[damned-lies] Setup temporary media dir for vertimus tests

[Claude Paroz <claudep src gnome org>]

commit b4678a96d3aaf4853eac4e8ac53b57b3a0123728
Author: Claude Paroz <claude 2xlibre net>
Date:   Mon Nov 14 21:57:14 2016 +0100

    Setup temporary media dir for vertimus tests

 vertimus/tests/tests.py |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/vertimus/tests/tests.py b/vertimus/tests/tests.py
index c329e63..01d089a 100644
--- a/vertimus/tests/tests.py
+++ b/vertimus/tests/tests.py
@@ -18,6 +18,7 @@
 # along with this program; if not, see <http://www.gnu.org/licenses/>.
 
 import os
+import tempfile
 from xml.dom.minidom import parseString
 
 from django.conf import settings
@@ -26,6 +27,7 @@ from django.core.files.uploadedfile import SimpleUploadedFile
 from django.core import mail
 from django.core.urlresolvers import reverse
 from django.http import QueryDict
+from django.test.utils import override_settings
 from django.utils.datastructures import MultiValueDict
 
 from teams.tests import TeamsAndRolesTests
@@ -34,6 +36,10 @@ from stats.tests import patch_shell_command, test_scratchdir
 from vertimus.models import *
 from vertimus.forms import ActionForm
 
+MEDIA_ROOT = tempfile.mkdtemp()
+
+
+@override_settings(MEDIA_ROOT=MEDIA_ROOT)
 class VertimusTest(TeamsAndRolesTests):
 
     def setUp(self):