Paraunit\Coverage\CoverageFetcher

Complexity

Total Complexity

8

Size/Duplication

Total Lines	75
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	4

Test Coverage

Coverage

93.1%

Importance

Changes	3
Bugs	0	Features	0

4 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	4	1
A	fetch()	0	16	3
A	coverageFileIsValid()	0	17	3
A	overrideCoverageClassDefinition()	0	12	1

<?php

namespace Paraunit\Coverage;

use Paraunit\Configuration\TempFilenameFactory;
use Paraunit\Process\AbstractParaunitProcess;
use Paraunit\Proxy\Coverage\CodeCoverage;
use Symfony\Component\Process\Exception\RuntimeException;
use Symfony\Component\Process\Process;

/**
 * Class CoverageFetcher
 * @package Paraunit\Coverage
 */
class CoverageFetcher
{
    /** @var  TempFilenameFactory */
    private $tempFilenameFactory;

    /**
     * CoverageFetcher constructor.
     * @param TempFilenameFactory $tempFilenameFactory
     */
    public function __construct(TempFilenameFactory $tempFilenameFactory)
    {
        $this->tempFilenameFactory = $tempFilenameFactory;
    }

    /**
     * @param AbstractParaunitProcess $process
     * @return CodeCoverage
     */
    public function fetch(AbstractParaunitProcess $process)
    {
        $tempFilename = $this->tempFilenameFactory->getFilenameForCoverage($process->getUniqueId());
        $codeCoverage = null;

        if ($this->coverageFileIsValid($tempFilename)) {
            $codeCoverage = require $tempFilename;
            unlink($tempFilename);
        }

        if ($codeCoverage instanceof CodeCoverage) {
            return $codeCoverage;
        }

        return new CodeCoverage();
    }

    /**
     * @param string $tempFilename
     * @return bool
     */
    private function coverageFileIsValid($tempFilename)
    {
        if (! file_exists($tempFilename)) {
            return false;
        }

        try {
            $this->overrideCoverageClassDefinition($tempFilename);

            $verificationProcess = new Process('php --syntax-check ' . $tempFilename);
            $verificationProcess->run();

            return $verificationProcess->getExitCode() === 0;
        } catch (\Exception $e) {
            return false;
        }
    }

    /**
     * @param string $tempFilename
     * @return bool
     * @throws RuntimeException
     */
    private function overrideCoverageClassDefinition($tempFilename)
    {
        $className1 = 'new SebastianBergmann\\\\CodeCoverage\\\\CodeCoverage';
        $className2 = 'new PHP_CodeCoverage';
        $newClassName = 'new Paraunit\\\\Proxy\\\\Coverage\\\\CodeCoverage';
        
        $commandLine = "sed -r -i -e 's/($className1|$className2)/$newClassName/' $tempFilename";

        $editProcess = new Process($commandLine);

        return $editProcess->run() === 0;
    }
}