public void SetOrderByTest()
{
void Test(IQueryable <AppointmentData> d, Expression <Func <AppointmentData, Object> > e, string expected)
{
Obj.SortOrder = GetRandom.String() + Obj.DescendingString;
var set = Obj.AddOrderBy(d, e);
Assert.IsNotNull(set);
Assert.AreNotEqual(d, set);
Assert.IsTrue(set.Expression.ToString()
.Contains($"Delux.Data.AppointmentData]).OrderByDescending({expected})"));
Obj.SortOrder = GetRandom.String();
set = Obj.AddOrderBy(d, e);
Assert.IsNotNull(set);
Assert.AreNotEqual(d, set);
Assert.IsTrue(set.Expression.ToString().Contains($"Delux.Data.AppointmentData]).OrderBy({expected})"));
}
Assert.IsNull(Obj.AddOrderBy(null, null));
IQueryable <AppointmentData> data = Obj.DbSet;
Assert.AreEqual(data, Obj.AddOrderBy(data, null));
Test(data, x => x.Id, "x => x.Id");
Test(data, x => x.ClientId, "x => x.ClientId");
Test(data, x => x.TreatmentId, "x => x.TreatmentId");
Test(data, x => x.TechnicianId, "x => x.TechnicianId");
Test(data, x => x.AppointmentDateTime, "x => x.AppointmentDateTime");
}