How many posts the list of tags reports for a tag.
Examples
Then the tag "Guides" should have 2 posts
Then the tag "Travel" should have 10 posts
Then the tag "News" should have 5 posts
And the tag "A tag from the suite" should have 0 posts
Then the tag "Guides" should have 1 post
Pattern
Then(/^the tag "([^"]*)" should have (\d+) posts?$/, …)
Part of @webship-js/ghost-steps (github.com/webship/ghost-steps), a step pack for Webship-js 2.0.x.