public void CanPushComment()
{
// Arrange.
BlogPost post = CreateBlogPost();
post.Save();
// Act.
var comment = new Comment
{
Date = DateTime.Now,
Name = "Tim Jones"
};
BlogPost.Push(post.ID, p => p.Comments, comment);
// Assert.
BlogPost myPost = BlogPost.Find(post.ID);
Assert.That(myPost.Comments.Count, Is.EqualTo(1));
Assert.That(myPost.Comments[0].Name, Is.EqualTo("Tim Jones"));
}