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org-mode/testing/lisp/test-ob-lob.el
Nicolas Goaziou df10309489 ob-ref: Properly resolve references in ":post" arguments 
* lisp/ob-core.el (org-babel-exp-reference-buffer): New variable, as
  a replacement for `org-current-export-file'.
(org-babel-check-confirm-evaluate): Use new variable.
* lisp/ob-exp.el (org-babel-exp-in-export-file): Use new variable.
(org-babel-exp-get-export-buffer): Remove function.
(org-babel-exp-process-buffer): Change signature.
* lisp/ob-ref.el (org-babel-ref-resolve): Use new variable during
  export in order to properly resolve references.
* lisp/ox.el (org-export-execute-babel-code): Use new variable.

* contrib/lisp/org-wikinodes.el (org-wikinodes-process-links-for-export):
  Remove a cond branch as it is always
  false (`org-current-export-file' couldn't be a string).

* testing/lisp/test-ob-lob.el (test-ob-lob/export-lob-lines): Update
  test.
* testing/lisp/test-ob.el (test-ob/eval-header-argument): Update test.
* testing/lisp/test-ob-exp.el (ob-export/reference-in-post-header):
  New test.

During export, Babel executes sequentially all blocks in the buffer
being exported.  This can lead to modifications preventing some
references from being resolved.  As a workaround, Babel stores
a pristine copy of the buffer in a variable so it can always find
needed references.

Before this patch, the variable storing this copy was
`org-current-export-file' and was dynamically bound in "ox.el".  It
was used to resolve noweb references (`org-babel-expand-noweb-references')
but not regular references (`org-babel-ref-resolve').

Now, the variable is `org-babel-exp-reference-buffer' and it is bound
from `org-babel-exp-process-buffer'.  It is used to resolve all
references.  In particular, this allows to use references in :post
header.

Thanks to Jarmo Hurri for reporting it.
2014-03-19 21:34:56 +01:00

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;;; test-ob-lob.el --- test for ob-lob.el
;; Copyright (c) 2010-2014 Eric Schulte
;; Authors: Eric Schulte
;; This file is not part of GNU Emacs.
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Tests
(org-babel-lob-ingest
(expand-file-name
"library-of-babel.org"
(expand-file-name
"doc"
(expand-file-name
".."
(expand-file-name
".."
(file-name-directory
(or load-file-name buffer-file-name)))))))
(ert-deftest test-ob-lob/ingest ()
"Test the ingestion of an org-mode file."
(should (< 0 (org-babel-lob-ingest
(expand-file-name "babel.org" org-test-example-dir)))))
(ert-deftest test-ob-lob/call-with-header-arguments ()
"Test the evaluation of a library of babel #+call: line."
(org-test-at-id "fab7e291-fde6-45fc-bf6e-a485b8bca2f0"
(move-beginning-of-line 1)
(forward-line 6)
(message (buffer-substring (point-at-bol) (point-at-eol)))
(should (string= "testing" (org-babel-lob-execute
(org-babel-lob-get-info))))
(forward-line 1)
(should (string= "testing" (caar (org-babel-lob-execute
(org-babel-lob-get-info)))))
(forward-line 1)
(should (string= "testing" (org-babel-lob-execute
(org-babel-lob-get-info))))
(forward-line 1)
(should (string= "testing" (caar (org-babel-lob-execute
(org-babel-lob-get-info)))))
(forward-line 1)
(should (string= "testing" (org-babel-lob-execute
(org-babel-lob-get-info))))
(forward-line 1)
(should (string= "testing" (caar (org-babel-lob-execute
(org-babel-lob-get-info)))))
(forward-line 1) (beginning-of-line) (forward-char 27)
(should (string= "testing" (org-babel-lob-execute
(org-babel-lob-get-info))))
(forward-line 1) (beginning-of-line) (forward-char 27)
(should (string= "testing" (caar (org-babel-lob-execute
(org-babel-lob-get-info)))))
(forward-line 1) (beginning-of-line)
(should (= 4 (org-babel-lob-execute (org-babel-lob-get-info))))
(forward-line 1)
(should (string= "testing" (org-babel-lob-execute
(org-babel-lob-get-info))))
(forward-line 1)
(should (string= "123" (org-babel-lob-execute (org-babel-lob-get-info))))))
(ert-deftest test-ob-lob/export-lob-lines ()
"Test the export of a variety of library babel call lines."
(org-test-at-id "72ddeed3-2d17-4c7f-8192-a575d535d3fc"
(org-narrow-to-subtree)
(let ((buf (current-buffer))
(string (buffer-string)))
(with-temp-buffer
(org-mode)
(insert string)
(org-babel-exp-process-buffer buf)
(message (buffer-string))
(goto-char (point-min))
(should (re-search-forward "^: 0" nil t))
(should (re-search-forward "call =2= stuck" nil t))
(should (re-search-forward
"exported =call_double(it=2)= because" nil t))
(should (re-search-forward "^=6= because" nil t))
(should (re-search-forward "results 8 should" nil t))
(should (re-search-forward "following 2\\*5==10= should" nil t))))))
(ert-deftest test-ob-lob/do-not-eval-lob-lines-in-example-blocks-on-export ()
(require 'ox)
(org-test-with-temp-text-in-file "
for export
#+begin_example
#+call: rubbish()
#+end_example"
(should (progn (org-export-execute-babel-code) t))))
(ert-deftest test-ob-lob/caching-call-line ()
(let ((temporary-value-for-test 0))
(org-test-with-temp-text "
#+name: call-line-caching-example
#+begin_src emacs-lisp :var bar=\"baz\"
(setq temporary-value-for-test (+ 1 temporary-value-for-test))
#+end_src
#+call: call-line-caching-example(\"qux\") :cache yes
"
(goto-char (point-max)) (forward-line -1)
;; first execution should flip value to t
(should (equal (org-babel-lob-execute (org-babel-lob-get-info)) 1))
;; if cached, second evaluation will retain the t value
;;
;; Note: This instance tests for equality with "1". We would
;; prefer if the cached result returned was actually 1, however
;; this is not the current behavior so this test is encoding
;; undesired behavior (because the current goal is simply to see
;; that caching is used on call lines).
;;
(should (equal (org-babel-lob-execute (org-babel-lob-get-info)) "1")))))
(ert-deftest test-ob-lob/named-caching-call-line ()
(let ((temporary-value-for-test 0))
(org-test-with-temp-text "
#+name: call-line-caching-example
#+begin_src emacs-lisp :var bar=\"baz\"
(setq temporary-value-for-test (+ 1 temporary-value-for-test))
#+end_src
#+name: call-line-caching-called
#+call: call-line-caching-example(\"qux\") :cache yes
"
(goto-char (point-max)) (forward-line -1)
;; first execution should flip value to t
(should (equal (org-babel-lob-execute (org-babel-lob-get-info)) 1))
;; if cached, second evaluation will retain the t value
;;
;; Note: This instance tests for equality with "1". We would
;; prefer if the cached result returned was actually 1, however
;; this is not the current behavior so this test is encoding
;; undesired behavior (because the current goal is simply to see
;; that caching is used on call lines).
;;
(should (equal (org-babel-lob-execute (org-babel-lob-get-info)) "1")))))
(provide 'test-ob-lob)
;;; test-ob-lob.el ends here
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