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public class IntegerStats
    {
        public int MaxValue { get; private set; }
        public int MinValue { get; private set; }
        public int NumberOfElements { get; private set; }
        public double AverageValue { get; private set; }

        public IntegerStats(int[] inputArray)
        {
            MaxValue = inputArray.Max();
            MinValue = inputArray.Min();
            AverageValue = inputArray.Average();
            NumberOfElements = inputArray.Length;
        }
    }

[Test]
        public void ProvideArrayReturnsIntStatsObject()
        {
            
            int[] testArray = {1, 5, 254783, 98, 4793, 67};
            IntegerStats intStats = new IntegerStats(testArray);

            Assert.IsTrue(intStats.GetType().ToString().Contains("IntegerStats"));

        }

        [Test]
        public void Length5ArrayLengthIs5()
        {
            var result = new IntegerStats(new int[]{5,4,8,9,4});

            Assert.AreEqual(result.NumberOfElements,5);
        }