MEDIA_ROOT should modified only when running tests

smash/web/tests/__init__.py

 import logging
 import os
+import sys
+
 from django.conf import settings
 from django.contrib.auth.models import User
 from django.test import Client
 from django.test import TestCase
-from web.models import Worker
-from web.decorators import PermissionDecorator
 
+from web.decorators import PermissionDecorator
+from web.models import Worker
 from .functions import create_worker, create_user, add_permissions_to_worker
 
-settings.MEDIA_ROOT = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'data')
+# if manage.py test was called, use test settings
+if 'test' in sys.argv:
+    try:
+        settings.MEDIA_ROOT = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'data')
+    except ImportError:
+        pass
 
 logger = logging.getLogger(__name__)
 
@@ -19,7 +26,7 @@ class LoggedInTestCase(TestCase):
         self.password = 'abcd1234'
         #superuser
         self.super_worker = create_worker(user=User.objects.create_superuser(username='super', password=self.password, email='a@mail.com'))
-        #admin 
+        #admin
         self.admin_worker = Worker.get_by_user(create_user(username='admin', password=self.password))
         add_permissions_to_worker(self.admin_worker, PermissionDecorator.codenames)
         #staff
@@ -34,15 +41,15 @@ class LoggedInTestCase(TestCase):
 
     def login_as_staff(self):
         self.client.logout()
-        self.client.login(username='staff', password=self.password) 
+        self.client.login(username='staff', password=self.password)
 
     def login_as_admin(self):
         self.client.logout()
-        self.client.login(username='admin', password=self.password) 
+        self.client.login(username='admin', password=self.password)
 
     def login_as_super(self):
         self.client.logout()
-        self.client.login(username='super', password=self.password) 
+        self.client.login(username='super', password=self.password)
 
 
 class LoggedInWithWorkerTestCase(LoggedInTestCase):