public async Task Delete()
{
var siteId = await MakeSite().ConfigureAwait(false);
MyPage page = await MakePage(siteId).ConfigureAwait(false);
var pageId = page.Id;
await PageRepository.Delete(pageId).ConfigureAwait(false);
var pageIds = await PageRepository.GetAll(siteId).ConfigureAwait(false);
Assert.AreEqual(0, pageIds.Count());
// TODO: assert that no orphan comments, blocks, fields, etc. are left.
}