Exemple #1
0
        public static void Run()
        {
            NumericRange empty = new NumericRange();

            Assert(empty.IsEmpty);

            NumericRange n = new NumericRange();

            Assert(!n.Contains(0));
            n.Hi = 1;
            Assert(n.Contains(0));
            Assert(!n.Contains(1));
            Assert(n.IsDisjoint(new NumericRange()));
            Assert(n.IsDisjoint(new NumericRange(1, 2)));

            NumericRange remainder;

            // Subtract - empty cases
            Assert(false == n.Subtract(empty, out remainder));
            Assert(remainder.IsEmpty);
            Assert(false == empty.Subtract(n, out remainder));

            // Subtract - disjoint
            Assert(false == NR(0, 3).Subtract(NR(3, 5), out remainder));
            n = NR(0, 3);

            // Subtract - contained
            Assert(n.Subtract(NR(0, 4), out remainder));
            Assert(n.IsEmpty);

            // Subtract - partial overlaps
            n = NR(10, 12);
            Assert(n.Subtract(NR(8, 11), out remainder));
            Assert(n == NR(11, 12));
            Assert(remainder.IsEmpty);
            n = NR(10, 12);
            Assert(n.Subtract(NR(11, 12), out remainder));
            Assert(n == NR(10, 11));
            Assert(remainder.IsEmpty);
            n = NR(10, 21);
            Assert(n.Subtract(NR(13, 17), out remainder));
            Assert(n == NR(10, 13));
            Assert(remainder == NR(17, 21));

            // Coalesce - no-ops.
            NumericRange coalesced;

            n = NR(10, 21);
            Assert(false == n.TryCoalesce(NR(0, 9), out coalesced));
            Assert(false == n.TryCoalesce(empty, out coalesced));
            Assert(n.TryCoalesce(NR(0, 10), out coalesced));
            Assert(coalesced == NR(0, 21));
            n = NR(10, 21);
            Assert(n.TryCoalesce(NR(0, 100), out coalesced));
            Assert(coalesced == NR(0, 100));

            NumericRanges r = new NumericRanges();

            Assert(r.IsEmpty);
            r.Add(0, 10);
            Assert(r.ToString() == "0-10");
            r.Add(0, 4);
            Assert(r.ToString() == "0-10");
            r.Add(20, 20);
            Assert(r.ToString() == "0-10");
            r.Add(20, 30);
            Assert(r.ToString() == "0-10,20-30");
            r.Add(10, 20);
            Assert(r.ToString() == "0-30");
            r.Add(30, 32);
            Assert(r.ToString() == "0-32");

            r.Clear();
            Assert(r.ToString() == "");

            r.Add(NR(0, 10));
            r.Add(NR(20, 30));

            var gaps = r.ListGaps(NR(0, 40)).ToList();

            Assert(gaps[0] == NR(10, 20));
            Assert(gaps[1] == NR(30, 40));
        }