Then the page should be the tag archive of "guides"

The archive the front end rendered: the tag archive or the author archive of a slug.

Examples

Then the page should be the tag archive of "guides"
Then the page should be the author archive of "arthur"
Then the page should be the tag archive of "news"
And the page should be the author archive of "edith"
And the page should be the tag archive of "travel"

Pattern

Then(/^the page should be the (tag|author) archive of "([^"]*)"$/, …)

Part of @webship-js/ghost-steps (github.com/webship/ghost-steps), a step pack for Webship-js 2.0.x.