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1<?php
2
3declare(strict_types=1);
4
5/**
6 * Fast Forward Development Tools for PHP projects.
7 *
8 * This file is part of fast-forward/dev-tools project.
9 *
10 * @author   Felipe Sayão Lobato Abreu <github@mentordosnerds.com>
11 * @license  https://opensource.org/licenses/MIT MIT License
12 *
13 * @see      https://github.com/php-fast-forward/
14 * @see      https://github.com/php-fast-forward/dev-tools
15 * @see      https://github.com/php-fast-forward/dev-tools/issues
16 * @see      https://php-fast-forward.github.io/dev-tools/
17 * @see      https://datatracker.ietf.org/doc/html/rfc2119
18 */
19
20namespace FastForward\DevTools\PhpUnit\Coverage;
21
22use RuntimeException;
23use SebastianBergmann\CodeCoverage\CodeCoverage;
24
25use function is_file;
26
27/**
28 * Loads line coverage metrics from the serialized PHPUnit `coverage-php` output.
29 */
30  class CoverageSummaryLoader implements CoverageSummaryLoaderInterface
31{
32    /**
33     * @param string $coverageReportPath Path to the PHPUnit `coverage-php` report file
34     *
35     * @return CoverageSummary Extracted line coverage summary
36     *
37     * @throws RuntimeException When the report file does not exist or contains invalid data
38     */
39    public function load(string $coverageReportPath): CoverageSummary
40    {
41        if (! is_file($coverageReportPath)) {
42            throw new RuntimeException(\sprintf('PHPUnit coverage report not found: %s', $coverageReportPath));
43        }
44
45        /** @var mixed $coverage */
46        $coverage = require $coverageReportPath;
47
48        if (! $coverage instanceof CodeCoverage) {
49            throw new RuntimeException(\sprintf('PHPUnit coverage report is invalid: %s', $coverageReportPath));
50        }
51
52        $report = $coverage->getReport();
53
54        return new CoverageSummary($report->numberOfExecutedLines(), $report->numberOfExecutableLines());
55    }
56}