[ci]: Update make_test_base to check length of extension list

dmpgpro · dmpgpro · commit f0ecc38c755c · 2017-09-18T21:01:17.000+03:00
diff --git a/.ci/make_test_base b/.ci/make_test_base
@@ -19,7 +19,10 @@ def prepare_extlist(value):
     if "pg_pathman" in l:
         # remove duplicates and reorder extension list to move pg_pathman to tail
         nl = sorted(list(set(l)), cmp = lambda a,b: 1 if a=="pg_pathman" else -1)
-        new_value = "'{}'".format(",".join(nl))
+        if len(nl) > 0:
+            new_value = "'{}'".format(",".join(nl))
+        else:
+            new_value = "''"
         return new_value
     else:
         return value
