@Test
public void checkAddingRelationship() {
rManager.removeAll();
cManager.removeAll();
iManager.removeAll();
Cake cake = new Cake(CAKE_NAME, CAKE_PRICE, CAKE_WEIGHT);
cManager.addCake(cake);
cake = cManager.getAll().get(0);
Ingredient ing = new Ingredient(ING_NAMES.get(0), ING_KINDS.get(0));
iManager.addIngredient(ing);
ing = iManager.getAll().get(0);
rManager.addRelationship(cake, ing);
List<Relationship> relations = rManager.getAll();
Relationship r = relations.get(0);
assertEquals(CAKE_NAME, cManager.getOne(r.getCakeId()).getName());
assertEquals(ING_NAMES.get(0), iManager.getOne(r.getIngredientId()).getName());
}
