Send the form of the page in the shop with its own button ("Save" of an address, "Create account" of the registration, "Send your message" of the contact page) and wait for the answer.
Examples
When I send the shop form
When we send the shop form
And I send the shop form
Then I send the shop form
When send the shop form
Pattern
When(/^(I |we )*send the shop form$/, …)
Part of @webship-js/prestashop-steps (github.com/webship/prestashop-steps), a step pack for Webship-js 2.0.x.