How can I make window movement commands ignore a certain window?

Question

So I generally have 3 buffers open in Emacs.

1. One buffer for the actual code I am writing.
2. One buffer for the unit test for said code.
3. A third buffer that displays the results of the unit test. This buffer comes into being below the two other buffers when I run my unit test C-x SPACE.

How do I disable this third buffer such that when I press C-x o I am only switching between buffer 1 and buffer 2? Currently, I switch between buffer 1, then buffer 2, then buffer 3, then buffer 1, etc. To be specific, I want C-x o to only switch between buffer 1 and 2.

Thank you.

Answer 1

A general solution to this (can look) something like the following:

(defvar ignore-windows-containing-buffers-matching-res '("\\*Help")
      "List of regular expressions specifying windows to skip (if window contains buffer that matches, skip)")

(defadvice other-window (before other-window-ignore-windows-containing activate)
  "skip over windows containing buffers which match regular expressions in 'ignore-windows-containing-buffers-matching-res"
  (if (and (= 1 (ad-get-arg 0)) (interactive-p))
      (let* ((win (next-window))
             (bname (buffer-name (window-buffer win))))
        (when (some 'identity (mapcar '(lambda (re)
                                        (string-match re bname))
                                     ignore-windows-containing-buffers-matching-res))
          (ad-set-arg 0 2)))))

Customize the variable to be a regular expression matching the buffer names you want to skip.

Answer 2

Trey's answer will do exactly what you want (at least it looks like it will; I haven't tried it). A more generic solution would be to use swbuff with either swbuff-x or my own swbuff-advice. Info about all three can be found on the Emacs Wiki swbuff page.