Add declare(strict_types=1) to PHPUnit test class file
+declare(strict_types=1);
+
use PHPUnit\Framework\TestCase;
final class SomeTestWithoutStrict extends TestCase
{
public function test()
{
}
}Configure your rector.php:
<?php
use Rector\Config\RectorConfig;
use Rector\PHPUnit\CodeQuality\Rector\StmtsAwareInterface\DeclareStrictTypesTestsRector;
return RectorConfig::configure()
->withRules([
DeclareStrictTypesTestsRector::class,
]);
