Fix warning from bytestrings being slugified

oscar/core/utils.py

@@ -3,4 +3,8 @@ from django.template import defaultfilters
 
 
 def slugify(value):
-    return defaultfilters.slugify(unidecode(value))
+    """
+    Slugify a string (even if it contains non-ASCII chars)
+    """
+    return defaultfilters.slugify(
+        unidecode(unicode(value)))

tests/functional/catalogue/catalogue_tests.py

@@ -39,7 +39,7 @@ class TestProductListView(WebTestCase):
 
     def test_shows_pagination_navigation_for_multiple_pages(self):
         per_page = ProductListView.paginate_by
-        title = "Product #%d"
+        title = u"Product #%d"
         for idx in range(0, int(1.5 * per_page)):
             create_product(title=title % idx)
 

tests/unit/catalogue_tests.py

@@ -1,4 +1,5 @@
 from django.test import TestCase
+from django.core.exceptions import ValidationError
 
 from oscar.apps.catalogue.models import (Product, ProductClass,
                                          ProductAttribute,

tests/unit/offer/custom_range_tests.py

@@ -20,9 +20,9 @@ class TestACustomRange(TestCase):
         self.rng = custom.create_range(CustomRange)
 
     def test_correctly_includes_match(self):
-        test_product = create_product(title="A tale")
+        test_product = create_product(title=u"A tale")
         self.assertTrue(self.rng.contains_product(test_product))
 
     def test_correctly_excludes_nonmatch(self):
-        test_product = create_product(title="B tale")
+        test_product = create_product(title=u"B tale")
         self.assertFalse(self.rng.contains_product(test_product))