HappyHappy Bender

Happy.php

   <?php
    /**
     * @param string $happyWords Happy Words!!!
     * @return string Unhappy Words 😢😢😢
     */
    function stealingSmiles(string $happyWords): string
    {
        return preg_replace('/(\){2,})/', ')', $happyWords);
    }

HappyTest.php

<?php namespace Tests\Unit;

use Tests\TestCase;

class HappyWordsTest extends TestCase
{
    public function testHappyWords()
    {
        $helloBender = <<<EOT
Bender Bending Rodríguez (designated ))in-universe as Bending Unit 22, unit number 1,729, serial number 2716057) 
is a fictional character who is one of the main characters in the animated television series Futurama. He was created by 
series creators Matt Groening and David)) X. Cohen and is voiced by John DiMaggio. He fulfills a comic, antihero-type 
role in Futurama and is descr))))ibed by fellow character Leela as an "alcoholic, whore-mongering, chain-smoking gambler".
According to the character's backstory, Bender was built in Tijuana, Mexico (the other characters refer to his "swarthy 
Latin charm"). Viewers are informed, through his own testimony, of Bender's prejudice against non-robots. 
For example, one of his signature)) expressions is "kill all humans". Exceptions who are not subject to 
Bender's prejudicial attitude are t))hose individuals on his "Do Not Kill" list, which seems to comprise only his best 
friend Philip J. Fry and his colleague Hermes Conrad (Hermes is added after the episode "Lethal Inspection").
However, Bender is also occasionally portrayed as possessing a sympathetic side, suggesting that he is not as 
belligerent as he claims, a view often echoed by his friends
EOT;

        $unhappy = stealingSmiles($helloBender);
        $this->assertEquals(-1, strpos($unhappy, '))'));
    }
}