public void WhereEqualToOneRoot()
{
var root = new QTreeNode <int>(1);
var items = root.Where(x => x == 1);
Console.WriteLine(items);
var test = new[] { 1 };
Assert.True(!test.Except(items).Any());
}
public void WhereGreaterThanSevenRootChildWithChild()
{
var root = new QTreeNode <int>(1);
root.Insert(new QTreeNode <int>(2));
root.Insert(new QTreeNode <int>(3));
root.Child(1).Insert(new QTreeNode <int>(5));
root.Child(1).Insert(new QTreeNode <int>(6));
root.Child(1).Insert(new QTreeNode <int>(7));
root.Child(1).Insert(new QTreeNode <int>(8));
root.Child(1).Child(3).Insert(new QTreeNode <int>(24));
root.Child(0).Insert(new QTreeNode <int>(48));
var items = root.Where(x => x > 7);
var enumerable = items as int[] ?? items.ToArray();
Assert.True(enumerable.Contains(24));
Assert.True(enumerable.Contains(48));
Assert.True(enumerable.Contains(8));
Assert.False(enumerable.Contains(7));
Assert.False(enumerable.Contains(1));
Assert.True(enumerable.Length == 3);
}