symposion_app/registrasion/tests/test_cart.py

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import datetime
import pytz
from decimal import Decimal
from django.contrib.auth.models import User
from django.core.exceptions import ObjectDoesNotExist
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from django.core.exceptions import ValidationError
from django.test import TestCase
from registrasion import models as rego
from registrasion.controllers.cart import CartController
from registrasion.controllers.product import ProductController
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from patch_datetime import SetTimeMixin
UTC = pytz.timezone('UTC')
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class RegistrationCartTestCase(SetTimeMixin, TestCase):
def setUp(self):
super(RegistrationCartTestCase, self).setUp()
@classmethod
def setUpTestData(cls):
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cls.USER_1 = User.objects.create_user(
username='testuser',
email='test@example.com',
password='top_secret')
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cls.USER_2 = User.objects.create_user(
username='testuser2',
email='test2@example.com',
password='top_secret')
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cls.RESERVATION = datetime.timedelta(hours=1)
cls.categories = []
for i in xrange(2):
cat = rego.Category.objects.create(
name="Category " + str(i + 1),
description="This is a test category",
order=i,
render_type=rego.Category.RENDER_TYPE_RADIO,
required=False,
)
cat.save()
cls.categories.append(cat)
cls.CAT_1 = cls.categories[0]
cls.CAT_2 = cls.categories[1]
cls.products = []
for i in xrange(4):
prod = rego.Product.objects.create(
name="Product " + str(i + 1),
description="This is a test product.",
category=cls.categories[i / 2], # 2 products per category
price=Decimal("10.00"),
reservation_duration=cls.RESERVATION,
limit_per_user=10,
order=1,
)
prod.save()
cls.products.append(prod)
cls.PROD_1 = cls.products[0]
cls.PROD_2 = cls.products[1]
cls.PROD_3 = cls.products[2]
cls.PROD_4 = cls.products[3]
cls.PROD_4.price = Decimal("5.00")
cls.PROD_4.save()
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# Burn through some carts -- this made some past EC tests fail
current_cart = CartController.for_user(cls.USER_1)
current_cart.cart.active = False
current_cart.cart.save()
current_cart = CartController.for_user(cls.USER_2)
current_cart.cart.active = False
current_cart.cart.save()
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@classmethod
def make_ceiling(cls, name, limit=None, start_time=None, end_time=None):
limit_ceiling = rego.TimeOrStockLimitEnablingCondition.objects.create(
description=name,
mandatory=True,
limit=limit,
start_time=start_time,
end_time=end_time
)
limit_ceiling.save()
limit_ceiling.products.add(cls.PROD_1, cls.PROD_2)
limit_ceiling.save()
@classmethod
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def make_category_ceiling(
cls, name, limit=None, start_time=None, end_time=None):
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limit_ceiling = rego.TimeOrStockLimitEnablingCondition.objects.create(
description=name,
mandatory=True,
limit=limit,
start_time=start_time,
end_time=end_time
)
limit_ceiling.save()
limit_ceiling.categories.add(cls.CAT_1)
limit_ceiling.save()
@classmethod
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def make_discount_ceiling(
cls, name, limit=None, start_time=None, end_time=None):
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limit_ceiling = rego.TimeOrStockLimitDiscount.objects.create(
description=name,
start_time=start_time,
end_time=end_time,
limit=limit,
)
limit_ceiling.save()
rego.DiscountForProduct.objects.create(
discount=limit_ceiling,
product=cls.PROD_1,
percentage=100,
quantity=10,
).save()
class BasicCartTests(RegistrationCartTestCase):
def test_get_cart(self):
current_cart = CartController.for_user(self.USER_1)
current_cart.cart.active = False
current_cart.cart.save()
old_cart = current_cart
current_cart = CartController.for_user(self.USER_1)
self.assertNotEqual(old_cart.cart, current_cart.cart)
current_cart2 = CartController.for_user(self.USER_1)
self.assertEqual(current_cart.cart, current_cart2.cart)
def test_add_to_cart_collapses_product_items(self):
current_cart = CartController.for_user(self.USER_1)
# Add a product twice
current_cart.add_to_cart(self.PROD_1, 1)
current_cart.add_to_cart(self.PROD_1, 1)
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# Count of products for a given user should be collapsed.
items = rego.ProductItem.objects.filter(
cart=current_cart.cart,
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product=self.PROD_1)
self.assertEqual(1, len(items))
item = items[0]
self.assertEquals(2, item.quantity)
def test_set_quantity(self):
current_cart = CartController.for_user(self.USER_1)
def get_item():
return rego.ProductItem.objects.get(
cart=current_cart.cart,
product=self.PROD_1)
current_cart.set_quantity(self.PROD_1, 1)
self.assertEqual(1, get_item().quantity)
# Setting the quantity to zero should remove the entry from the cart.
current_cart.set_quantity(self.PROD_1, 0)
with self.assertRaises(ObjectDoesNotExist):
get_item()
current_cart.set_quantity(self.PROD_1, 9)
self.assertEqual(9, get_item().quantity)
with self.assertRaises(ValidationError):
current_cart.set_quantity(self.PROD_1, 11)
self.assertEqual(9, get_item().quantity)
with self.assertRaises(ValidationError):
current_cart.set_quantity(self.PROD_1, -1)
self.assertEqual(9, get_item().quantity)
current_cart.set_quantity(self.PROD_1, 2)
self.assertEqual(2, get_item().quantity)
def test_add_to_cart_product_per_user_limit(self):
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current_cart = CartController.for_user(self.USER_1)
# User should be able to add 1 of PROD_1 to the current cart.
current_cart.add_to_cart(self.PROD_1, 1)
# User should be able to add 1 of PROD_1 to the current cart.
current_cart.add_to_cart(self.PROD_1, 1)
# User should not be able to add 10 of PROD_1 to the current cart now,
# because they have a limit of 10.
with self.assertRaises(ValidationError):
current_cart.add_to_cart(self.PROD_1, 10)
current_cart.cart.active = False
current_cart.cart.save()
current_cart = CartController.for_user(self.USER_1)
# User should not be able to add 10 of PROD_1 to the current cart now,
# even though it's a new cart.
with self.assertRaises(ValidationError):
current_cart.add_to_cart(self.PROD_1, 10)
# Second user should not be affected by first user's limits
second_user_cart = CartController.for_user(self.USER_2)
second_user_cart.add_to_cart(self.PROD_1, 10)
def set_limits(self):
self.CAT_2.limit_per_user = 10
self.PROD_2.limit_per_user = None
self.PROD_3.limit_per_user = None
self.PROD_4.limit_per_user = 6
self.CAT_2.save()
self.PROD_2.save()
self.PROD_3.save()
self.PROD_4.save()
def test_per_user_product_limit_ignored_if_blank(self):
self.set_limits()
current_cart = CartController.for_user(self.USER_1)
# There is no product limit on PROD_2, and there is no cat limit
current_cart.add_to_cart(self.PROD_2, 1)
# There is no product limit on PROD_3, but there is a cat limit
current_cart.add_to_cart(self.PROD_3, 1)
def test_per_user_category_limit_ignored_if_blank(self):
self.set_limits()
current_cart = CartController.for_user(self.USER_1)
# There is no product limit on PROD_2, and there is no cat limit
current_cart.add_to_cart(self.PROD_2, 1)
# There is no cat limit on PROD_1, but there is a prod limit
current_cart.add_to_cart(self.PROD_1, 1)
def test_per_user_category_limit_only(self):
self.set_limits()
current_cart = CartController.for_user(self.USER_1)
# Cannot add to cart if category limit is filled by one product.
current_cart.set_quantity(self.PROD_3, 10)
with self.assertRaises(ValidationError):
current_cart.set_quantity(self.PROD_4, 1)
# Can add to cart if category limit is not filled by one product
current_cart.set_quantity(self.PROD_3, 5)
current_cart.set_quantity(self.PROD_4, 5)
# Cannot add to cart if category limit is filled by two products
with self.assertRaises(ValidationError):
current_cart.add_to_cart(self.PROD_3, 1)
current_cart.cart.active = False
current_cart.cart.save()
current_cart = CartController.for_user(self.USER_1)
# The category limit should extend across carts
with self.assertRaises(ValidationError):
current_cart.add_to_cart(self.PROD_3, 10)
def test_per_user_category_and_product_limits(self):
self.set_limits()
current_cart = CartController.for_user(self.USER_1)
# Hit both the product and category edges:
current_cart.set_quantity(self.PROD_3, 4)
current_cart.set_quantity(self.PROD_4, 6)
with self.assertRaises(ValidationError):
# There's unlimited PROD_3, but limited in the category
current_cart.add_to_cart(self.PROD_3, 1)
current_cart.set_quantity(self.PROD_3, 0)
with self.assertRaises(ValidationError):
# There's only 6 allowed of PROD_4
current_cart.add_to_cart(self.PROD_4, 1)
# The limits should extend across carts...
current_cart.cart.active = False
current_cart.cart.save()
current_cart = CartController.for_user(self.USER_1)
current_cart.set_quantity(self.PROD_3, 4)
with self.assertRaises(ValidationError):
current_cart.set_quantity(self.PROD_3, 5)
with self.assertRaises(ValidationError):
current_cart.set_quantity(self.PROD_4, 1)
def __available_products_test(self, item, quantity):
self.set_limits()
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def get_prods():
return ProductController.available_products(
self.USER_1,
products=[self.PROD_2, self.PROD_3, self.PROD_4],
)
current_cart = CartController.for_user(self.USER_1)
prods = get_prods()
self.assertTrue(item in prods)
current_cart.add_to_cart(item, quantity)
self.assertTrue(item in prods)
current_cart.cart.active = False
current_cart.cart.save()
current_cart = CartController.for_user(self.USER_1)
prods = get_prods()
self.assertTrue(item not in prods)
def test_available_products_respects_category_limits(self):
self.__available_products_test(self.PROD_3, 10)
def test_available_products_respects_product_limits(self):
self.__available_products_test(self.PROD_4, 6)