The roles the staff invitation offers to the signed-in user. The step opens the invitation dialog and reads it; it sends nothing. Close the dialog with "I answer the dialog with "Close"".
Examples
Then the staff invitation should offer the role "Contributor"
Then the staff invitation should offer the role "Author"
Then the staff invitation should offer the role "Editor"
Then the staff invitation should offer the role "Administrator"
And the staff invitation should not offer the role "Administrator"
Pattern
Then(/^the staff invitation should( not)? offer the role "([^"]*)"$/, …)
Part of @webship-js/ghost-steps (github.com/webship/ghost-steps), a step pack for Webship-js 2.0.x.