public void Process_SortsEnabledColumns()
{
IQueryable <GridModel> items = new[]
{
new GridModel {
Name = "a", Text = "a", Sum = 20
},
new GridModel {
Name = "b", Text = "b", Sum = 10
},
new GridModel {
Name = "a", Text = "c", Sum = 10
}
}.AsQueryable();
sumColumn.Sort.IsEnabled = true;
nameColumn.Sort.IsEnabled = true;
textColumn.Sort.IsEnabled = false;
sort.Grid.Query = HttpUtility.ParseQueryString("sort=text asc,name asc,sum asc");
IQueryable <GridModel> expected = items.OrderBy(item => item.Name).ThenBy(item => item.Sum);
IQueryable <GridModel> actual = sort.Process(items);
Assert.Equal(expected, actual);
}