unmodified-header-limit.test

# A twelve-line introduction exceeds the default limit, but can be accepted
# with a custom limit. The limit is inclusive and appears in diagnostics.

$$$ mkdir -p _tmp/header-limit/old _tmp/header-limit/new
$$$ awk 'BEGIN { for (i = 1; i <= 12; i++) print "Header line " i }' > _tmp/header-limit/header
$$$ cat _tmp/header-limit/header > _tmp/header-limit/old/CHANGELOG.md
$$$ printf 'Old release\n' >> _tmp/header-limit/old/CHANGELOG.md
$$$ cat _tmp/header-limit/header > _tmp/header-limit/new/CHANGELOG.md
$$$ printf 'New release\nOld release\n' >> _tmp/header-limit/new/CHANGELOG.md

$$$ cabal -v0 new-run guess-changelog -- _tmp/header-limit/old _tmp/header-limit/new
>>>2
CHANGELOG.md has more than 10 unmodified lines at top: 12
>>>= 0

$$$ cabal -v0 new-run guess-changelog -- --max-unmodified-lines 12 _tmp/header-limit/old _tmp/header-limit/new
>>>
New release
>>>= 0

$$$ cabal -v0 new-run guess-changelog -- -m 11 _tmp/header-limit/old _tmp/header-limit/new
>>>2
CHANGELOG.md has more than 11 unmodified lines at top: 12
>>>= 0