public void TestGetPositiveRecords()
{
CategoryModel categoryModel = new CategoryModel();
Category categoryMovie = new Category(CATEGORY_NAME_MOVIE);
Category categoryWork = new Category(CATEGORY_NAME_WORK);
categoryModel.AddCategory(categoryMovie);
categoryModel.AddCategory(categoryWork);
RecordModel recordModel = new RecordModel(categoryModel);
DateTime now = DateTime.Now;
DateTime date = new DateTime(now.Year, now.Month, now.Day);
Record recordMoviePositive = new Record(date, categoryMovie, 100);
Record recordMovieNegative = new Record(date, categoryMovie, -100);
Record recordWorkPositive = new Record(date, categoryWork, 100);
Record recordWorkNegative = new Record(date, categoryWork, -100);
recordModel.AddRecord(recordMoviePositive);
recordModel.AddRecord(recordMovieNegative);
recordModel.AddRecord(recordWorkPositive);
recordModel.AddRecord(recordWorkNegative);
BindingList <Record> positiveRecords = recordModel.GetPositiveRecords(recordModel.Records);
Assert.AreEqual(2, positiveRecords.Count);
}