tests/test-check-shbang.t

sshpeer: inline I/O into _validaterepo()

We want to move the handshake code out of the peer class so the
peer factory function can perform the handshake and instantiate
a proper class depending on the results. To make that refactor
easier to read, we first inline I/O functionality into
_validaterepo().

Test output for low-level protocol tests didn't change, thus
hopefully demonstrating that this refactor didn't change any
material behavior.

Because we no longer call _callstream(), our test extension for
monkeypatching the peer had to change its hook point.

Differential Revision: https://phab.mercurial-scm.org/D2033

#require test-repo

  $ . "$TESTDIR/helpers-testrepo.sh"
  $ cd "`dirname "$TESTDIR"`"

look for python scripts that do not use /usr/bin/env

  $ testrepohg files 'set:grep(r"^#!.*?python") and not grep(r"^#!/usr/bi{1}n/env python") - **/*.t'
  [1]

In tests, enforce $PYTHON and *not* /usr/bin/env python or similar:
  $ testrepohg files 'set:grep(r"#!.*?python") and **/*.t' \
  > -X tests/test-check-execute.t \
  > -X tests/test-check-module-imports.t \
  > -X tests/test-check-pyflakes.t \
  > -X tests/test-check-shbang.t
  [1]

The above exclusions are because they're looking for files that
contain Python but don't end in .py - please avoid adding more.

look for shell scripts that do not use /bin/sh

  $ testrepohg files 'set:grep(r"^#!.*/bi{1}n/sh") and not grep(r"^#!/bi{1}n/sh")'
  [1]