Assert the Webflow form's error message (.w-form-fail) is, or is not, visible: the state the runtime shows when the form endpoint refuses a submission or cannot be reached.
Examples
Then I should see the form error message
Then I should see the form error state
And we should see the form error message
Then I should not see the form error message
And I should see the form error state
Pattern
Then(/^(I |we )*should( not)* see the form error (?:message|state)$/, …)
Part of @webship-js/webflow-steps (github.com/webship/webflow-steps), a step pack for Webship-js 2.0.x.