Completed
Pull Request — master (#281)
by mark
03:18
created

CoverageMerger::addCoverageFromFile()   B

Complexity

Conditions 5
Paths 4

Size

Total Lines 24
Code Lines 12

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 12
CRAP Score 5.0113

Importance

Changes 0
Metric Value
dl 0
loc 24
ccs 12
cts 13
cp 0.9231
rs 8.5125
c 0
b 0
f 0
cc 5
eloc 12
nc 4
nop 1
crap 5.0113
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<?php
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declare(strict_types=1);
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namespace ParaTest\Coverage;
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use SebastianBergmann\CodeCoverage\CodeCoverage;
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class CoverageMerger
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{
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    /**
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     * @var CodeCoverage
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     */
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    private $coverage = null;
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    /**
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     * @param CodeCoverage $coverage
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     */
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    private function addCoverage(CodeCoverage $coverage)
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    {
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        if (null === $this->coverage) {
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            $this->coverage = $coverage;
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        } else {
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            $this->coverage->merge($coverage);
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        }
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    }
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    /**
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     * Returns coverage object from file.
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     *
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     * @param \SplFileObject $coverageFile coverage file
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     *
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     * @return CodeCoverage
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     */
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    private function getCoverageObject(\SplFileObject $coverageFile): CodeCoverage
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    {
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        if ('<?php' === $coverageFile->fread(5)) {
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            return include $coverageFile->getRealPath();
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        }
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        $coverageFile->fseek(0);
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        // the PHPUnit 3.x and below
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        return unserialize($coverageFile->fread($coverageFile->getSize()));
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    }
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    /**
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     * Adds the coverage contained in $coverageFile and deletes the file afterwards.
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     *
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     * @param string $coverageFile Code coverage file
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     *
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     * @throws \RuntimeException When coverage file is empty
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     */
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    public function addCoverageFromFile(string $coverageFile = null)
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    {
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        if ($coverageFile === null || !file_exists($coverageFile)) {
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            return;
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        }
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        $file = new \SplFileObject($coverageFile);
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        if (0 === $file->getSize()) {
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            $extra = 'This means a PHPUnit process has crashed.';
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            if (!function_exists("xdebug_get_code_coverage")) {
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                $extra = 'Xdebug is disabled! Enable for coverage.';
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            }
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            throw new \RuntimeException(
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                "Coverage file {$file->getRealPath()} is empty. " . $extra
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            );
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        }
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        $this->addCoverage($this->getCoverageObject($file));
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        unlink($file->getRealPath());
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    }
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    /**
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     * Get coverage report generator.
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     *
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     * @return CoverageReporterInterface
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     */
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    public function getReporter(): CoverageReporterInterface
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    {
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        return new CoverageReporter($this->coverage);
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    }
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}
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