old_contents: from __future__ import unicode_literals
  from future.builtins import str
  from future.utils import native
  
  import os
  from shutil import rmtree
  from uuid import uuid4
  
  from mezzanine.conf import settings
  from mezzanine.core.templatetags.mezzanine_tags import thumbnail
  from mezzanine.galleries.models import Gallery, GALLERIES_UPLOAD_DIR
  from mezzanine.utils.tests import TestCase, copy_test_to_media
  
  
  class GalleriesTests(TestCase):
  
      def test_gallery_import(self):
          """
          Test that a gallery creates images when given a zip file to
          import, and that descriptions are created.
          """
          zip_name = "gallery.zip"
          copy_test_to_media("mezzanine.core", zip_name)
          title = native(str(uuid4()))  # i.e. Py3 str / Py2 unicode
          gallery = Gallery.objects.create(title=title, zip_import=zip_name)
          images = list(gallery.images.all())
          self.assertTrue(images)
          self.assertTrue(all([image.description for image in images]))
          # Clean up.
          rmtree(os.path.join(settings.MEDIA_ROOT,
                              GALLERIES_UPLOAD_DIR, title))
  
      def test_thumbnail_generation(self):
          """
          Test that a thumbnail is created and resized.
          """
          try:
              from PIL import Image
          except ImportError:
              return
          image_name = "image.jpg"
          size = (24, 24)
          copy_test_to_media("mezzanine.core", image_name)
          thumb_name = os.path.join(settings.THUMBNAILS_DIR_NAME,
                                    image_name.replace(".", "-%sx%s." % size))
          thumb_path = os.path.join(settings.MEDIA_ROOT, thumb_name)
          thumb_image = thumbnail(image_name, *size)
          self.assertEqual(os.path.normpath(thumb_image.lstrip("/")), thumb_name)
          self.assertNotEqual(os.path.getsize(thumb_path), 0)
          thumb = Image.open(thumb_path)
          self.assertEqual(thumb.size, size)
          # Clean up.
          del thumb
          os.remove(os.path.join(settings.MEDIA_ROOT, image_name))
          os.remove(os.path.join(thumb_path))
          rmtree(os.path.join(os.path.dirname(thumb_path)))
  
new_contents: from __future__ import unicode_literals
  from future.builtins import str
  from future.utils import native
  
  import os
  from shutil import rmtree
  from uuid import uuid4
  
  from mezzanine.conf import settings
  from mezzanine.core.templatetags.mezzanine_tags import thumbnail
  from mezzanine.galleries.models import Gallery, GALLERIES_UPLOAD_DIR
  from mezzanine.utils.tests import TestCase, copy_test_to_media
  
  
  class GalleriesTests(TestCase):
  
      def test_gallery_import(self):
          """
          Test that a gallery creates images when given a zip file to
          import, and that descriptions are created.
          """
          zip_name = "gallery.zip"
          copy_test_to_media("mezzanine.core", zip_name)
          title = native(str(uuid4()))  # i.e. Py3 str / Py2 unicode
          gallery = Gallery.objects.create(title=title, zip_import=zip_name)
          images = list(gallery.images.all())
          self.assertTrue(images)
          self.assertTrue(all([image.description for image in images]))
          # Clean up.
          rmtree(os.path.join(settings.MEDIA_ROOT,
                              GALLERIES_UPLOAD_DIR, title))
  
      def test_thumbnail_generation(self):
          """
          Test that a thumbnail is created and resized.
          """
          try:
              from PIL import Image
          except ImportError:
              return
          image_name = "image.jpg"
          size = (24, 24)
          copy_test_to_media("mezzanine.core", image_name)
          thumb_name = os.path.join(settings.THUMBNAILS_DIR_NAME,
                                    "thumbs-%s" % image_name,
                                    image_name.replace(".", "-%sx%s." % size))
          thumb_path = os.path.join(settings.MEDIA_ROOT, thumb_name)
          thumb_image = thumbnail(image_name, *size)
          self.assertEqual(os.path.normpath(thumb_image.lstrip("/")), thumb_name)
          self.assertNotEqual(os.path.getsize(thumb_path), 0)
          thumb = Image.open(thumb_path)
          self.assertEqual(thumb.size, size)
          # Clean up.
          del thumb
          os.remove(os.path.join(settings.MEDIA_ROOT, image_name))
          os.remove(os.path.join(thumb_path))
          rmtree(os.path.join(os.path.dirname(thumb_path)))
  
subject: Update thumbnail test path.