Patch 1339796: add a relpath() function to os.path.
diff --git a/Lib/test/test_posixpath.py b/Lib/test/test_posixpath.py
index 5632dcc..e2adb34 100644
--- a/Lib/test/test_posixpath.py
+++ b/Lib/test/test_posixpath.py
@@ -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 @@
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)