-
Notifications
You must be signed in to change notification settings - Fork 311
/
yasnippet-tests.el
1788 lines (1630 loc) · 68.4 KB
/
yasnippet-tests.el
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
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
;;; yasnippet-tests.el --- some yasnippet tests -*- lexical-binding: t -*-
;; Copyright (C) 2012-2024 Free Software Foundation, Inc.
;; Author: João Távora <joaot@siscog.pt>
;; Keywords: emulations, convenience
;; 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/>.
;;; Commentary:
;; Test basic snippet mechanics and the loading system
;; To test this in emacs22 mac osx:
;; curl -L -O https://github.com/mirrors/emacs/raw/master/lisp/emacs-lisp/ert.el
;; curl -L -O https://github.com/mirrors/emacs/raw/master/lisp/emacs-lisp/ert-x.el
;; /usr/bin/emacs -nw -Q -L . -l yasnippet-tests.el --batch -e ert
;;; Code:
(require 'yasnippet)
(require 'ert)
(require 'ert-x)
(require 'cl-lib)
(require 'org)
;;; Helper macros and function
(defmacro yas-with-snippet-dirs (dirs &rest body)
(declare (indent defun) (debug t))
`(yas-call-with-snippet-dirs
,dirs #'(lambda () ,@body)))
(defun yas-should-expand (keys-and-expansions)
(dolist (key-and-expansion keys-and-expansions)
(yas-exit-all-snippets)
(erase-buffer)
(insert (car key-and-expansion))
(ert-simulate-command '(yas-expand))
(unless (string= (yas--buffer-contents) (cdr key-and-expansion))
(ert-fail (format "\"%s\" should have expanded to \"%s\" but got \"%s\""
(car key-and-expansion)
(cdr key-and-expansion)
(yas--buffer-contents)))))
(yas-exit-all-snippets))
(defun yas--collect-menu-items (menu-keymap)
(let ((yas--menu-items ()))
(map-keymap (lambda (_binding definition)
(when (eq (car-safe definition) 'menu-item)
(push definition yas--menu-items)))
menu-keymap)
yas--menu-items))
(defun yas-should-not-expand (keys)
(dolist (key keys)
(yas-exit-all-snippets)
(erase-buffer)
(insert key)
(ert-simulate-command '(yas-expand))
(unless (string= (yas--buffer-contents) key)
(ert-fail (format "\"%s\" should have stayed put, but instead expanded to \"%s\""
key
(yas--buffer-contents))))))
(defun yas-mock-insert (string)
(dotimes (i (length string))
(let ((last-command-event (aref string i)))
(ert-simulate-command '(self-insert-command 1)))))
(defun yas-mock-yank (string)
(let ((interprogram-paste-function (lambda () string)))
(ert-simulate-command '(yank nil))))
(defun yas--key-binding (key)
"Like `key-binding', but override `this-command-keys-vector'.
This lets `yas--maybe-expand-from-keymap-filter' work as expected."
(cl-letf (((symbol-function 'this-command-keys-vector)
(lambda () (cl-coerce key 'vector))))
(key-binding key)))
(defun yas-make-file-or-dirs (ass)
(let ((file-or-dir-name (car ass))
(content (cdr ass)))
(cond ((listp content)
(make-directory file-or-dir-name 'parents)
(let ((default-directory (concat default-directory "/" file-or-dir-name)))
(mapc #'yas-make-file-or-dirs content)))
((stringp content)
(with-temp-buffer
(insert content)
(write-region nil nil file-or-dir-name nil 'nomessage)))
(t
(message "[yas] oops don't know this content")))))
(defun yas-variables ()
(let ((syms))
(mapatoms #'(lambda (sym)
(if (and (string-match "^yas-[^/]" (symbol-name sym))
(boundp sym))
(push sym syms))))
syms))
(defun yas-call-with-saving-variables (fn)
(let* ((vars (yas-variables))
(saved-values (mapcar #'symbol-value vars)))
(unwind-protect
(funcall fn)
(cl-loop for var in vars
for saved in saved-values
do (unless (eq (symbol-value var) saved) ;Beware read-only vars!
(set var saved))))))
(defun yas-call-with-snippet-dirs (dirs fn)
(let* ((default-directory (make-temp-file "yasnippet-fixture" t))
(yas-snippet-dirs (mapcar (lambda (d) (expand-file-name (car d))) dirs)))
(with-temp-message ""
(unwind-protect
(progn
(mapc #'yas-make-file-or-dirs dirs)
(funcall fn))
(when (>= emacs-major-version 24)
(delete-directory default-directory 'recursive))))))
;;; Older emacsen
;;;
(unless (fboundp 'string-suffix-p)
;; introduced in Emacs 24.4
(defun string-suffix-p (suffix string &optional ignore-case)
"Return non-nil if SUFFIX is a suffix of STRING.
If IGNORE-CASE is non-nil, the comparison is done without paying
attention to case differences."
(let ((start-pos (- (length string) (length suffix))))
(and (>= start-pos 0)
(eq t (compare-strings suffix nil nil
string start-pos nil ignore-case))))))
;;; Snippet mechanics
(defun yas--buffer-contents ()
(buffer-substring-no-properties (point-min) (point-max)))
(ert-deftest field-navigation ()
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "${1:brother} from ${2:another} ${3:mother}")
(should (string= (yas--buffer-contents)
"brother from another mother"))
(should (looking-at "brother"))
(ert-simulate-command '(yas-next-field-or-maybe-expand))
(should (looking-at "another"))
(ert-simulate-command '(yas-next-field-or-maybe-expand))
(should (looking-at "mother"))
(ert-simulate-command '(yas-prev-field))
(should (looking-at "another"))
(ert-simulate-command '(yas-prev-field))
(should (looking-at "brother"))))
(ert-deftest simple-mirror ()
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "${1:brother} from another $1")
(should (string= (yas--buffer-contents)
"brother from another brother"))
(yas-mock-insert "bla")
(should (string= (yas--buffer-contents)
"bla from another bla"))))
(ert-deftest mirror-with-transformation ()
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "${1:brother} from another ${1:$(upcase yas-text)}")
(should (string= (yas--buffer-contents)
"brother from another BROTHER"))
(yas-mock-insert "bla")
(should (string= (yas--buffer-contents)
"bla from another BLA"))))
(ert-deftest yas-mirror-many-fields ()
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "${1:brother} and ${2:brother} are${1:$(if (string= (yas-field-value 1) (yas-field-value 2)) \" \" \" not \")}the same word")
(should (string= (yas--buffer-contents)
"brother and brother are the same word"))
(yas-mock-insert "bla")
(should (string= (yas--buffer-contents)
"bla and brother are not the same word"))
(ert-simulate-command '(yas-next-field-or-maybe-expand))
(yas-mock-insert "bla")
(should (string= (yas--buffer-contents)
"bla and bla are the same word"))))
(ert-deftest mirror-with-transformation-and-autofill ()
"Test interaction of autofill with mirror transforms"
(let ((words "one two three four five")
filled-words)
(with-temp-buffer
(c-mode) ; In `c-mode' filling comments works by narrowing.
(yas-minor-mode +1)
(setq fill-column 10)
(auto-fill-mode +1)
(yas-expand-snippet "/* $0\n */")
(yas-mock-insert words)
(setq filled-words (delete-and-extract-region (point-min) (point-max)))
(yas-expand-snippet "/* $1\n */\n$2$2")
(should (string= (yas--buffer-contents)
"/* \n */\n"))
(yas-mock-insert words)
(should (string= (yas--buffer-contents)
(concat filled-words "\n"))))))
(ert-deftest auto-fill-with-multiparagraph ()
"Test auto-fill protection on snippet spanning multiple paragraphs"
(with-temp-buffer
(yas-minor-mode +1)
(auto-fill-mode +1)
(yas-expand-snippet "foo$1\n\n$2bar")
(yas-mock-insert " ")
(ert-simulate-command '(yas-next-field-or-maybe-expand))
(should (looking-at "bar"))))
(ert-deftest primary-field-transformation ()
(with-temp-buffer
(yas-minor-mode 1)
(let ((snippet "${1:$$(upcase yas-text)}${1:$(concat \"bar\" yas-text)}"))
(yas-expand-snippet snippet)
(should (string= (yas--buffer-contents) "bar"))
(yas-mock-insert "foo")
(should (string= (yas--buffer-contents) "FOObarFOO")))))
(ert-deftest nested-placeholders-kill-superfield ()
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "brother from ${2:another ${3:mother}}!")
(should (string= (yas--buffer-contents)
"brother from another mother!"))
(yas-mock-insert "bla")
(should (string= (yas--buffer-contents)
"brother from bla!"))))
(ert-deftest nested-placeholders-use-subfield ()
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "brother from ${2:another ${3:mother}}!")
(ert-simulate-command '(yas-next-field-or-maybe-expand))
(yas-mock-insert "bla")
(should (string= (yas--buffer-contents)
"brother from another bla!"))))
(ert-deftest mirrors-adjacent-to-fields-with-nested-mirrors ()
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "<%= f.submit \"${1:Submit}\"${2:$(and (yas-text) \", :disable_with => '\")}${2:$1ing...}${2:$(and (yas-text) \"'\")} %>")
(should (string= (yas--buffer-contents)
"<%= f.submit \"Submit\", :disable_with => 'Submiting...' %>"))
(yas-mock-insert "Send")
(should (string= (yas--buffer-contents)
"<%= f.submit \"Send\", :disable_with => 'Sending...' %>"))))
(ert-deftest deep-nested-mirroring-issue-351 ()
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "${1:FOOOOOOO}${2:$1}${3:$2}${4:$3}")
(yas-mock-insert "abc")
(should (string= (yas--buffer-contents) "abcabcabcabc"))))
(ert-deftest delete-numberless-inner-snippet-issue-562 ()
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "${3:${test}bla}$0${2:ble}")
(ert-simulate-command '(yas-next-field-or-maybe-expand))
(should (looking-at "testblable"))
(ert-simulate-command '(yas-next-field-or-maybe-expand))
(ert-simulate-command '(yas-skip-and-clear-field))
(should (looking-at "ble"))
(should (null (yas-active-snippets)))))
(ert-deftest delete-nested-simple-field-issue-824 ()
"Test deleting a field with a nested simple field in it."
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "${3:so-$4and}$0${2:-so}")
(ert-simulate-command '(yas-next-field-or-maybe-expand))
(should (looking-at "so-and-so"))
(ert-simulate-command '(yas-skip-and-clear-or-delete-char))
(should (looking-at "-so"))
(should (null (yas-active-snippets)))))
(ert-deftest ignore-trailing-whitespace ()
(should (equal
(with-temp-buffer
(insert "# key: foo\n# --\nfoo")
(yas--parse-template))
(with-temp-buffer
(insert "# key: foo \n# --\nfoo")
(yas--parse-template)))))
;; (ert-deftest in-snippet-undo ()
;; (with-temp-buffer
;; (yas-minor-mode 1)
;; (yas-expand-snippet "brother from ${2:another ${3:mother}}!")
;; (ert-simulate-command '(yas-next-field-or-maybe-expand))
;; (yas-mock-insert "bla")
;; (ert-simulate-command '(undo))
;; (should (string= (yas--buffer-contents)
;; "brother from another mother!"))))
(ert-deftest undo-redo ()
"Check redoing of snippet undo."
(yas-with-snippet-dirs '((".emacs.d/snippets"
("emacs-lisp-mode" ("x" . "${1:one},and done"))))
(with-temp-buffer
(emacs-lisp-mode)
(yas-reload-all)
(yas-minor-mode 1)
(yas-expand-snippet "x$0")
(let ((pre-expand-string (buffer-string)))
(setq buffer-undo-list nil)
(ert-simulate-command '(yas-expand))
(push nil buffer-undo-list)
(ert-simulate-command '(yas-next-field)) ; $1 -> exit snippet.
(should (string-match-p "\\`one,and done" (buffer-string)))
(push nil buffer-undo-list)
(ert-simulate-command '(undo)) ; Revive snippet.
(ert-simulate-command '(undo)) ; Undo expansion.
(should (string= (buffer-string) pre-expand-string))
(ert-simulate-command '(move-end-of-line 1))
(push nil buffer-undo-list)
(ert-simulate-command '(undo)) ; Redo (re-expand snippet).
(should (string-match-p "\\`one,and done" (buffer-string)))))))
(ert-deftest undo-revive-and-do-again ()
"Check undo-revived snippet is properly ended."
;; See https://github.com/joaotavora/yasnippet/issues/1006.
(yas-with-snippet-dirs '((".emacs.d/snippets"
("emacs-lisp-mode" ("x" . "${1:one},and done"))))
(with-temp-buffer
(emacs-lisp-mode)
(yas-reload-all)
(yas-minor-mode 1)
(yas-expand-snippet "x$0")
(setq buffer-undo-list nil)
(ert-simulate-command '(yas-expand))
(push nil buffer-undo-list)
(ert-simulate-command '(yas-next-field)) ; $1 -> exit snippet.
(should (string-match-p "\\`one,and done" (buffer-string)))
(push nil buffer-undo-list)
(ert-simulate-command '(undo)) ; Revive snippet.
(yas-mock-insert "abc")
(ert-simulate-command '(yas-next-field)) ; $1 -> exit snippet again.
(should (string-match-p "\\`abc,and done" (buffer-string)))
;; We should have exited snippet and cleaned up any overlays.
(should-not (cl-some (lambda (o) (overlay-get o 'yas--snippet))
(overlays-in (point-min) (point-max)))))))
(defun yas-test-expand-and-undo (mode snippet-entry initial-contents)
(yas-with-snippet-dirs
`((".emacs.d/snippets" (,(symbol-name mode) ,snippet-entry)))
(with-temp-buffer
(funcall mode)
(yas-reload-all)
(yas-minor-mode 1)
(yas-expand-snippet initial-contents)
(let ((pre-expand-string (buffer-string)))
(setq buffer-undo-list ())
(ert-simulate-command '(yas-expand))
;; Need undo barrier, I think command loop puts it normally.
(push nil buffer-undo-list)
(ert-simulate-command '(undo))
(should (string= (buffer-string) pre-expand-string))))))
(ert-deftest undo-indentation-1 ()
"Check undoing works when only line of snippet is indented."
(let ((yas-also-auto-indent-first-line t))
(yas-test-expand-and-undo
'emacs-lisp-mode '("s" . "(setq $0)") "(let\n(while s$0")))
(ert-deftest undo-indentation-2 ()
"Check undoing works when only line of snippet is indented."
(let ((yas-also-auto-indent-first-line t)
(indent-tabs-mode nil))
(yas-test-expand-and-undo
'emacs-lisp-mode '("t" . "; TODO") "t$0")))
(ert-deftest undo-indentation-multiline-1 ()
"Check undoing works when 1st line of multi-line snippet is indented."
(let ((yas-also-auto-indent-first-line t)
(indent-tabs-mode nil))
(yas-test-expand-and-undo
'js-mode '("if" . "if ($1) {\n\n}\n")
"if$0\nabc = 123456789 + abcdef;")))
(ert-deftest undo-indentation-multiline-2 ()
"Check undoing works when 2nd line of multi-line snippet is indented."
(let ((yas-also-auto-indent-first-line t)
(indent-tabs-mode nil))
(yas-test-expand-and-undo
'js-mode '("if" . "if (true) {\n${1:foo};\n}\n")
"if$0\nabc = 123456789 + abcdef;")))
(ert-deftest dont-clear-on-partial-deletion-issue-515 ()
"Ensure fields are not cleared when user doesn't really mean to."
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "my ${1:kid brother} from another ${2:mother}")
(ert-simulate-command '(kill-word 1))
(ert-simulate-command '(delete-char 1))
(should (string= (yas--buffer-contents)
"my brother from another mother"))
(should (looking-at "brother"))
(ert-simulate-command '(yas-next-field))
(should (looking-at "mother"))
(ert-simulate-command '(yas-prev-field))
(should (looking-at "brother"))))
(ert-deftest do-clear-on-yank-issue-515 ()
"A yank should clear an unmodified field."
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "my ${1:kid brother} from another ${2:mother}")
(yas-mock-yank "little sibling")
(should (string= (yas--buffer-contents)
"my little sibling from another mother"))
(ert-simulate-command '(yas-next-field))
(ert-simulate-command '(yas-prev-field))
(should (looking-at "little sibling"))))
(ert-deftest basic-indentation ()
(with-temp-buffer
(ruby-mode)
(yas-minor-mode 1)
(set (make-local-variable 'yas-indent-line) 'auto)
(set (make-local-variable 'yas-also-auto-indent-first-line) t)
(yas-expand-snippet "def ${1:method}${2:(${3:args})}\n$0\nend")
;; Note that empty line is not indented.
(should (string= "def method(args)
end" (buffer-string)))
(cl-loop repeat 3 do (ert-simulate-command '(yas-next-field)))
(yas-mock-insert (make-string (random 5) ?\ )) ; purposedly mess up indentation
(yas-expand-snippet "class << ${self}\n $0\nend")
(ert-simulate-command '(yas-next-field))
(should (string= "def method(args)
class << self
end
end" (buffer-string)))
(should (= 4 (current-column)))))
(ert-deftest yas-also-indent-empty-lines ()
"Respect `yas-also-indent-empty-lines' setting."
(with-temp-buffer
(ruby-mode)
(yas-minor-mode 1)
(set (make-local-variable 'yas-indent-line) 'auto)
(set (make-local-variable 'yas-also-auto-indent-first-line) t)
(set (make-local-variable 'yas-also-indent-empty-lines) t)
(yas-expand-snippet "def foo\n\nend")
(should (string= "def foo\n \nend" (buffer-string)))
;; Test that it keeps working without setting
;; `yas-also-auto-indent-first-line'.
(setq yas-also-auto-indent-first-line nil)
(erase-buffer)
(yas-expand-snippet "def foo\n\nend")
(should (string= "def foo\n \nend" (buffer-string)))))
(ert-deftest yas-indent-first-line ()
(with-temp-buffer
(ruby-mode)
(yas-minor-mode 1)
(set (make-local-variable 'yas-indent-line) 'auto)
(set (make-local-variable 'yas-also-auto-indent-first-line) nil)
(set (make-local-variable 'yas-also-indent-empty-lines) nil)
(yas-expand-snippet "def foo\n$0\nend\n")
;; First (and only) line should not indent.
(yas-expand-snippet "#not indented")
(should (equal "def foo\n#not indented\nend\n" (buffer-string)))))
(ert-deftest yas-indent-first-line-fixed ()
(with-temp-buffer
(ruby-mode)
(yas-minor-mode 1)
(set (make-local-variable 'yas-indent-line) 'fixed)
(set (make-local-variable 'yas-also-auto-indent-first-line) nil)
(set (make-local-variable 'yas-also-indent-empty-lines) nil)
(yas-expand-snippet " def foo\n $0\n end\n")
;; First (and only) line should not indent.
(yas-expand-snippet "#not more indented")
(should (equal " def foo\n #not more indented\n end\n" (buffer-string)))))
(ert-deftest indentation-markers ()
"Test a snippet with indentation markers (`$<')."
(with-temp-buffer
(ruby-mode)
(yas-minor-mode 1)
(set (make-local-variable 'yas-indent-line) nil)
(yas-expand-snippet "def ${1:method}${2:(${3:args})}\n$>Indent\nNo indent\\$>\nend")
(should (string= "def method(args)
Indent
No indent$>
end" (buffer-string)))))
(ert-deftest single-line-multi-mirror-indentation ()
"Make sure not to indent with multiple mirrors per line."
;; See also Github issue #712.
(with-temp-buffer
(text-mode)
(yas-minor-mode 1)
(yas-expand-snippet "${1:XXXXX} --------
$1 ---------------- $1 ----
$1 ------------------------")
(should (string= (yas--buffer-contents) "XXXXX --------
XXXXX ---------------- XXXXX ----
XXXXX ------------------------"))))
(ert-deftest single-line-multi-mirror-indentation-2 ()
"Like `single-line-multi-mirror-indentation' but 2 mirrors interleaved."
;; See also Github issue #768.
(with-temp-buffer
(c-mode)
(yas-minor-mode 1)
(yas-expand-snippet "${1:one} ${2:two};\n$1 $2_;\n$2 $1_;\n")
(should (string= (yas--buffer-contents)
"one two;\none two_;\ntwo one_;\n"))))
(ert-deftest indent-org-property ()
"Handling of `org-mode' property indentation, see `org-property-format'."
;; This is an interesting case because `org-indent-line' calls
;; `replace-match' for properties.
(with-temp-buffer
(org-mode)
(yas-minor-mode +1)
(yas-expand-snippet "* Test ${1:test}\n:PROPERTIES:\n:ID: $1-after\n:END:")
(yas-mock-insert "foo bar")
(ert-simulate-command '(yas-next-field))
(goto-char (point-min))
;; The default value of `org-adapt-indentation' changed between Org-mode 9.4
;; and 9.5, so force a specific value.
(let* ((org-adapt-indentation nil)
(expected (with-temp-buffer
(insert (format (concat "* Test foo bar\n"
org-property-format "\n"
org-property-format "\n"
org-property-format)
":PROPERTIES:" ""
":ID:" "foo bar-after"
":END:" ""))
(delete-trailing-whitespace)
(buffer-string))))
;; Some org-mode versions leave trailing whitespace, some don't.
(delete-trailing-whitespace)
(should (equal expected (buffer-string))))))
(ert-deftest indent-cc-mode ()
"Handling of cc-mode's indentation."
;; This is an interesting case because cc-mode deletes all the
;; indentation before recreating it.
(with-temp-buffer
(c++-mode)
(yas-minor-mode +1)
(yas-expand-snippet "\
int foo()
{
if ($1) {
delete $1;
$1 = 0;
}
}")
(yas-mock-insert "var")
(should (string= "\
int foo()
{
if (var) {
delete var;
var = 0;
}
}" (buffer-string)))))
(ert-deftest indent-cc-mode-2 ()
"Handling of cc-mode's preprocessor indentation."
(with-temp-buffer
(c-mode)
(yas-minor-mode +1)
(yas-expand-snippet "\
#ifndef `\"FOO\"`
#define FOO
#endif
")
(should (string= "\
#ifndef FOO
#define FOO
#endif
" (buffer-substring-no-properties (point-min) (point-max))))))
(ert-deftest indent-snippet-mode ()
"Handling of snippet-mode indentation."
;; This is an interesting case because newlines match [[:space:]] in
;; snippet-mode.
(with-temp-buffer
(snippet-mode)
(yas-minor-mode +1)
(yas-expand-snippet "# -*- mode: snippet -*-\n# name: $1\n# key: $1\n# --\n")
(yas-mock-insert "foo")
(should (string= "# -*- mode: snippet -*-\n# name: foo\n# key: foo\n# --\n"
(buffer-string)))))
(ert-deftest indent-mirrors-on-update ()
"Check that mirrors are always kept indented."
(with-temp-buffer
(ruby-mode)
(yas-minor-mode 1)
(yas-expand-snippet "def $1\n$1\nend")
(yas-mock-insert "xxx")
;; Assuming 2 space indent.
(should (string= "def xxx\n xxx\nend" (buffer-string)))))
(defun yas-test-delete-and-insert-command (beg end new)
"Simulate a completion command (similar to company-mode)."
(interactive "r\ns")
;; Simulate a completion command (like what company-mode does)
;; which deletes the "xxx" and then replaces it with something
;; else.
(delete-region beg end)
(insert new))
(ert-deftest indent-mirrors-on-complex-update ()
"Don't get messed up by command that deletes and then inserts."
(with-temp-buffer
(ruby-mode)
(yas-minor-mode 1)
(yas-expand-snippet "def foo\n ${1:slice} = append($1)\nend")
(yas-mock-insert "xxx")
(ert-simulate-command `(yas-test-delete-and-insert-command
,(- (point) 3) ,(point) ,"yyy"))
;; Assuming 2 space indent.
(should (string= "def foo\n yyy = append(yyy)\nend" (buffer-string)))))
(ert-deftest snippet-with-multiline-mirrors-issue-665 ()
"In issue 665, a multi-line mirror is attempted."
(with-temp-buffer
(ruby-mode)
(yas-minor-mode 1)
(yas-expand-snippet "def initialize(${1:params})\n$2${1:$(
mapconcat #'(lambda (arg)
(format \"@%s = %s\" arg arg))
(split-string yas-text \", \")
\"\n\")}\nend")
(yas-mock-insert "bla, ble, bli")
(ert-simulate-command '(yas-next-field))
(let ((expected (mapconcat #'identity
'("@bla = bla"
;; assume ruby is always indented to 2 spaces
" @ble = ble"
" @bli = bli")
"\n")))
(should (looking-at expected))
(yas-mock-insert "blo")
(ert-simulate-command '(yas-prev-field))
(ert-simulate-command '(yas-next-field))
(should (looking-at (concat "blo" expected))))))
(defmacro yas-saving-variables (&rest body)
(declare (debug t))
`(yas-call-with-saving-variables #'(lambda () ,@body)))
(ert-deftest auto-next-field ()
"Automatically exit a field after evaluating its transform."
(with-temp-buffer
(yas-saving-variables
(yas-with-snippet-dirs
`((".emacs.d/snippets"
("ruby-mode" ("snip" . ,(concat "foo ${1:$$"
(prin1-to-string '(yas-auto-next
(yas-choose-value
"bar" "foo")))
"} ${2:$$"
(prin1-to-string '(yas-auto-next
(yas-choose-value
"too" "foo")))
"} baz ${3:quinn} quinn")))))
(yas-reload-all)
(ruby-mode)
(yas-minor-mode 1)
(set (make-local-variable 'yas-prompt-functions) `(yas-no-prompt))
(yas-mock-insert "snip")
(ert-simulate-command '(yas-expand))
(yas-mock-insert "quux")
(should (equal "foo bar too baz quux quinn" (buffer-string)))))))
;;; Snippet expansion and character escaping
;; Thanks to @zw963 (Billy) for the testing
;;;
(ert-deftest escape-dollar ()
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "bla\\${1:bla}ble")
(should (string= (yas--buffer-contents) "bla${1:bla}ble"))))
(ert-deftest escape-closing-brace ()
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "bla${1:bla\\}}ble")
(should (string= (yas--buffer-contents) "blabla}ble"))
(should (string= (yas-field-value 1) "bla}"))))
(ert-deftest escape-backslashes ()
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "bla\\ble")
(should (string= (yas--buffer-contents) "bla\\ble"))))
(ert-deftest escape-backquotes ()
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "bla`(upcase \"foo\\`bar\")`ble")
(should (string= (yas--buffer-contents) "blaFOO`BARble"))))
(ert-deftest escape-some-elisp-with-strings ()
"elisp with strings and unbalance parens inside it"
(with-temp-buffer
(yas-minor-mode 1)
;; The rules here is: to output a literal `"' you need to escape
;; it with one backslash. You don't need to escape them in
;; embedded elisp.
(yas-expand-snippet "soon \\\"`(concat (upcase \"(my arms\")\"\\\" were all around her\")`")
(should (string= (yas--buffer-contents) "soon \"(MY ARMS\" were all around her"))))
(ert-deftest escape-some-elisp-with-backslashes ()
(with-temp-buffer
(yas-minor-mode 1)
;; And the rule here is: to output a literal `\' inside a string
;; inside embedded elisp you need a total of six `\'
(yas-expand-snippet "bla`(upcase \"hey\\\\\\yo\")`ble")
(should (string= (yas--buffer-contents) "blaHEY\\YOble"))))
(ert-deftest be-careful-when-escaping-in-yas-selected-text ()
(with-temp-buffer
(yas-minor-mode 1)
(let ((yas-selected-text "He\\\\o world!"))
(yas-expand-snippet "Look ma! `(yas-selected-text)`")
(should (string= (yas--buffer-contents) "Look ma! He\\\\o world!")))
(yas-exit-all-snippets)
(erase-buffer)
(let ((yas-selected-text "He\"o world!"))
(yas-expand-snippet "Look ma! `(yas-selected-text)`")
(should (string= (yas--buffer-contents) "Look ma! He\"o world!")))
(yas-exit-all-snippets)
(erase-buffer)
(let ((yas-selected-text "He\"\)\\o world!"))
(yas-expand-snippet "Look ma! `(yas-selected-text)`")
(should (string= (yas--buffer-contents) "Look ma! He\"\)\\o world!")))
(yas-exit-all-snippets)
(erase-buffer)))
(ert-deftest be-careful-when-escaping-in-yas-selected-text-2 ()
(with-temp-buffer
(yas-minor-mode 1)
(let ((yas-selected-text "He)}o world!"))
(yas-expand-snippet "Look ma! ${1:`(yas-selected-text)`} OK?")
(should (string= (yas--buffer-contents) "Look ma! He)}o world! OK?")))))
(ert-deftest escaping-for-lsp-style-snippet-syntax ()
"See Github #979."
(should
(string= (with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet
"Printf(${1:format string}, ${2:args ...interface{\\}})${0}")
(yas--buffer-contents))
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet
"Printf(${1:format string}, ${2:args ...interface\\{\\}})${0}")
(yas--buffer-contents)))))
(ert-deftest insert-snippet-with-backslashes-in-active-field ()
;; This test case fails if `yas--inhibit-overlay-hooks' is not bound
;; in `yas-expand-snippet' (see Github #844).
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "${1:$$(if (not yas-modified-p) \"a\")}")
(yas-expand-snippet "\\\\alpha")))
(ert-deftest expand-with-unused-yas-selected-text ()
(with-temp-buffer
(yas-with-snippet-dirs
'((".emacs.d/snippets"
("emacs-lisp-mode"
("foo" . "expanded `yas-selected-text`foo"))))
(yas-reload-all)
(emacs-lisp-mode)
(yas-minor-mode +1)
(insert "foo")
(ert-simulate-command '(yas-expand))
(should (equal (buffer-string) "expanded foo")))))
(ert-deftest yas-expand-command-snippet ()
(with-temp-buffer
(yas-with-snippet-dirs
'((".emacs.d/snippets"
("emacs-lisp-mode"
("foo" . "\
# type: command
# --
\(insert \"expanded foo\")"))))
(yas-reload-all)
(emacs-lisp-mode)
(yas-minor-mode +1)
(insert "foo")
(ert-simulate-command '(yas-expand))
(should (equal (buffer-string) "expanded foo")))))
(ert-deftest example-for-issue-271 ()
(with-temp-buffer
(yas-minor-mode 1)
(let ((yas-selected-text "aaa")
(snippet "if ${1:condition}\n`yas-selected-text`\nelse\n$3\nend"))
(yas-expand-snippet snippet)
(yas-next-field)
(yas-mock-insert "bbb")
(should (string= (yas--buffer-contents) "if condition\naaa\nelse\nbbb\nend")))))
(ert-deftest yas-no-memory-of-bad-snippet ()
"Expanding an incorrect snippet should not influence future expansions."
;; See https://github.com/joaotavora/yasnippet/issues/800.
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "```foo\n\n```")
(erase-buffer) ; Bad snippet may leave wrong text.
;; But expanding the corrected snippet should work fine.
(yas-expand-snippet "\\`\\`\\`foo\n\n\\`\\`\\`")
(should (equal (buffer-string) "```foo\n\n```"))))
(defmacro yas--with-font-locked-temp-buffer (&rest body)
"Like `with-temp-buffer', but ensure `font-lock-mode'."
;; NOTE: Replace all uses of this with `font-lock-ensure' when we
;; drop support for Emacs 24.
(declare (indent 0) (debug t))
(let ((temp-buffer (make-symbol "temp-buffer")))
;; NOTE: buffer name must not start with a space, otherwise
;; `font-lock-mode' doesn't turn on.
`(let ((,temp-buffer (generate-new-buffer "*yas-temp*")))
(with-current-buffer ,temp-buffer
;; pretend we're interactive so `font-lock-mode' turns on
(let ((noninteractive nil)
;; turn on font locking after major mode change
(change-major-mode-after-body-hook #'font-lock-mode))
(unwind-protect
(progn (require 'font-lock)
;; turn on font locking before major mode change
(font-lock-mode +1)
,@body)
(and (buffer-name ,temp-buffer)
(kill-buffer ,temp-buffer))))))))
(ert-deftest example-for-issue-474 ()
;; This issue only reproduces in Emacs 24.3, most likely due to some
;; bug in the cc-mode included with that Emacs version.
(yas--with-font-locked-temp-buffer
(c-mode)
(yas-minor-mode 1)
(insert "#include <foo>\n")
(let ((yas-good-grace nil)) (yas-expand-snippet "`\"TODO: \"`"))
(should (string= (yas--buffer-contents) "#include <foo>\nTODO: "))))
(ert-deftest example-for-issue-404 ()
(yas--with-font-locked-temp-buffer
(c++-mode)
(yas-minor-mode 1)
(insert "#include <foo>\n")
(let ((yas-good-grace nil)) (yas-expand-snippet "main"))
(should (string= (yas--buffer-contents) "#include <foo>\nmain"))))
(ert-deftest example-for-issue-404-c-mode ()
(yas--with-font-locked-temp-buffer
(c-mode)
(yas-minor-mode 1)
(insert "#include <foo>\n")
(let ((yas-good-grace nil)) (yas-expand-snippet "main"))
(should (string= (yas--buffer-contents) "#include <foo>\nmain"))))
(ert-deftest middle-of-buffer-snippet-insertion ()
(with-temp-buffer
(yas-minor-mode 1)
(insert "beginning")
(save-excursion (insert "end"))
(yas-expand-snippet "-middle-")
(should (string= (yas--buffer-contents) "beginning-middle-end"))))
(ert-deftest another-example-for-issue-271 ()
;; expect this to fail in batch mode since `region-active-p' doesn't
;; used by `yas-expand-snippet' doesn't make sense in that context.
;;
:expected-result (if noninteractive
:failed
:passed)
(with-temp-buffer
(yas-minor-mode 1)
(let ((snippet "\\${${1:1}:`yas-selected-text`}"))
(insert "aaabbbccc")
(set-mark 4)
(goto-char 7)
(yas-expand-snippet snippet)
(should (string= (yas--buffer-contents) "aaa${1:bbb}ccc")))))
(ert-deftest string-match-with-subregexp-in-embedded-elisp ()
(with-temp-buffer
(yas-minor-mode 1)
;; the rule here is: To use regexps in embedded `(elisp)` expressions, write
;; it like you would normal elisp, i.e. no need to escape the backslashes.
(let ((snippet "`(if (string-match \"foo\\\\(ba+r\\\\)foo\" \"foobaaaaaaaaaarfoo\")
\"ok\"
\"fail\")`"))
(yas-expand-snippet snippet))
(should (string= (yas--buffer-contents) "ok"))))
(ert-deftest string-match-with-subregexp-in-mirror-transformations ()
(with-temp-buffer
(yas-minor-mode 1)
;; the rule here is: To use regexps in embedded `(elisp)` expressions,
;; escape backslashes once, i.e. to use \\( \\) constructs, write \\\\( \\\\).
(let ((snippet "$1${1:$(if (string-match \"foo\\\\\\\\(ba+r\\\\\\\\)baz\" yas-text)
\"ok\"
\"fail\")}"))
(yas-expand-snippet snippet)
(should (string= (yas--buffer-contents) "fail"))
(yas-mock-insert "foobaaar")
(should (string= (yas--buffer-contents) "foobaaarfail"))
(yas-mock-insert "baz")
(should (string= (yas--buffer-contents) "foobaaarbazok")))))
(ert-deftest yas-escaping-close-brace ()
"Close braces may be escaped with braces, reduction from eglot issue.
See https://github.com/joaotavora/eglot/issues/336."
(with-temp-buffer
(yas-minor-mode +1)
;; NOTE: put a period at the end to avoid the bug tested by
;; `protection-overlay-no-cheating'.
(yas-expand-snippet "${1:one{\\}}, ${2:two{\\}}.")
(yas-next-field)
(yas-next-field)
(should (string= (buffer-string) "one{}, two{}."))))
;;; Misc tests
;;;
(ert-deftest protection-overlay-no-cheating ()
"Protection overlays at the very end of the buffer are dealt
with by cheatingly inserting a newline!
TODO: correct this bug!"
:expected-result :failed
(with-temp-buffer
(yas-minor-mode 1)
(yas-expand-snippet "${2:brother} from another ${1:mother}")
(should (string= (yas--buffer-contents)
"brother from another mother") ;; no newline should be here!
)))
(defvar yas-tests--ran-exit-hook nil)
(ert-deftest snippet-exit-hooks ()
(with-temp-buffer
(yas-saving-variables
(let ((yas-tests--ran-exit-hook nil)
(yas-triggers-in-field t))
(yas-with-snippet-dirs
'((".emacs.d/snippets"
("emacs-lisp-mode"
("foo" . "\
# expand-env: ((yas-after-exit-snippet-hook (lambda () (setq yas-tests--ran-exit-hook t))))
# --
FOO ${1:f1} ${2:f2}")
("sub" . "\
# expand-env: ((yas-after-exit-snippet-hook (lambda () (setq yas-tests--ran-exit-hook 'sub))))
# --
SUB"))))