public void TestAdd()
        {
            string name = "soime";
            Maker maker = new Maker(name);
            FieldManagerViewModel vm = new FieldManagerViewModel();
            vm.AddField(maker);

            Assert.IsTrue(vm.MakerList.Any(x => x.Name == maker.Name));
            Assert.IsTrue(vm.MakerList.Any(x => x.ID == maker.ID));
        }
        public void TestRemove()
        {
            FieldManagerViewModel vm = new FieldManagerViewModel();
            var maker = vm.MakerList.Random();
            vm.RemoveField(maker);

            vm.MakerList.Any(x => x.Name == maker.Name);
            vm.MakerList.Any(x => x.ID == maker.ID);

            Assert.IsFalse(vm.MakerList.Any(x => x.Name == maker.Name));
            Assert.IsFalse(vm.MakerList.Any(x => x.ID == maker.ID));
        }