Mercurial > hg
view tests/test-atomictempfile.py @ 18305:2502a15e033d
branchmap: pass revision insteads of changectx to the update function
Creation of changectx objects is very slow, and they are not very
useful. We are going to drop them. The first step is to change the
function argument type.
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
---|---|
date | Tue, 08 Jan 2013 01:28:39 +0100 |
parents | 774da7121fc9 |
children | fb9d1c2805ff |
line wrap: on
line source
import os import glob from mercurial.util import atomictempfile # basic usage def test1_simple(): if os.path.exists('foo'): os.remove('foo') file = atomictempfile('foo') (dir, basename) = os.path.split(file._tempname) assert not os.path.isfile('foo') assert basename in glob.glob('.foo-*') file.write('argh\n') file.close() assert os.path.isfile('foo') assert basename not in glob.glob('.foo-*') print 'OK' # discard() removes the temp file without making the write permanent def test2_discard(): if os.path.exists('foo'): os.remove('foo') file = atomictempfile('foo') (dir, basename) = os.path.split(file._tempname) file.write('yo\n') file.discard() assert not os.path.isfile('foo') assert basename not in os.listdir('.') print 'OK' # if a programmer screws up and passes bad args to atomictempfile, they # get a plain ordinary TypeError, not infinite recursion def test3_oops(): try: file = atomictempfile() except TypeError: print "OK" else: print "expected TypeError" if __name__ == '__main__': test1_simple() test2_discard() test3_oops()