public void BubbleSortBySummary_1234567_1273456()
        {
            int[][] array = new[]
            {
                new[] { 1, 2 },
                new[] { 3, 4, 5, 6 },
                new[] { 7 }
            };

            int[][] expectedArray = new[]
            {
                new[] { 3, 4, 5, 6 },
                new[] { 7 },
                new[] { 1, 2 }
            };

            SortMethods.BubbleSortBySummary(array);

            Assert.AreEqual(array, expectedArray);
        }