AK.F1.Timing.Model.Collections.DoubleCollectionModelTest.adding_an_item_updates_the_range C# (CSharp) Метод

        public void adding_an_item_updates_the_range()
        {
            var model = new DoubleCollectionModel();
            var observer = model.CreateObserver();

            model.Add(1d);
            Assert.Equal(0d, model.Range);
            model.Add(10d);
            Assert.Equal(9d, model.Range);

            Assert.Equal(2, observer.GetChangeCount(x => x.Range));

            model = new DoubleCollectionModel();
            observer = model.CreateObserver();

            model.Add(-20);
            Assert.Equal(0d, model.Range);
            model.Add(-10);
            Assert.Equal(10d, model.Range);
            model.Add(0d);
            Assert.Equal(20d, model.Range);
            model.Add(10d);
            Assert.Equal(30d, model.Range);

            Assert.Equal(4, observer.GetChangeCount(x => x.Range));
        }