class TestOfferApplicator(TestCase):
def setUp(self):
self.applicator = Applicator()
self.basket = Basket.objects.create()
self.product = create_product(price=D('100'))
rng = G(models.Range, includes_all_products=True)
self.condition = G(models.Condition,
range=rng,
type="Value",
value=D('100'),
proxy_class=None)
self.benefit = G(models.Benefit,
range=rng,
type="Absolute",
value=D('10'))
def test_applies_offer_multiple_times_by_default(self):
self.basket.add_product(self.product, 5)
offer = models.ConditionalOffer(id="test",
condition=self.condition,
benefit=self.benefit)
self.applicator.apply_offers(self.basket, [offer])
self.assertEqual(
5, self.basket.offer_applications.applications["test"]['freq'])
def test_respects_maximum_applications_field(self):
self.basket.add_product(self.product, 5)
offer = models.ConditionalOffer(id="test",
condition=self.condition,
benefit=self.benefit,
max_basket_applications=1)
self.applicator.apply_offers(self.basket, [offer])
self.assertEqual(
1, self.basket.offer_applications.applications["test"]['freq'])
class TestOfferApplicator(TestCase):
def setUp(self):
self.applicator = Applicator()
self.basket = BasketFactory()
rng = RangeFactory(includes_all_products=True)
self.condition = ConditionFactory(
range=rng, type=ConditionFactory._meta.model.VALUE,
value=D('100'), proxy_class=None)
self.benefit = BenefitFactory(
range=rng, type=BenefitFactory._meta.model.FIXED,
value=D('10'))
def test_applies_offer_multiple_times_by_default(self):
add_product(self.basket, D('100'), 5)
offer = ConditionalOfferFactory(
pk=1, condition=self.condition, benefit=self.benefit)
self.applicator.apply
self.applicator.apply_offers(self.basket, [offer])
line = self.basket.all_lines()[0]
self.assertTrue(line.quantity_with_offer_discount(offer) == 5)
def test_respects_maximum_applications_field(self):
add_product(self.basket, D('100'), 5)
offer = ConditionalOfferFactory(
pk=1, condition=self.condition, benefit=self.benefit,
max_basket_applications=1)
self.applicator.apply_offers(self.basket, [offer])
line = self.basket.all_lines()[0]
self.assertTrue(line.quantity_with_offer_discount(offer) == 5)
applications = self.basket.offer_applications.applications
self.assertTrue(applications[1]['freq'] == 1)
def test_uses_offers_in_order_of_descending_priority(self):
self.applicator.get_site_offers = Mock(
return_value=[models.ConditionalOffer(
name="offer1", condition=self.condition, benefit=self.benefit,
priority=1)])
self.applicator.get_user_offers = Mock(
return_value=[models.ConditionalOffer(
name="offer2", condition=self.condition, benefit=self.benefit,
priority=-1)])
offers = self.applicator.get_offers(self.basket)
priorities = [offer.priority for offer in offers]
self.assertEqual(sorted(priorities, reverse=True), priorities)
def test_get_site_offers(self):
models.ConditionalOffer.objects.create(
name="globaloffer", condition=self.condition,
benefit=self.benefit, offer_type=models.ConditionalOffer.SITE)
models.ConditionalOffer.objects.create(
name="sessionoffer", condition=self.condition,
benefit=self.benefit, offer_type=models.ConditionalOffer.SESSION)
site_offers = Applicator().get_site_offers()
# Only one offer should be returned
self.assertEqual(len(site_offers), 1)
self.assertEqual(site_offers[0].name, "globaloffer")
class TestOfferApplicator(TestCase):
def setUp(self):
self.applicator = Applicator()
self.basket = BasketFactory()
rng = RangeFactory(includes_all_products=True)
self.condition = ConditionFactory(
range=rng, type=ConditionFactory._meta.model.VALUE,
value=D('100'), proxy_class=None)
self.benefit = BenefitFactory(
range=rng, type=BenefitFactory._meta.model.FIXED,
value=D('10'))
def test_applies_offer_multiple_times_by_default(self):
add_product(self.basket, D('100'), 5)
offer = ConditionalOfferFactory(
pk=1, condition=self.condition, benefit=self.benefit)
self.applicator.apply
self.applicator.apply_offers(self.basket, [offer])
line = self.basket.all_lines()[0]
self.assertTrue(line.quantity_with_offer_discount(offer) == 5)
def test_respects_maximum_applications_field(self):
add_product(self.basket, D('100'), 5)
offer = ConditionalOfferFactory(
pk=1, condition=self.condition, benefit=self.benefit,
max_basket_applications=1)
self.applicator.apply_offers(self.basket, [offer])
line = self.basket.all_lines()[0]
self.assertTrue(line.quantity_with_offer_discount(offer) == 5)
applications = self.basket.offer_applications.applications
self.assertTrue(applications[1]['freq'] == 1)
def test_uses_offers_in_order_of_descending_priority(self):
self.applicator.get_site_offers = Mock(
return_value=[models.ConditionalOffer(
name="offer1", condition=self.condition, benefit=self.benefit,
priority=1)])
self.applicator.get_user_offers = Mock(
return_value=[models.ConditionalOffer(
name="offer2", condition=self.condition, benefit=self.benefit,
priority=-1)])
offers = self.applicator.get_offers(self.basket)
priorities = [offer.priority for offer in offers]
self.assertEqual(sorted(priorities, reverse=True), priorities)
def test_get_site_offers(self):
models.ConditionalOffer.objects.create(
name="globaloffer", condition=self.condition,
benefit=self.benefit, offer_type=models.ConditionalOffer.SITE)
models.ConditionalOffer.objects.create(
name="sessionoffer", condition=self.condition,
benefit=self.benefit, offer_type=models.ConditionalOffer.SESSION)
site_offers = Applicator().get_site_offers()
# Only one offer should be returned
self.assertEqual(len(site_offers), 1)
self.assertEqual(site_offers[0].name, "globaloffer")
class TestOfferApplicator(TestCase):
def setUp(self):
self.applicator = Applicator()
self.basket = Basket.objects.create()
self.product = create_product(price=D('100'))
rng = G(models.Range, includes_all_products=True)
self.condition = G(models.Condition, range=rng, type="Value",
value=D('100'), proxy_class=None)
self.benefit = G(models.Benefit, range=rng, type="Absolute",
value=D('10'))
def test_applies_offer_multiple_times_by_default(self):
self.basket.add_product(self.product, 5)
offer = models.ConditionalOffer(
id="test", condition=self.condition, benefit=self.benefit)
self.applicator.apply_offers(self.basket, [offer])
self.assertEqual(5, self.basket.offer_applications.applications["test"]['freq'])
def test_respects_maximum_applications_field(self):
self.basket.add_product(self.product, 5)
offer = models.ConditionalOffer(
id="test", condition=self.condition, benefit=self.benefit,
max_basket_applications=1)
self.applicator.apply_offers(self.basket, [offer])
self.assertEqual(1, self.basket.offer_applications.applications["test"]['freq'])
class TestOfferApplicator(TestCase):
def setUp(self):
self.applicator = Applicator()
self.basket = BasketFactory()
rng = RangeFactory(includes_all_products=True)
self.condition = ConditionFactory(
range=rng,
type=ConditionFactory._meta.model.VALUE,
value=D('100'),
proxy_class=None)
self.benefit = BenefitFactory(range=rng,
type=BenefitFactory._meta.model.FIXED,
value=D('10'),
max_affected_items=1)
def test_applies_offer_multiple_times_by_default(self):
add_product(self.basket, D('100'), 5)
offer = ConditionalOfferFactory(pk=1,
condition=self.condition,
benefit=self.benefit)
self.applicator.apply_offers(self.basket, [offer])
applications = self.basket.offer_applications.applications
self.assertEqual(5, applications[1]['freq'])
def test_respects_maximum_applications_field(self):
add_product(self.basket, D('100'), 5)
offer = ConditionalOfferFactory(pk=1,
condition=self.condition,
benefit=self.benefit,
max_basket_applications=1)
self.applicator.apply_offers(self.basket, [offer])
applications = self.basket.offer_applications.applications
self.assertEqual(1, applications[1]['freq'])
def test_uses_offers_in_order_of_descending_priority(self):
self.applicator.get_site_offers = Mock(return_value=[
models.ConditionalOffer(name="offer1",
condition=self.condition,
benefit=self.benefit,
priority=1)
])
self.applicator.get_user_offers = Mock(return_value=[
models.ConditionalOffer(name="offer2",
condition=self.condition,
benefit=self.benefit,
priority=-1)
])
offers = self.applicator.get_offers(self.basket)
priorities = [offer.priority for offer in offers]
self.assertEqual(sorted(priorities, reverse=True), priorities)
class TestOfferApplicator(TestCase):
def setUp(self):
self.applicator = Applicator()
self.basket = factories.create_basket(empty=True)
rng = G(models.Range, includes_all_products=True)
self.condition = G(models.Condition,
range=rng,
type="Value",
value=D('100'),
proxy_class=None)
self.benefit = G(models.Benefit,
range=rng,
type="Absolute",
value=D('10'))
def test_applies_offer_multiple_times_by_default(self):
add_product(self.basket, D('100'), 5)
offer = models.ConditionalOffer(id="test",
condition=self.condition,
benefit=self.benefit)
self.applicator.apply_offers(self.basket, [offer])
applications = self.basket.offer_applications.applications
self.assertEqual(5, applications["test"]['freq'])
def test_respects_maximum_applications_field(self):
add_product(self.basket, D('100'), 5)
offer = models.ConditionalOffer(id="test",
condition=self.condition,
benefit=self.benefit,
max_basket_applications=1)
self.applicator.apply_offers(self.basket, [offer])
applications = self.basket.offer_applications.applications
self.assertEqual(1, applications["test"]['freq'])
def test_uses_offers_in_order_of_descending_priority(self):
self.applicator.get_site_offers = Mock(return_value=[
models.ConditionalOffer(name="offer1",
condition=self.condition,
benefit=self.benefit,
priority=1)
])
self.applicator.get_user_offers = Mock(return_value=[
models.ConditionalOffer(name="offer2",
condition=self.condition,
benefit=self.benefit,
priority=-1)
])
offers = self.applicator.get_offers(self.basket)
priorities = [offer.priority for offer in offers]
self.assertEqual(sorted(priorities, reverse=True), priorities)
class TestAnAbsoluteDiscountAppliedWithCountConditionOnDifferentRange(TestCase):
def setUp(self):
# Flush the cache
conn = get_redis_connection('redis')
conn.flushall()
self.condition_product = factories.ProductFactory()
condition_range = factories.RangeFactory()
condition_range.add_product(self.condition_product)
self.condition = BluelightCountCondition.objects.create(
range=condition_range,
type=Condition.COUNT,
value=2)
self.benefit_product = factories.ProductFactory()
benefit_range = factories.RangeFactory()
benefit_range.add_product(self.benefit_product)
self.benefit = BluelightAbsoluteDiscountBenefit.objects.create(
range=benefit_range,
type=Benefit.FIXED,
value=D('3.00'))
self.offer = ConditionalOffer(
id=1, condition=self.condition, benefit=self.benefit)
self.basket = factories.create_basket(empty=True)
self.applicator = Applicator()
def test_succcessful_application_consumes_correctly(self):
add_product(self.basket, product=self.condition_product, quantity=2)
add_product(self.basket, product=self.benefit_product, quantity=1)
self.applicator.apply_offers(self.basket, [self.offer])
discounts = self.basket.offer_applications.offer_discounts
self.assertEqual(len(discounts), 1)
self.assertEqual(discounts[0]['freq'], 1)
def test_condition_is_consumed_correctly(self):
# Testing an error case reported on the mailing list
add_product(self.basket, product=self.condition_product, quantity=3)
add_product(self.basket, product=self.benefit_product, quantity=2)
self.applicator.apply_offers(self.basket, [self.offer])
discounts = self.basket.offer_applications.offer_discounts
self.assertEqual(len(discounts), 1)
self.assertEqual(discounts[0]['freq'], 1)
class TestAnAbsoluteDiscountAppliedWithCountConditionOnDifferentRange(TestCase):
def setUp(self):
self.condition_product = factories.ProductFactory()
condition_range = factories.RangeFactory()
condition_range.add_product(self.condition_product)
self.condition = BluelightCountCondition.objects.create(
range=condition_range,
type=Condition.COUNT,
value=2)
self.benefit_product = factories.ProductFactory()
benefit_range = factories.RangeFactory()
benefit_range.add_product(self.benefit_product)
self.benefit = BluelightAbsoluteDiscountBenefit.objects.create(
range=benefit_range,
type=Benefit.FIXED,
value=D('3.00'))
self.offer = ConditionalOffer(
id=1, condition=self.condition, benefit=self.benefit)
self.basket = factories.create_basket(empty=True)
self.applicator = Applicator()
def test_succcessful_application_consumes_correctly(self):
add_product(self.basket, product=self.condition_product, quantity=2)
add_product(self.basket, product=self.benefit_product, quantity=1)
self.applicator.apply_offers(self.basket, [self.offer])
discounts = self.basket.offer_applications.offer_discounts
self.assertEqual(len(discounts), 1)
self.assertEqual(discounts[0]['freq'], 1)
def test_condition_is_consumed_correctly(self):
# Testing an error case reported on the mailing list
add_product(self.basket, product=self.condition_product, quantity=3)
add_product(self.basket, product=self.benefit_product, quantity=2)
self.applicator.apply_offers(self.basket, [self.offer])
discounts = self.basket.offer_applications.offer_discounts
self.assertEqual(len(discounts), 1)
self.assertEqual(discounts[0]['freq'], 1)
class TestOfferApplicator(TestCase):
def setUp(self):
self.applicator = Applicator()
self.basket = BasketFactory()
rng = RangeFactory(includes_all_products=True)
self.condition = ConditionFactory(
range=rng, type=ConditionFactory._meta.model.VALUE,
value=D('100'), proxy_class=None)
self.benefit = BenefitFactory(
range=rng, type=BenefitFactory._meta.model.FIXED,
value=D('10'), max_affected_items=1)
def test_applies_offer_multiple_times_by_default(self):
add_product(self.basket, D('100'), 5)
offer = ConditionalOfferFactory(
pk=1, condition=self.condition, benefit=self.benefit)
self.applicator.apply_offers(self.basket, [offer])
applications = self.basket.offer_applications.applications
self.assertEqual(5, applications[1]['freq'])
def test_respects_maximum_applications_field(self):
add_product(self.basket, D('100'), 5)
offer = ConditionalOfferFactory(
pk=1, condition=self.condition, benefit=self.benefit,
max_basket_applications=1)
self.applicator.apply_offers(self.basket, [offer])
applications = self.basket.offer_applications.applications
self.assertEqual(1, applications[1]['freq'])
def test_uses_offers_in_order_of_descending_priority(self):
self.applicator.get_site_offers = Mock(
return_value=[models.ConditionalOffer(
name="offer1", condition=self.condition, benefit=self.benefit,
priority=1)])
self.applicator.get_user_offers = Mock(
return_value=[models.ConditionalOffer(
name="offer2", condition=self.condition, benefit=self.benefit,
priority=-1)])
offers = self.applicator.get_offers(self.basket)
priorities = [offer.priority for offer in offers]
self.assertEqual(sorted(priorities, reverse=True), priorities)
def test_apply_offer_with_multibuy_benefit_and_count_condition(self):
rng = RangeFactory(includes_all_products=True)
condition = ConditionFactory(range=rng,
type=ConditionFactory._meta.model.COUNT,
value=1)
benefit = BenefitFactory(range=rng,
type=BenefitFactory._meta.model.MULTIBUY,
value=1)
offer = ConditionalOfferFactory(condition=condition, benefit=benefit)
add_product(self.basket, D('100'), 5)
applicator = Applicator()
applicator.apply_offers(self.basket, [offer])
line = self.basket.all_lines()[0]
assert line.quantity_with_offer_discount(offer) == 1
self.basket.refresh_from_db()
assert self.basket.total_discount == D('100')
class TestOfferApplicator(TestCase):
def setUp(self):
self.applicator = Applicator()
self.basket = factories.create_basket(empty=True)
rng = G(models.Range, includes_all_products=True)
self.condition = G(models.Condition, range=rng, type="Value",
value=D('100'), proxy_class=None)
self.benefit = G(models.Benefit, range=rng, type="Absolute",
value=D('10'))
def test_applies_offer_multiple_times_by_default(self):
add_product(self.basket, D('100'), 5)
offer = models.ConditionalOffer(
id="test", condition=self.condition, benefit=self.benefit)
self.applicator.apply_offers(self.basket, [offer])
applications = self.basket.offer_applications.applications
self.assertEqual(5, applications["test"]['freq'])
def test_respects_maximum_applications_field(self):
add_product(self.basket, D('100'), 5)
offer = models.ConditionalOffer(
id="test", condition=self.condition, benefit=self.benefit,
max_basket_applications=1)
self.applicator.apply_offers(self.basket, [offer])
applications = self.basket.offer_applications.applications
self.assertEqual(1, applications["test"]['freq'])
def test_uses_offers_in_order_of_descending_priority(self):
self.applicator.get_site_offers = Mock(
return_value=[models.ConditionalOffer(
name="offer1", condition=self.condition, benefit=self.benefit,
priority=1)])
self.applicator.get_user_offers = Mock(
return_value=[models.ConditionalOffer(
name="offer2", condition=self.condition, benefit=self.benefit,
priority=-1)])
offers = self.applicator.get_offers(Mock(), self.basket)
priorities = [offer.priority for offer in offers]
self.assertEqual(sorted(priorities, reverse=True), priorities)
class TestBasketLineForm(TestCase):
def setUp(self):
self.applicator = Applicator()
rng = RangeFactory(includes_all_products=True)
self.condition = ConditionFactory(
range=rng,
type=ConditionFactory._meta.model.VALUE,
value=D('100'),
proxy_class=None)
self.benefit = BenefitFactory(range=rng,
type=BenefitFactory._meta.model.FIXED,
value=D('10'),
max_affected_items=1)
self.basket = factories.create_basket()
self.line = self.basket.all_lines()[0]
def mock_availability_return_value(self, is_available, reason=''):
policy = self.line.purchase_info.availability
policy.is_purchase_permitted = mock.MagicMock(
return_value=(is_available, reason))
def build_form(self, quantity=None):
if quantity is None:
quantity = self.line.quantity
return forms.BasketLineForm(strategy=self.basket.strategy,
data={'quantity': quantity},
instance=self.line)
def test_enforces_availability_policy_for_valid_quantities(self):
self.mock_availability_return_value(True)
form = self.build_form()
self.assertTrue(form.is_valid())
def test_enforces_availability_policy_for_invalid_quantities(self):
self.mock_availability_return_value(False, "Some reason")
form = self.build_form()
self.assertFalse(form.is_valid())
self.assertEqual(form.errors['quantity'], ['Some reason'])
def test_skips_availability_policy_for_zero_quantities(self):
self.mock_availability_return_value(True)
form = self.build_form(quantity=0)
self.assertTrue(form.is_valid())
def test_enforces_max_line_quantity_for_new_product(self):
invalid_qty = settings.OSCAR_MAX_BASKET_QUANTITY_THRESHOLD + 1
form = self.build_form(quantity=invalid_qty)
self.assertFalse(form.is_valid())
@override_settings(OSCAR_MAX_BASKET_QUANTITY_THRESHOLD=10)
def test_enforce_max_line_quantity_for_existing_product(self):
self.basket.flush()
product = factories.create_product(num_in_stock=20)
add_product(self.basket, D('100'), 4, product)
self.line = self.basket.all_lines()[0]
form = self.build_form(quantity=6)
self.assertTrue(form.is_valid())
form.save()
form = self.build_form(quantity=11)
self.assertFalse(form.is_valid())
def test_line_quantity_max_attribute_per_num_available(self):
self.basket.flush()
product = factories.create_product(num_in_stock=20)
add_product(self.basket, D('100'), 4, product)
self.line = self.basket.all_lines()[0]
form = self.build_form()
self.assertIn('max="20"', str(form['quantity']))
@override_settings(OSCAR_MAX_BASKET_QUANTITY_THRESHOLD=10)
def test_line_quantity_max_attribute_per_basket_threshold(self):
self.basket.flush()
product = factories.create_product(num_in_stock=20)
add_product(self.basket, D('100'), 4, product)
self.line = self.basket.all_lines()[0]
form = self.build_form()
self.assertIn('max="6"', str(form['quantity']))
def test_basketline_formset_ordering(self):
# when we use a unordered queryset in the Basketlineformset, the
# discounts will be lost because django will query the database
# again to enforce ordered results
add_product(self.basket, D('100'), 5)
offer = ConditionalOfferFactory(pk=1,
condition=self.condition,
benefit=self.benefit)
# now we force an unordered queryset so we can see that our discounts
# will disappear due to a new ordering query (see django/forms/model.py)
default_line_ordering = Line._meta.ordering
Line._meta.ordering = []
self.basket._lines = self.basket.lines.all()
self.applicator.apply_offers(self.basket, [offer])
formset = formsets.BasketLineFormSet(strategy=self.basket.strategy,
queryset=self.basket.all_lines())
# the discount is in all_lines():
self.assertTrue(self.basket.all_lines()[0].has_discount)
# but not in the formset
self.assertFalse(formset.forms[0].instance.has_discount)
# Restore the ordering on the line
Line._meta.ordering = default_line_ordering
# clear the cached lines and apply the offer again
self.basket._lines = None
self.applicator.apply_offers(self.basket, [offer])
formset = formsets.BasketLineFormSet(strategy=self.basket.strategy,
queryset=self.basket.all_lines())
self.assertTrue(formset.forms[0].instance.has_discount)
class TestBasketLineForm(TestCase):
def setUp(self):
self.applicator = Applicator()
rng = RangeFactory(includes_all_products=True)
self.condition = ConditionFactory(
range=rng, type=ConditionFactory._meta.model.VALUE,
value=D('100'), proxy_class=None)
self.benefit = BenefitFactory(
range=rng, type=BenefitFactory._meta.model.FIXED,
value=D('10'), max_affected_items=1)
self.basket = factories.create_basket()
self.line = self.basket.all_lines()[0]
def mock_availability_return_value(self, is_available, reason=''):
policy = self.line.purchase_info.availability
policy.is_purchase_permitted = mock.MagicMock(
return_value=(is_available, reason))
def build_form(self, quantity=None):
if quantity is None:
quantity = self.line.quantity
return forms.BasketLineForm(
strategy=self.basket.strategy,
data={'quantity': quantity},
instance=self.line)
def test_enforces_availability_policy_for_valid_quantities(self):
self.mock_availability_return_value(True)
form = self.build_form()
self.assertTrue(form.is_valid())
def test_enforces_availability_policy_for_invalid_quantities(self):
self.mock_availability_return_value(False, "Some reason")
form = self.build_form()
self.assertFalse(form.is_valid())
self.assertEqual(
form.errors['quantity'], ['Some reason'])
def test_skips_availability_policy_for_zero_quantities(self):
self.mock_availability_return_value(True)
form = self.build_form(quantity=0)
self.assertTrue(form.is_valid())
def test_enforces_max_line_quantity_for_new_product(self):
invalid_qty = settings.OSCAR_MAX_BASKET_QUANTITY_THRESHOLD + 1
form = self.build_form(quantity=invalid_qty)
self.assertFalse(form.is_valid())
@override_settings(OSCAR_MAX_BASKET_QUANTITY_THRESHOLD=10)
def test_enforce_max_line_quantity_for_existing_product(self):
self.basket.flush()
product = factories.create_product(num_in_stock=20)
add_product(self.basket, D('100'), 4, product)
self.line = self.basket.all_lines()[0]
form = self.build_form(quantity=6)
self.assertTrue(form.is_valid())
form.save()
form = self.build_form(quantity=11)
self.assertFalse(form.is_valid())
def test_line_quantity_max_attribute_per_num_available(self):
self.basket.flush()
product = factories.create_product(num_in_stock=20)
add_product(self.basket, D('100'), 4, product)
self.line = self.basket.all_lines()[0]
form = self.build_form()
self.assertIn('max="20"', str(form['quantity']))
@override_settings(OSCAR_MAX_BASKET_QUANTITY_THRESHOLD=10)
def test_line_quantity_max_attribute_per_basket_threshold(self):
self.basket.flush()
product = factories.create_product(num_in_stock=20)
add_product(self.basket, D('100'), 4, product)
self.line = self.basket.all_lines()[0]
form = self.build_form()
self.assertIn('max="6"', str(form['quantity']))
def test_basketline_formset_ordering(self):
# when we use a unordered queryset in the Basketlineformset, the
# discounts will be lost because django will query the database
# again to enforce ordered results
add_product(self.basket, D('100'), 5)
offer = ConditionalOfferFactory(
pk=1, condition=self.condition, benefit=self.benefit)
# now we force an unordered queryset so we can see that our discounts
# will disappear due to a new ordering query (see django/forms/model.py)
default_line_ordering = Line._meta.ordering
Line._meta.ordering = []
self.basket._lines = self.basket.lines.all()
self.applicator.apply_offers(self.basket, [offer])
formset = formsets.BasketLineFormSet(
strategy=self.basket.strategy,
queryset=self.basket.all_lines())
# the discount is in all_lines():
self.assertTrue(self.basket.all_lines()[0].has_discount)
# but not in the formset
self.assertFalse(formset.forms[0].instance.has_discount)
# Restore the ordering on the line
Line._meta.ordering = default_line_ordering
# clear the cached lines and apply the offer again
self.basket._lines = None
self.applicator.apply_offers(self.basket, [offer])
formset = formsets.BasketLineFormSet(
strategy=self.basket.strategy,
queryset=self.basket.all_lines())
self.assertTrue(formset.forms[0].instance.has_discount)
