GetMockRector

Turns getMock*() methods to createMock()

 use PHPUnit\Framework\TestCase;

 final class SomeTest extends TestCase
 {
     public function test()
     {
-        $classMock = $this->getMock("Class");
+        $classMock = $this->createMock("Class");
     }
 }

Configure your rector.php:

<?php

use Rector\Config\RectorConfig;
use Rector\PHPUnit\PHPUnit50\Rector\StaticCall\GetMockRector;

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