public function testGeneral()
{
$description = new Description();
$this->assertNotEmpty($description->getGlue());
$description->clear();
$this->assertEmpty($description->getVars());
$description->add('test');
$this->assertNotEmpty($description->getVars());
$description->render();
$description->setVars(['abc', 'zyz']);
$this->assertNotEmpty($description->getVars());
$this->assertNotEmpty($description->render());
}