/**
  * @Then /^(this customer) should have "([^"]+)" as their group$/
  */
 public function thisCustomerShouldHaveAsTheirGroup(CustomerInterface $customer, $groupName)
 {
     $this->updatePage->open(['id' => $customer->getId()]);
     Assert::same($groupName, $this->updatePage->getGroupName(), sprintf('Customer should have %s as group, but it does not', $groupName));
 }