public void ProductArrayIsValid1()
        {
            var input          = new int[] { 1, 2, 3, 4, 5 };
            var expectedOutput = new int[] { 120, 60, 40, 30, 24 };

            Assert.True(Enumerable.SequenceEqual(expectedOutput, ProductArray.GetProductArray(input)));
        }
        public void ProductArrayIsValid2()
        {
            var input          = new int[] { 3, 2, 1 };
            var expectedOutput = new int[] { 2, 3, 6 };

            Assert.True(Enumerable.SequenceEqual(expectedOutput, ProductArray.GetProductArray(input)));
        }