public void InvalidFilteringModel(bool descending, CategoriesSortingCriterion criterion) { var model = new CategoriesFilteringModel("", criterion, descending, 1, 1); var query = Context.Categories.AsQueryable(); Assert.Throws <ArgumentOutOfRangeException>(() => FilteringServices.Filter(query, model)); }
private Func <Category, object> GetLambda(CategoriesSortingCriterion criterion) { switch (criterion) { case CategoriesSortingCriterion.None: return(c => c.Id); case CategoriesSortingCriterion.Name: return(c => c.Name); default: throw new ArgumentOutOfRangeException(); } }
public void ReturnsProperlyFilteredCategories(string searchText, CategoriesSortingCriterion criterion, bool descending, int pageIndex, int pageSize) { var model = new CategoriesFilteringModel(searchText, criterion, descending, pageIndex, pageSize); var categories = AddCategories(30); var query = Context.Categories.AsQueryable(); var filteredCategories = FilteringServices.Filter(query, model).ToList(); var expected = categories.Where(c => c.Name.Contains(searchText)); var lambda = GetLambda(criterion); expected = descending ? expected.OrderByDescending(lambda) : expected.OrderBy(lambda); var expectedList = expected.Skip(model.PageIndex * model.PageSize).Take(model.PageSize).ToList(); Assert.Equal(expectedList.Count, filteredCategories.Count); for (var i = 0; i < expectedList.Count; i++) { Assert.True(expectedList[i].Id == (filteredCategories[i].Id)); } }
public CategoriesFilteringModel(string searchText, CategoriesSortingCriterion sortingCriterion, bool descending, int pageIndex, int pageSize) : base(searchText, descending, pageIndex, pageSize) { SortingCriterion = sortingCriterion; }