public void AddAbsoluteToDrivePlusDirectory()
{
var pt = new PathTable();
AbsolutePath drive = AbsolutePath.Create(pt, A("c", "windows", "system32"));
AbsolutePath directory = drive.CreateRelative(pt, A("c", "windows"));
AbsolutePath fullDirectory = AbsolutePath.Create(pt, A("c", "windows"));
XAssert.AreEqual(directory, fullDirectory);
XAssert.AreEqual(A("c", "windows"), directory.ToString(pt));
}