Assert the CMS sideframe overlay is (or is not) open with its iframe showing a URL containing the given substring.
Examples
Then the CMS sideframe should be showing "/admin/cms/pagecontent/"
Then the CMS sideframe should be showing "/admin/auth/user/"
And the django CMS sideframe should be showing "/admin/"
Then the sideframe should not be showing "/admin/auth/user/"
And the CMS sideframe should not be showing "/admin/cms/pagecontent/"
Pattern
Then(/^the (?:(?:django )?CMS )?sideframe should( not)* be showing "([^"]*)"$/, …)
Part of @webship-js/django-cms-steps (github.com/webship/django-cms-steps), a step pack for Webship-js 2.0.x.