         message1.identifier = "test-header-1"
         message1.text = "Foobar 1"
 
-        var obj1 = ChatData(type: .message, timestamp: Date())
+        var obj1 = ChatData(type: .message, timestamp: Date().addingTimeInterval(-1))
         obj1.message = message1
 
         let (indexPaths, _) = controller.insert([obj1])

    func testIndexPathOf() {
        let controller = ChatDataController()

        var obj2 = ChatData(type: .message, timestamp: Date())
        obj2.timestamp = Date().addingTimeInterval(1.0)

        var obj1 = ChatData(type: .message, timestamp: Date())
        obj1.timestamp = Date()

        var obj3 = ChatData(type: .message, timestamp: Date())
        obj3.timestamp = Date().addingTimeInterval(2.0)

        controller.insert([obj2, obj1, obj3])


        message1.identifier = "test-loader-1"
        message1.text = "Foobar 1"

        var obj1 = ChatData(type: .message, timestamp: Date().addingTimeInterval(-1))
        obj1.message = message1

        let (indexPaths, _) = controller.insert([obj1])
