CodexTokenDefaultsTest.php
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CodexTokenDefaultsTest.php
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	<?php
	/**
	* Checks that all Codex tokens have defaults defined in mediawiki.skin.defaults.less
	*
	* @coversNothing
	*/
	class CodexTokenDefaultsTest extends MediaWikiIntegrationTestCase {

	public function testTokenDefaults() {
	$resourcesPath = __DIR__ . '/../../../resources';
	$codexTokensLess = "$resourcesPath/lib/codex-design-tokens/theme-wikimedia-ui.less";
	$defaultsLess = "$resourcesPath/src/mediawiki.less/mediawiki.skin.defaults.less";

	$codexVars = static::getVariableNames( $codexTokensLess );
	$defaultVars = static::getVariableNames( $defaultsLess );
	$missingVars = array_values( array_diff( $codexVars, $defaultVars ) );
	$this->assertEquals( [], $missingVars );
	}

	protected static function getVariableNames( $lessFilePath ) {
	// We'd like to do something like:
	// $parser = new Less_Parser;
	// $parser->parseFile( $lessFilePath, '' );
	// $parser->getCss(); // Have to call this for ->getVariables() to work; discard the result
	// return array_keys( $parser->getVariables() );
	// But that doesn't work, the Less compiler appears to crash because of the calc() and rgba()
	// calls in the variable values. Instead, use regexes :(

	$fileContents = file_get_contents( $lessFilePath );
	$matches = null;
	preg_match_all( '/^@([^:]+):/m', $fileContents, $matches, PREG_PATTERN_ORDER );
	return $matches[1];
	}
	}