@Test
public void testHandleItemReservedEvent() {

    testSubject.on(new ItemsReservedEvent(portfolioId, itemId, transactionId, DEFAULT_AMOUNT_ITEMS));
    verify(portfolioViewRepository).save(argThat(new PortfolioEntryMatcher(
            itemId.getIdentifier(), 1, DEFAULT_AMOUNT_ITEMS, 1, 2 * DEFAULT_AMOUNT_ITEMS
    )));
}