@Test
public void testUpdateStatusToAddedRemovesFromCart() {
groceryCartService.addToShoppingList("Ham", 32);
int id = groceryCartService.getShoppingList().get(0).getId();
groceryCartService.updateStatus(id, CartStatus.ADDED);
assertEquals(
"Cart should have exactly one item that was added", 1, groceryCartService.getCart().size());
groceryCartService.updateStatus(id, CartStatus.PURCHASED);
assertEquals(
"Cart should have no items since only item was purchased",
0,
groceryCartService.getCart().size());
}
@Test
public void testUpdateStatusNullStatus() {
try {
groceryCartService.updateStatus(123, null);
fail("Service allowed an item to be set to null status or did not fail-fast");
} catch (IllegalArgumentException expected) {
// This is expected we want to fail fast.
}
}
@Test
public void testGetCartMultipleItems() {
groceryCartService.addToShoppingList("Ham", 32);
groceryCartService.addToShoppingList("Eggs", 21);
for (GroceryItem gi : groceryCartService.getShoppingList()) {
groceryCartService.updateStatus(gi.getId(), CartStatus.ADDED);
}
assertEquals("Cart should have exactly two items", 2, groceryCartService.getCart().size());
}
@Test
public void testUpdateStatusToPurchased() {
groceryCartService.addToShoppingList("Ham", 32);
List<GroceryItem> items = groceryCartService.getShoppingList();
int id = items.get(0).getId();
groceryCartService.updateStatus(id, CartStatus.PURCHASED);
assertEquals(
"Update did not set status to expected result",
CartStatus.PURCHASED,
groceryCartService.getItemPurchaseHistory().get(0).getGroceryItem().getStatus());
}
@Test
public void testUpdateStatusToNotFound() {
groceryCartService.addToShoppingList("Ham", 32);
List<GroceryItem> items = groceryCartService.getShoppingList();
int id = items.get(0).getId();
groceryCartService.updateStatus(id, CartStatus.NOT_FOUND);
assertEquals(
"Update did not set status to expected result",
CartStatus.NOT_FOUND,
groceryCartService.getShoppingList().get(0).getStatus());
}
@SuppressWarnings("null")
@Test
public void testUpdateStatusNullItemId() {
try {
Integer i = null;
groceryCartService.updateStatus(i, CartStatus.ADDED);
fail("Service allowed null item id to be updated or did not fail-fast");
} catch (NullPointerException expected) {
// This is expected we want to fail fast.
}
}
@Test
public void testGetItemPurchaseHistorySingle() {
groceryCartService.addToShoppingList("Ham", 32);
int id = groceryCartService.getShoppingList().get(0).getId();
groceryCartService.updateStatus(id, CartStatus.PURCHASED);
List<PurchaseRecord> purchases = groceryCartService.getItemPurchaseHistory();
assertEquals("Purchase history should have exactly one item", 1, purchases.size());
assertEquals(
"Item name in purchase history record should match the item purchased",
"Ham",
purchases.get(0).getGroceryItem().getName());
}
@Test
public void testGetCartSingleItem() {
groceryCartService.addToShoppingList("Ham", 32);
groceryCartService.updateStatus(
groceryCartService.getShoppingList().get(0).getId(), CartStatus.ADDED);
List<GroceryItem> items = groceryCartService.getCart();
assertEquals("Cart should have exactly one item that was added", 1, items.size());
assertEquals("Item in cart does not have correct name", "Ham", items.get(0).getName());
assertEquals("Item in cart does not have correct isle", 32, items.get(0).getIsle());
assertEquals(
"Item in cart does not have correct status", CartStatus.ADDED, items.get(0).getStatus());
}
@Test
public void testGetItemPurchaseHistoryMultiple() {
groceryCartService.addToShoppingList("Ham", 32);
groceryCartService.addToShoppingList("Eggs", 32);
groceryCartService.addToShoppingList("Milk", 23);
groceryCartService.addToShoppingList("Bacon", 12);
for (GroceryItem gi : groceryCartService.getShoppingList()) {
groceryCartService.updateStatus(gi.getId(), CartStatus.PURCHASED);
}
List<PurchaseRecord> purchases = groceryCartService.getItemPurchaseHistory();
assertEquals("Purchase history should have exactly four items", 4, purchases.size());
}
@Test
public void testUpdateStatusToAddedRemovesItemFromShoppingList() {
groceryCartService.addToShoppingList("Ham", 32);
assertEquals(
"Shopping list should not be empty after adding an item",
1,
groceryCartService.getShoppingList().size());
int id = groceryCartService.getShoppingList().get(0).getId();
groceryCartService.updateStatus(id, CartStatus.ADDED);
assertEquals(
"Shopping list should be empty after only item was added to cart",
0,
groceryCartService.getShoppingList().size());
}
@Test
public void testUpdateStatusNonExistingItem() {
boolean result = groceryCartService.updateStatus(123, CartStatus.NOT_FOUND);
assertFalse("Tried to update a bogus item and no business layer error occurred", result);
}