Removing expired FulfillmentMixin + fixing broken tests

XCOM-307

ecommerce/extensions/api/v2/tests/views/test_orders.py

@@ -11,7 +11,7 @@ from oscar.test import factories
 
 from ecommerce.extensions.api.tests.test_authentication import AccessTokenMixin, OAUTH2_PROVIDER_URL
 from ecommerce.extensions.api.v2.tests.views import OrderDetailViewTestMixin
-from ecommerce.extensions.fulfillment.mixins import FulfillmentMixin
+from ecommerce.extensions.fulfillment.signals import SHIPPING_EVENT_NAME
 from ecommerce.extensions.fulfillment.status import LINE, ORDER
 from ecommerce.tests.mixins import UserMixin, ThrottlingMixin
 
@@ -95,9 +95,10 @@ class OrderListViewTests(AccessTokenMixin, ThrottlingMixin, UserMixin, TestCase)
 
 @ddt.ddt
 class OrderFulfillViewTests(UserMixin, TestCase):
+
     def setUp(self):
         super(OrderFulfillViewTests, self).setUp()
-        ShippingEventType.objects.get_or_create(name=FulfillmentMixin.SHIPPING_EVENT_NAME)
+        ShippingEventType.objects.get_or_create(name=SHIPPING_EVENT_NAME)
 
         self.user = self.create_user(is_superuser=True)
         self.client.login(username=self.user.username, password=self.password)

ecommerce/extensions/api/v2/views.py

@@ -3,7 +3,7 @@ import logging
 
 from django.conf import settings
 from django.contrib.auth import get_user_model
-from oscar.core.loading import get_model
+from oscar.core.loading import get_model, get_class
 from rest_framework import status, generics, viewsets, mixins
 from rest_framework.decorators import detail_route
 from rest_framework.exceptions import ParseError
@@ -20,7 +20,6 @@ from ecommerce.extensions.api.constants import APIConstants as AC
 from ecommerce.extensions.api.exceptions import BadRequestException
 from ecommerce.extensions.api.permissions import CanActForUser
 from ecommerce.extensions.checkout.mixins import EdxOrderPlacementMixin
-from ecommerce.extensions.fulfillment.mixins import FulfillmentMixin
 from ecommerce.extensions.payment import exceptions as payment_exceptions
 from ecommerce.extensions.payment.helpers import (get_processor_class, get_default_processor_class,
                                                   get_processor_class_by_name)
@@ -365,7 +364,7 @@ class OrderByBasketRetrieveView(OrderRetrieveView):
     lookup_field = 'basket_id'
 
 
-class OrderFulfillView(FulfillmentMixin, generics.UpdateAPIView):
+class OrderFulfillView(generics.UpdateAPIView):
     permission_classes = (IsAuthenticated, DjangoModelPermissions,)
     lookup_field = 'number'
     queryset = Order.objects.all()
@@ -378,7 +377,8 @@ class OrderFulfillView(FulfillmentMixin, generics.UpdateAPIView):
             return Response(status=status.HTTP_406_NOT_ACCEPTABLE)
 
         logger.info('Retrying fulfillment of order [%s]...', order.number)
-        order = self.fulfill_order(order)
+        post_checkout = get_class('checkout.signals', 'post_checkout')
+        post_checkout.send(sender=post_checkout, order=order)
 
         if order.can_retry_fulfillment:
             logger.warning('Fulfillment of order [%s] failed!', order.number)

ecommerce/extensions/dashboard/orders/tests.py

@@ -11,7 +11,7 @@ from selenium.webdriver.firefox.webdriver import WebDriver
 from selenium.webdriver.support.wait import WebDriverWait
 
 from ecommerce.extensions.dashboard.tests import DashboardViewTestMixin
-from ecommerce.extensions.fulfillment.mixins import FulfillmentMixin
+from ecommerce.extensions.fulfillment.signals import SHIPPING_EVENT_NAME
 from ecommerce.extensions.fulfillment.status import ORDER, LINE
 from ecommerce.extensions.refund.tests.mixins import RefundTestMixin
 from ecommerce.tests.mixins import UserMixin
@@ -63,7 +63,7 @@ class OrderListViewTests(OrderViewTestsMixin, RefundTestMixin, LiveServerTestCas
         self.order.save()
         self.order.lines.all().update(status=LINE.FULFILLMENT_CONFIGURATION_ERROR)
 
-        ShippingEventType.objects.get_or_create(name=FulfillmentMixin.SHIPPING_EVENT_NAME)
+        ShippingEventType.objects.get_or_create(name=SHIPPING_EVENT_NAME)
 
     def _login(self):
         """ Log into the service and navigate to the order list view. """

ecommerce/extensions/fulfillment/mixins.py

-"""Mixins to support views that fulfill orders."""
-from oscar.core.loading import get_model, get_class
-
-
-ShippingEventType = get_model('order', 'ShippingEventType')
-
-EventHandler = get_class('order.processing', 'EventHandler')
-
-
-# TODO (RFL): Retire this mixin in favor of the `post_checkout_callback`.
-class FulfillmentMixin(object):
-    """A mixin that provides the ability to fulfill orders."""
-    SHIPPING_EVENT_NAME = 'Shipped'
-
-    def fulfill_order(self, order):
-        """Attempt fulfillment of an order."""
-        order_lines = order.lines.all()
-        line_quantities = [line.quantity for line in order_lines]
-
-        shipping_event, __ = ShippingEventType.objects.get_or_create(name=self.SHIPPING_EVENT_NAME)
-        fulfilled_order = EventHandler().handle_shipping_event(order, shipping_event, order_lines, line_quantities)
-        return fulfilled_order

ecommerce/extensions/fulfillment/signals.py

 from django.dispatch import receiver
-from oscar.core.loading import get_class
-
+from oscar.core.loading import get_class, get_model
 
+ShippingEventType = get_model('order', 'ShippingEventType')
+EventHandler = get_class('order.processing', 'EventHandler')
 post_checkout = get_class('checkout.signals', 'post_checkout')
+SHIPPING_EVENT_NAME = 'Shipped'
 
 
 @receiver(post_checkout, dispatch_uid='fulfillment.post_checkout_callback')
@@ -11,7 +13,9 @@ def post_checkout_callback(sender, order=None, **kwargs):  # pylint: disable=unu
     # module will also be loaded before coverage. Module loaded after coverage are falsely listed as not covered.
     # We do not want the false report, and we do not want to omit the api module from coverage reports. This is the
     # "happy" medium.
-    from ecommerce.extensions.fulfillment import api
 
-    # TODO Determine if we need to create ShippingEvents first.
-    api.fulfill_order(order, order.lines.all())
+    order_lines = order.lines.all()
+    line_quantities = [line.quantity for line in order_lines]
+
+    shipping_event, __ = ShippingEventType.objects.get_or_create(name=SHIPPING_EVENT_NAME)
+    EventHandler().handle_shipping_event(order, shipping_event, order_lines, line_quantities)

ecommerce/extensions/order/tests/test_processing.py

@@ -2,6 +2,7 @@ from django.test import TestCase
 from oscar.core.loading import get_model
 from oscar.test import factories
 
+from ecommerce.extensions.fulfillment.signals import SHIPPING_EVENT_NAME
 from ecommerce.extensions.fulfillment.status import LINE
 from ecommerce.extensions.order.processing import EventHandler
 
@@ -11,9 +12,10 @@ ShippingEvent = get_model('order', 'ShippingEvent')
 
 
 class EventHandlerTests(TestCase):
+
     def setUp(self):
         super(EventHandlerTests, self).setUp()
-        self.shipping_event_type = ShippingEventType.objects.create(name='Shipped')
+        self.shipping_event_type = ShippingEventType.objects.create(name=SHIPPING_EVENT_NAME)
         self.order = factories.create_order()
 
     def test_create_shipping_event_all_lines_complete(self):

ecommerce/tests/mixins.py

@@ -14,7 +14,7 @@ from oscar.core.loading import get_model, get_class
 
 from ecommerce.courses.utils import mode_for_seat
 from ecommerce.extensions.api.constants import APIConstants as AC
-from ecommerce.extensions.fulfillment.mixins import FulfillmentMixin
+from ecommerce.extensions.fulfillment.signals import SHIPPING_EVENT_NAME
 
 
 Basket = get_model('basket', 'Basket')
@@ -65,7 +65,6 @@ class JwtMixin(object):
 class BasketCreationMixin(JwtMixin):
     """Provides utility methods for creating baskets in test cases."""
     PATH = reverse('api:v2:baskets:create')
-    SHIPPING_EVENT_NAME = FulfillmentMixin.SHIPPING_EVENT_NAME
     FREE_SKU = u'𝑭𝑹𝑬𝑬-𝑷𝑹𝑶𝑫𝑼𝑪𝑻'
     USERNAME = 'sgoodman'
     USER_DATA = {
@@ -131,7 +130,7 @@ class BasketCreationMixin(JwtMixin):
     ):
         """Verify that basket creation succeeded."""
         # Ideally, we'd use Oscar's ShippingEventTypeFactory here, but it's not exposed/public.
-        ShippingEventType.objects.get_or_create(name=self.SHIPPING_EVENT_NAME)
+        ShippingEventType.objects.get_or_create(name=SHIPPING_EVENT_NAME)
 
         with patch('ecommerce.extensions.analytics.utils.audit_log') as mock_audit_log:
             response = self.create_basket(skus=skus, checkout=checkout, payment_processor_name=payment_processor_name)