 
         describe("PostbarController") {
             describe("replyToAllButtonTapped(_:)") {
+                let cell = UICollectionViewCell()
 
                 beforeEach {
                     let post: Post = stub([

                    var postCellItems = parser.parse([post], streamKind: streamKind)
                    let newComment = ElloComment.newCommentForPost(post, currentUser: currentUser)
                    postCellItems += [StreamCellItem(jsonable: newComment, type: .createComment)]
                    controller.dataSource.appendUnsizedCellItems(postCellItems, withWidth: 320.0) { cellCount in
                        controller.collectionView.reloadData()
                    }
                }
                context("tapping replyToAll") {
                    it("opens an OmnibarViewController with usernames set") {
                        subject.replyToAllButtonTapped(UICollectionViewCell())
                        expect(responder.text) == "@user1 @user2 "
                    }
                }
            }

            describe("watchPostTapped(_:cell:)") {
                var cell: StreamCreateCommentCell!

                beforeEach {
                    let post: Post = stub([

            }

            context("responder chain") {
                it("returns the next responder assigned via responderChainable.next()") {
                    expect(subject.next) == responder
                }
            }
        }
