tests/test-subrepo-paths.t

tests: show skip reason instead of "irrelevant" with unified tests, too

parsehghaveoutput expects just the test output, not the merged test/output,
so for skipped unified tests e.g.:
Skipped test-convert-darcs.t: missing feature: irrelevant
was shown instead of:
Skipped test-convert-darcs.t: missing feature: darcs client

  $ hg init outer
  $ cd outer

hg debugsub with no remapping

  $ echo 'sub = http://example.net/libfoo' > .hgsub
  $ hg add .hgsub

  $ hg debugsub
  path sub
   source   http://example.net/libfoo
   revision 

hg debugsub with remapping

  $ echo '[subpaths]' > .hg/hgrc
  $ printf 'http://example.net/lib(.*) = C:\\libs\\\\1-lib\\\n' >> .hg/hgrc

  $ hg debugsub
  path sub
   source   C:\libs\foo-lib\
   revision 

test bad subpaths pattern

  $ cat > .hg/hgrc <<EOF
  > [subpaths]
  > .* = \1
  > EOF
  $ hg debugsub
  abort: bad subrepository pattern in */test-subrepo-paths.t/outer/.hg/hgrc:2: invalid group reference (glob)
  [255]