@Test
void recommendWrongAmount() {

    final LoanImpl mockedLoan = LoanDescriptorTest.mockLoan();
    final LoanDescriptor ld = new LoanDescriptor(mockedLoan);
    final Optional<RecommendedLoan> r = ld.recommend(mockedLoan.getNonReservedRemainingInvestment()
        .add(1));
    assertThat(r).isEmpty();
}