public void InsertPageAfter_PageWasMarkedExtra_NewPageIsNotMarkedExtra()
{
//enhance: move to book starter tests, since that's what implements the actual behavior
var book = CreateBook();
var existingPage = book.GetPages().First();
Mock<IPage> templatePage = CreateTemplatePage("<div class='bloom-page' data-page='extra' >hello</div>");
book.InsertPageAfter(existingPage, templatePage.Object);
Assert.AreEqual("bloom-page A5Portrait", GetPageFromBookDom(book, 1).GetStringAttribute("class"));
}