FinalExamPrepare/DemoExam/UnitTestProject/UnitTest1.cs

using DemoExam;
using DemoExam.Model;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System;
using System.Collections.Generic;

namespace UnitTestProject
{
    [TestClass]
    public class UnitTest1
    {
        [TestMethod]
        public void CheckStatisticsCalculator1()
        {
            StatisticsCalculator statisticsCalculator = new StatisticsCalculator();
            List<Requests> requests = new List<Requests>()
            {
                new Requests() { StatusId = 2 },
                new Requests() { StatusId = 3 },
                new Requests() { StatusId = 3 },
                new Requests() { StatusId = 3 },
                new Requests() { StatusId = 1 }
            };
            Assert.AreEqual(3, statisticsCalculator.CalculateCompleteRequests(requests));
        }
    }
}