public void GroupBy_Dynamic_Exceptions()
{
//Arrange
var testList = User.GenerateSampleModels(100, allowNullableProfiles: true);
var qry = testList.AsQueryable();
//Act
Assert.Throws <ParseException>(() => qry.GroupBy("Bad"));
Assert.Throws <ParseException>(() => qry.GroupBy("Id, UserName"));
Assert.Throws <ParseException>(() => qry.GroupBy("new Id, UserName"));
Assert.Throws <ParseException>(() => qry.GroupBy("new (Id, UserName"));
Assert.Throws <ParseException>(() => qry.GroupBy("new (Id, UserName, Bad)"));
Assert.Throws <ArgumentNullException>(() => DynamicQueryableExtensions.GroupBy((IQueryable <string>)null, "Id"));
Assert.Throws <ArgumentNullException>(() => qry.GroupBy(null));
Assert.Throws <ArgumentException>(() => qry.GroupBy(""));
Assert.Throws <ArgumentException>(() => qry.GroupBy(" "));
Assert.Throws <ArgumentNullException>(() => qry.GroupBy("Id", (string)null));
Assert.Throws <ArgumentException>(() => qry.GroupBy("Id", ""));
Assert.Throws <ArgumentException>(() => qry.GroupBy("Id", " "));
}
