comparison tests/run-tests.py @ 28582:cdbc25306696

run-tests: add --with-python3 to define a Python 3 interpreter

Currently, very few parts of Mercurial run under Python 3, notably the
test harness.

We want to write tests that run Python 3. For example, we want to
extend test-check-py3-compat.t to parse and load Python files.
However, we have a problem: finding appropriate files requires
running `hg files` and this requires Python 2 until `hg` works
with Python 3.

As a temporary workaround, we add --with-python3 to the test harness
to allow us to define the path to a Python 3 interpreter. This
interpreter is made available to the test environment via $PYTHON3 so
tests can run things with Python 3 while the test harness and `hg`
invocations continue to run from Python 2. To round out the feature,
a "py3exe" hghave check has been added.

28581:3c8f0a605504

                      help="install and use chg wrapper in place of hg")
    parser.add_option("--with-chg", metavar="CHG",
                      help="use specified chg wrapper in place of hg")
    parser.add_option("-3", "--py3k-warnings", action="store_true",
        help="enable Py3k warnings on Python 2.6+")
    parser.add_option('--extra-config-opt', action="append",
                      help='set the given config opt in the test hgrc')
    parser.add_option('--random', action="store_true",
                      help='run tests in random order')
    parser.add_option('--profile-runner', action='store_true',

        options.slowtimeout = 0
    if options.py3k_warnings:
        if PYTHON3:
            parser.error(
                '--py3k-warnings can only be used on Python 2.6 and 2.7')
    if options.blacklist:
        options.blacklist = parselistfiles(options.blacklist, 'blacklist')
    if options.whitelist:
        options.whitelisted = parselistfiles(options.whitelist, 'whitelist')
    else:

            self._hgcommand = os.path.basename(self.options.with_chg)

        osenvironb[b"BINDIR"] = self._bindir
        osenvironb[b"PYTHON"] = PYTHON

        fileb = _bytespath(__file__)
        runtestdir = os.path.abspath(os.path.dirname(fileb))
        osenvironb[b'RUNTESTDIR'] = runtestdir
        if PYTHON3:
            sepb = _bytespath(os.pathsep)

28582:cdbc25306696

                      help="install and use chg wrapper in place of hg")
    parser.add_option("--with-chg", metavar="CHG",
                      help="use specified chg wrapper in place of hg")
    parser.add_option("-3", "--py3k-warnings", action="store_true",
        help="enable Py3k warnings on Python 2.6+")
    # This option should be deleted once test-check-py3-compat.t and other
    # Python 3 tests run with Python 3.
    parser.add_option("--with-python3", metavar="PYTHON3",
                      help="Python 3 interpreter (if running under Python 2)"
                           " (TEMPORARY)")
    parser.add_option('--extra-config-opt', action="append",
                      help='set the given config opt in the test hgrc')
    parser.add_option('--random', action="store_true",
                      help='run tests in random order')
    parser.add_option('--profile-runner', action='store_true',

        options.slowtimeout = 0
    if options.py3k_warnings:
        if PYTHON3:
            parser.error(
                '--py3k-warnings can only be used on Python 2.6 and 2.7')
    if options.with_python3:
        if PYTHON3:
            parser.error('--with-python3 cannot be used when executing with '
                         'Python 3')

        # Verify Python3 executable is acceptable.
        proc = subprocess.Popen([options.with_python3, b'--version'],
                                stdout=subprocess.PIPE,
                                stderr=subprocess.STDOUT)
        out, _err = proc.communicate()
        ret = proc.wait()
        if ret != 0:
            parser.error('could not determine version of python 3')
        if not out.startswith('Python '):
            parser.error('unexpected output from python3 --version: %s' %
                         out)
        vers = version.LooseVersion(out[len('Python '):])
        if vers < version.LooseVersion('3.5.0'):
            parser.error('--with-python3 version must be 3.5.0 or greater; '
                         'got %s' % out)

    if options.blacklist:
        options.blacklist = parselistfiles(options.blacklist, 'blacklist')
    if options.whitelist:
        options.whitelisted = parselistfiles(options.whitelist, 'whitelist')
    else:

            self._hgcommand = os.path.basename(self.options.with_chg)

        osenvironb[b"BINDIR"] = self._bindir
        osenvironb[b"PYTHON"] = PYTHON

        if self.options.with_python3:
            osenvironb[b'PYTHON3'] = self.options.with_python3

        fileb = _bytespath(__file__)
        runtestdir = os.path.abspath(os.path.dirname(fileb))
        osenvironb[b'RUNTESTDIR'] = runtestdir
        if PYTHON3:
            sepb = _bytespath(os.pathsep)