$dbh->{mock_add_resultset} = $mock_loan_length;
my $date = C4::Circulation::CalcDateDue( $start_date, $itemtype, $branchcode, $borrower );
is($date, $dateexpiry . 'T23:59:00', 'date expiry');
$dbh->{mock_add_resultset} = $mock_loan_length;
my $date = C4::Circulation::CalcDateDue( $start_date, $itemtype, $branchcode, $borrower );
is($date, $dateexpiry . 'T23:59:00', 'date expiry');