public void SplitShouldReturnNode1001WhenLeaf1()
{
// split(1) = ((1,0),(0,1))
Id one = new Id.Leaf(1);
one.Split().Should().Be(new Id.Node(new Id.Node(1, 0), new Id.Node(0, 1)));
}
public void SplitShouldReturnNode00WhenLeaf0()
{
// split(0) = (0,0)
Id zero = new Id.Leaf(0);
zero.Split().Should().Be(new Id.Node(0, 0));
}