tests/test-known.t

revset: don't error out if tokens parse as existing symbols

It makes perfect sense for tokens to parse as existing revset symbols
(revset functions), and doesn't break anything, since parsing symbols
as functions works correctly in the presence of parens. For example,
if "only" is a bookmark, this used to error out,

   hg log -r "only(only, @)"

which shouldn't, as the inner "only" is unambiguously not a function.

So we just remove the symbolset function and replace its calling site
with the stringset function.

For the tests, we confirm that "date" and "only" are both parsed as
revision names both inside revset expressions (e.g. an expression
containing ::) and inside old-style revision expressions (e.g. those
containing the name of the revision alone).

#require killdaemons

= Test the known() protocol function =

Create a test repository:

  $ hg init repo
  $ cd repo
  $ touch a ; hg add a ; hg ci -ma
  $ touch b ; hg add b ; hg ci -mb
  $ touch c ; hg add c ; hg ci -mc
  $ hg log --template '{node}\n'
  991a3460af53952d10ec8a295d3d2cc2e5fa9690
  0e067c57feba1a5694ca4844f05588bb1bf82342
  3903775176ed42b1458a6281db4a0ccf4d9f287a
  $ cd ..

Test locally:

  $ hg debugknown repo 991a3460af53952d10ec8a295d3d2cc2e5fa9690 0e067c57feba1a5694ca4844f05588bb1bf82342 3903775176ed42b1458a6281db4a0ccf4d9f287a
  111
  $ hg debugknown repo 000a3460af53952d10ec8a295d3d2cc2e5fa9690 0e067c57feba1a5694ca4844f05588bb1bf82342 0003775176ed42b1458a6281db4a0ccf4d9f287a
  010
  $ hg debugknown repo
  

Test via HTTP:

  $ hg serve -R repo -p $HGPORT -d --pid-file=hg.pid -E error.log -A access.log
  $ cat hg.pid >> $DAEMON_PIDS
  $ hg debugknown http://localhost:$HGPORT/ 991a3460af53952d10ec8a295d3d2cc2e5fa9690 0e067c57feba1a5694ca4844f05588bb1bf82342 3903775176ed42b1458a6281db4a0ccf4d9f287a
  111
  $ hg debugknown http://localhost:$HGPORT/ 000a3460af53952d10ec8a295d3d2cc2e5fa9690 0e067c57feba1a5694ca4844f05588bb1bf82342 0003775176ed42b1458a6281db4a0ccf4d9f287a
  010
  $ hg debugknown http://localhost:$HGPORT/
  
  $ cat error.log
  $ "$TESTDIR/killdaemons.py" $DAEMON_PIDS