Fix tests for series

opds_catalog/sopdscan.py

@@ -243,7 +243,7 @@ class opdsScanner:
 
                     if book_data.series_info:
                         ser = opdsdb.addseries(book_data.series_info['title'])
-                        ser_no = book_data.series_info['index']
+                        ser_no = book_data.series_info['index']  or '0'
                         ser_no = int(ser_no) if ser_no.isdigit() else 0
                         opdsdb.addbseries(book,ser,ser_no)
             else:

opds_catalog/tests/test_scan.py

@@ -166,5 +166,5 @@ class scanTestCase(TestCase):
         self.assertEquals(Book.objects.all().count(), 6)
         self.assertEquals(Author.objects.all().count(), 6)
         self.assertEquals(Genre.objects.all().count(), 5)
-        self.assertEquals(Series.objects.all().count(), 0)
+        self.assertEquals(Series.objects.all().count(), 1)
         self.assertEquals(Catalog.objects.all().count(), 2)