ERP5 related test locations can be calculated by eggs:extra-paths, instead of...

ERP5 related test locations can be calculated by eggs:extra-paths, instead of globbing from all parts.

stack/erp5.cfg

@@ -230,12 +230,13 @@ initialization =
     [bt5_path, os.path.join(bt5_path, '*')]
     for bt5_path in (os.path.join(parts_directory, x, 'bt5')
                      for x in repository_id_list)), []))
+  extra_path_list = '''${:extra-paths}'''.split()
   sys.path[:0] = sum((
-    glob.glob(os.path.join(parts_directory, x, 'tests'))
-    for x in repository_id_list), [])
+    glob.glob(os.path.join(x, 'tests'))
+    for x in extra_path_list), [])
   sys.path[:0] = sum((
-    glob.glob(os.path.join(parts_directory, x, 'product', '*', 'tests'))
-    for x in repository_id_list), [])
+    glob.glob(os.path.join(x, 'Products', '*', 'tests'))
+    for x in extra_path_list), [])
 
 [test_suite_runner]
 # XXX: Workaround for fact ERP5Type is not an distribution and does not