view tests/test-issue2137.t @ 15718:c604a3d1969d

icasefs: disuse length check against un-normcase()-ed filenames

this patch disuses length check against un-normcase()-ed filenames
gotten by "os.listdir()", because there is no assurance that
filesystem stores filenames normalized except in letter case, even
though some case insensitive filesystems (in some environment, for
some language setting) store them in such manner.

http://mercurial.selenic.com/bts/issue2137

Setup:

create a little extension that has 3 side-effects:
1) ensure changelog data is not inlined
2) make revlog to use lazyparser
3) test that repo.lookup() works
1 and 2 are preconditions for the bug; 3 is the bug.

  $ cat > commitwrapper.py <<EOF
  > from mercurial import extensions, node, revlog
  > 
  > def reposetup(ui, repo):
  >     def wrapcommit(orig, *args, **kwargs):
  >         result = orig(*args, **kwargs)
  >         tip1 = node.short(repo.changelog.tip())
  >         tip2 = node.short(repo.lookup(tip1))
  >         assert tip1 == tip2
  >         ui.write('new tip: %s\n' % tip1)
  >         return result
  > 
  >     extensions.wrapfunction(repo, 'commit', wrapcommit)
  > 
  > def extsetup(ui):
  >     revlog._maxinline = 8             # split out 00changelog.d early
  >     revlog._prereadsize = 8           # use revlog.lazyparser
  > EOF

  $ cat >> $HGRCPATH <<EOF
  > [extensions]
  > commitwrapper = `pwd`/commitwrapper.py
  > EOF

  $ hg init repo1
  $ cd repo1
  $ echo a > a
  $ hg commit -A -m'add a with a long commit message to make the changelog a bit bigger'
  adding a
  new tip: 553596fad57b

Test that new changesets are visible to repo.lookup():

  $ echo a >> a
  $ hg commit -m'one more commit to demonstrate the bug'
  new tip: 799ae3599e0e

  $ hg tip
  changeset:   1:799ae3599e0e
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     one more commit to demonstrate the bug