Check if selector exist Dusk Testing

assertFind.php

<?php
  use Laravel\Dusk\Browser;
  use PHPUnit\Framework\Assert as PHPUnit;
  
  
  Browser::macro('assertFind', function ($dom) {
      $message = "Did not see expected element [{$dom}].";
      if ($this->resolver->prefix) {
          $message .= " within [{$this->resolver->prefix}].";
      }
      $element = $this->resolver->find($dom);

      PHPUnit::assertNotNull($element, $message);
      return $this;
  });