Closed
Description
Symfony version(s) affected
6.3.x
Description
After upgrading my application to version 6.3.0-RC1 I started getting the following error on my CI pipeline:
Error: Attempt to modify property "privates" on null
After some research I found out the problem was introduced in #48469 .
How to reproduce
Here's an example test:
use App\Factory\PostFactory;
use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
use Zenstruck\Foundry\Test\Factories;
use Zenstruck\Foundry\Test\ResetDatabase;
class ExampleTest extends KernelTestCase
{
use Factories;
use ResetDatabase;
public function testSomething(): void
{
gc_collect_cycles();
$posts = PostFactory::createMany(5);
self::assertCount(5, $posts);
}
}It would fail on the CI pipeline, but would pass locally. After a while I've realized I was able to reproduce the problem locally by adding gc_collect_cycles(); (this was not required for the test to fail on the CI).
I was also able to reproduce the problem with the following test:
use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
use Symfony\Component\DependencyInjection\Argument\IteratorArgument;
use Symfony\Component\DependencyInjection\Argument\RewindableGenerator;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\DependencyInjection\Dumper\PhpDumper;
use Symfony\Component\DependencyInjection\Reference;
class ContainerTest extends KernelTestCase
{
public function testWeakReferenceWithRewindableGenerator()
{
$container = new ContainerBuilder();
$container->register('bar', \stdClass::class);
$container->register('baz', \stdClass::class);
$container->register('foo', \stdClass::class)
->setPublic(true)
->setProperty('iterator', new IteratorArgument([
'bar' => new Reference('bar'),
'baz' => new Reference('baz'),
]))
;
$container->compile();
$dumper = new PhpDumper($container);
eval('?>'.$dumper->dump(['class' => 'Symfony_DI_PhpDumper_Test_WeakReferenceWithRewindableGenerator']));
$container = new \Symfony_DI_PhpDumper_Test_WeakReferenceWithRewindableGenerator();
$foo = $container->get('foo');
self::assertInstanceOf(RewindableGenerator::class, $foo->iterator);
unset($container);
$array = iterator_to_array($foo->iterator); // Error: Attempt to modify property "privates" on null
self::assertCount(2, $array);
self::assertArrayHasKey('bar', $array);
self::assertInstanceOf(\stdClass::class, $array['bar']);
self::assertArrayHasKey('baz', $array);
self::assertInstanceOf(\stdClass::class, $array['baz']);
}
}Possible Solution
No response
Additional Context
No response