Coverage.php

<?php

declare (strict_types=1);

/*
 * This file is part of phpunit/php-code-coverage.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace SebastianBergmann\CodeCoverage\Report\Xml;

use DOMElement;
use SebastianBergmann\CodeCoverage\ReportAlreadyFinalizedException;
use XMLWriter;

/**
 * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
 */
final class Coverage {
    private readonly XMLWriter $writer;
    private readonly DOMElement $contextNode;
    private bool $finalized = false;
    public function __construct(DOMElement $context, string $line) {
        $this->contextNode = $context;
        $this->writer = new XMLWriter();
        $this->writer
            ->openMemory();
        $this->writer
            ->startElementNS(null, $context->nodeName, 'https://schema.phpunit.de/coverage/1.0');
        $this->writer
            ->writeAttribute('nr', $line);
    }
    
    /**
     * @throws ReportAlreadyFinalizedException
     */
    public function addTest(string $test) : void {
        if ($this->finalized) {
            throw new ReportAlreadyFinalizedException();
        }
        $this->writer
            ->startElement('covered');
        $this->writer
            ->writeAttribute('by', $test);
        $this->writer
            ->endElement();
    }
    public function finalize() : void {
        $this->writer
            ->endElement();
        $fragment = $this->contextNode->ownerDocument
            ->createDocumentFragment();
        $fragment->appendXML($this->writer
            ->outputMemory());
        $this->contextNode->parentNode
            ->replaceChild($fragment, $this->contextNode);
        $this->finalized = true;
    }

}