public void DogsStatisticTests()
        {
            StatisticService statistic = new StatisticService();
            var dogsStatistic = statistic.GetDogsStatistic().ToList();

            int winners3Dog = dogsStatistic.First(t => t.Id == 3).NumOfVictories;
            Assert.AreEqual(2, winners3Dog);

            int winners2Dog = dogsStatistic.First(t => t.Id == 2).NumOfVictories;
            Assert.AreEqual(1, winners2Dog);

            int winners1Dog = dogsStatistic.First(t => t.Id == 1).NumOfVictories;
            Assert.AreEqual(1, winners1Dog);
        }