Try Rector Online | Rector - Automated Way to Instantly Upgrade and Refactor any PHP code

Run Rector on your code to see what it can do for you:

         self::assertSame(1, 1);
 
         $test = [
-            'unlink' => static fn ($path) => self::assertSame('/tmp/path/to/file.zip', $path),
+            'unlink' => static fn ($path) => $this->assertSame('/tmp/path/to/file.zip', $path),
         ];
     }
 }

PHP snippet to change

<?php

use PHPUnit\Framework\TestCase;

final class SomeTest extends TestCase
{
    public function test()
    {
        self::assertSame(1, 1);

        $test = [
            'unlink' => static fn ($path) => self::assertSame('/tmp/path/to/file.zip', $path),
        ];
    }
}

Applied Rules:

Not a change you expect?

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Config rector.php

<?php

use Rector\Config\RectorConfig;
use Rector\PHPUnit\CodeQuality\Rector\Class_\PreferPHPUnitSelfCallRector;
use Rector\PHPUnit\CodeQuality\Rector\Class_\PreferPHPUnitThisCallRector;

return RectorConfig::configure()
    ->withRules([
        PreferPHPUnitThisCallRector::class,
        PreferPHPUnitSelfCallRector::class,
    ]);

Rector version: b09565 - released at 2026-05-25 06:37