public void Remove_Added_Success()
        {
            var collection = new TrackedModelCollection <BlankAggregate>();
            var model      = new BlankAggregate();

            collection.New(model);

            Assert.DoesNotThrow(() =>
            {
                collection.Remove(model);
            });

            CollectionAssert.DoesNotContain(collection.Select(m => m.Model), model);
        }