public void ShouldHandleInvalidArguments()
{
Assert.Throws <ArgumentNullException>(() => default(IAsyncQueryable <Dummy>).OrderBy("Name.Length"));
Assert.Throws <ArgumentNullException>(() => data.OrderBy(null));
Assert.Throws <ArgumentNullException>(() => default(IOrderedAsyncQueryable <Dummy>).ThenBy("Name"));
Assert.Throws <ArgumentNullException>(() => data.OrderBy("Name.Length").ThenBy(null));
}