public void Stress_Test() { const int iterations = 100; var random = new Random(0); var selection = new List <IndexRange>(); var expected = new List <int>(); IndexRange Generate() { var start = random.Next(100); return(new IndexRange(start, start + random.Next(20))); } for (var i = 0; i < iterations; ++i) { var toAdd = random.Next(5); for (var j = 0; j < toAdd; ++j) { var range = Generate(); IndexRange.Add(selection, range); for (var k = range.Begin; k <= range.End; ++k) { if (!expected.Contains(k)) { expected.Add(k); } } var actual = IndexRange.EnumerateIndices(selection).ToList(); expected.Sort(); Assert.Equal(expected, actual); } var toRemove = random.Next(5); for (var j = 0; j < toRemove; ++j) { var range = Generate(); IndexRange.Remove(selection, range); for (var k = range.Begin; k <= range.End; ++k) { expected.Remove(k); } var actual = IndexRange.EnumerateIndices(selection).ToList(); Assert.Equal(expected, actual); } selection.Clear(); expected.Clear(); } }