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blob 74db053c97e01dabc210501fa2b18d6b5f589692 11510 bytes (raw)
name: test/lisp/vc/ediff-ptch-tests.el 	 # note: path name is non-authoritative(*)

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;;; ediff-ptch-tests.el --- Tests for ediff-ptch.el

;; Copyright (C) 2016-2017 Free Software Foundation, Inc.

;; Author: Tino Calancha <tino.calancha@gmail.com>

;; 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/'.

;;; Code:

(require 'ert)
(require 'ediff-ptch)
(require 'ediff-diff) ; For `ediff-diff-program'.
(eval-when-compile (require 'cl-lib))

(ert-deftest ediff-ptch-test-bug25010 ()
  "Test for http://debbugs.gnu.org/25010 ."
  (with-temp-buffer
    (insert "diff --git a/lisp/vc/ediff-ptch.el b/lisp/vc/ediff-ptch.el
index 6a07f80..6e8e947 100644
--- a/lisp/vc/ediff-ptch.el
+++ b/lisp/vc/ediff-ptch.el
@@ -120,11 +120,12 @@ ediff-patch-default-directory
")
    (goto-char (point-min))
    (let ((filename
           (progn
             (re-search-forward ediff-context-diff-label-regexp nil t)
             (match-string 1))))
      (should-not (string-suffix-p "@@" filename)))))


(ert-deftest ediff-ptch-test-bug26084 ()
  "Test for http://debbugs.gnu.org/26084 ."
  (skip-unless (executable-find "git"))
  (skip-unless (executable-find ediff-patch-program))
  (let* ((tmpdir (make-temp-file "ediff-ptch-test" t))
         (default-directory (file-name-as-directory tmpdir))
         (patch (make-temp-file "ediff-ptch-test"))
         (qux (expand-file-name "qux.txt" tmpdir))
         (bar (expand-file-name "bar.txt" tmpdir))
         (git-program (executable-find "git")))
    ;; Create repository.
    (with-temp-buffer
      (insert "qux here\n")
      (write-region nil nil qux nil 'silent)
      (erase-buffer)
      (insert "bar here\n")
      (write-region nil nil bar nil 'silent))
    (call-process git-program nil nil nil "init")
    (call-process git-program nil nil nil "add" ".")
    (call-process git-program nil nil nil "commit" "-m" "Test repository.")
    ;; Update repo., save the diff and reset to initial state.
    (with-temp-buffer
      (insert "foo here\n")
      (write-region nil nil qux nil 'silent)
      (write-region nil nil bar nil 'silent))
    (call-process git-program nil `(:file ,patch) nil "diff")
    (call-process git-program nil nil nil "reset" "--hard" "HEAD")
    (find-file patch)
    (unwind-protect
        (let* ((info
                (progn (ediff-map-patch-buffer (current-buffer)) ediff-patch-map))
               (patch1
                (buffer-substring-no-properties
                 (car (nth 3 (car info)))
                 (car (nth 4 (car info)))))
               (patch2
                (buffer-substring-no-properties
                 (car (nth 3 (cadr info)))
                 (car (nth 4 (cadr info))))))
          ;; Apply both patches.
          (dolist (x (list (cons patch1 bar) (cons patch2 qux)))
            (with-temp-buffer
              (insert (car x))
              (call-process-region (point-min)
                                   (point-max)
                                   ediff-patch-program
                                   nil nil nil
                                   "-b" (cdr x))))
          ;; Check backup files were saved correctly.
          (dolist (x (list qux bar))
            (let ((backup
                   (car
                    (directory-files
                     tmpdir 'full
                     (concat (file-name-nondirectory x) ".")))))
              (should-not
               (string= (with-temp-buffer
                          (insert-file-contents x)
                          (buffer-string))
                        (with-temp-buffer
                          (insert-file-contents backup)
                          (buffer-string))))))
          (delete-directory tmpdir 'recursive)
          (delete-file patch)))))

(ert-deftest ediff-ptch-test-bug26028 ()
  "Test for http://debbugs.gnu.org/26028 ."
  (skip-unless (executable-find "git"))
  (skip-unless (executable-find ediff-patch-program))
  (skip-unless (executable-find ediff-diff-program))
  (let ((git-program (executable-find "git"))
        (default-dir default-directory)
        tmpdir buffers)
    ;;; Simple patch: old/src/hello.c /new/src/hello.c
    (unwind-protect
        (let* ((dir (make-temp-file "multipatch-test" t))
               (file1 (expand-file-name "old/src/hello.c" dir))
               (file2 (expand-file-name "new/src/hello.c" dir))
               (patch (expand-file-name "tmp.patch" dir))
               (default-directory (file-name-as-directory dir)))
          (setq tmpdir dir)
          (make-directory (expand-file-name "old/src/" dir) 'parents)
          (make-directory (expand-file-name "new/src/" dir) 'parents)
          (with-temp-buffer
            (insert "void main() { }\n")
            (write-region nil nil file1 nil 'silent)
            (erase-buffer)
            (insert "int main() { return 0; }\n")
            (write-region nil nil file2 nil 'silent)
            (erase-buffer)
            (call-process ediff-diff-program nil t nil "-cr" "old" "new")
            (write-region nil nil patch nil 'silent)
            (cl-letf (((symbol-function 'y-or-n-p) (lambda (x) nil))
                      ((symbol-function 'ediff-prompt-for-patch-file)
                       (lambda (&rest x) (find-file-noselect patch)))
                      ((symbol-function 'read-file-name) (lambda (x1 x2 x3 x4 x5) x5))
                      ((symbol-function 'ediff-dispatch-file-patching-job)
                       (lambda (x y) y)))
              (should (equal (file-relative-name file1) (epatch nil patch)))
              (push (get-file-buffer patch) buffers))))
      (when (file-exists-p tmpdir)
        (setq default-directory default-dir)
        (delete-directory tmpdir 'recursive))
      (mapc (lambda (b)
              (when (buffer-live-p b) (kill-buffer b)))
            buffers)
      (setq buffers nil))
    ;;; Simple Git patch: proj/src/hello.c
    (unwind-protect
        (let* ((dir (make-temp-file "multipatch-test" t))
               (rootdir (expand-file-name "proj/src/" dir))
               (file (expand-file-name "hello.c" rootdir))
               (patch (expand-file-name "tmp.patch" dir))
               (default-directory (file-name-as-directory rootdir)))
          (make-directory rootdir 'parents)
          (setq tmpdir dir)
          (with-temp-buffer
            (insert "void main() { }\n")
            (write-region nil nil file nil 'silent)
            (call-process git-program nil nil nil "init")
            (call-process git-program nil nil nil "add" ".")
            (call-process git-program nil nil nil "commit" "-m" "test repository.")
            (erase-buffer)
            (insert "int main() { return 0; }\n")
            (write-region nil nil file nil 'silent)
            (call-process git-program nil `(:file ,patch) nil "diff")
            (call-process git-program nil nil nil "reset" "--hard" "head")
            (cl-letf (((symbol-function 'y-or-n-p) (lambda (x) nil))
                      ((symbol-function 'ediff-prompt-for-patch-file)
                       (lambda (&rest x) (find-file-noselect patch)))
                      ((symbol-function 'read-file-name) (lambda (&rest x) file))
                      ((symbol-function 'read-file-name) (lambda (x1 x2 x3 x4 x5) x5))
                      ((symbol-function 'ediff-dispatch-file-patching-job)
                       (lambda (x y) y)))
              (should (equal file (epatch nil patch)))))
          (push (get-file-buffer patch) buffers))
      ;; clean up
      (when (file-exists-p tmpdir)
        (setq default-directory default-dir)
        (delete-directory tmpdir 'recursive))
      (mapc (lambda (b)
              (when (buffer-live-p b) (kill-buffer b)))
            buffers)
      (setq buffers nil))
    ;;; Git multipatch.
    (unwind-protect
        (let* ((dir (make-temp-file "multipatch-test" t))
               (file1 (expand-file-name "proj/src/hello.c" dir))
               (file2 (expand-file-name "proj/src/bye.c" dir))
               (file3 (expand-file-name "proj/lisp/foo.el" dir))
               (file4 (expand-file-name "proj/lisp/bar.el" dir))
               (file5 (expand-file-name "proj/etc/news" dir))
               (patch (expand-file-name "tmp.patch" dir))
               (default-directory (expand-file-name "proj" dir)))
          (setq tmpdir dir)
          (dolist (d '("src" "lisp" "etc"))
            (setq rootdir (expand-file-name (concat "proj/" d) dir))
            (make-directory rootdir 'parents))
          (with-temp-buffer
            (insert "void main() { }\n")
            (write-region nil nil file1 nil 'silent)
            (write-region nil nil file2 nil 'silent)
            (erase-buffer)
            (insert "(defun foo () nil)\n")
            (write-region nil nil file3 nil 'silent)
            (erase-buffer)
            (insert "(defun bar () nil)\n")
            (write-region nil nil file4 nil 'silent)
            (erase-buffer)
            (insert "new functions 'foo' and 'bar'\n")
            (write-region nil nil file5 nil 'silent)
            (call-process git-program nil nil nil "init")
            (call-process git-program nil nil nil "add" "src" "lisp" "etc")
            (call-process git-program nil nil nil "commit" "-m" "test repository.");)
            (erase-buffer)
            (insert "int main() { return 0;}\n")
            (write-region nil nil file1 nil 'silent)
            (write-region nil nil file2 nil 'silent)
            (erase-buffer)
            (insert "(defun qux () nil)\n")
            (write-region nil nil file3 nil 'silent)
            (erase-buffer)
            (insert "(defun quux () nil)\n")
            (write-region nil nil file4 nil 'silent)
            (erase-buffer)
            (insert "new functions 'qux' and 'quux'\n")
            (write-region nil nil file5 nil 'silent)
            (call-process git-program nil `(:file ,patch) nil "diff")
            (call-process git-program nil nil nil "reset" "--hard" "head"))
          (cl-letf (((symbol-function 'y-or-n-p) (lambda (x) nil))
                    ((symbol-function 'ediff-get-patch-file) (lambda (&rest x) patch))
                    ((symbol-function 'read-file-name) (lambda (&rest x) patch)))
            (epatch nil patch)
            (with-current-buffer "*Ediff Session Group Panel*"
              (push (get-file-buffer patch) buffers)
              (should (= 5 (length (cdr ediff-meta-list))))
              ;; don't ask confirmation to exit.
              (cl-letf (((symbol-function 'y-or-n-p) (lambda (x) t)))
                (ediff-quit-meta-buffer)))))
      ;; clean up
      (when (file-exists-p tmpdir)
        (setq default-directory default-dir)
        (delete-directory tmpdir 'recursive))
      (when ediff-registry-buffer
        (push ediff-registry-buffer buffers))
      (mapc (lambda (b)
              (when (buffer-live-p b) (kill-buffer b)))
            buffers)
      (setq buffers nil))))


(provide 'ediff-ptch-tests)
;;; ediff-ptch-tests.el ends here

debug log:

solving 74db053c97 ...
found 74db053c97 in https://yhetil.org/emacs-bugs/871srfbyps.fsf@calancha-pc/
found 387786ced0 in https://git.savannah.gnu.org/cgit/emacs.git
preparing index
index prepared:
100644 387786ced06e7d521c12f32f8675b57e2aadc9f1	test/lisp/vc/ediff-ptch-tests.el

applying [1/1] https://yhetil.org/emacs-bugs/871srfbyps.fsf@calancha-pc/
diff --git a/test/lisp/vc/ediff-ptch-tests.el b/test/lisp/vc/ediff-ptch-tests.el
index 387786ced0..74db053c97 100644

Checking patch test/lisp/vc/ediff-ptch-tests.el...
Applied patch test/lisp/vc/ediff-ptch-tests.el cleanly.

index at:
100644 74db053c97e01dabc210501fa2b18d6b5f589692	test/lisp/vc/ediff-ptch-tests.el

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