protected function renderForm($formContent)
    {
        $formContentWithAdditionalElements = $formContent .
            $this->renderHiddenFields() . $this->renderSubmitButton($this->translate('run_all_tests'));

        $formContentWithinParagraph = $this->renderTag('p', [], $formContentWithAdditionalElements);

        return $this->renderTag(
            'form',
            [
                'action' => $this->action,
                'method' => 'post',
            ],
            $formContentWithinParagraph
        );
    }