@Test
public void should_create_stalmentItems() throws Exception {
final InstalmentServiceImpl instalmentService = new InstalmentServiceImpl();
Consumer consumer = TestHelper.consumer(1, "name");
Bill bill = TestHelper.bill(1, 900, new Timestamp(1447048827122L), consumer);
InstalmentPolicy policy = new InstalmentPolicy(3, 1);
final InstalmentRequest instalment = instalmentService.createInstalment(900, bill, policy);
assertThat(instalment.getItems().size(), is(policy.getTerm()));
final int amountPerTerm = bill.getAmount() / policy.getTerm();
final InstalmentItem item1 = instalment.getItems().get(0);
final InstalmentItem item2 = instalment.getItems().get(1);
final InstalmentItem item3 = instalment.getItems().get(2);
assertThat(item1.getCommission(), is((int) (policy.getCommission() * 0.01 * amountPerTerm)));
assertThat(item1.getRepaymentDay(), is(bill.getRepaymentDay()));
assertThat(item2.getRepaymentDay().toString(), is(Date.valueOf("2016-01-03").toString()));
assertThat(item3.getRepaymentDay().toString(), is(Date.valueOf("2016-02-03").toString()));
}
