diff options
Diffstat (limited to 'test/lisp/simple-tests.el')
| -rw-r--r-- | test/lisp/simple-tests.el | 176 |
1 files changed, 142 insertions, 34 deletions
diff --git a/test/lisp/simple-tests.el b/test/lisp/simple-tests.el index d9f059c8fc2..cc2feebbefa 100644 --- a/test/lisp/simple-tests.el +++ b/test/lisp/simple-tests.el @@ -22,6 +22,11 @@ (require 'ert) (eval-when-compile (require 'cl-lib)) +(defun simple-test--buffer-substrings () + "Return cons of buffer substrings before and after point." + (cons (buffer-substring (point-min) (point)) + (buffer-substring (point) (point-max)))) + (defmacro simple-test--dummy-buffer (&rest body) (declare (indent 0) (debug t)) @@ -31,10 +36,7 @@ (insert "(a b") (save-excursion (insert " c d)")) ,@body - (with-no-warnings - (cons (buffer-substring (point-min) (point)) - (buffer-substring (point) (point-max)))))) - + (with-no-warnings (simple-test--buffer-substrings)))) ;;; `transpose-sexps' @@ -46,8 +48,7 @@ (insert "(s1) (s2) (s3) (s4) (s5)") (backward-sexp 1) ,@body - (cons (buffer-substring (point-min) (point)) - (buffer-substring (point) (point-max))))) + (simple-test--buffer-substrings))) ;;; Transposition with negative args (bug#20698, bug#21885) (ert-deftest simple-transpose-subr () @@ -215,37 +216,144 @@ ;;; `delete-indentation' + (ert-deftest simple-delete-indentation-no-region () - "delete-indentation works when no mark is set." - ;; interactive \r returns nil for BEG END args - (unwind-protect - (with-temp-buffer - (insert (concat "zero line \n" - "first line \n" - "second line")) - (delete-indentation) - (should (string-equal - (buffer-string) - (concat "zero line \n" - "first line second line"))) - ))) + "Test `delete-indentation' when no mark is set; see bug#35021." + (with-temp-buffer + (insert " first \n second \n third \n fourth ") + (should-not (mark t)) + ;; Without prefix argument. + (should-not (call-interactively #'delete-indentation)) + (should (equal (simple-test--buffer-substrings) + '(" first \n second \n third" . " fourth "))) + (should-not (call-interactively #'delete-indentation)) + (should (equal (simple-test--buffer-substrings) + '(" first \n second" . " third fourth "))) + ;; With prefix argument. + (goto-char (point-min)) + (let ((current-prefix-arg '(4))) + (should-not (call-interactively #'delete-indentation))) + (should (equal (simple-test--buffer-substrings) + '(" first" . " second third fourth "))))) (ert-deftest simple-delete-indentation-inactive-region () - "delete-indentation ignores inactive region." - ;; interactive \r returns non-nil for BEG END args - (unwind-protect - (with-temp-buffer - (insert (concat "zero line \n" - "first line \n" - "second line")) - (push-mark (point-min) t t) - (deactivate-mark) - (delete-indentation) - (should (string-equal - (buffer-string) - (concat "zero line \n" - "first line second line"))) - ))) + "Test `delete-indentation' with an inactive region." + (with-temp-buffer + (insert " first \n second \n third ") + (set-marker (mark-marker) (point-min)) + (should (mark t)) + (should-not (call-interactively #'delete-indentation)) + (should (equal (simple-test--buffer-substrings) + '(" first \n second" . " third "))))) + +(ert-deftest simple-delete-indentation-blank-line () + "Test `delete-indentation' does not skip blank lines. +See bug#35036." + (with-temp-buffer + (insert "\n\n third \n \n \n sixth \n\n") + ;; Without prefix argument. + (should-not (delete-indentation)) + (should (equal (simple-test--buffer-substrings) + '("\n\n third \n \n \n sixth \n" . ""))) + (should-not (delete-indentation)) + (should (equal (simple-test--buffer-substrings) + '("\n\n third \n \n \n sixth" . ""))) + (should-not (delete-indentation)) + (should (equal (simple-test--buffer-substrings) + '("\n\n third \n \n" . "sixth"))) + ;; With prefix argument. + (goto-char (point-min)) + (should-not (delete-indentation t)) + (should (equal (simple-test--buffer-substrings) + '("" . "\n third \n \nsixth"))) + (should-not (delete-indentation t)) + (should (equal (simple-test--buffer-substrings) + '("" . "third \n \nsixth"))) + (should-not (delete-indentation t)) + (should (equal (simple-test--buffer-substrings) + '("third" . "\nsixth"))) + (should-not (delete-indentation t)) + (should (equal (simple-test--buffer-substrings) + '("third" . " sixth"))))) + +(ert-deftest simple-delete-indentation-boundaries () + "Test `delete-indentation' motion at buffer boundaries." + (with-temp-buffer + (insert " first \n second \n third ") + ;; Stay at EOB. + (should-not (delete-indentation t)) + (should (equal (simple-test--buffer-substrings) + '(" first \n second \n third " . ""))) + ;; Stay at BOB. + (forward-line -1) + (save-restriction + (narrow-to-region (point) (line-end-position)) + (should-not (delete-indentation)) + (should (equal (simple-test--buffer-substrings) + '("" . " second "))) + ;; Go to EOB. + (should-not (delete-indentation t)) + (should (equal (simple-test--buffer-substrings) + '(" second " . "")))) + ;; Go to BOB. + (end-of-line 0) + (should-not (delete-indentation)) + (should (equal (simple-test--buffer-substrings) + '("" . " first \n second \n third "))))) + +(ert-deftest simple-delete-indentation-region () + "Test `delete-indentation' with an active region." + (with-temp-buffer + ;; Empty region. + (insert " first ") + (should-not (delete-indentation nil (point) (point))) + (should (equal (simple-test--buffer-substrings) + '(" first " . ""))) + ;; Single line. + (should-not (delete-indentation + nil (line-beginning-position) (1- (point)))) + (should (equal (simple-test--buffer-substrings) + '("" . " first "))) + (should-not (delete-indentation nil (1+ (point)) (line-end-position))) + (should (equal (simple-test--buffer-substrings) + '(" " . "first "))) + (should-not (delete-indentation + nil (line-beginning-position) (line-end-position))) + (should (equal (simple-test--buffer-substrings) + '("" . " first "))) + ;; Multiple lines. + (goto-char (point-max)) + (insert "\n second \n third \n fourth ") + (goto-char (point-min)) + (should-not (delete-indentation + nil (line-end-position) (line-beginning-position 2))) + (should (equal (simple-test--buffer-substrings) + '(" first" . " second \n third \n fourth "))) + (should-not (delete-indentation + nil (point) (1+ (line-beginning-position 2)))) + (should (equal (simple-test--buffer-substrings) + '(" first second" . " third \n fourth "))) + ;; Prefix argument overrides region. + (should-not (delete-indentation t (point-min) (point))) + (should (equal (simple-test--buffer-substrings) + '(" first second third" . " fourth "))))) + +(ert-deftest simple-delete-indentation-prefix () + "Test `delete-indentation' with a fill prefix." + (with-temp-buffer + (insert "> first \n> second \n> third \n> fourth ") + (let ((fill-prefix "")) + (delete-indentation)) + (should (equal (simple-test--buffer-substrings) + '("> first \n> second \n> third" . " > fourth "))) + (let ((fill-prefix "<")) + (delete-indentation)) + (should (equal (simple-test--buffer-substrings) + '("> first \n> second" . " > third > fourth "))) + (let ((fill-prefix ">")) + (delete-indentation)) + (should (equal (simple-test--buffer-substrings) + '("> first" . " second > third > fourth "))))) ;;; `delete-trailing-whitespace' |