@Test
public void testDateOther() {
Date timeStamp = new Date(10);
OrderBookUpdate lowerBidUpdate = new OrderBookUpdate(OrderType.BID, BigDecimal.ONE, CurrencyPair.BTC_USD, BigDecimal.TEN, timeStamp, BigDecimal.TEN);
Date oldDate = orderBook.getTimeStamp();
orderBook.update(lowerBidUpdate);
assertThat(orderBook.getTimeStamp()).isAfter(oldDate);
assertThat(orderBook.getTimeStamp()).isEqualTo(timeStamp);