tests/test-match.py

py3: replace file() with open() in test-convert-mtn.t

While I was here, I added b'' prefixes to make sure we write things correctly in
bytes mode on Python 3.

Differential Revision: https://phab.mercurial-scm.org/D2111

from __future__ import absolute_import

import unittest

import silenttestrunner

from mercurial import (
    match as matchmod,
)

class NeverMatcherTests(unittest.TestCase):

    def testVisitdir(self):
        m = matchmod.nevermatcher('', '')
        self.assertFalse(m.visitdir('.'))
        self.assertFalse(m.visitdir('dir'))

if __name__ == '__main__':
    silenttestrunner.main(__name__)