public void Numbers_AreNumbered()
{
DeltaTree
.Parse(
new Ops()
.Insert("A")
.Insert(new LineInsert(LineFormat.NumberPreset))
)
.Is(
new Container(new List <TreeNode>()
{
new NumbersContainer(new List <TreeNode>()
{
new TextLeaf(new List <TextInsert>()
{
new TextInsert("A")
})
})
})
);
}