Go on from the cart page to the checkout ("Proceed to checkout").
Examples
When I proceed to checkout
When we proceed to checkout
And I proceed to checkout
Then I proceed to checkout
When proceed to checkout
Pattern
When(/^(I |we )*proceed to checkout$/, …)
Part of @webship-js/prestashop-steps (github.com/webship/prestashop-steps), a step pack for Webship-js 2.0.x.