public void ContainsValue() { var rd = new RouletteDictionary <string, int>(); for (int i = 0; i < 100; i++) { rd.Add(i.ToString(), i); } rd.Remove("42"); Assert.True(rd.ContainsValue(66)); Assert.True(rd.Values.Contains(88)); Assert.False(rd.ContainsValue(42)); Assert.False(rd.ContainsValue(543434)); }