view tests/test-hghave.t @ 28688:3e0d03c3c594

revset: add test that should fail if '_aliasarg' tag is removed

I'm going to refactor the alias processing functions. We need '_aliasarg' tag
to limit the scope of the alias expansion, but it wasn't covered by the test.
This patch adds the test that should fail if '_aliasarg' were 'symbol'.

This is the first half of the second part of the "template alias" series. The
whole series will consist of the following parts:

 1. make parsed template tree to be compatible with parser functions
    (1d461ee26e1b and 73d01cba5810)
 2. refactor alias processing to be less dependent on revset module
    (1/2 in this series)
 3. extract reusable component to parser module
 4. clean up it
 5. extend it to support template syntax
 6. add debugging/testing functions of template aliases
 7. add alias expansion routine to templater

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
  $ run-tests.py $HGTEST_RUN_TESTS_PURE test-hghaveaddon.t
  .
  # Ran 1 tests, 0 skipped, 0 warned, 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]