Assert the page shows (or does not show) a content element of a type. The type is the CType of the element, which the theme prints as frame-type-<CType>: text, textpic, textmedia, image, bullets, table, uploads, accordion, carousel, tab, form_formframework, felogin_login, indexedsearch_pi2, ...
Examples
Then I should see a "text" content element
And I should see a "form_formframework" content element
Then we should see an "accordion" content element
And I should not see a "felogin_login" content element
Then should see a "textpic" content element
Pattern
Then(/^(I |we )*should( not)* see an? "([^"]*)?" content element$/, …)
Part of @webship-js/typo3-steps (github.com/webship/typo3-steps), a step pack for Webship-js 2.0.x.