public void TestRemoveReferenceFromCollection()
{
object ts = update.GetResource(nhib.Timesheets.Where(t => !t.Submitted), typeof(Timesheet).FullName);
Assert.IsInstanceOfType(typeof(Timesheet), ts);
Timesheet actualTimesheet = (Timesheet)ts;
TimesheetEntry entry = actualTimesheet.Entries[0];
update.RemoveReferenceFromCollection(ts, "Entries", entry);
Assert.IsFalse(actualTimesheet.Entries.Contains(entry));
}