view tests/test-doctest.py @ 50706:0452af304808

stream-clone: add a v3 version of the protocol

This new version is less rigid regarding the extract number of files and number
of bytes to be actually transfered, it also lays the groundwork for other
improvements.

The format stays experimental, but this is an interesting base to build upon.

# this is hack to make sure no escape characters are inserted into the output


import doctest
import os
import re
import subprocess
import sys

if 'TERM' in os.environ:
    del os.environ['TERM']


class py3docchecker(doctest.OutputChecker):
    def check_output(self, want, got, optionflags):
        want2 = re.sub(r'''\bu(['"])(.*?)\1''', r'\1\2\1', want)  # py2: u''
        got2 = re.sub(r'''\bb(['"])(.*?)\1''', r'\1\2\1', got)  # py3: b''
        # py3: <exc.name>: b'<msg>' -> <name>: <msg>
        #      <exc.name>: <others> -> <name>: <others>
        got2 = re.sub(
            r'''^mercurial\.\w+\.(\w+): (['"])(.*?)\2''',
            r'\1: \3',
            got2,
            re.MULTILINE,
        )
        got2 = re.sub(r'^mercurial\.\w+\.(\w+): ', r'\1: ', got2, re.MULTILINE)
        return any(
            doctest.OutputChecker.check_output(self, w, g, optionflags)
            for w, g in [(want, got), (want2, got2)]
        )


def testmod(name, optionflags=0, testtarget=None):
    __import__(name)
    mod = sys.modules[name]
    if testtarget is not None:
        mod = getattr(mod, testtarget)

    # minimal copy of doctest.testmod()
    finder = doctest.DocTestFinder()
    checker = py3docchecker()
    runner = doctest.DocTestRunner(checker=checker, optionflags=optionflags)
    for test in finder.find(mod, name):
        runner.run(test)
    runner.summarize()


DONT_RUN = []

# Exceptions to the defaults for a given detected module. The value for each
# module name is a list of dicts that specify the kwargs to pass to testmod.
# testmod is called once per item in the list, so an empty list will cause the
# module to not be tested.
testmod_arg_overrides = {
    'i18n.check-translation': DONT_RUN,  # may require extra installation
    'mercurial.dagparser': [{'optionflags': doctest.NORMALIZE_WHITESPACE}],
    'mercurial.keepalive': DONT_RUN,  # >>> is an example, not a doctest
    'mercurial.posix': DONT_RUN,  # run by mercurial.platform
    'mercurial.statprof': DONT_RUN,  # >>> is an example, not a doctest
    'mercurial.util': [{}, {'testtarget': 'platform'}],  # run twice!
    'mercurial.windows': DONT_RUN,  # run by mercurial.platform
    'tests.test-url': [{'optionflags': doctest.NORMALIZE_WHITESPACE}],
}

fileset = 'set:(**.py)'

cwd = os.path.dirname(os.environ["TESTDIR"])

if not os.path.isdir(os.path.join(cwd, ".hg")):
    sys.exit(0)

files = subprocess.check_output(
    "hg files --print0 \"%s\"" % fileset,
    shell=True,
    cwd=cwd,
).split(b'\0')

if sys.version_info[0] >= 3:
    cwd = os.fsencode(cwd)

mods_tested = set()
for f in files:
    if not f:
        continue

    with open(os.path.join(cwd, f), "rb") as fh:
        if not re.search(br'\n\s*>>>', fh.read()):
            continue

    f = f.decode()

    modname = f.replace('.py', '').replace('\\', '.').replace('/', '.')

    # Third-party modules aren't our responsibility to test, and the modules in
    # contrib generally do not have doctests in a good state, plus they're hard
    # to import if this test is running with py2, so we just skip both for now.
    if modname.startswith('mercurial.thirdparty.') or modname.startswith(
        'contrib.'
    ):
        continue

    for kwargs in testmod_arg_overrides.get(modname, [{}]):
        mods_tested.add((modname, '%r' % (kwargs,)))
        if modname.startswith('tests.'):
            # On py2, we can't import from tests.foo, but it works on both py2
            # and py3 with the way that PYTHONPATH is setup to import without
            # the 'tests.' prefix, so we do that.
            modname = modname[len('tests.') :]

        testmod(modname, **kwargs)

# Meta-test: let's make sure that we actually ran what we expected to, above.
# Each item in the set is a 2-tuple of module name and stringified kwargs passed
# to testmod.
expected_mods_tested = set(
    [
        ('hgext.convert.convcmd', '{}'),
        ('hgext.convert.cvsps', '{}'),
        ('hgext.convert.filemap', '{}'),
        ('hgext.convert.p4', '{}'),
        ('hgext.convert.subversion', '{}'),
        ('hgext.fix', '{}'),
        ('hgext.mq', '{}'),
        ('mercurial.changelog', '{}'),
        ('mercurial.cmdutil', '{}'),
        ('mercurial.color', '{}'),
        ('mercurial.dagparser', "{'optionflags': 4}"),
        ('mercurial.dirstateutils.v2', '{}'),
        ('mercurial.encoding', '{}'),
        ('mercurial.fancyopts', '{}'),
        ('mercurial.formatter', '{}'),
        ('mercurial.hg', '{}'),
        ('mercurial.hgweb.hgwebdir_mod', '{}'),
        ('mercurial.match', '{}'),
        ('mercurial.mdiff', '{}'),
        ('mercurial.minirst', '{}'),
        ('mercurial.parser', '{}'),
        ('mercurial.patch', '{}'),
        ('mercurial.pathutil', '{}'),
        ('mercurial.pycompat', '{}'),
        ('mercurial.revlogutils.deltas', '{}'),
        ('mercurial.revset', '{}'),
        ('mercurial.revsetlang', '{}'),
        ('mercurial.simplemerge', '{}'),
        ('mercurial.smartset', '{}'),
        ('mercurial.store', '{}'),
        ('mercurial.subrepo', '{}'),
        ('mercurial.templater', '{}'),
        ('mercurial.ui', '{}'),
        ('mercurial.util', "{'testtarget': 'platform'}"),
        ('mercurial.util', '{}'),
        ('mercurial.utils.dateutil', '{}'),
        ('mercurial.utils.stringutil', '{}'),
        ('mercurial.utils.urlutil', '{}'),
        ('tests.drawdag', '{}'),
        ('tests.test-run-tests', '{}'),
        ('tests.test-url', "{'optionflags': 4}"),
    ]
)

unexpectedly_run = mods_tested.difference(expected_mods_tested)
not_run = expected_mods_tested.difference(mods_tested)

if unexpectedly_run:
    print('Unexpectedly ran (probably need to add to list):')
    for r in sorted(unexpectedly_run):
        print('  %r' % (r,))
if not_run:
    print('Expected to run, but was not run (doctest removed?):')
    for r in sorted(not_run):
        print('  %r' % (r,))