public void IsEmptyTest()
{
var list = CatenableList <string> .Empty;
Assert.IsTrue(CatenableList <string> .IsEmpty(list));
Assert.AreEqual("\u2205", DumpList(list));
list = CatenableList <string> .Cons("A", list);
Assert.IsFalse(CatenableList <string> .IsEmpty(list));
Assert.AreEqual("A", DumpList(list));
}
private static string DumpList <T>(CatenableList <T> .C list)
{
if (CatenableList <T> .IsEmpty(list))
{
return("\u2205");
}
var result = new StringBuilder();
while (!CatenableList <T> .IsEmpty(list))
{
result.Append(CatenableList <T> .Head(list));
list = CatenableList <T> .Tail(list);
result.Append(", ");
}
result.Remove(result.Length - 2, 2);
return(result.ToString());
}