public void SortByClauseListOptionsAddTest() { var options = new ListOptions() { Sort = "code-" }; options.AddSort((SortByClause)"total-"); Assert.Equal("code-,total-", options.Sort); options.AddSort((SortByClause)"date"); Assert.Equal("code-,total-,date+", options.Sort); options.RemoveSort((SortByClause)"total-"); Assert.Equal("code-,date+", options.Sort); options.AddSort((SortByClause)"date-"); Assert.Equal("code-,date-", options.Sort); }