public void ConstructsEmpty()
{
var expected = OkasakiList.Olist <int> .Empty;
var actual = OkasakiList.empty <int>();
Assert.AreEqual(expected, actual);
}
public void HeadReturnsNullOnEmptyList()
{
int?expected = null;
var emptyList = OkasakiList.empty <int>();
var actual = OkasakiList.head <int>(emptyList);
Assert.AreEqual(expected, actual);
}
public void ConConsOntoAnEmptyList()
{
var value = "hello";
var expected = OkasakiList.Olist <string> .NewValue(value, OkasakiList.Olist <string> .Empty);
var actual = OkasakiList.cons(value, OkasakiList.empty <string>());
Assert.AreEqual(expected, actual);
}