Add code to correctly revert a svn add'ed file.

tests/scm_unittest.py

 #!/usr/bin/python
 # Copyright (c) 2010 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """Unit tests for scm.py."""
 
 # pylint: disable=E1101,W0403
 
 # Fixes include path.
@@ skipping 264 matching lines @@
     scm.os.remove(scm.os.path.join(self.svn_root, 'origin'))
     self._capture(
         ['propset', 'foo', 'bar',
          scm.os.path.join(self.svn_root, 'prout', 'origin')])
     fake_repos.rmtree(scm.os.path.join(self.svn_root, 'prout'))
     with open(scm.os.path.join(self.svn_root, 'faa'), 'w') as f:
       f.write('eh')
     with open(scm.os.path.join(self.svn_root, 'faala'), 'w') as f:
       f.write('oh')
     self._capture(['add', scm.os.path.join(self.svn_root, 'faala')])
+    added_and_removed = scm.os.path.join(self.svn_root, 'added_and_removed')
+    with open(added_and_removed, 'w') as f:
+      f.write('oh')
+    self._capture(['add', added_and_removed])
+    scm.os.remove(added_and_removed)
 
     scm.SVN.Revert(self.svn_root)
     self._capture(['update', '--revision', 'base'])
 
     self.assertTree(self.tree, self.svn_root)
+    # Asserting the tree is not sufficient, svn status must come out clear too.
+    self.assertEquals('', self._capture(['status']))
 
 
 if __name__ == '__main__':
   import unittest
   unittest.main()
 
 # vim: ts=2:sw=2:tw=80:et: