContent of ''Template:Foo''\nContent of ''Template:Bar''",
			$outputText
		);
	}

	/**
	 * cleanSig() makes all templates substs and removes tildes
	 * @covers Parser::cleanSig
	 */
	public function testCleanSig() {
		$title = Title::newFromText( __FUNCTION__ );
		$outputText = $this->parser->cleanSig( "{{Foo}} ~~~~" );

		$this->assertEquals( "{{SUBST:Foo}} ", $outputText );
	}

	/**
	 * cleanSig() should do nothing if disabled
	 * @covers Parser::cleanSig
	 */
	public function testCleanSigDisabled() {
		$this->setMwGlobals( 'wgCleanSignatures', false );

		$title = Title::newFromText( __FUNCTION__ );
		$outputText = $this->parser->cleanSig( "{{Foo}} ~~~~" );

		$this->assertEquals( "{{Foo}} ~~~~", $outputText );
	}

	/**
	 * cleanSigInSig() just removes tildes
	 * @dataProvider provideStringsForCleanSigInSig
	 * @covers Parser::cleanSigInSig
	 */
	public function testCleanSigInSig( $in, $out ) {
		$this->assertEquals( Parser::cleanSigInSig( $in ), $out );
	}

	public static function provideStringsForCleanSigInSig() {
		return array(
			array( "{{Foo}} ~~~~", "{{Foo}} " ),
			array( "~~~", "" ),
			array( "~~~~~", "" ),
		);
	}

	/**
	 * @covers Parser::getSection
	 */
	public function testGetSection() {
		$outputText2 = $this->parser->getSection(
			"Section 0\n== Heading 1 ==\nSection 1\n=== Heading 2 ===\n"
				. "Section 2\n== Heading 3 ==\nSection 3\n",
			2
		);
		$outputText1 = $this->parser->getSection(
			"Section 0\n== Heading 1 ==\nSection 1\n=== Heading 2 ===\n"
				. "Section 2\n== Heading 3 ==\nSection 3\n",
			1
		);

		$this->assertEquals( "=== Heading 2 ===\nSection 2", $outputText2 );
		$this->assertEquals( "== Heading 1 ==\nSection 1\n=== Heading 2 ===\nSection 2", $outputText1 );
	}

	/**
	 * @covers Parser::replaceSection
	 */
	public function testReplaceSection() {
		$outputText = $this->parser->replaceSection(
			"Section 0\n== Heading 1 ==\nSection 1\n=== Heading 2 ===\n"
				. "Section 2\n== Heading 3 ==\nSection 3\n",
			1,
			"New section 1"
		);

		$this->assertEquals( "Section 0\nNew section 1\n\n== Heading 3 ==\nSection 3", $outputText );
	}

	/**
	 * Templates and comments are not affected, but noinclude/onlyinclude is.
	 * @covers Parser::getPreloadText
	 */
	public function testGetPreloadText() {
		$title = Title::newFromText( __FUNCTION__ );
		$outputText = $this->parser->getPreloadText(
			"{{Foo}}<noinclude> censored</noinclude> information <!-- is very secret -->",
			$title,
			$this->options
		);

		$this->assertEquals( "{{Foo}} information <!-- is very secret -->", $outputText );
	}

	/**
	 * @param Title $title
	 * @param bool $parser
	 *
	 * @return array
	 */
	static function statelessFetchTemplate( $title, $parser = false ) {
		$text = "Content of ''" . $title->getFullText() . "''";
		$deps = array();

		return array(
			'text' => $text,
			'finalTitle' => $title,
			'deps' => $deps );
	}

	/**
	 * @group Database
	 * @covers Parser::parse
	 */
	public function testTrackingCategory() {
		$title = Title::newFromText( __FUNCTION__ );
		$catName = wfMessage( 'broken-file-category' )->inContentLanguage()->text();
		$cat = Title::makeTitleSafe( NS_CATEGORY, $catName );
		$expected = array( $cat->getDBkey() );
		$parserOutput = $this->parser->parse( "[[file:nonexistent]]", $title, $this->options );
		$result = $parserOutput->getCategoryLinks();
		$this->assertEquals( $expected, $result );
	}

	/**
	 * @group Database
	 * @covers Parser::parse
	 */
	public function testTrackingCategorySpecial() {
		// Special pages shouldn't have tracking cats.
		$title = SpecialPage::getTitleFor( 'Contributions' );
		$parserOutput = $this->parser->parse( "[[file:nonexistent]]", $title, $this->options );
		$result = $parserOutput->getCategoryLinks();
		$this->assertEmpty( $result );
	}
}