/** * @covers \Magento\Framework\Data\Form\Element\Textarea::getHtmlAttributes */ public function testGetHtmlAttributes() { $this->assertEmpty(array_diff(['title', 'class', 'style', 'onclick', 'onchange', 'rows', 'cols', 'readonly', 'disabled', 'onkeyup', 'tabindex'], $this->_model->getHtmlAttributes())); }