public void TestSetPercent()
        {
            const String  SEVENTY_FIVE_PERCENT  = "75%";
            const String  TWENTY_FIVE_PERCENT   = "25%";
            CategoryModel categoryModel         = new CategoryModel(); // TODO: 初始化為適當值
            Category      categoryMovie         = new Category(CATEGORY_NAME_MOVIE);
            Category      categoryEntertainment = new Category(CATEGORY_NAME_ENTERTAINMENT);

            categoryModel.AddCategory(categoryMovie);
            categoryModel.AddCategory(categoryEntertainment);
            RecordModel             recordModel    = new RecordModel(categoryModel);                 // TODO: 初始化為適當值
            StatisticModel          statisticModel = new StatisticModel(categoryModel, recordModel); // TODO: 初始化為適當值
            BindingList <Statistic> statistics     = new BindingList <Statistic>();                  // TODO: 初始化為適當值
            Statistic statisticMovie         = new Statistic(categoryMovie);
            Statistic statisticEntertainment = new Statistic(categoryEntertainment);

            statisticMovie.Amounts = 1000;
            statistics.Add(statisticMovie);
            statisticEntertainment.Amounts = 3000;
            statistics.Add(statisticEntertainment);
            int amounts = 4000; // TODO: 初始化為適當值

            statisticModel.SetPercent(statistics, amounts);
            Assert.AreEqual(TWENTY_FIVE_PERCENT, statisticMovie.Percent);
            Assert.AreEqual(SEVENTY_FIVE_PERCENT, statisticEntertainment.Percent);
        }