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<?php declare(strict_types=1);
/*
* This file is part of PHPUnit.
*
* (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 PHPUnit\Metadata\Api;
use function array_unique;
use function array_values;
use function assert;
use function count;
use function interface_exists;
use function sprintf;
use function str_starts_with;
use PHPUnit\Framework\CodeCoverageException;
use PHPUnit\Framework\InvalidCoversTargetException;
use PHPUnit\Framework\TestSuite;
use PHPUnit\Metadata\Covers;
use PHPUnit\Metadata\CoversClass;
use PHPUnit\Metadata\CoversDefaultClass;
use PHPUnit\Metadata\CoversFunction;
use PHPUnit\Metadata\IgnoreClassForCodeCoverage;
use PHPUnit\Metadata\IgnoreFunctionForCodeCoverage;
use PHPUnit\Metadata\IgnoreMethodForCodeCoverage;
use PHPUnit\Metadata\Parser\Registry;
use PHPUnit\Metadata\Uses;
use PHPUnit\Metadata\UsesClass;
use PHPUnit\Metadata\UsesDefaultClass;
use PHPUnit\Metadata\UsesFunction;
use RecursiveIteratorIterator;
use SebastianBergmann\CodeUnit\CodeUnitCollection;
use SebastianBergmann\CodeUnit\InvalidCodeUnitException;
use SebastianBergmann\CodeUnit\Mapper;
/**
* @internal This class is not covered by the backward compatibility promise for PHPUnit
*/
final class CodeCoverage
{
/**
* @psalm-param class-string $className
* @psalm-param non-empty-string $methodName
*
* @psalm-return array<string,list<int>>|false
*
* @throws CodeCoverageException
*/
public function linesToBeCovered(string $className, string $methodName): array|false
{
if (!$this->shouldCodeCoverageBeCollectedFor($className, $methodName)) {
return false;
}
$metadataForClass = Registry::parser()->forClass($className);
$classShortcut = null;
if ($metadataForClass->isCoversDefaultClass()->isNotEmpty()) {
if (count($metadataForClass->isCoversDefaultClass()) > 1) {
throw new CodeCoverageException(
sprintf(
'More than one @coversDefaultClass annotation for class or interface "%s"',
$className,
),
);
}
$metadata = $metadataForClass->isCoversDefaultClass()->asArray()[0];
assert($metadata instanceof CoversDefaultClass);
$classShortcut = $metadata->className();
}
$codeUnits = CodeUnitCollection::fromList();
$mapper = new Mapper;
foreach (Registry::parser()->forClassAndMethod($className, $methodName) as $metadata) {
if ($metadata->isCoversClass() || $metadata->isCoversFunction()) {
assert($metadata instanceof CoversClass || $metadata instanceof CoversFunction);
try {
$codeUnits = $codeUnits->mergeWith(
$mapper->stringToCodeUnits($metadata->asStringForCodeUnitMapper()),
);
} catch (InvalidCodeUnitException $e) {
if ($metadata->isCoversClass()) {
$type = 'Class';
} else {
$type = 'Function';
}
throw new InvalidCoversTargetException(
sprintf(
'%s "%s" is not a valid target for code coverage',
$type,
$metadata->asStringForCodeUnitMapper(),
),
$e->getCode(),
$e,
);
}
} elseif ($metadata->isCovers()) {
assert($metadata instanceof Covers);
$target = $metadata->target();
if (interface_exists($target)) {
throw new InvalidCoversTargetException(
sprintf(
'Trying to @cover interface "%s".',
$target,
),
);
}
if ($classShortcut !== null && str_starts_with($target, '::')) {
$target = $classShortcut . $target;
}
try {
$codeUnits = $codeUnits->mergeWith($mapper->stringToCodeUnits($target));
} catch (InvalidCodeUnitException $e) {
throw new InvalidCoversTargetException(
sprintf(
'"@covers %s" is invalid',
$target,
),
$e->getCode(),
$e,
);
}
}
}
return $mapper->codeUnitsToSourceLines($codeUnits);
}
/**
* @psalm-param class-string $className
* @psalm-param non-empty-string $methodName
*
* @psalm-return array<string,list<int>>
*
* @throws CodeCoverageException
*/
public function linesToBeUsed(string $className, string $methodName): array
{
$metadataForClass = Registry::parser()->forClass($className);
$classShortcut = null;
if ($metadataForClass->isUsesDefaultClass()->isNotEmpty()) {
if (count($metadataForClass->isUsesDefaultClass()) > 1) {
throw new CodeCoverageException(
sprintf(
'More than one @usesDefaultClass annotation for class or interface "%s"',
$className,
),
);
}
$metadata = $metadataForClass->isUsesDefaultClass()->asArray()[0];
assert($metadata instanceof UsesDefaultClass);
$classShortcut = $metadata->className();
}
$codeUnits = CodeUnitCollection::fromList();
$mapper = new Mapper;
foreach (Registry::parser()->forClassAndMethod($className, $methodName) as $metadata) {
if ($metadata->isUsesClass() || $metadata->isUsesFunction()) {
assert($metadata instanceof UsesClass || $metadata instanceof UsesFunction);
try {
$codeUnits = $codeUnits->mergeWith(
$mapper->stringToCodeUnits($metadata->asStringForCodeUnitMapper()),
);
} catch (InvalidCodeUnitException $e) {
if ($metadata->isUsesClass()) {
$type = 'Class';
} else {
$type = 'Function';
}
throw new InvalidCoversTargetException(
sprintf(
'%s "%s" is not a valid target for code coverage',
$type,
$metadata->asStringForCodeUnitMapper(),
),
$e->getCode(),
$e,
);
}
} elseif ($metadata->isUses()) {
assert($metadata instanceof Uses);
$target = $metadata->target();
if ($classShortcut !== null && str_starts_with($target, '::')) {
$target = $classShortcut . $target;
}
try {
$codeUnits = $codeUnits->mergeWith($mapper->stringToCodeUnits($target));
} catch (InvalidCodeUnitException $e) {
throw new InvalidCoversTargetException(
sprintf(
'"@uses %s" is invalid',
$target,
),
$e->getCode(),
$e,
);
}
}
}
return $mapper->codeUnitsToSourceLines($codeUnits);
}
/**
* @psalm-return array<string,list<int>>
*/
public function linesToBeIgnored(TestSuite $testSuite): array
{
$codeUnits = CodeUnitCollection::fromList();
$mapper = new Mapper;
foreach ($this->testCaseClassesIn($testSuite) as $testCaseClassName) {
$codeUnits = $codeUnits->mergeWith(
$this->codeUnitsIgnoredBy($testCaseClassName),
);
}
return $mapper->codeUnitsToSourceLines($codeUnits);
}
/**
* @psalm-param class-string $className
* @psalm-param non-empty-string $methodName
*/
public function shouldCodeCoverageBeCollectedFor(string $className, string $methodName): bool
{
$metadataForClass = Registry::parser()->forClass($className);
$metadataForMethod = Registry::parser()->forMethod($className, $methodName);
if ($metadataForMethod->isCoversNothing()->isNotEmpty()) {
return false;
}
if ($metadataForMethod->isCovers()->isNotEmpty() ||
$metadataForMethod->isCoversClass()->isNotEmpty() ||
$metadataForMethod->isCoversFunction()->isNotEmpty()) {
return true;
}
if ($metadataForClass->isCoversNothing()->isNotEmpty()) {
return false;
}
return true;
}
/**
* @psalm-return list<class-string>
*/
private function testCaseClassesIn(TestSuite $testSuite): array
{
$classNames = [];
foreach (new RecursiveIteratorIterator($testSuite) as $test) {
$classNames[] = $test::class;
}
return array_values(array_unique($classNames));
}
/**
* @psalm-param class-string $className
*/
private function codeUnitsIgnoredBy(string $className): CodeUnitCollection
{
$codeUnits = CodeUnitCollection::fromList();
$mapper = new Mapper;
foreach (Registry::parser()->forClass($className) as $metadata) {
if ($metadata instanceof IgnoreClassForCodeCoverage) {
$codeUnits = $codeUnits->mergeWith(
$mapper->stringToCodeUnits($metadata->className()),
);
}
if ($metadata instanceof IgnoreMethodForCodeCoverage) {
$codeUnits = $codeUnits->mergeWith(
$mapper->stringToCodeUnits($metadata->className() . '::' . $metadata->methodName()),
);
}
if ($metadata instanceof IgnoreFunctionForCodeCoverage) {
$codeUnits = $codeUnits->mergeWith(
$mapper->stringToCodeUnits('::' . $metadata->functionName()),
);
}
}
return $codeUnits;
}
}
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