view tests/test-atomictempfile.py @ 28284:0fe00bdb2f4f

run-tests: fix Python 3 incompatibilities

At one point run-tests.py and test-run-tests.t worked and passed
under Python 3.5. Various changes to run-tests.py over the past
several months appear to have broken Python 3.5 compatibility.

This patch implements various fixes (all related to str/bytes type
coercion) to make run-tests.py and test-run-tests.t mostly work
again. There are still a few failures in test-run-tests.t due to
issues importing mercurial.* modules. But at least run-tests.py
seems to work under 3.5 again.

import os
import glob
import unittest
import silenttestrunner

from mercurial.util import atomictempfile

class testatomictempfile(unittest.TestCase):
    def test1_simple(self):
        if os.path.exists('foo'):
            os.remove('foo')
        file = atomictempfile('foo')
        (dir, basename) = os.path.split(file._tempname)
        self.assertFalse(os.path.isfile('foo'))
        self.assertTrue(basename in glob.glob('.foo-*'))

        file.write('argh\n')
        file.close()

        self.assertTrue(os.path.isfile('foo'))
        self.assertTrue(basename not in glob.glob('.foo-*'))

    # discard() removes the temp file without making the write permanent
    def test2_discard(self):
        if os.path.exists('foo'):
            os.remove('foo')
        file = atomictempfile('foo')
        (dir, basename) = os.path.split(file._tempname)

        file.write('yo\n')
        file.discard()

        self.assertFalse(os.path.isfile('foo'))
        self.assertTrue(basename not in os.listdir('.'))

    # if a programmer screws up and passes bad args to atomictempfile, they
    # get a plain ordinary TypeError, not infinite recursion
    def test3_oops(self):
        self.assertRaises(TypeError, atomictempfile)

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