PhpUnitTestListProcessor.php

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<?php
 
declare( strict_types = 1 );
 
namespace MediaWiki\Composer\PhpUnitSplitter;
 
use SimpleXMLElement;
 
class PhpUnitTestListProcessor {
 
    private SimpleXMLElement $xml;
    private array $resultsCache;
 
    public function __construct(
        string $testListFile,
        ?string $resultsCacheFile = null,
        ?string $testGroup = null
    ) {
        $this->xml = new SimpleXMLElement( file_get_contents( $testListFile ) );
        // Load phpunit result cache information if available to create more balanced split groups
        if ( $resultsCacheFile && $testGroup ) {
            if ( !file_exists( $resultsCacheFile ) ) {
                throw new PhpUnitResultsCachingException(
                    'Results cache file "' . $resultsCacheFile . '" specified but not found on filesystem'
                );
            }
            $loadedResults = json_decode( file_get_contents( $resultsCacheFile ), true );
            if ( array_key_exists( $testGroup, $loadedResults ) ) {
                $this->resultsCache = $loadedResults[$testGroup];
            } else {
                $this->resultsCache = [];
            }
        } else {
            $this->resultsCache = [];
        }
    }
 
    public function getTestClasses(): array {
        if ( !property_exists( $this->xml, "testCaseClass" ) ) {
            return [];
        }
        return array_map(
            fn ( $element ) => self::createTestDescriptor(
                (string)$element->attributes()["name"],
                $this->resultsCache
            ),
            iterator_to_array( $this->xml->testCaseClass, false )
        );
    }
 
    private static function createTestDescriptor(
        string $qualifiedClassName,
        array $resultsCache
    ): TestDescriptor {
        $duration = 0;
        if ( array_key_exists( $qualifiedClassName, $resultsCache ) ) {
            $duration = $resultsCache[$qualifiedClassName];
        }
        $parts = explode( '\\', $qualifiedClassName );
        $className = array_pop( $parts );
        return new TestDescriptor( $className, $parts, null, $duration );
    }
}