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<?php
/*
* This file is part of the php-code-coverage package.
*
* (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 PHPUnit\Framework\TestCase;
use PHPUnit\Runner\PhptTestCase;
use PHPUnit\Util\Test;
use SebastianBergmann\CodeCoverage\Driver\Driver;
use SebastianBergmann\CodeCoverage\Driver\PHPDBG;
use SebastianBergmann\CodeCoverage\Driver\Xdebug;
use SebastianBergmann\CodeCoverage\Node\Builder;
use SebastianBergmann\CodeCoverage\Node\Directory;
use SebastianBergmann\CodeUnitReverseLookup\Wizard;
use SebastianBergmann\Environment\Runtime;
/**
* Provides collection functionality for PHP code coverage information.
*/
final class CodeCoverage
{
/**
* @var Driver
*/
private $driver;
/**
* @var Filter
*/
private $filter;
/**
* @var Wizard
*/
private $wizard;
/**
* @var bool
*/
private $cacheTokens = false;
/**
* @var bool
*/
private $checkForUnintentionallyCoveredCode = false;
/**
* @var bool
*/
private $forceCoversAnnotation = false;
/**
* @var bool
*/
private $checkForUnexecutedCoveredCode = false;
/**
* @var bool
*/
private $checkForMissingCoversAnnotation = false;
/**
* @var bool
*/
private $addUncoveredFilesFromWhitelist = true;
/**
* @var bool
*/
private $processUncoveredFilesFromWhitelist = false;
/**
* @var bool
*/
private $ignoreDeprecatedCode = false;
/**
* @var PhptTestCase|string|TestCase
*/
private $currentId;
/**
* Code coverage data.
*
* @var array
*/
private $data = [];
/**
* @var array
*/
private $ignoredLines = [];
/**
* @var bool
*/
private $disableIgnoredLines = false;
/**
* Test data.
*
* @var array
*/
private $tests = [];
/**
* @var string[]
*/
private $unintentionallyCoveredSubclassesWhitelist = [];
/**
* Determine if the data has been initialized or not
*
* @var bool
*/
private $isInitialized = false;
/**
* Determine whether we need to check for dead and unused code on each test
*
* @var bool
*/
private $shouldCheckForDeadAndUnused = true;
/**
* @var Directory
*/
private $report;
/**
* @throws RuntimeException
*/
public function __construct(Driver $driver = null, Filter $filter = null)
{
if ($filter === null) {
$filter = new Filter;
}
if ($driver === null) {
$driver = $this->selectDriver($filter);
}
$this->driver = $driver;
$this->filter = $filter;
$this->wizard = new Wizard;
}
/**
* Returns the code coverage information as a graph of node objects.
*/
public function getReport(): Directory
{
if ($this->report === null) {
$builder = new Builder;
$this->report = $builder->build($this);
}
return $this->report;
}
/**
* Clears collected code coverage data.
*/
public function clear(): void
{
$this->isInitialized = false;
$this->currentId = null;
$this->data = [];
$this->tests = [];
$this->report = null;
}
/**
* Returns the filter object used.
*/
public function filter(): Filter
{
return $this->filter;
}
/**
* Returns the collected code coverage data.
*/
public function getData(bool $raw = false): array
{
if (!$raw && $this->addUncoveredFilesFromWhitelist) {
$this->addUncoveredFilesFromWhitelist();
}
return $this->data;
}
/**
* Sets the coverage data.
*/
public function setData(array $data): void
{
$this->data = $data;
$this->report = null;
}
/**
* 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 $id
*
* @throws RuntimeException
*/
public function start($id, bool $clear = false): void
{
if ($clear) {
$this->clear();
}
if ($this->isInitialized === false) {
$this->initializeData();
}
$this->currentId = $id;
$this->driver->start($this->shouldCheckForDeadAndUnused);
}
/**
* Stop collection of code coverage information.
*
* @param array|false $linesToBeCovered
*
* @throws MissingCoversAnnotationException
* @throws CoveredCodeNotExecutedException
* @throws RuntimeException
* @throws InvalidArgumentException
* @throws \ReflectionException
*/
public function stop(bool $append = true, $linesToBeCovered = [], array $linesToBeUsed = [], bool $ignoreForceCoversAnnotation = false): array
{
if (!\is_array($linesToBeCovered) && $linesToBeCovered !== false) {
throw InvalidArgumentException::create(
2,
'array or false'
);
}
$data = $this->driver->stop();
$this->append($data, null, $append, $linesToBeCovered, $linesToBeUsed, $ignoreForceCoversAnnotation);
$this->currentId = null;
return $data;
}
/**
* Appends code coverage data.
*
* @param PhptTestCase|string|TestCase $id
* @param array|false $linesToBeCovered
*
* @throws \SebastianBergmann\CodeCoverage\UnintentionallyCoveredCodeException
* @throws \SebastianBergmann\CodeCoverage\MissingCoversAnnotationException
* @throws \SebastianBergmann\CodeCoverage\CoveredCodeNotExecutedException
* @throws \ReflectionException
* @throws \SebastianBergmann\CodeCoverage\InvalidArgumentException
* @throws RuntimeException
*/
public function append(array $data, $id = null, bool $append = true, $linesToBeCovered = [], array $linesToBeUsed = [], bool $ignoreForceCoversAnnotation = false): void
{
if ($id === null) {
$id = $this->currentId;
}
if ($id === null) {
throw new RuntimeException;
}
$this->applyWhitelistFilter($data);
$this->applyIgnoredLinesFilter($data);
$this->initializeFilesThatAreSeenTheFirstTime($data);
if (!$append) {
return;
}
if ($id !== 'UNCOVERED_FILES_FROM_WHITELIST') {
$this->applyCoversAnnotationFilter(
$data,
$linesToBeCovered,
$linesToBeUsed,
$ignoreForceCoversAnnotation
);
}
if (empty($data)) {
return;
}
$size = 'unknown';
$status = -1;
if ($id instanceof TestCase) {
$_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) {
$size = 'large';
$id = $id->getName();
}
$this->tests[$id] = ['size' => $size, 'status' => $status];
foreach ($data as $file => $lines) {
if (!$this->filter->isFile($file)) {
continue;
}
foreach ($lines as $k => $v) {
if ($v === Driver::LINE_EXECUTED) {
if (empty($this->data[$file][$k]) || !\in_array($id, $this->data[$file][$k])) {
$this->data[$file][$k][] = $id;
}
}
}
}
$this->report = null;
}
/**
* Merges the data from another instance.
*
* @param CodeCoverage $that
*/
public function merge(self $that): void
{
$this->filter->setWhitelistedFiles(
\array_merge($this->filter->getWhitelistedFiles(), $that->filter()->getWhitelistedFiles())
);
foreach ($that->data as $file => $lines) {
if (!isset($this->data[$file])) {
if (!$this->filter->isFiltered($file)) {
$this->data[$file] = $lines;
}
continue;
}
// we should compare the lines if any of two contains data
$compareLineNumbers = \array_unique(
\array_merge(
\array_keys($this->data[$file]),
\array_keys($that->data[$file])
)
);
foreach ($compareLineNumbers as $line) {
$thatPriority = $this->getLinePriority($that->data[$file], $line);
$thisPriority = $this->getLinePriority($this->data[$file], $line);
if ($thatPriority > $thisPriority) {
$this->data[$file][$line] = $that->data[$file][$line];
} elseif ($thatPriority === $thisPriority && \is_array($this->data[$file][$line])) {
$this->data[$file][$line] = \array_unique(
\array_merge($this->data[$file][$line], $that->data[$file][$line])
);
}
}
}
$this->tests = \array_merge($this->tests, $that->getTests());
$this->report = null;
}
public function setCacheTokens(bool $flag): void
{
$this->cacheTokens = $flag;
}
public function getCacheTokens(): bool
{
return $this->cacheTokens;
}
public function setCheckForUnintentionallyCoveredCode(bool $flag): void
{
$this->checkForUnintentionallyCoveredCode = $flag;
}
public function setForceCoversAnnotation(bool $flag): void
{
$this->forceCoversAnnotation = $flag;
}
public function setCheckForMissingCoversAnnotation(bool $flag): void
{
$this->checkForMissingCoversAnnotation = $flag;
}
public function setCheckForUnexecutedCoveredCode(bool $flag): void
{
$this->checkForUnexecutedCoveredCode = $flag;
}
public function setAddUncoveredFilesFromWhitelist(bool $flag): void
{
$this->addUncoveredFilesFromWhitelist = $flag;
}
public function setProcessUncoveredFilesFromWhitelist(bool $flag): void
{
$this->processUncoveredFilesFromWhitelist = $flag;
}
public function setDisableIgnoredLines(bool $flag): void
{
$this->disableIgnoredLines = $flag;
}
public function setIgnoreDeprecatedCode(bool $flag): void
{
$this->ignoreDeprecatedCode = $flag;
}
public function setUnintentionallyCoveredSubclassesWhitelist(array $whitelist): void
{
$this->unintentionallyCoveredSubclassesWhitelist = $whitelist;
}
/**
* Determine the priority for a line
*
* 1 = the line is not set
* 2 = the line has not been tested
* 3 = the line is dead code
* 4 = the line has been tested
*
* During a merge, a higher number is better.
*
* @param array $data
* @param int $line
*
* @return int
*/
private function getLinePriority($data, $line)
{
if (!\array_key_exists($line, $data)) {
return 1;
}
if (\is_array($data[$line]) && \count($data[$line]) === 0) {
return 2;
}
if ($data[$line] === null) {
return 3;
}
return 4;
}
/**
* Applies the @covers annotation filtering.
*
* @param array|false $linesToBeCovered
*
* @throws \SebastianBergmann\CodeCoverage\CoveredCodeNotExecutedException
* @throws \ReflectionException
* @throws MissingCoversAnnotationException
* @throws UnintentionallyCoveredCodeException
*/
private function applyCoversAnnotationFilter(array &$data, $linesToBeCovered, array $linesToBeUsed, bool $ignoreForceCoversAnnotation): void
{
if ($linesToBeCovered === false ||
($this->forceCoversAnnotation && empty($linesToBeCovered) && !$ignoreForceCoversAnnotation)) {
if ($this->checkForMissingCoversAnnotation) {
throw new MissingCoversAnnotationException;
}
$data = [];
return;
}
if (empty($linesToBeCovered)) {
return;
}
if ($this->checkForUnintentionallyCoveredCode &&
(!$this->currentId instanceof TestCase ||
(!$this->currentId->isMedium() && !$this->currentId->isLarge()))) {
$this->performUnintentionallyCoveredCodeCheck($data, $linesToBeCovered, $linesToBeUsed);
}
if ($this->checkForUnexecutedCoveredCode) {
$this->performUnexecutedCoveredCodeCheck($data, $linesToBeCovered, $linesToBeUsed);
}
$data = \array_intersect_key($data, $linesToBeCovered);
foreach (\array_keys($data) as $filename) {
$_linesToBeCovered = \array_flip($linesToBeCovered[$filename]);
$data[$filename] = \array_intersect_key($data[$filename], $_linesToBeCovered);
}
}
private function applyWhitelistFilter(array &$data): void
{
foreach (\array_keys($data) as $filename) {
if ($this->filter->isFiltered($filename)) {
unset($data[$filename]);
}
}
}
/**
* @throws \SebastianBergmann\CodeCoverage\InvalidArgumentException
*/
private function applyIgnoredLinesFilter(array &$data): void
{
foreach (\array_keys($data) as $filename) {
if (!$this->filter->isFile($filename)) {
continue;
}
foreach ($this->getLinesToBeIgnored($filename) as $line) {
unset($data[$filename][$line]);
}
}
}
private function initializeFilesThatAreSeenTheFirstTime(array $data): void
{
foreach ($data as $file => $lines) {
if (!isset($this->data[$file]) && $this->filter->isFile($file)) {
$this->data[$file] = [];
foreach ($lines as $k => $v) {
$this->data[$file][$k] = $v === -2 ? null : [];
}
}
}
}
/**
* @throws CoveredCodeNotExecutedException
* @throws InvalidArgumentException
* @throws MissingCoversAnnotationException
* @throws RuntimeException
* @throws UnintentionallyCoveredCodeException
* @throws \ReflectionException
*/
private function addUncoveredFilesFromWhitelist(): void
{
$data = [];
$uncoveredFiles = \array_diff(
$this->filter->getWhitelist(),
\array_keys($this->data)
);
foreach ($uncoveredFiles as $uncoveredFile) {
if (!\file_exists($uncoveredFile)) {
continue;
}
$data[$uncoveredFile] = [];
$lines = \count(\file($uncoveredFile));
for ($i = 1; $i <= $lines; $i++) {
$data[$uncoveredFile][$i] = Driver::LINE_NOT_EXECUTED;
}
}
$this->append($data, 'UNCOVERED_FILES_FROM_WHITELIST');
}
private function getLinesToBeIgnored(string $fileName): array
{
if (isset($this->ignoredLines[$fileName])) {
return $this->ignoredLines[$fileName];
}
try {
return $this->getLinesToBeIgnoredInner($fileName);
} catch (\OutOfBoundsException $e) {
// This can happen with PHP_Token_Stream if the file is syntactically invalid,
// and probably affects a file that wasn't executed.
return [];
}
}
private function getLinesToBeIgnoredInner(string $fileName): array
{
$this->ignoredLines[$fileName] = [];
$lines = \file($fileName);
foreach ($lines as $index => $line) {
if (!\trim($line)) {
$this->ignoredLines[$fileName][] = $index + 1;
}
}
if ($this->cacheTokens) {
$tokens = \PHP_Token_Stream_CachingFactory::get($fileName);
} else {
$tokens = new \PHP_Token_Stream($fileName);
}
foreach ($tokens->getInterfaces() as $interface) {
$interfaceStartLine = $interface['startLine'];
$interfaceEndLine = $interface['endLine'];
foreach (\range($interfaceStartLine, $interfaceEndLine) as $line) {
$this->ignoredLines[$fileName][] = $line;
}
}
foreach (\array_merge($tokens->getClasses(), $tokens->getTraits()) as $classOrTrait) {
$classOrTraitStartLine = $classOrTrait['startLine'];
$classOrTraitEndLine = $classOrTrait['endLine'];
if (empty($classOrTrait['methods'])) {
foreach (\range($classOrTraitStartLine, $classOrTraitEndLine) as $line) {
$this->ignoredLines[$fileName][] = $line;
}
continue;
}
$firstMethod = \array_shift($classOrTrait['methods']);
$firstMethodStartLine = $firstMethod['startLine'];
$firstMethodEndLine = $firstMethod['endLine'];
$lastMethodEndLine = $firstMethodEndLine;
do {
$lastMethod = \array_pop($classOrTrait['methods']);
} while ($lastMethod !== null && 0 === \strpos($lastMethod['signature'], 'anonymousFunction'));
if ($lastMethod !== null) {
$lastMethodEndLine = $lastMethod['endLine'];
}
foreach (\range($classOrTraitStartLine, $firstMethodStartLine) as $line) {
$this->ignoredLines[$fileName][] = $line;
}
foreach (\range($lastMethodEndLine + 1, $classOrTraitEndLine) as $line) {
$this->ignoredLines[$fileName][] = $line;
}
}
if ($this->disableIgnoredLines) {
$this->ignoredLines[$fileName] = \array_unique($this->ignoredLines[$fileName]);
\sort($this->ignoredLines[$fileName]);
return $this->ignoredLines[$fileName];
}
$ignore = false;
$stop = false;
foreach ($tokens->tokens() as $token) {
switch (\get_class($token)) {
case \PHP_Token_COMMENT::class:
case \PHP_Token_DOC_COMMENT::class:
$_token = \trim($token);
$_line = \trim($lines[$token->getLine() - 1]);
if ($_token === '// @codeCoverageIgnore' ||
$_token === '//@codeCoverageIgnore') {
$ignore = true;
$stop = true;
} elseif ($_token === '// @codeCoverageIgnoreStart' ||
$_token === '//@codeCoverageIgnoreStart') {
$ignore = true;
} elseif ($_token === '// @codeCoverageIgnoreEnd' ||
$_token === '//@codeCoverageIgnoreEnd') {
$stop = true;
}
if (!$ignore) {
$start = $token->getLine();
$end = $start + \substr_count($token, "\n");
// Do not ignore the first line when there is a token
// before the comment
if (0 !== \strpos($_token, $_line)) {
$start++;
}
for ($i = $start; $i < $end; $i++) {
$this->ignoredLines[$fileName][] = $i;
}
// A DOC_COMMENT token or a COMMENT token starting with "/*"
// does not contain the final \n character in its text
if (isset($lines[$i - 1]) && 0 === \strpos($_token, '/*') && '*/' === \substr(\trim($lines[$i - 1]), -2)) {
$this->ignoredLines[$fileName][] = $i;
}
}
break;
case \PHP_Token_INTERFACE::class:
case \PHP_Token_TRAIT::class:
case \PHP_Token_CLASS::class:
case \PHP_Token_FUNCTION::class:
/* @var \PHP_Token_Interface $token */
$docblock = $token->getDocblock();
$this->ignoredLines[$fileName][] = $token->getLine();
if (\strpos($docblock, '@codeCoverageIgnore') || ($this->ignoreDeprecatedCode && \strpos($docblock, '@deprecated'))) {
$endLine = $token->getEndLine();
for ($i = $token->getLine(); $i <= $endLine; $i++) {
$this->ignoredLines[$fileName][] = $i;
}
}
break;
/* @noinspection PhpMissingBreakStatementInspection */
case \PHP_Token_NAMESPACE::class:
$this->ignoredLines[$fileName][] = $token->getEndLine();
// Intentional fallthrough
case \PHP_Token_DECLARE::class:
case \PHP_Token_OPEN_TAG::class:
case \PHP_Token_CLOSE_TAG::class:
case \PHP_Token_USE::class:
$this->ignoredLines[$fileName][] = $token->getLine();
break;
}
if ($ignore) {
$this->ignoredLines[$fileName][] = $token->getLine();
if ($stop) {
$ignore = false;
$stop = false;
}
}
}
$this->ignoredLines[$fileName][] = \count($lines) + 1;
$this->ignoredLines[$fileName] = \array_unique(
$this->ignoredLines[$fileName]
);
$this->ignoredLines[$fileName] = \array_unique($this->ignoredLines[$fileName]);
\sort($this->ignoredLines[$fileName]);
return $this->ignoredLines[$fileName];
}
/**
* @throws \ReflectionException
* @throws UnintentionallyCoveredCodeException
*/
private function performUnintentionallyCoveredCodeCheck(array &$data, array $linesToBeCovered, array $linesToBeUsed): void
{
$allowedLines = $this->getAllowedLines(
$linesToBeCovered,
$linesToBeUsed
);
$unintentionallyCoveredUnits = [];
foreach ($data 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(
$unintentionallyCoveredUnits
);
}
}
/**
* @throws CoveredCodeNotExecutedException
*/
private function performUnexecutedCoveredCodeCheck(array &$data, array $linesToBeCovered, array $linesToBeUsed): void
{
$executedCodeUnits = $this->coverageToCodeUnits($data);
$message = '';
foreach ($this->linesToCodeUnits($linesToBeCovered) as $codeUnit) {
if (!\in_array($codeUnit, $executedCodeUnits)) {
$message .= \sprintf(
'- %s is expected to be executed (@covers) but was not executed' . "\n",
$codeUnit
);
}
}
foreach ($this->linesToCodeUnits($linesToBeUsed) as $codeUnit) {
if (!\in_array($codeUnit, $executedCodeUnits)) {
$message .= \sprintf(
'- %s is expected to be executed (@uses) but was not executed' . "\n",
$codeUnit
);
}
}
if (!empty($message)) {
throw new CoveredCodeNotExecutedException($message);
}
}
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 RuntimeException
*/
private function selectDriver(Filter $filter): Driver
{
$runtime = new Runtime;
if (!$runtime->canCollectCodeCoverage()) {
throw new RuntimeException('No code coverage driver available');
}
if ($runtime->isPHPDBG()) {
return new PHPDBG;
}
if ($runtime->hasXdebug()) {
return new Xdebug($filter);
}
throw new RuntimeException('No code coverage driver available');
}
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;
}
$class = new \ReflectionClass($unit[0]);
foreach ($this->unintentionallyCoveredSubclassesWhitelist as $whitelisted) {
if ($class->isSubclassOf($whitelisted)) {
unset($unintentionallyCoveredUnits[$k]);
break;
}
}
}
return \array_values($unintentionallyCoveredUnits);
}
/**
* @throws CoveredCodeNotExecutedException
* @throws InvalidArgumentException
* @throws MissingCoversAnnotationException
* @throws RuntimeException
* @throws UnintentionallyCoveredCodeException
* @throws \ReflectionException
*/
private function initializeData(): void
{
$this->isInitialized = true;
if ($this->processUncoveredFilesFromWhitelist) {
$this->shouldCheckForDeadAndUnused = false;
$this->driver->start();
foreach ($this->filter->getWhitelist() as $file) {
if ($this->filter->isFile($file)) {
include_once $file;
}
}
$data = [];
$coverage = $this->driver->stop();
foreach ($coverage as $file => $fileCoverage) {
if ($this->filter->isFiltered($file)) {
continue;
}
foreach (\array_keys($fileCoverage) as $key) {
if ($fileCoverage[$key] === Driver::LINE_EXECUTED) {
$fileCoverage[$key] = Driver::LINE_NOT_EXECUTED;
}
}
$data[$file] = $fileCoverage;
}
$this->append($data, 'UNCOVERED_FILES_FROM_WHITELIST');
}
}
private function coverageToCodeUnits(array $data): array
{
$codeUnits = [];
foreach ($data as $filename => $lines) {
foreach ($lines as $line => $flag) {
if ($flag === 1) {
$codeUnits[] = $this->wizard->lookup($filename, $line);
}
}
}
return \array_unique($codeUnits);
}
private function linesToCodeUnits(array $data): array
{
$codeUnits = [];
foreach ($data as $filename => $lines) {
foreach ($lines as $line) {
$codeUnits[] = $this->wizard->lookup($filename, $line);
}
}
return \array_unique($codeUnits);
}
}