Fixed repr for FixedOffsetTimezone for offsets west of UTC (negative)

The offset displayed was always positive and somewhat confusing. The
offset displayed now is the offset that the instance was created
with.

Also added some tests for initialisation.

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/tz.py b/lib/tz.py
index f7d9e45..e353f9b 100644
--- a/lib/tz.py
+++ b/lib/tz.py
@@ -50,8 +50,9 @@ class FixedOffsetTimezone(datetime.tzinfo):
             self._name = name
 
     def __repr__(self):
+        offset_mins = self._offset.seconds // 60 + self._offset.days * 24 * 60
         return "psycopg2.tz.FixedOffsetTimezone(offset=%r, name=%r)" \
-            % (self._offset.seconds // 60, self._name)
+            % (offset_mins, self._name)
 
     def utcoffset(self, dt):
         return self._offset