text: from django.test import TestCase
  from django_dynamic_fixture import G
  
  from oscar.apps.offer import models
  from oscar.apps.basket.models import Basket
  from oscar_testsupport.factories import create_product
  
  
  class TestACountConditionWithPercentageDiscount(TestCase):
  
      def setUp(self):
          range = models.Range.objects.create(
              name="All products", includes_all_products=True)
          condition = models.Condition.objects.create(
              range=range,
              type=models.Condition.COUNT,
              value=3)
          benefit = models.Benefit.objects.create(
              range=range,
              type=models.Benefit.PERCENTAGE,
              value=20,
              max_affected_items=1)
          self.offer = models.ConditionalOffer.objects.create(
              name="Test",
              offer_type=models.ConditionalOffer.SITE,
              condition=condition,
              benefit=benefit)
  
      def test_consumes_correct_number_of_products_for_3_product_basket(self):
          basket = G(Basket)
          for product in [create_product()]:
              basket.add_product(product, 3)
  
          self.assertTrue(self.offer.is_condition_satisfied(basket))
          discount = self.offer.apply_benefit(basket)
          self.assertTrue(discount > 0)
          self.assertEqual(3, basket.num_items_with_discount)
          self.assertEqual(0, basket.num_items_without_discount)
          self.assertFalse(self.offer.is_condition_satisfied(basket))
  
      def test_consumes_correct_number_of_products_for_4_product_basket(self):
          basket = G(Basket)
          for product in [create_product(), create_product()]:
              basket.add_product(product, 2)
  
          self.assertTrue(self.offer.is_condition_satisfied(basket))
          discount = self.offer.apply_benefit(basket)
          self.assertTrue(discount > 0)
          self.assertEqual(3, basket.num_items_with_discount)
          self.assertEqual(1, basket.num_items_without_discount)
          self.assertFalse(self.offer.is_condition_satisfied(basket))
  
      def test_consumes_correct_number_of_products_for_6_product_basket(self):
          basket = G(Basket)
          for product in [create_product(), create_product()]:
              basket.add_product(product, 3)
  
          # First application
          discount = self.offer.apply_benefit(basket)
          self.assertTrue(discount > 0)
          self.assertEqual(3, basket.num_items_with_discount)
          self.assertEqual(3, basket.num_items_without_discount)
  
          # Second application
          discount = self.offer.apply_benefit(basket)
          self.assertTrue(discount > 0)
          self.assertEqual(6, basket.num_items_with_discount)
  