def test_cart_increase(self):
current_quantity = self.cart_item.quantity if self.cart_item else 0
CartView.update_item(
pk=self.cart_item.item.id if self.cart_item else 4,
action='increase',
user=self.user)
self.cart_item = CartItem.objects.get(user=self.user)
self.assertEqual(self.cart_item.quantity, current_quantity + 1)
def test_cart_full_update(self):
# Increase 1 time, (add the item)
CartView.update_item(pk=4, user=self.user, action='increase')
self.assertEqual(len(CartItem.objects.filter(user=self.user)), 1)
c = CartItem.objects.get(user=self.user)
# Increase to 2
CartView.update_item(pk=4, user=self.user, action='increase')
c.refresh_from_db()
self.assertEqual(c.quantity, 2)
# Decrease back to 1
CartView.update_item(pk=4, user=self.user, action='decrease')
c.refresh_from_db()
self.assertEqual(c.quantity, 1)
# Delete the instance, as quantity is 0
CartView.update_item(pk=4, user=self.user, action='decrease')
self.assertEqual(len(CartItem.objects.filter(user=self.user)), 0)
def test_add_new_to_cart(self):
CartView.update_item(pk=4, user=self.user, action='increase')
self.assertEqual(len(CartItem.objects.filter(user=self.user)), 1)