Assert the menu bar of the current app offers, or does not offer, a menu. A menu is shown when the user belongs to one of its groups. A path opens the parent menus to look inside.
Examples
Then I should see the "Orders" menu
And I should not see the "Configuration" menu
Then we should see the "Orders > Quotations" menu
And I should not see the "Reporting" menu
Then we should not see the "Configuration > Settings" menu
Pattern
Then(/^(I |we )*should( not)* see the "([^"]*)" menu$/, …)
Part of @webship-js/odoo-steps (github.com/webship/odoo-steps), a step pack for Webship-js 2.0.x.