public void TestCase1()
        {
            var sut = new JumpingArray(new[] { 10, 13, 12, 14, 15 });

            var result = sut.GetJumpsUntilEnd();

            result.Should().Be(2);
        }
        public void TestCase3()
        {
            var sut = new JumpingArray(new[] { 10 });

            var result = sut.GetJumpsUntilEnd();

            result.Should().Be(1);
        }