@Test public void checkGettingIngsofCake() { cManager.removeAll(); iManager.removeAll(); rManager.removeAll(); Cake cake = new Cake(CAKE_NAME, CAKE_PRICE, CAKE_WEIGHT); cManager.addCake(cake); cake = cManager.getAll().get(0); int i = 0; for (String n : ING_NAMES) { Ingredient ing = new Ingredient(n, ING_KINDS.get(i)); iManager.addIngredient(ing); i++; } List<Ingredient> ings = iManager.getAll(); for (Ingredient ing : ings) rManager.addRelationship(cake, ing); List<Ingredient> ingsOfCake = rManager.getIngdredientsOfCake(cake); i = 0; for (Ingredient ing : ingsOfCake) { assertEquals(ING_NAMES.get(i), ing.getName()); assertEquals(ING_KINDS.get(i), ing.getKind()); i++; } }