@Test
public void testCriteriaMet_itemsInList() {
// setup
Transaction transaction =
TransactionTestUtils.createTransaction(
toothBrush, milkCarton, toothBrush, chips, toothBrush, toothBrush);
Set<Integer> alreadyClaimedProducts = Sets.newHashSet(1, 3);
// test
boolean result = promotionElement.criteriaMet(transaction, alreadyClaimedProducts);
// verify
assertThat(result, is(false));
assertThat(alreadyClaimedProducts, IsIterableContainingInAnyOrder.containsInAnyOrder(1, 3));
}
@Test
public void testApplyPromotion_noDiscountsApplied() {
// setup
Transaction transaction =
TransactionTestUtils.createTransaction(
toothBrush, milkCarton, toothBrush, chips, toothBrush, toothBrush, toothBrush);
// test
promotionElement.applyPromotion(transaction);
// verify
List<TransactionItem> brushes = Lists.newArrayList(transaction.getItemMap().get(toothBrush));
assertDiscountApplied("brush 1", brushes.get(0), true, noDiscount);
assertDiscountApplied("brush 2", brushes.get(1), true, noDiscount);
assertDiscountApplied("brush 3", brushes.get(2), true, freeDiscount);
assertDiscountApplied("brush 4", brushes.get(3), false, null);
assertDiscountApplied("brush 5", brushes.get(4), false, null);
}
@Test
public void testCriteriaMet_false() {
testCriteriaMet("one element", TransactionTestUtils.createTransaction(toothBrush), false);
testCriteriaMet(
"two element", TransactionTestUtils.createTransaction(toothBrush, toothBrush), false);
testCriteriaMet(
"three element",
TransactionTestUtils.createTransaction(toothBrush, toothBrush, toothBrush),
true,
1,
2,
3);
testCriteriaMet(
"two brush, one milk",
TransactionTestUtils.createTransaction(toothBrush, toothBrush, milkCarton),
false);
testCriteriaMet(
"three brush, one milk",
TransactionTestUtils.createTransaction(toothBrush, milkCarton, toothBrush, toothBrush),
true,
1,
3,
4);
testCriteriaMet(
"four brush, one milk",
TransactionTestUtils.createTransaction(
toothBrush, milkCarton, toothBrush, chips, toothBrush, toothBrush),
true,
1,
3,
5);
}