view tests/test-hghave.t @ 39260:27946fca8a05

match: document that visitchildrenset might return files

At least when using includematcher, and probably most matchers, we do not know
if a/b/f refers to a file 'f' in a/b, or a subdirectory 'f' in a/b, so most
matchers will return {'f'} for visitchildrenset('a/b'). Arguably, all matchers
could/should - for exactmatcher, we know that 'f' is a file, but there's no
reason to return 'this' for visitchildrenset('a/b') causing code to investigate
'a/b/x', for example.

Differential Revision: https://phab.mercurial-scm.org/D4364

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

Testing that hghave does not crash when checking features

  $ hghave --test-features 2>/dev/null

Testing hghave extensibility for third party tools

  $ cat > hghaveaddon.py <<EOF
  > import hghave
  > @hghave.check("custom", "custom hghave feature")
  > def has_custom():
  >     return True
  > EOF

(invocation via run-tests.py)

  $ cat > test-hghaveaddon.t <<EOF
  > #require custom
  >   $ echo foo
  >   foo
  > EOF
  $ ( \
  > testrepohgenv; \
  > $PYTHON $TESTDIR/run-tests.py $HGTEST_RUN_TESTS_PURE test-hghaveaddon.t \
  > )
  .
  # Ran 1 tests, 0 skipped, 0 failed.

(invocation via command line)

  $ unset TESTDIR
  $ hghave custom

(terminate with exit code 2 at failure of importing hghaveaddon.py)

  $ rm hghaveaddon.*
  $ cat > hghaveaddon.py <<EOF
  > importing this file should cause syntax error
  > EOF

  $ hghave custom
  failed to import hghaveaddon.py from '.': invalid syntax (hghaveaddon.py, line 1)
  [2]