prev: add a test case which shows traceback when doing prev on obsolete cset
This patch adds a test which shows how `hg prev` is borken when called from a
obsolete changeset and there is an active topic. The next patch will fix that.
#!/bin/bash
set -euox pipefail
unset GREP_OPTIONS
NOTOPIC="--config experimental.topic-mode=ignore"
compatbranches=`hg branches --quiet | grep 'mercurial-' | grep -v ':' | sort -n --reverse`
prev='stable'
for branch in $compatbranches; do
hg up $branch
hg merge $prev
hg commit -m "test-compat: merge $prev into $branch"
prev=$branch
done