tests: fixed log init in helpers (log init must be done before any call to a log method)

src/test/helpers.py

@@ -17,6 +17,11 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+
+## logging configuration for tests ##
+from sat.core import log
+log.satConfigure()
+
 from sat.core import exceptions
 from constants import Const
 from wokkel.xmppim import RosterItem
@@ -30,10 +35,6 @@ from xml.etree import cElementTree as etree
 from collections import Counter
 import re
 
-## logging configuration for tests ##
-from sat.core import log
-log.satConfigure()
-
 
 def b2s(value):
     """Convert a bool to a unicode string used in bridge