Submit a form of the form framework by its identifier: the form is form[id^="<identifier>"] and its submit button sits in the form navigation (.form-navigation). On a multi-step form this is the "next step" button until the last step.
Examples
When I submit the "introductionContactForm" form
When we submit the "introductionContactForm" form
And I submit the "contact" form
When I submit the "newsletter" form
When submit the "introductionContactForm" form
Pattern
When(/^(I |we )*submit the "([^"]*)?" form$/, …)
Part of @webship-js/typo3-steps (github.com/webship/typo3-steps), a step pack for Webship-js 2.0.x.