Neos\Eel\Tests\Unit\ArrayHelperTest::joinWorks PHP Method

    public function joinWorks($array, $separator, $expected)
    {
        $helper = new ArrayHelper();
        if ($separator !== null) {
            $result = $helper->join($array, $separator);
        } else {
            $result = $helper->join($array);
        }
        $this->assertEquals($expected, $result);
    }