tests: add low-level SSH protocol tests
We don't really have good low-level tests for the behavior of the SSH
wire protocol. This commit attempts to establish some.
The added tests consist of a mixture of starting a server
with `hg serve --stdio` and sending bytes to it and using
`hg debugpeer` to go through the official client code. Having
insight into what raw bytes are exchanged as well as what the peer
does is useful.
We also introduce a test extension for modifying the behavior of
the SSH server and peer. For example, we change the server to
not recognize the "hello" command, simulating behavior of <0.9.1
servers.
These tests are generally useful to have. But the impetus for creating
them now is they will be needed for verifying behavior of old clients
and servers when a new SSH protocol is introduced.
Differential Revision: https://phab.mercurial-scm.org/D2026
# no-check-commit because of serve_forever()
from __future__ import absolute_import, print_function
import os
from mercurial import (
ui as uimod,
)
hgrc = os.environ['HGRCPATH']
f = open(hgrc)
basehgrc = f.read()
f.close()
print(' hgrc settings command line options final result ')
print(' quiet verbo debug quiet verbo debug quiet verbo debug')
for i in xrange(64):
hgrc_quiet = bool(i & 1<<0)
hgrc_verbose = bool(i & 1<<1)
hgrc_debug = bool(i & 1<<2)
cmd_quiet = bool(i & 1<<3)
cmd_verbose = bool(i & 1<<4)
cmd_debug = bool(i & 1<<5)
f = open(hgrc, 'w')
f.write(basehgrc)
f.write('\n[ui]\n')
if hgrc_quiet:
f.write('quiet = True\n')
if hgrc_verbose:
f.write('verbose = True\n')
if hgrc_debug:
f.write('debug = True\n')
f.close()
u = uimod.ui.load()
if cmd_quiet or cmd_debug or cmd_verbose:
u.setconfig('ui', 'quiet', str(bool(cmd_quiet)))
u.setconfig('ui', 'verbose', str(bool(cmd_verbose)))
u.setconfig('ui', 'debug', str(bool(cmd_debug)))
check = ''
if u.debugflag:
if not u.verbose or u.quiet:
check = ' *'
elif u.verbose and u.quiet:
check = ' +'
print(('%2d %5s %5s %5s %5s %5s %5s -> %5s %5s %5s%s'
% (i, hgrc_quiet, hgrc_verbose, hgrc_debug,
cmd_quiet, cmd_verbose, cmd_debug,
u.quiet, u.verbose, u.debugflag, check)))