Assert the status report lists, or does not list, an entry among its errors or its warnings, by the entry's title ("Configuration files", "Trusted Host Settings", "Cron maintenance tasks").
Examples
Then the status report should list the warning "Configuration files"
And the status report should not list the error "Trusted Host Settings"
Then the status report should list the error "Database updates"
And the status report should not list the warning "Cron maintenance tasks"
Then the status report should not list the error "Configuration files"
Pattern
Then(/^the status report should( not)* list the (error|warning) "([^"]*)"$/, …)
Part of @webship-js/drupal-core-steps (github.com/webship/drupal-core-steps), a step pack for Webship-js 2.0.x.