Rector\PHPUnit\CodeQuality\Rector\ClassMethod\AddInstanceofAssertForNullableInstanceRector

AddInstanceofAssertForNullableInstanceRector

Add explicit instance assert between nullable object assign and method call on nullable object (spotted by PHPStan)

 use PHPUnit\Framework\TestCase;

 final class SomeTest extends TestCase
 {
     public function test()
     {
         $someObject = $this->getSomeObject();
+        $this->assertInstanceOf(SomeClass::class, $someObject);

         $value = $someObject->getSomeMethod();
     }

     private function getSomeObject(): ?SomeClass
     {
         if (mt_rand(0, 1)) {
             return new SomeClass();
         }

         return null;
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\PHPUnit\CodeQuality\Rector\ClassMethod\AddInstanceofAssertForNullableInstanceRector;

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

SETS: Code Quality