# Filter out .txt files
$files = ParserTestRunner::getParserTestFiles();
foreach ( $files as $extName => $parserTestFile ) {
- $isCore = ( 0 === strpos( $parserTestFile, $mwTestDir ) );
+ $isCore = ( strpos( $parserTestFile, $mwTestDir ) === 0 );
if ( $isCore && $wantsCore ) {
self::debug( "included core parser tests: $parserTestFile" );