tests/test-unbundlehash.t

largefiles: adapt verify to batched remote statlfile (issue3780)

9e1616307c4c introduced batching of statlfile, but not all codepaths got
converted.

'hg verify' with a remotestore could thus crash with
  TypeError: 'builtin_function_or_method' object is not iterable

Also, the 'hash' variable was used without assigning to it. Don't use variable
names that collide with Python built-in functions. Instead we use 'expecthash'
as in localstore.

The tests for this issue covers an untested area. The tests happens to also
reveal incorrect attempts at getting non-existing largefiles, bad server side
handling of that, and corruption issues - all to be fixed later.

  $ "$TESTDIR/hghave" killdaemons || exit 80

Test wire protocol unbundle with hashed heads (capability: unbundlehash)

Create a remote repository.

  $ hg init remote
  $ hg serve -R remote --config web.push_ssl=False --config web.allow_push=* -p $HGPORT -d --pid-file=hg1.pid -E error.log -A access.log
  $ cat hg1.pid >> $DAEMON_PIDS

Clone the repository and push a change.

  $ hg clone http://localhost:$HGPORT/ local
  no changes found
  updating to branch default
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ touch local/README
  $ hg ci -R local -A -m hoge
  adding README
  $ hg push -R local
  pushing to http://localhost:$HGPORT/
  searching for changes
  remote: adding changesets
  remote: adding manifests
  remote: adding file changes
  remote: added 1 changesets with 1 changes to 1 files

Ensure hashed heads format is used.
The hash here is always the same since the remote repository only has the null head.

  $ cat access.log | grep unbundle
  * - - [*] "POST /?cmd=unbundle HTTP/1.1" 200 - x-hgarg-1:heads=686173686564+6768033e216468247bd031a0a2d9876d79818f8f (glob)

Explicitly kill daemons to let the test exit on Windows

  $ "$TESTDIR/killdaemons.py" $DAEMON_PIDS