tests/test-push-http

tests: don't match blank output lines as regexes in unified tests

Currently, the following unified test will pass:

  $ echo foo


A blank output line (a line containing just two spaces) will match any
output.

The patch modifies the unified test runner to ignore empty strings
strings when do regular expression matching.

#!/bin/sh

cp "$TESTDIR"/printenv.py .

hg init test
cd test
echo a > a
hg ci -Ama

cd ..
hg clone test test2
cd test2
echo a >> a
hg ci -mb

req() {
	hg serve -p $HGPORT -d --pid-file=hg.pid -E errors.log
	cat hg.pid >> $DAEMON_PIDS
	hg --cwd ../test2 push http://localhost:$HGPORT/ | sed -e "s,:$HGPORT/,:\$HGPORT/,"
	kill `cat hg.pid`
	echo % serve errors
	cat errors.log
}

cd ../test

echo % expect ssl error
req

echo % expect authorization error
echo '[web]' > .hg/hgrc
echo 'push_ssl = false' >> .hg/hgrc
req

echo % expect authorization error: must have authorized user
echo 'allow_push = unperson' >> .hg/hgrc
req

echo % expect success
echo 'allow_push = *' >> .hg/hgrc
echo '[hooks]' >> .hg/hgrc
echo 'changegroup = python ../printenv.py changegroup 0' >> .hg/hgrc
req

hg rollback
echo % expect authorization error: all users denied
echo '[web]' > .hg/hgrc
echo 'push_ssl = false' >> .hg/hgrc
echo 'deny_push = *' >> .hg/hgrc
req

echo % expect authorization error: some users denied, users must be authenticated
echo 'deny_push = unperson' >> .hg/hgrc
req