public void KlimatogramGeeftGemiddeldeNeerslag()
        {
            int[]       neerslagen   = { 12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17 };
            double[]    temperaturen = { 5.1, 2.2, 10.5, 12.7, 18, 20.4, 21.2, 25.2, 30.1, 19, 10, 2.2 };
            var         maanden      = _maandMockFactory.MaakMaandenInJaarMock(neerslagen, temperaturen);
            Klimatogram k            = new Klimatogram(maanden.Select(m => m.Object).ToList());

            CollectionAssert.AreEqual(k.GeefNeerslagen().ToList(), neerslagen.ToList());
        }