ComposerPhpunitXmlCoverageEdit.php

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<?php
class ComposerPhpunitXmlCoverageEdit {
 
    public static function onEvent( $event ) {
        $IP = dirname( dirname( __DIR__ ) );
        // TODO: Support passing arbitrary directories for core (or extensions/skins).
        $args = $event->getArguments();
        if ( count( $args ) !== 1 ) {
            throw new InvalidArgumentException( 'Pass extensions/$extensionName as an argument, ' .
                'e.g. "composer phpunit:coverage-edit -- extensions/BoilerPlate"' );
        }
        $project = current( $args );
        $phpunitXml = new DomDocument();
        $phpunitXml->load( $IP . '/phpunit.xml.dist' );
        $include = iterator_to_array( $phpunitXml->getElementsByTagName( 'include' ) );
        foreach ( $include as $childNode ) {
            $childNode->parentNode->removeChild( $childNode );
        }
        $whitelistElement = $phpunitXml->createElement( 'include' );
        // TODO: Use AutoloadClasses from extension.json to load the relevant directories
        foreach ( [ 'includes', 'src', 'maintenance' ] as $dir ) {
            $dirElement = $phpunitXml->createElement( 'directory', $project . '/' . $dir );
            $dirElement->setAttribute( 'suffix', '.php' );
            $whitelistElement->appendChild( $dirElement );
 
        }
        $phpunitXml->getElementsByTagName( 'coverage' )->item( 0 )
            ->appendChild( $whitelistElement );
        $phpunitXml->formatOutput = true;
        $phpunitXml->save( $IP . '/phpunit.xml' );
    }
}