public void GetDifferences_Diff()
        {
            QueryData target = new QueryData();
            QueryData obj    = new QueryData();

            target.Add(new object[] { "a", 1, "c" });
            obj.Add(new object[] { "a", 1, "c" });

            target.Add(new object[] { "x", 2, "z" });
            obj.Add(new object[] { "x", 2, "a" });

            Assert.AreEqual(1, target.GetDifferences(obj).Count());
        }