def test_applies_correctly_to_multi_item_basket_which_exceeds_condition_but_matches_boundary( self): add_products(self.basket, [(D('5.00'), 3)]) result = self.benefit.apply(self.basket, self.condition, self.offer) self.assertEqual(D('3.00'), result.discount) self.assertEqual(2, self.basket.num_items_with_discount) self.assertEqual(1, self.basket.num_items_without_discount)
def test_applies_correctly_to_multi_item_basket_which_matches_condition_but_with_lower_prices_than_discount( self): add_products(self.basket, [(D('2.00'), 6)]) result = self.benefit.apply(self.basket, self.condition, self.offer) self.assertEqual(D('2.00'), result.discount) self.assertEqual(5, self.basket.num_items_with_discount) self.assertEqual(1, self.basket.num_items_without_discount)
def test_applies_correctly_to_basket_which_exceeds_condition_but_with_smaller_prices_than_discount( self): add_products(self.basket, [(D('2.00'), 2), (D('1.00'), 2)]) result = self.benefit.apply(self.basket, self.condition, self.offer) self.assertEqual(D('1.00'), result.discount) self.assertEqual(2, self.basket.num_items_with_discount) self.assertEqual(2, self.basket.num_items_without_discount)
def test_applies_correctly_to_single_item_basket_which_matches_condition( self): add_products(self.basket, [(D('10.00'), 1)]) result = self.benefit.apply(self.basket, self.condition, self.offer) self.assertEqual(D('3.00'), result.discount) self.assertEqual(1, self.basket.num_items_with_discount) self.assertEqual(0, self.basket.num_items_without_discount)
def test_applies_correctly_to_basket_which_exceeds_condition(self): add_products(self.basket, [(D('12.00'), 2), (D('20.00'), 2)]) result = self.benefit.apply(self.basket, self.condition, self.offer) self.assertEqual(1 * D('12.00') * D('0.2'), result.discount) # Should only consume the condition products self.assertEqual(2, self.basket.num_items_with_discount) self.assertEqual(2, self.basket.num_items_without_discount)
def test_applies_basket_exceeding_condition_smaller_prices_than_discount_higher_prices_first( self): add_products(self.basket, [(D('2.00'), 2), (D('4.00'), 2)]) result = self.benefit.apply(self.basket, self.condition, self.offer) self.assertEqual(D('3.00'), result.discount) self.assertEqual(4, self.basket.num_items_with_discount) self.assertEqual(0, self.basket.num_items_without_discount)
def test_consumes_correct_number_of_products_for_4_product_basket(self): basket = factories.create_basket(empty=True) add_products(basket, [(D('1'), 2), (D('1'), 2)]) self.assertTrue(self.offer.is_condition_satisfied(basket)) discount = self.offer.apply_benefit(basket) self.assertTrue(discount.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_applies_correctly_to_basket_which_matches_condition_with_multiple_lines_and_lower_total_value( self): # Use a basket with 2 lines add_products(self.basket, [(D('1.00'), 1), (D('1.50'), 1)]) result = self.benefit.apply(self.basket, self.condition, self.offer) self.assertTrue(result.is_successful) self.assertFalse(result.is_final) self.assertEqual(D('2.50'), result.discount) self.assertEqual(2, self.basket.num_items_with_discount) self.assertEqual(0, self.basket.num_items_without_discount)
def test_rounding_error_for_multiple_products(self): add_products(self.basket, [(D('7.00'), 1), (D('7.00'), 1), (D('7.00'), 1)]) result = self.benefit.apply(self.basket, self.condition, self.offer) self.assertEqual(D('1.00'), result.discount) # Make sure discount together is the same as final discount # Rounding error would return 0.99 instead 1.00 cumulative_discount = sum(line.discount_value for line in self.basket.all_lines()) self.assertEqual(result.discount, cumulative_discount) self.assertEqual(3, self.basket.num_items_with_discount) self.assertEqual(0, self.basket.num_items_without_discount)
def test_consumes_correct_number_of_products_for_6_product_basket(self): basket = factories.create_basket(empty=True) add_products(basket, [(D('1'), 3), (D('1'), 3)]) # First application discount = self.offer.apply_benefit(basket) self.assertTrue(discount.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.discount > 0) self.assertEqual(6, basket.num_items_with_discount)
def test_applies_correctly_to_basket_which_matches_condition_with_multiple_lines( self): # Use a basket with 2 lines add_products(self.basket, [(D('12.00'), 1), (D('12.00'), 1)]) result = self.benefit.apply(self.basket, self.condition, self.offer) self.assertTrue(result.is_successful) self.assertFalse(result.is_final) self.assertEqual(D('3.00'), result.discount) self.assertEqual(2, self.basket.num_items_with_discount) self.assertEqual(0, self.basket.num_items_without_discount) # Check the discount is applied equally to each line for line in self.basket.all_lines(): self.assertEqual(D('1.50'), line.discount_value)
def test_applies_correctly_to_basket_which_exceeds_condition(self): add_products(self.basket, [(D('12.00'), 2), (D('10.00'), 2)]) result = self.benefit.apply(self.basket, self.condition, self.offer) self.assertEqual(D('3.00'), result.discount) self.assertEqual(4, self.basket.num_items_with_discount) self.assertEqual(0, self.basket.num_items_without_discount)