public void TestUnmodifiedList()
{
var expected = (new[] { 1, 2, 3, 4, 5 }).ToConsList();
var zipper = ConsListZipper <int> .ToZipper(expected);
var result = zipper.ToList();
Assert.AreEqual(expected, result);
}
public void TestEmptySet()
{
var expected = 1.LiftList();
var zipper = ConsListZipper <int> .ToZipper(ConsList.Nil <int>());
var result = zipper.Set(1).ToList();
Assert.AreEqual(expected, result);
}
public void TestLast()
{
var initial = (new[] { 1, 2, 3, 4, 5 }).ToConsList();
var expected = (new[] { 1, 2, 3, 4, 6 }).ToConsList();
var zipper = ConsListZipper <int> .ToZipper(initial);
var last = zipper.Last();
var lastVal = last.Get().GetOrError(() => new Exception("Unable to get last value of zipper."));
var result = last.Set(lastVal + 1).ToList();
Assert.AreEqual(expected, result);
}
