.

wcfs/testprog/wcfs_commit_tree_deltas.py

+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# Copyright (C) 2020  Nexedi SA and Contributors.
+#                     Kirill Smelkov <kirr@nexedi.com>
+"""Program wcfs_commit_tree_deltas commits subset of all possible tree changes
+in between two specified key->value sets.    XXX -> zodb_gen_tree_deltas ?
+
+It is used as helper for ΔBTree tests.
+
+Usage: <prog> <n> <zurl> <kv1> <kv2>
+
+It generates ZODB commits with <tree1> -> <tree2> changes for subset of all
+possible tree topologies tree1 and tree2 that can represent kv1 and kv2
+correspondingly.
+
+For every made commit it prints to stdout:
+
+# <tree1> -> <tree2>
+tid <tid>
+tree <oid>
+δ
+<LF>
+
+"""
+