Add tests for issue #2843, the as-yet-unimplemented depth fold-up behavior.
Add tests for issue #2843, the as-yet-unimplemented depth fold-up behavior.

Patch by: Guo Rui <timmyguo@mail.ustc.edu.cn>
(I made minor tweaks to doc strings, comments, and formatting.)

* subversion/tests/cmdline/depth_tests.py
  (depth_folding_clean_trees_1, depth_folding_clean_trees_2,
   depth_fold_expand_clean_trees): New tests.
  (test_list): Run them XFail.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion