Added unit test to exercise load api

- uses validated example of GTFS `sample-feed.zip`

gtfsdb/config.py

@@ -5,6 +5,7 @@
 
 
 config = ConfigParser()
-config.read(os.path.join(resource_filename('gtfsdb', 'configs'), 'app.ini'))
+ini_file = os.path.join(resource_filename('gtfsdb', 'configs'), 'app.ini')
+config.read(ini_file)
 if config.has_section('loggers'):
     logging.config.fileConfig(ini_file, disable_existing_loggers=False)

gtfsdb/scripts/load.py

@@ -7,8 +7,15 @@
 log = logging.getLogger(__name__)
 
 
+def load(filename, database_url='sqlite://', schema=None, is_geospatial=False):
+    '''Basic API to load a GTFS zip file'''
+    db = Database(database_url, schema, is_geospatial)
+    db.create()
+    gtfs = GTFS(filename)
+    gtfs.load(db)
+
+
 def main():
-    # process command line args
     parser = argparse.ArgumentParser(prog='gtfsdb-load',
         formatter_class=argparse.ArgumentDefaultsHelpFormatter)
     parser.add_argument('file', help='URL or local path to GTFS zip FILE')
@@ -19,13 +26,7 @@ def main():
     parser.add_argument('--schema', default=None, help='Database SCHEMA name')
     args = parser.parse_args()
 
-    # create database
-    db = Database(args.database_url, args.schema, args.is_geospatial)
-    db.create()
-
-    # load GTFS into database
-    gtfs = GTFS(args.file)
-    gtfs.load(db)
+    load(args.file, args.database_url, args.schema, args.is_geospatial)
 
 
 if __name__ == '__main__':

gtfsdb/tests/__init__.py

@@ -1,2 +0,0 @@
-# Need some useful tests here
-from gtfsdb import *

gtfsdb/tests/test_load.py

@@ -0,0 +1,17 @@
+import os
+from pkg_resources import resource_filename
+import sys
+if sys.version_info[:2] == (2, 6):
+    import unittest2 as unittest
+else:
+    import unittest
+
+from gtfsdb.scripts.load import load
+
+
+class TestLoad(unittest.TestCase):
+
+    def test_load(self):
+        path = resource_filename('gtfsdb', 'tests')
+        filename = 'file:///{0}'.format(os.path.join(path, 'sample-feed.zip'))
+        load(filename)