/**
* @Then /^I should be notified that variant code must be unique within this product for the (\d)(?:st|nd|rd|th) variant$/
*/
public function iShouldBeNotifiedThatVariantCodeMustBeUniqueWithinThisProductForYheVariant($position)
{
Assert::same($this->generatePage->getValidationMessage('code', $position - 1), 'This code must be unique within this product.');
}