Normalize handling of temporary file and directory creation.

mayan/apps/sources/tests/test_classes.py

@@ -2,18 +2,18 @@ from __future__ import unicode_literals
 
 import os
 import shutil
-import tempfile
 
 from django.test import TestCase
 
 from documents.tests import TEST_NON_ASCII_DOCUMENT_PATH
+from common.utils import mkdtemp
 
 from ..classes import StagingFile
 
 
 class StagingFileTestCase(TestCase):
     def test_unicode_staging_file(self):
-        temporary_directory = tempfile.mkdtemp()
+        temporary_directory = mkdtemp()
         shutil.copy(TEST_NON_ASCII_DOCUMENT_PATH, temporary_directory)
 
         filename = os.path.basename(TEST_NON_ASCII_DOCUMENT_PATH)