Rector\TypeDeclaration\Rector\Property\TypedPropertyFromStrictSetUpRector

TypedPropertyFromStrictSetUpRector

Add strict typed property based on setUp() strict typed assigns in TestCase

 use PHPUnit\Framework\TestCase;

 final class SomeClass extends TestCase
 {
-    private $value;
+    private int $value;

     public function setUp()
     {
         $this->value = 1000;
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\TypeDeclaration\Rector\Property\TypedPropertyFromStrictSetUpRector;

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

SETS: Type Declarations