call-interactively behavior

["Nicolas P. Rougier (inria)" <nicolas.rougier@inria.fr>]

Hi all,

I'm trying to use call-interactively using the following code:

#+begin_src 
(with-current-buffer (get-buffer-create "hippie-test")
  (setq-local hippie-expand-try-functions-list
              '(try-complete-file-name-partially
                try-complete-file-name))
  (text-mode)
  (use-local-map (copy-keymap text-mode-map))
  (local-set-key (kbd "TAB") 'hippie-expand)

  (insert "~/D")
  (call-interactively (key-binding (kbd "TAB")))
  (call-interactively (key-binding (kbd "TAB")))
  (call-interactively (key-binding (kbd "TAB"))))
#+end_src

In my home root, there are 3 directoriess: ~/Desktop, ~/Downloads 
and ~/Documents.

When I execute the code above, the final content in the buffer is:
~/Desktop/../../

If I switch to the buffer, insert "~/D" and hit tab three times, I 
cycle over the three directories above, which is the expected 
behavior. My question is thus: why I don't get the same behavior 
and what would be the proper way to simulate the tab key press (or 
any other key)?

Nicolas

-- 
Nicolas P. Rougier —— www.labri.fr/perso/nrougier
Institute of Neurodegenerative Diseases, Bordeaux