@Test
public void accountsForInstrumentsTest() {

	TradeInfoService<Long, String, Long> service = createService();
	Collection<Long> accountIds = service
			.findAllAccountsWithInstrumentTrades(new TradeableInstrument<String>("EUR_USD"));
	assertEquals(2, accountIds.size());
	accountIds = service.findAllAccountsWithInstrumentTrades(new TradeableInstrument<String>("EUR_JPY"));
	assertEquals(1, accountIds.size());
}