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Patch 1339796: add a relpath() function to os.path.

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This commit is contained in:
Collin Winter 2007-03-16 22:16:08 +00:00
parent 6de691d78c
commit 6f187743ff
7 changed files with 77 additions and 3 deletions
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13
Lib/test/test_posixpath.py
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@ -2,7 +2,7 @@
from test import test_support
import posixpath, os
from posixpath import realpath, abspath, join, dirname, basename
from posixpath import realpath, abspath, join, dirname, basename, relpath
# An absolute path to a temporary filename for testing. We can't rely on TESTFN
# being an absolute path, so we need this.
@ -479,6 +479,17 @@ def test_realpath_resolve_first(self):
safe_rmdir(ABSTFN + "/k")
safe_rmdir(ABSTFN)
def test_relpath(self):
currentdir = os.path.split(os.getcwd())[-1]
self.assertRaises(ValueError, posixpath.relpath, "")
self.assertEqual(posixpath.relpath("a"), "a")
self.assertEqual(posixpath.relpath(os.path.abspath("a")), "a")
self.assertEqual(posixpath.relpath("a/b"), "a/b")
self.assertEqual(posixpath.relpath("../a/b"), "../a/b")
self.assertEqual(posixpath.relpath("a", "../b"), "../"+currentdir+"/a")
self.assertEqual(posixpath.relpath("a/b", "../c"), "../"+currentdir+"/a/b")
self.assertEqual(posixpath.relpath("a", "b/c"), "../../a")
def test_main():
test_support.run_unittest(PosixPathTest)