public void itHasTheLastBalanceAtDateIfThereIsABalance() throws Exception {
when(account.hasBalance()).thenReturn(true);
when(account.getBalance()).thenReturn(money("344.00", USD));
when(account.getLastActivityDate()).thenReturn(new DateTime(2009, 5, 22, 13, 25, 0, 0, DateTimeZone.UTC));
final XmlsonObject representation = presenter.present(account, Locale.GERMANY);
assertThat(representation.getString("last-balance-at"), is("20090522T132500Z"));
}