@Test
public void shouldAddExpenseIfConversionInformationIsConsistent() throws Exception {

    final Nobt nobt = aNobt()
            .withCurrency(new CurrencyKey("EUR"))
            .build();
    final ExpenseDraft expenseDraft = anExpenseDraft()
            .withConversionInformation(new ConversionInformation(new CurrencyKey("USD"), BigDecimal.TEN))
            .build();
    nobt.createExpenseFrom(expenseDraft);
}