Running rector on a class that extends PHPUnit's TestCase class that exists in the root namespace causes a strange error.
<?php
declare(strict_types=1);
use PHPUnit\Framework\TestCase;
/**
* Example class.
*/
abstract class Example extends TestCase
{
}[info] Sets loaded based on installed packages:
* /Users/cday/Projects/php/example/vendor/rector/rector/vendor/rector/rector-phpunit/config/sets/phpunit120.php
[file] /Users/cday/Projects/php/example/src/Example.php
[ERROR] Could not process "/Users/cday/Projects/php/example/src/Example.php"
file, due to:
"System error: "assert($startPos >= 0 && $endPos >= 0)"
Stack trace:
#0
vendor/rector/rector/vendor/nikic/php-parser/lib/PhpParser/PrettyPrinte
rAbstract.php(589): assert(false, 'assert($startPo...')
#1
vendor/rector/rector/src/PhpParser/Printer/BetterStandardPrinter.php(14
4):
PhpParser\PrettyPrinterAbstract->p(Object(Rector\PhpParser\Node\Custom
Node\FileWithoutNamespace), 1000, 1000, true)
#2
vendor/rector/rector/vendor/nikic/php-parser/lib/PhpParser/PrettyPrinte
rAbstract.php(881):
Rector\PhpParser\Printer\BetterStandardPrinter->p(Object(Rector\PhpPar
ser\Node\CustomNode\FileWithoutNamespace), 1000, 1000, true)
#3
vendor/rector/rector/src/PhpParser/Printer/BetterStandardPrinter.php(21
5): PhpParser\PrettyPrinterAbstract->pArray(Array, Array, 14, 0,
'File', 'stmts', NULL)
#4
vendor/rector/rector/vendor/nikic/php-parser/lib/PhpParser/PrettyPrinte
rAbstract.php(548):
Rector\PhpParser\Printer\BetterStandardPrinter->pArray(Array, Array,
14, 0, 'File', 'stmts', NULL)
#5
vendor/rector/rector/src/PhpParser/Printer/BetterStandardPrinter.php(82
): PhpParser\PrettyPrinterAbstract->printFormatPreserving(Array,
Array, Array)
#6 vendor/rector/rector/src/Application/FileProcessor.php(155):
Rector\PhpParser\Printer\BetterStandardPrinter->printFormatPreserving(
Array, Array, Array)
#7 vendor/rector/rector/src/Application/FileProcessor.php(102):
Rector\Application\FileProcessor->printFile(Object(Rector\ValueObject\
Application\File), Object(Rector\ValueObject\Configuration),
'/Users/cday/Pro...')
#8
vendor/rector/rector/src/Application/ApplicationFileProcessor.php(178):
Rector\Application\FileProcessor->processFile(Object(Rector\ValueObjec
t\Application\File), Object(Rector\ValueObject\Configuration))
#9
vendor/rector/rector/src/Application/ApplicationFileProcessor.php(152):
Rector\Application\ApplicationFileProcessor->processFile(Object(Rector
\ValueObject\Application\File),
Object(Rector\ValueObject\Configuration))
#10
vendor/rector/rector/src/Application/ApplicationFileProcessor.php(128):
Rector\Application\ApplicationFileProcessor->processFiles(Array,
Object(Rector\ValueObject\Configuration), Object(Closure),
Object(Closure))
#11 vendor/rector/rector/src/Console/Command/ProcessCommand.php(172):
Rector\Application\ApplicationFileProcessor->run(Object(Rector\ValueOb
ject\Configuration),
Object(RectorPrefix202511\Symfony\Component\Console\Input\ArgvInput))
#12
vendor/rector/rector/vendor/symfony/console/Command/Command.php(289):
Rector\Console\Command\ProcessCommand->execute(Object(RectorPrefix2025
11\Symfony\Component\Console\Input\ArgvInput),
Object(RectorPrefix202511\Symfony\Component\Console\Output\ConsoleOutpu
t))
#13 vendor/rector/rector/vendor/symfony/console/Application.php(892):
RectorPrefix202511\Symfony\Component\Console\Command\Command->run(Obje
ct(RectorPrefix202511\Symfony\Component\Console\Input\ArgvInput),
Object(RectorPrefix202511\Symfony\Component\Console\Output\ConsoleOutpu
t))
#14 vendor/rector/rector/vendor/symfony/console/Application.php(279):
RectorPrefix202511\Symfony\Component\Console\Application->doRunCommand
(Object(Rector\Console\Command\ProcessCommand),
Object(RectorPrefix202511\Symfony\Component\Console\Input\ArgvInput),
Object(RectorPrefix202511\Symfony\Component\Console\Output\ConsoleOutpu
t))
#15 vendor/rector/rector/src/Console/ConsoleApplication.php(60):
RectorPrefix202511\Symfony\Component\Console\Application->doRun(Object
(RectorPrefix202511\Symfony\Component\Console\Input\ArgvInput),
Object(RectorPrefix202511\Symfony\Component\Console\Output\ConsoleOutpu
t))
#16 vendor/rector/rector/vendor/symfony/console/Application.php(162):
Rector\Console\ConsoleApplication->doRun(Object(RectorPrefix202511\Sym
fony\Component\Console\Input\ArgvInput),
Object(RectorPrefix202511\Symfony\Component\Console\Output\ConsoleOutpu
t))
#17 vendor/rector/rector/bin/rector.php(130):
RectorPrefix202511\Symfony\Component\Console\Application->run()
#18 vendor/rector/rector/bin/rector(5):
require_once('/Users/cday/Pro...')
#19 vendor/bin/rector(119): include('/Users/cday/Pro...')
#20 {main}". On line: 589
I've been playing around with this and I don't get the error if the class is in a namespace, so it has something to do with being in a root namespace?
Ideally everything would be in a namespace but I'm working on an older repository that would make that a bit of a lift.
Running rector on a class that extends PHPUnit's TestCase class that exists in the root namespace causes a strange error.
With this file:
I'm running this:
composer exec rector -- src/Example.php --debugand getting this error:
I put up an example repository here, just in case this doesn't trigger with default configuration: https://github.com/cdayjr/rector-system-error
I've been playing around with this and I don't get the error if the class is in a namespace, so it has something to do with being in a root namespace?
Ideally everything would be in a namespace but I'm working on an older repository that would make that a bit of a lift.