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<?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;
use function array_diff;
use function array_diff_key;
use function array_flip;
use function array_keys;
use function array_merge;
use function array_unique;
use function array_values;
use function count;
use function explode;
use function get_class;
use function is_array;
use function sort;
use PHPUnit\Framework\TestCase;
use PHPUnit\Runner\PhptTestCase;
use PHPUnit\Util\Test;
use ReflectionClass;
use SebastianBergmann\CodeCoverage\Driver\Driver;
use SebastianBergmann\CodeCoverage\Node\Builder;
use SebastianBergmann\CodeCoverage\Node\Directory;
use SebastianBergmann\CodeCoverage\StaticAnalysis\CachingFileAnalyser;
use SebastianBergmann\CodeCoverage\StaticAnalysis\FileAnalyser;
use SebastianBergmann\CodeCoverage\StaticAnalysis\ParsingFileAnalyser;
use SebastianBergmann\CodeUnitReverseLookup\Wizard;
/**
* Provides collection functionality for PHP code coverage information.
*/
final class CodeCoverage
{
private const UNCOVERED_FILES = 'UNCOVERED_FILES';
/**
* @var Driver
*/
private $driver;
/**
* @var Filter
*/
private $filter;
/**
* @var Wizard
*/
private $wizard;
/**
* @var bool
*/
private $checkForUnintentionallyCoveredCode = false;
/**
* @var bool
*/
private $includeUncoveredFiles = true;
/**
* @var bool
*/
private $processUncoveredFiles = false;
/**
* @var bool
*/
private $ignoreDeprecatedCode = false;
/**
* @var null|PhptTestCase|string|TestCase
*/
private $currentId;
/**
* Code coverage data.
*
* @var ProcessedCodeCoverageData
*/
private $data;
/**
* @var bool
*/
private $useAnnotationsForIgnoringCode = true;
/**
* Test data.
*
* @var array
*/
private $tests = [];
/**
* @psalm-var list<class-string>
*/
private $parentClassesExcludedFromUnintentionallyCoveredCodeCheck = [];
/**
* @var ?FileAnalyser
*/
private $analyser;
/**
* @var ?string
*/
private $cacheDirectory;
public function __construct(Driver $driver, Filter $filter)
{
$this->driver = $driver;
$this->filter = $filter;
$this->data = new ProcessedCodeCoverageData;
$this->wizard = new Wizard;
}
/**
* Returns the code coverage information as a graph of node objects.
*/
public function getReport(): Directory
{
return (new Builder($this->analyser()))->build($this);
}
/**
* Clears collected code coverage data.
*/
public function clear(): void
{
$this->currentId = null;
$this->data = new ProcessedCodeCoverageData;
$this->tests = [];
}
/**
* Returns the filter object used.
*/
public function filter(): Filter
{
return $this->filter;
}
/**
* Returns the collected code coverage data.
*/
public function getData(bool $raw = false): ProcessedCodeCoverageData
{
if (!$raw) {
if ($this->processUncoveredFiles) {
$this->processUncoveredFilesFromFilter();
} elseif ($this->includeUncoveredFiles) {
$this->addUncoveredFilesFromFilter();
}
}
return $this->data;
}
/**
* Sets the coverage data.
*/
public function setData(ProcessedCodeCoverageData $data): void
{
$this->data = $data;
}
/**
* Returns the test data.
*/
public function getTests(): array
{
return $this->tests;
}
/**
* Sets the test data.
*/
public function setTests(array $tests): void
{
$this->tests = $tests;
}
/**
* Start collection of code coverage information.
*
* @param PhptTestCase|string|TestCase $id
*/
public function start($id, bool $clear = false): void
{
if ($clear) {
$this->clear();
}
$this->currentId = $id;
$this->driver->start();
}
/**
* Stop collection of code coverage information.
*
* @param array|false $linesToBeCovered
*/
public function stop(bool $append = true, $linesToBeCovered = [], array $linesToBeUsed = []): RawCodeCoverageData
{
if (!is_array($linesToBeCovered) && $linesToBeCovered !== false) {
throw new InvalidArgumentException(
'$linesToBeCovered must be an array or false'
);
}
$data = $this->driver->stop();
$this->append($data, null, $append, $linesToBeCovered, $linesToBeUsed);
$this->currentId = null;
return $data;
}
/**
* Appends code coverage data.
*
* @param PhptTestCase|string|TestCase $id
* @param array|false $linesToBeCovered
*
* @throws ReflectionException
* @throws TestIdMissingException
* @throws UnintentionallyCoveredCodeException
*/
public function append(RawCodeCoverageData $rawData, $id = null, bool $append = true, $linesToBeCovered = [], array $linesToBeUsed = []): void
{
if ($id === null) {
$id = $this->currentId;
}
if ($id === null) {
throw new TestIdMissingException;
}
$this->applyFilter($rawData);
$this->applyExecutableLinesFilter($rawData);
if ($this->useAnnotationsForIgnoringCode) {
$this->applyIgnoredLinesFilter($rawData);
}
$this->data->initializeUnseenData($rawData);
if (!$append) {
return;
}
if ($id !== self::UNCOVERED_FILES) {
$this->applyCoversAnnotationFilter(
$rawData,
$linesToBeCovered,
$linesToBeUsed
);
if (empty($rawData->lineCoverage())) {
return;
}
$size = 'unknown';
$status = -1;
$fromTestcase = false;
if ($id instanceof TestCase) {
$fromTestcase = true;
$_size = $id->getSize();
if ($_size === Test::SMALL) {
$size = 'small';
} elseif ($_size === Test::MEDIUM) {
$size = 'medium';
} elseif ($_size === Test::LARGE) {
$size = 'large';
}
$status = $id->getStatus();
$id = get_class($id) . '::' . $id->getName();
} elseif ($id instanceof PhptTestCase) {
$fromTestcase = true;
$size = 'large';
$id = $id->getName();
}
$this->tests[$id] = ['size' => $size, 'status' => $status, 'fromTestcase' => $fromTestcase];
$this->data->markCodeAsExecutedByTestCase($id, $rawData);
}
}
/**
* Merges the data from another instance.
*/
public function merge(self $that): void
{
$this->filter->includeFiles(
$that->filter()->files()
);
$this->data->merge($that->data);
$this->tests = array_merge($this->tests, $that->getTests());
}
public function enableCheckForUnintentionallyCoveredCode(): void
{
$this->checkForUnintentionallyCoveredCode = true;
}
public function disableCheckForUnintentionallyCoveredCode(): void
{
$this->checkForUnintentionallyCoveredCode = false;
}
public function includeUncoveredFiles(): void
{
$this->includeUncoveredFiles = true;
}
public function excludeUncoveredFiles(): void
{
$this->includeUncoveredFiles = false;
}
public function processUncoveredFiles(): void
{
$this->processUncoveredFiles = true;
}
public function doNotProcessUncoveredFiles(): void
{
$this->processUncoveredFiles = false;
}
public function enableAnnotationsForIgnoringCode(): void
{
$this->useAnnotationsForIgnoringCode = true;
}
public function disableAnnotationsForIgnoringCode(): void
{
$this->useAnnotationsForIgnoringCode = false;
}
public function ignoreDeprecatedCode(): void
{
$this->ignoreDeprecatedCode = true;
}
public function doNotIgnoreDeprecatedCode(): void
{
$this->ignoreDeprecatedCode = false;
}
/**
* @psalm-assert-if-true !null $this->cacheDirectory
*/
public function cachesStaticAnalysis(): bool
{
return $this->cacheDirectory !== null;
}
public function cacheStaticAnalysis(string $directory): void
{
$this->cacheDirectory = $directory;
}
public function doNotCacheStaticAnalysis(): void
{
$this->cacheDirectory = null;
}
/**
* @throws StaticAnalysisCacheNotConfiguredException
*/
public function cacheDirectory(): string
{
if (!$this->cachesStaticAnalysis()) {
throw new StaticAnalysisCacheNotConfiguredException(
'The static analysis cache is not configured'
);
}
return $this->cacheDirectory;
}
/**
* @psalm-param class-string $className
*/
public function excludeSubclassesOfThisClassFromUnintentionallyCoveredCodeCheck(string $className): void
{
$this->parentClassesExcludedFromUnintentionallyCoveredCodeCheck[] = $className;
}
public function enableBranchAndPathCoverage(): void
{
$this->driver->enableBranchAndPathCoverage();
}
public function disableBranchAndPathCoverage(): void
{
$this->driver->disableBranchAndPathCoverage();
}
public function collectsBranchAndPathCoverage(): bool
{
return $this->driver->collectsBranchAndPathCoverage();
}
public function detectsDeadCode(): bool
{
return $this->driver->detectsDeadCode();
}
/**
* Applies the @covers annotation filtering.
*
* @param array|false $linesToBeCovered
*
* @throws ReflectionException
* @throws UnintentionallyCoveredCodeException
*/
private function applyCoversAnnotationFilter(RawCodeCoverageData $rawData, $linesToBeCovered, array $linesToBeUsed): void
{
if ($linesToBeCovered === false) {
$rawData->clear();
return;
}
if (empty($linesToBeCovered)) {
return;
}
if ($this->checkForUnintentionallyCoveredCode &&
(!$this->currentId instanceof TestCase ||
(!$this->currentId->isMedium() && !$this->currentId->isLarge()))) {
$this->performUnintentionallyCoveredCodeCheck($rawData, $linesToBeCovered, $linesToBeUsed);
}
$rawLineData = $rawData->lineCoverage();
$filesWithNoCoverage = array_diff_key($rawLineData, $linesToBeCovered);
foreach (array_keys($filesWithNoCoverage) as $fileWithNoCoverage) {
$rawData->removeCoverageDataForFile($fileWithNoCoverage);
}
if (is_array($linesToBeCovered)) {
foreach ($linesToBeCovered as $fileToBeCovered => $includedLines) {
$rawData->keepLineCoverageDataOnlyForLines($fileToBeCovered, $includedLines);
$rawData->keepFunctionCoverageDataOnlyForLines($fileToBeCovered, $includedLines);
}
}
}
private function applyFilter(RawCodeCoverageData $data): void
{
if ($this->filter->isEmpty()) {
return;
}
foreach (array_keys($data->lineCoverage()) as $filename) {
if ($this->filter->isExcluded($filename)) {
$data->removeCoverageDataForFile($filename);
}
}
}
private function applyExecutableLinesFilter(RawCodeCoverageData $data): void
{
foreach (array_keys($data->lineCoverage()) as $filename) {
if (!$this->filter->isFile($filename)) {
continue;
}
$linesToBranchMap = $this->analyser()->executableLinesIn($filename);
$data->keepLineCoverageDataOnlyForLines(
$filename,
array_keys($linesToBranchMap)
);
$data->markExecutableLineByBranch(
$filename,
$linesToBranchMap
);
}
}
private function applyIgnoredLinesFilter(RawCodeCoverageData $data): void
{
foreach (array_keys($data->lineCoverage()) as $filename) {
if (!$this->filter->isFile($filename)) {
continue;
}
$data->removeCoverageDataForLines(
$filename,
$this->analyser()->ignoredLinesFor($filename)
);
}
}
/**
* @throws UnintentionallyCoveredCodeException
*/
private function addUncoveredFilesFromFilter(): void
{
$uncoveredFiles = array_diff(
$this->filter->files(),
$this->data->coveredFiles()
);
foreach ($uncoveredFiles as $uncoveredFile) {
if ($this->filter->isFile($uncoveredFile)) {
$this->append(
RawCodeCoverageData::fromUncoveredFile(
$uncoveredFile,
$this->analyser()
),
self::UNCOVERED_FILES
);
}
}
}
/**
* @throws UnintentionallyCoveredCodeException
*/
private function processUncoveredFilesFromFilter(): void
{
$uncoveredFiles = array_diff(
$this->filter->files(),
$this->data->coveredFiles()
);
$this->driver->start();
foreach ($uncoveredFiles as $uncoveredFile) {
if ($this->filter->isFile($uncoveredFile)) {
include_once $uncoveredFile;
}
}
$this->append($this->driver->stop(), self::UNCOVERED_FILES);
}
/**
* @throws ReflectionException
* @throws UnintentionallyCoveredCodeException
*/
private function performUnintentionallyCoveredCodeCheck(RawCodeCoverageData $data, array $linesToBeCovered, array $linesToBeUsed): void
{
$allowedLines = $this->getAllowedLines(
$linesToBeCovered,
$linesToBeUsed
);
$unintentionallyCoveredUnits = [];
foreach ($data->lineCoverage() as $file => $_data) {
foreach ($_data as $line => $flag) {
if ($flag === 1 && !isset($allowedLines[$file][$line])) {
$unintentionallyCoveredUnits[] = $this->wizard->lookup($file, $line);
}
}
}
$unintentionallyCoveredUnits = $this->processUnintentionallyCoveredUnits($unintentionallyCoveredUnits);
if (!empty($unintentionallyCoveredUnits)) {
throw new UnintentionallyCoveredCodeException(
$unintentionallyCoveredUnits
);
}
}
private function getAllowedLines(array $linesToBeCovered, array $linesToBeUsed): array
{
$allowedLines = [];
foreach (array_keys($linesToBeCovered) as $file) {
if (!isset($allowedLines[$file])) {
$allowedLines[$file] = [];
}
$allowedLines[$file] = array_merge(
$allowedLines[$file],
$linesToBeCovered[$file]
);
}
foreach (array_keys($linesToBeUsed) as $file) {
if (!isset($allowedLines[$file])) {
$allowedLines[$file] = [];
}
$allowedLines[$file] = array_merge(
$allowedLines[$file],
$linesToBeUsed[$file]
);
}
foreach (array_keys($allowedLines) as $file) {
$allowedLines[$file] = array_flip(
array_unique($allowedLines[$file])
);
}
return $allowedLines;
}
/**
* @throws ReflectionException
*/
private function processUnintentionallyCoveredUnits(array $unintentionallyCoveredUnits): array
{
$unintentionallyCoveredUnits = array_unique($unintentionallyCoveredUnits);
sort($unintentionallyCoveredUnits);
foreach (array_keys($unintentionallyCoveredUnits) as $k => $v) {
$unit = explode('::', $unintentionallyCoveredUnits[$k]);
if (count($unit) !== 2) {
continue;
}
try {
$class = new ReflectionClass($unit[0]);
foreach ($this->parentClassesExcludedFromUnintentionallyCoveredCodeCheck as $parentClass) {
if ($class->isSubclassOf($parentClass)) {
unset($unintentionallyCoveredUnits[$k]);
break;
}
}
} catch (\ReflectionException $e) {
throw new ReflectionException(
$e->getMessage(),
$e->getCode(),
$e
);
}
}
return array_values($unintentionallyCoveredUnits);
}
private function analyser(): FileAnalyser
{
if ($this->analyser !== null) {
return $this->analyser;
}
$this->analyser = new ParsingFileAnalyser(
$this->useAnnotationsForIgnoringCode,
$this->ignoreDeprecatedCode
);
if ($this->cachesStaticAnalysis()) {
$this->analyser = new CachingFileAnalyser(
$this->cacheDirectory,
$this->analyser
);
}
return $this->analyser;
}
}
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