/**
  * Verify displayed product description on product page(front-end) equals passed from fixture
  *
  * @return string|null
  */
 protected function verifyDescription()
 {
     $fixtureProductDescription = $this->product->getDescription();
     $formProductDescription = $this->productView->getProductDescription();
     if ($fixtureProductDescription == $formProductDescription) {
         return null;
     }
     return "Displayed product description on product page(front-end) not equals passed from fixture. " . "Actual: {$formProductDescription}, expected: {$fixtureProductDescription}.";
 }