Assert the list view shows, or does not show, a group with the given name: a group header row (tr.o_group_header) after a "Group By".
Examples
Then I should see the "Mitchell Admin" group
And I should see the "Sales Order" group
Then we should see the "Quotation" group
And I should not see the "Cancelled" group
Then we should not see the "Marc Demo" group
Pattern
Then(/^(I |we )*should( not)* see the "([^"]*)" group$/, …)
Part of @webship-js/odoo-steps (github.com/webship/odoo-steps), a step pack for Webship-js 2.0.x.