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import os
import unittest
from bzrlib.tests import TestCaseWithTransport, TestCase
from bzrlib.branch import ScratchBranch, Branch
from bzrlib.errors import PathNotChild
from bzrlib.osutils import relpath, pathjoin, abspath, realpath
class MoreTests(TestCaseWithTransport):
def test_relpath(self):
"""test for branch path lookups
bzrlib.osutils._relpath do a simple but subtle
job: given a path (either relative to cwd or absolute), work out
if it is inside a branch and return the path relative to the base.
"""
import tempfile
from bzrlib.osutils import rmtree
savedir = os.getcwdu()
dtmp = tempfile.mkdtemp()
# On Mac OSX, /tmp actually expands to /private/tmp
dtmp = realpath(dtmp)
def rp(p):
return relpath(dtmp, p)
try:
# check paths inside dtmp while standing outside it
self.assertEqual(rp(pathjoin(dtmp, 'foo')), 'foo')
# root = nothing
self.assertEqual(rp(dtmp), '')
self.assertRaises(PathNotChild,
rp,
'/etc')
# now some near-miss operations -- note that
# os.path.commonprefix gets these wrong!
self.assertRaises(PathNotChild,
rp,
dtmp.rstrip('\\/') + '2')
self.assertRaises(PathNotChild,
rp,
dtmp.rstrip('\\/') + '2/foo')
# now operations based on relpath of files in current
# directory, or nearby
os.chdir(dtmp)
self.assertEqual(rp('foo/bar/quux'), 'foo/bar/quux')
self.assertEqual(rp('foo'), 'foo')
self.assertEqual(rp('./foo'), 'foo')
self.assertEqual(rp(abspath('foo')), 'foo')
self.assertRaises(PathNotChild,
rp, '../foo')
finally:
os.chdir(savedir)
rmtree(dtmp)
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