Abstract creator test classes to share common logic between creators

.travis.yml

@@ -17,4 +17,4 @@ jobs:
       script: pylint --disable=C,R osm2gtfs
 
     - stage: non regression test
-      script: python -m unittest discover
+      script: python -m unittest discover -p 'tests_*.py'

osm2gtfs/core/osm_connector.py

@@ -592,6 +592,7 @@ def _query_routes(self):
 
             /* Return tags for elements and roles for relation members. */
             );out body;""" % (self.tags, self.bbox)
+        print(query_str)
         return api.query(query_str)
 
     def _query_stops(self):
@@ -622,6 +623,7 @@ def _query_stops(self):
             rel(bn:"platform")["public_transport"="stop_area"];
             out body;
             );""" % (self.tags, self.bbox)
+        print(query_str)
         return api.query(query_str)
 
     def _generate_shape(self, route_variant, query_result_set):

osm2gtfs/tests/README.md

@@ -3,7 +3,7 @@ osm2gtfs tests
 
 To run all the tests (from the root `osm2gtfs` folder) :
 
-    $ python -m unittest discover -v -t .
+    python -m unittest discover -v -p 'tests_*.py' .
 
 ## Core