Fix closes issue12683 - urljoin to work with relative join of svn scheme.
diff --git a/Lib/test/test_urlparse.py b/Lib/test/test_urlparse.py
index 72f3776..af200d5 100644
--- a/Lib/test/test_urlparse.py
+++ b/Lib/test/test_urlparse.py
@@ -371,6 +371,8 @@
         self.checkJoin('http:///', '..','http:///')
         self.checkJoin('', 'http://a/b/c/g?y/./x','http://a/b/c/g?y/./x')
         self.checkJoin('', 'http://a/./g', 'http://a/./g')
+        self.checkJoin('svn://pathtorepo/dir1', 'dir2', 'svn://pathtorepo/dir2')
+        self.checkJoin('svn://pathtorepo/dir1', 'dir2', 'svn://pathtorepo/dir2')
 
     def test_RFC2732(self):
         str_cases = [