public void TreeWithBookPreorder(Book[] array, Book[] result, IComparer<Book> comparer)
{
var tree = new BinaryTree<Book>(array, comparer);
var enumeratorBook = tree.GetEnumerator();
var enumeratorResult = result.GetEnumerator();
while (enumeratorBook.MoveNext() && enumeratorResult.MoveNext())
{
Assert.AreEqual(enumeratorResult.Current, enumeratorBook.Current);
}
}
