public void boardingGate() { CollectionAssert.AreEqual(new List <int>() { 1, 8, 2, 4, 13, 11, 14, 22, 30, 21 }, exercises.BoardingGate(new List <int>() { 1, 13, 43, 22, 8, 11, 30, 2, 4, 14, 21 })); CollectionAssert.AreEqual(new List <int>() { 9, 1, 5, 19, 11, 15, 29, 21, 25 }, exercises.BoardingGate(new List <int>() { 29, 19, 9, 21, 11, 1, 0, 25, 15, 5, 31 })); CollectionAssert.AreEqual(new List <int>() { 7, 6, 17, 16, 27, 26 }, exercises.BoardingGate(new List <int>() { 0, -1, 44, 31, 17, 7, 27, 16, 26, 6 })); }