public void DeleteUserSelectedPeriods()
{
foreach (UserSelectedPeriodUsage periodUsage in Enum.GetValues(typeof(UserSelectedPeriodUsage)))
{
PeriodManager.AddUserSelectedPeriods(GetContext(), PeriodManagerTest.GetSomePeriodIds(GetContext()), periodUsage);
PeriodManager.DeleteUserSelectedPeriods(GetContext());
}
}