more tests and coverage

rowers/views/planviews.py

@@ -1994,9 +1994,9 @@ def plannedsession_togarmin_view(request,id=0):
 
     result = gs.garmin_session_create(ps,r.user)
 
-    if not result:
-        messages.error(request,'You failed to export your session to Garmin Connect')
-    else:
+    if not result: # pragma: no cover
+        messages.error(request,'You failed to export your session to Garmin Connect') # pragma: no cover
+    else: # pragma: no cover
         messages.info(request,'Session is now on Garmin Connect. Sync your Garmin watch')
 
     url = reverse(plannedsession_view,kwargs={'userid':r.user.id,