view tests/test-check-help.t @ 33614:41081364addb stable

tests: clarify that duplicate flag processors is not an error

The flag processors test for duplicate processors for a single flag
was misleading because the file from the previous test case caused it
to fail (making the "echo 'this should fail' > file" part
irrelevant). Let's remove the leftover from the previous test case to
make it clear that duplicate flag processors results only in a
warning.

Note that duplicate flag processors would have resulted in a failure
(not just a warning) until ea1c2eb7abd3 (extensions: catch uisetup and
extsetup failures and don't let them break hg, 2017-06-06). I remember
expressing my concern about ending up with half-loaded extensions. It
would be pretty unfortunate to have double-encoded revlog content
enter a repo, so maybe we should reconsider?

Differential Revision: https://phab.mercurial-scm.org/D201

#require test-repo

  $ . "$TESTDIR/helpers-testrepo.sh"

  $ cat <<'EOF' > scanhelptopics.py
  > from __future__ import absolute_import, print_function
  > import re
  > import sys
  > if sys.platform == "win32":
  >     import os, msvcrt
  >     msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
  > topics = set()
  > topicre = re.compile(r':hg:`help ([a-z0-9\-.]+)`')
  > for fname in sys.argv:
  >     with open(fname) as f:
  >         topics.update(m.group(1) for m in topicre.finditer(f.read()))
  > for s in sorted(topics):
  >     print(s)
  > EOF

  $ cd "$TESTDIR"/..

Check if ":hg:`help TOPIC`" is valid:
(use "xargs -n1 -t" to see which help commands are executed)

  $ testrepohg files 'glob:{hgdemandimport,hgext,mercurial}/**/*.py' \
  > | sed 's|\\|/|g' \
  > | xargs $PYTHON "$TESTTMP/scanhelptopics.py" \
  > | xargs -n1 hg help > /dev/null