AssertJ.java

List<Item> items_1 = new ItemsProvider().getItems();
List<Item> items_2 = new ItemsProvider().getItems();

assertThat(items_1).usingFieldByFieldElementComparator().containsExactlyElementsOf(items_2);

FestAssert.java

List<Item> items_1 = new ItemsProvider().getItems();
List<Item> items_2 = new ItemsProvider().getItems();

assertThat(items_1).hasSize(items_2.size());

for (int i = 0; i < items_1.size(); i++) {
  Item item_1 = items_1.get(i);
  Item item_2 = items_2.get(i);

  assertThat(item_1.getName()).isEqualTo(item_2.getName());
  assertThat(item_1.getQuality()).isEqualTo(item_2.getQuality());
  assertThat(item_1.getSellIn()).isEqualTo(item_2.getSellIn());
}