Assert the post on screen lists a comment, by its text. A comment held for moderation is listed only to the visitor who sent it, with a note, on the address WordPress returns after sending.
Examples
Then I should see the comment "Thank you for the article."
And we should see the comment "A question about the page."
Then I should not see the comment "Held back."
And I should not see the comment "Spam text."
Then we should see the comment "Good point."
Pattern
Then(/^(I |we )*should( not)* see the comment "([^"]*)"$/, …)
Part of @webship-js/wordpress-steps (github.com/webship/wordpress-steps), a step pack for Webship-js 2.0.x.