Turns same bool and null comparisons to their method name alternatives in PHPUnit TestCase
-$this->assertSame(null, $anything);
+$this->assertNull($anything);Configure your rector.php:
<?php
use Rector\Config\RectorConfig;
use Rector\PHPUnit\CodeQuality\Rector\MethodCall\AssertSameBoolNullToSpecificMethodRector;
return RectorConfig::configure()
->withRules([
AssertSameBoolNullToSpecificMethodRector::class,
]);