unofficial mirror of bug-gnu-emacs@gnu.org 
 help / color / mirror / code / Atom feed
blob cc2feebbefa3f8f299fc8f8a4a7929ae880ffc69 27038 bytes (raw)
name: test/lisp/simple-tests.el 	 # note: path name is non-authoritative(*)

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
 
;;; simple-test.el --- Tests for simple.el           -*- lexical-binding: t; -*-

;; Copyright (C) 2015-2019 Free Software Foundation, Inc.

;; Author: Artur Malabarba <bruce.connor.am@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 <https://www.gnu.org/licenses/>.

;;; Code:

(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))
  `(with-temp-buffer
     (emacs-lisp-mode)
     (setq indent-tabs-mode nil)
     (insert "(a b")
     (save-excursion (insert " c d)"))
     ,@body
     (with-no-warnings (simple-test--buffer-substrings))))

\f
;;; `transpose-sexps'
(defmacro simple-test--transpositions (&rest body)
  (declare (indent 0)
           (debug t))
  `(with-temp-buffer
     (emacs-lisp-mode)
     (insert "(s1) (s2) (s3) (s4) (s5)")
     (backward-sexp 1)
     ,@body
     (simple-test--buffer-substrings)))

;;; Transposition with negative args (bug#20698, bug#21885)
(ert-deftest simple-transpose-subr ()
  (should (equal (simple-test--transpositions (transpose-sexps -1))
                 '("(s1) (s2) (s4)" . " (s3) (s5)")))
  (should (equal (simple-test--transpositions (transpose-sexps -2))
                 '("(s1) (s4)" . " (s2) (s3) (s5)"))))

\f
;;; `newline'
(ert-deftest newline ()
  (should-error (newline -1))
  (should (equal (simple-test--dummy-buffer (newline 1))
                 '("(a b\n" . " c d)")))
  (should (equal (simple-test--dummy-buffer
                   (electric-indent-mode -1)
                   (call-interactively #'newline))
                 '("(a b\n" . " c d)")))
  (should (equal (simple-test--dummy-buffer
                   (let ((current-prefix-arg 5))
                     (call-interactively #'newline)))
                 '("(a b\n\n\n\n\n" . " c d)")))
  (should (equal (simple-test--dummy-buffer (newline 5))
                 '("(a b\n\n\n\n\n" . " c d)")))
  (should (equal (simple-test--dummy-buffer
                   (forward-char 1)
                   (newline 1))
                 '("(a b \n" . "c d)"))))

(ert-deftest newline-indent ()
  (should (equal (simple-test--dummy-buffer
                   (electric-indent-local-mode 1)
                   (newline 1))
                 '("(a b\n" . " c d)")))
  (should (equal (simple-test--dummy-buffer
                   (electric-indent-local-mode 1)
                   (newline 1 'interactive))
                 '("(a b\n   " . "c d)")))
  (should (equal (simple-test--dummy-buffer
                   (electric-indent-local-mode 1)
                   (let ((current-prefix-arg nil))
                     (call-interactively #'newline)
                     (call-interactively #'newline)))
                 '("(a b\n\n   " . "c d)")))
  (should (equal (simple-test--dummy-buffer
                   (electric-indent-local-mode 1)
                   (newline 5 'interactive))
                 '("(a b\n\n\n\n\n   " . "c d)")))
  (should (equal (simple-test--dummy-buffer
                   (electric-indent-local-mode 1)
                   (let ((current-prefix-arg 5))
                     (call-interactively #'newline)))
                 '("(a b\n\n\n\n\n   " . "c d)")))
  (should (equal (simple-test--dummy-buffer
                   (forward-char 1)
                   (electric-indent-local-mode 1)
                   (newline 1 'interactive))
                 '("(a b\n   " . "c d)"))))

\f
;;; `open-line'
(ert-deftest open-line ()
  (should-error (open-line -1))
  (should-error (open-line))
  (should (equal (simple-test--dummy-buffer (open-line 1))
                 '("(a b" . "\n c d)")))
  (should (equal (simple-test--dummy-buffer
                   (electric-indent-mode -1)
                   (call-interactively #'open-line))
                 '("(a b" . "\n c d)")))
  (should (equal (simple-test--dummy-buffer
                   (let ((current-prefix-arg 5))
                     (call-interactively #'open-line)))
                 '("(a b" . "\n\n\n\n\n c d)")))
  (should (equal (simple-test--dummy-buffer (open-line 5))
                 '("(a b" . "\n\n\n\n\n c d)")))
  (should (equal (simple-test--dummy-buffer
                   (forward-char 1)
                   (open-line 1))
                 '("(a b " . "\nc d)"))))

(ert-deftest open-line-margin-and-prefix ()
  (should (equal (simple-test--dummy-buffer
                   (let ((left-margin 10))
                     (open-line 3)))
                 '("(a b" . "\n\n\n          c d)")))
  (should (equal (simple-test--dummy-buffer
                   (forward-line 0)
                   (let ((left-margin 2))
                     (open-line 1)))
                 '("  " . "\n  (a b c d)")))
  (should (equal (simple-test--dummy-buffer
                   (let ((fill-prefix "- - "))
                     (open-line 1)))
                 '("(a b" . "\n c d)")))
  (should (equal (simple-test--dummy-buffer
                   (forward-line 0)
                   (let ((fill-prefix "- - "))
                     (open-line 1)))
                 '("- - " . "\n(a b c d)"))))

;; For a while, from 24 Oct - 21 Nov 2015, `open-line' in the Emacs
;; development tree became sensitive to `electric-indent-mode', which
;; it had not been before.  This sensitivity was reverted for the
;; Emacs 25 release, so it could be discussed further (see thread
;; "Questioning the new behavior of `open-line'." on the Emacs Devel
;; mailing list, and bug #21884).
(ert-deftest open-line-indent ()
  (should (equal (simple-test--dummy-buffer
                   (electric-indent-local-mode 1)
                   (open-line 1))
                 '("(a b" . "\n c d)")))
  (should (equal (simple-test--dummy-buffer
                   (electric-indent-local-mode 1)
                   (open-line 1))
                 '("(a b" . "\n c d)")))
  (should (equal (simple-test--dummy-buffer
                   (electric-indent-local-mode 1)
                   (let ((current-prefix-arg nil))
                     (call-interactively #'open-line)
                     (call-interactively #'open-line)))
                 '("(a b" . "\n\n c d)")))
  (should (equal (simple-test--dummy-buffer
                   (electric-indent-local-mode 1)
                   (open-line 5))
                 '("(a b" . "\n\n\n\n\n c d)")))
  (should (equal (simple-test--dummy-buffer
                   (electric-indent-local-mode 1)
                   (let ((current-prefix-arg 5))
                     (call-interactively #'open-line)))
                 '("(a b" . "\n\n\n\n\n c d)")))
  (should (equal (simple-test--dummy-buffer
                   (forward-char 1)
                   (electric-indent-local-mode 1)
                   (open-line 1))
                 '("(a b " . "\nc d)"))))

;; From 24 Oct - 21 Nov 2015, `open-line' took a second argument
;; INTERACTIVE and ran `post-self-insert-hook' if the argument was
;; true.  This test tested that.  Currently, however, `open-line'
;; does not run `post-self-insert-hook' at all, so for now
;; this test just makes sure that it doesn't.
(ert-deftest open-line-hook ()
  (let* ((x 0)
         (inc (lambda () (setq x (1+ x)))))
    (simple-test--dummy-buffer
      (add-hook 'post-self-insert-hook inc nil 'local)
      (open-line 1))
    (should (= x 0))
    (simple-test--dummy-buffer
      (add-hook 'post-self-insert-hook inc nil 'local)
      (open-line 1))
    (should (= x 0))

    (unwind-protect
        (progn
          (add-hook 'post-self-insert-hook inc)
          (simple-test--dummy-buffer
            (open-line 1))
          (should (= x 0))
          (simple-test--dummy-buffer
            (open-line 10))
          (should (= x 0)))
      (remove-hook 'post-self-insert-hook inc))))

\f
;;; `delete-indentation'

(ert-deftest simple-delete-indentation-no-region ()
  "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 ()
  "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 ")))))

\f
;;; `delete-trailing-whitespace'
(ert-deftest simple-delete-trailing-whitespace--bug-21766 ()
  "Test bug#21766: delete-whitespace sometimes deletes non-whitespace."
  (defvar python-indent-guess-indent-offset)  ; to avoid a warning
  (let ((python (featurep 'python))
        (python-indent-guess-indent-offset nil)
        (delete-trailing-lines t))
    (unwind-protect
        (with-temp-buffer
          (python-mode)
          (insert (concat "query = \"\"\"WITH filtered AS \n"
                          "WHERE      \n"
                          "\"\"\".format(fv_)\n"
                          "\n"
                          "\n"))
          (delete-trailing-whitespace)
          (should (string-equal (buffer-string)
                                (concat "query = \"\"\"WITH filtered AS\n"
                                        "WHERE\n"
                                        "\"\"\".format(fv_)\n"))))
      ;; Let's clean up if running interactive
      (unless (or noninteractive python)
        (unload-feature 'python)))))

(ert-deftest simple-delete-trailing-whitespace--formfeeds ()
  "Test formfeeds are not deleted but whitespace past them is."
  (with-temp-buffer
    (with-syntax-table (make-syntax-table)
      (modify-syntax-entry ?\f " ")     ; Make sure \f is whitespace
      (insert " \f \n \f \f \n\nlast\n")
      (delete-trailing-whitespace)
      (should (string-equal (buffer-string) " \f\n \f \f\n\nlast\n"))
      (should (equal ?\s (char-syntax ?\f)))
      (should (equal ?\s (char-syntax ?\n))))))

\f
;;; undo auto-boundary tests
(ert-deftest undo-auto-boundary-timer ()
  (should
   undo-auto-current-boundary-timer))

(ert-deftest undo-auto--boundaries-added ()
  ;; The change in the buffer should have caused addition
  ;; to undo-auto--undoably-changed-buffers.
  (should
   (with-temp-buffer
     (setq buffer-undo-list nil)
     (insert "hello")
     (member (current-buffer) undo-auto--undoably-changed-buffers)))
  ;; The head of buffer-undo-list should be the insertion event, and
  ;; therefore not nil
  (should
   (with-temp-buffer
     (setq buffer-undo-list nil)
     (insert "hello")
     (car buffer-undo-list)))
  ;; Now the head of the buffer-undo-list should be a boundary and so
  ;; nil. We have to call auto-boundary explicitly because we are out
  ;; of the command loop
  (should-not
   (with-temp-buffer
     (setq buffer-undo-list nil)
     (insert "hello")
     (undo-auto--boundaries 'test))))

;; Test for a regression introduced by undo-auto--boundaries changes.
;; https://lists.gnu.org/r/emacs-devel/2015-11/msg01652.html
(defun undo-test-kill-c-a-then-undo ()
  (with-temp-buffer
    (switch-to-buffer (current-buffer))
    (setq buffer-undo-list nil)
    (insert "a\nb\n\c\n")
    (goto-char (point-max))
    ;; We use a keyboard macro because it adds undo events in the same
    ;; way as if a user were involved.
    (kmacro-call-macro nil nil nil
                       [left
                        ;; Delete "c"
                        backspace
                        left left left
                        ;; Delete "a"
                        backspace
                        ;; C-/ or undo
                        67108911
                        ])
    (point)))

(defun undo-test-point-after-forward-kill ()
  (with-temp-buffer
    (switch-to-buffer (current-buffer))
    (setq buffer-undo-list nil)
    (insert "kill word forward")
    ;; Move to word "word".
    (goto-char 6)
    (kmacro-call-macro nil nil nil
                       [
                        ;; kill-word
                        C-delete
                        ;; undo
                        67108911
                        ])
    (point)))

(ert-deftest undo-point-in-wrong-place ()
  (should
   ;; returns 5 with the bug
   (= 2
      (undo-test-kill-c-a-then-undo)))
  (should
   (= 6
      (undo-test-point-after-forward-kill))))

(defmacro simple-test-undo-with-switched-buffer (buffer &rest body)
  (declare (indent 1) (debug t))
  (let ((before-buffer (make-symbol "before-buffer")))
    `(let ((,before-buffer (current-buffer)))
       (unwind-protect
           (progn
             (switch-to-buffer ,buffer)
             ,@body)
         (switch-to-buffer ,before-buffer)))))

;; This tests for a regression in emacs 25.0 see bug #23632
(ert-deftest simple-test-undo-extra-boundary-in-tex ()
  (should
   (string=
    ""
    (simple-test-undo-with-switched-buffer
        "temp.tex"
      (latex-mode)
      ;; This macro calls `latex-insert-block'
      (execute-kbd-macro
       (read-kbd-macro
        "
C-c C-o			;; latex-insert-block
RET			;; newline
C-/                     ;; undo
"
        ))
      (buffer-substring-no-properties
       (point-min)
       (point-max))))))

(ert-deftest missing-record-point-in-undo ()
  "Check point is being restored correctly.

See Bug#21722."
  (should
   (= 5
      (with-temp-buffer
       (generate-new-buffer " *temp*")
       (emacs-lisp-mode)
       (setq buffer-undo-list nil)
       (insert "(progn (end-of-line) (insert \"hello\"))")
       (beginning-of-line)
       (forward-char 4)
       (undo-boundary)
       (eval-defun nil)
       (undo-boundary)
       (undo)
       (point)))))

\f
;;; `eval-expression'

(ert-deftest eval-expression-print-format-sym ()
  (with-temp-buffer
    (cl-letf (((symbol-function 'read--expression) (lambda (&rest _) t)))
      (let ((current-prefix-arg '(4)))
        (call-interactively #'eval-expression)
        (should (equal (buffer-string) "t"))))))

(ert-deftest eval-expression-print-format-sym-echo ()
  ;; We can only check the echo area when running interactive.
  (skip-unless (not noninteractive))
  (with-temp-buffer
    (cl-letf (((symbol-function 'read--expression) (lambda (&rest _) t)))
      (let ((current-prefix-arg nil))
        (message nil)
        (call-interactively #'eval-expression)
        (should (equal (current-message) "t"))))))

(ert-deftest eval-expression-print-format-small-int ()
  (with-temp-buffer
    (cl-letf (((symbol-function 'read--expression) (lambda (&rest _) ?A)))
      (let ((current-prefix-arg '(4)))
        (erase-buffer)
        (call-interactively #'eval-expression)
        (should (equal (buffer-string) "65")))
      (let ((current-prefix-arg 0))
        (erase-buffer)
        (call-interactively #'eval-expression)
        (should (equal (buffer-string) "65 (#o101, #x41, ?A)"))))))

(ert-deftest eval-expression-print-format-small-int-echo ()
  (skip-unless (not noninteractive))
  (with-temp-buffer
    (cl-letf (((symbol-function 'read--expression) (lambda (&rest _) ?A)))
      (let ((current-prefix-arg nil))
        (message nil)
        (call-interactively #'eval-expression)
        (should (equal (current-message) "65 (#o101, #x41, ?A)"))))))

(ert-deftest eval-expression-print-format-large-int ()
  (with-temp-buffer
    (cl-letf (((symbol-function 'read--expression) (lambda (&rest _) ?B))
              (eval-expression-print-maximum-character ?A))
      (let ((current-prefix-arg '(4)))
        (erase-buffer)
        (call-interactively #'eval-expression)
        (should (equal (buffer-string) "66")))
      (let ((current-prefix-arg 0))
        (erase-buffer)
        (call-interactively #'eval-expression)
        (should (equal (buffer-string) "66 (#o102, #x42)")))
      (let ((current-prefix-arg -1))
        (erase-buffer)
        (call-interactively #'eval-expression)
        (should (equal (buffer-string) "66 (#o102, #x42, ?B)"))))))

(ert-deftest eval-expression-print-format-large-int-echo ()
  (skip-unless (not noninteractive))
  (with-temp-buffer
    (cl-letf (((symbol-function 'read--expression) (lambda (&rest _) ?B))
              (eval-expression-print-maximum-character ?A))
      (let ((current-prefix-arg nil))
        (message nil)
        (call-interactively #'eval-expression)
        (should (equal (current-message) "66 (#o102, #x42)")))
      (let ((current-prefix-arg '-))
        (message nil)
        (call-interactively #'eval-expression)
        (should (equal (current-message) "66 (#o102, #x42, ?B)"))))))

(ert-deftest command-execute-prune-command-history ()
  "Check that Bug#31211 is fixed."
  (let ((history-length 1)
        (command-history ()))
    (dotimes (_ (1+ history-length))
      (command-execute "" t))
    (should (= (length command-history) history-length))))

\f
;;; `line-number-at-pos'

(ert-deftest line-number-at-pos-in-widen-buffer ()
  (let ((target-line 3))
    (with-temp-buffer
      (insert "a\nb\nc\nd\n")
      (goto-char (point-min))
      (forward-line (1- target-line))
      (should (equal (line-number-at-pos) target-line))
      (should (equal (line-number-at-pos nil t) target-line)))))

(ert-deftest line-number-at-pos-in-narrow-buffer ()
  (let ((target-line 3))
    (with-temp-buffer
      (insert "a\nb\nc\nd\n")
      (goto-char (point-min))
      (forward-line (1- target-line))
      (narrow-to-region (line-beginning-position) (line-end-position))
      (should (equal (line-number-at-pos) 1))
      (should (equal (line-number-at-pos nil t) target-line)))))

(ert-deftest line-number-at-pos-keeps-restriction ()
  (with-temp-buffer
    (insert "a\nb\nc\nd\n")
    (goto-char (point-min))
    (forward-line 2)
    (narrow-to-region (line-beginning-position) (line-end-position))
    (should (equal (line-number-at-pos) 1))
    (line-number-at-pos nil t)
    (should (equal (line-number-at-pos) 1))))

(ert-deftest line-number-at-pos-keeps-point ()
  (let (pos)
    (with-temp-buffer
      (insert "a\nb\nc\nd\n")
      (goto-char (point-min))
      (forward-line 2)
      (setq pos (point))
      (line-number-at-pos)
      (line-number-at-pos nil t)
      (should (equal pos (point))))))

(ert-deftest line-number-at-pos-when-passing-point ()
  (with-temp-buffer
    (insert "a\nb\nc\nd\n")
    (should (equal (line-number-at-pos 1) 1))
    (should (equal (line-number-at-pos 3) 2))
    (should (equal (line-number-at-pos 5) 3))
    (should (equal (line-number-at-pos 7) 4))))

\f
;;; Auto fill.

(ert-deftest auto-fill-mode-no-break-before-length-of-fill-prefix ()
  (with-temp-buffer
    (setq-local fill-prefix "   ")
    (set-fill-column 5)
    ;; Shouldn't break after 'foo' (3 characters) when the next
    ;; line is indented >= to that, that wouldn't result in shorter
    ;; lines.
    (insert "foo bar")
    (do-auto-fill)
    (should (string-equal (buffer-string) "foo bar"))))

\f
;;; Shell command.

(ert-deftest simple-tests-async-shell-command-30280 ()
  "Test for https://debbugs.gnu.org/30280 ."
  (let* ((async-shell-command-buffer 'new-buffer)
         (async-shell-command-display-buffer nil)
         (base "name")
         (first (buffer-name (generate-new-buffer base)))
         (second (generate-new-buffer-name base))
         ;; `save-window-excursion' doesn't restore frame configurations.
         (pop-up-frames nil)
         (inhibit-message t)
         (emacs (expand-file-name invocation-name invocation-directory)))
    (skip-unless (file-executable-p emacs))
    ;; Let `shell-command' create the buffer as needed.
    (kill-buffer first)
    (unwind-protect
        (save-window-excursion
          ;; One command has no output, the other does.
          ;; Removing the -eval argument also yields no output, but
          ;; then both commands exit simultaneously when
          ;; `accept-process-output' is called on the second command.
          (dolist (form '("(sleep-for 8)" "(message \"\")"))
            (async-shell-command (format "%s -Q -batch -eval '%s'"
                                         emacs form)
                                 first))
          ;; First command should neither have nor display output.
          (let* ((buffer (get-buffer first))
                 (process (get-buffer-process buffer)))
            (should (buffer-live-p buffer))
            (should process)
            (should (zerop (buffer-size buffer)))
            (should (not (get-buffer-window buffer))))
          ;; Second command should both have and display output.
          (let* ((buffer (get-buffer second))
                 (process (get-buffer-process buffer)))
            (should (buffer-live-p buffer))
            (should process)
            (should (accept-process-output process 4 nil t))
            (should (> (buffer-size buffer) 0))
            (should (get-buffer-window buffer))))
      (dolist (name (list first second))
        (let* ((buffer (get-buffer name))
               (process (and buffer (get-buffer-process buffer))))
          (when process (delete-process process))
          (when buffer (kill-buffer buffer)))))))

(provide 'simple-test)
;;; simple-test.el ends here

debug log:

solving cc2feebbef ...
found cc2feebbef in https://git.savannah.gnu.org/cgit/emacs.git

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).