# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 1647664642 25200
# Node ID e3c75d65d58913926b4c67fa7dc96bcdcd501868
# Parent  2bb75c65fa6c8444f3802782833e834d0cec2360
tests: demonstrate that copy info in changeset gets lost on amend

When copy information is stored in changesets, it gets lost on
amend. We didn't notice that until now because our users at Google
have the config set to `compatibility`, which means copy information
is stored in both changeset and filelogs.

Differential Revision: https://phab.mercurial-scm.org/D12386

diff -r 2bb75c65fa6c -r e3c75d65d589 tests/test-copies-in-changeset.t
--- a/tests/test-copies-in-changeset.t	Fri Mar 18 18:09:46 2022 +0100
+++ b/tests/test-copies-in-changeset.t	Fri Mar 18 21:37:22 2022 -0700
@@ -316,6 +316,15 @@
   a -> k
 #endif
 
+Existing copy information is preserved by amend
+  $ hg cp a l
+  $ hg ci -m 'copy a to l'
+  $ hg showcopies
+  a -> l
+  $ hg ci --amend -m 'new description'
+  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/*-*-amend.hg (glob)
+  $ hg showcopies
+  a -> l (no-extra !)
   $ cd ..
 
 Test rebasing a commit with copy information