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
|
;;; dnd-tests.el --- Tests for window system independent DND support -*- lexical-binding: t; -*-
;; Copyright (C) 2022-2025 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Tests for stuff in dnd.el that doesn't require a window system.
;; The drag API tests only check the behavior of the simplified drag
;; APIs in dnd.el. Actual drags are not performed during the
;; automated testing process (make check), but some of the tests can
;; also be run under X.
;;; Code:
(require 'dnd)
(require 'cl-lib)
(require 'tramp)
(require 'select)
(require 'ert-x)
(require 'browse-url)
(defvar dnd-tests-selection-table nil
"Alist of selection names to their values.")
(defvar x-treat-local-requests-remotely)
(defvar x-dnd-preserve-selection-data)
;; Define some replacements for functions used by the drag-and-drop
;; code on X when running under something else.
(unless (eq window-system 'x)
;; Substitute for x-begin-drag, which isn't present on all systems.
(defalias 'x-begin-drag
(lambda (_targets &optional action frame &rest _)
;; Verify that frame is either nil or a valid frame.
(when (and frame (not (frame-live-p frame)))
(signal 'wrong-type-argument frame))
;; Verify that the action is valid and pretend the drag succeeded
;; (by returning the action).
(cl-ecase action
(XdndActionCopy action)
(XdndActionMove action)
(XdndActionLink action)
;; These two are not technically valid, but x-begin-drag accepts
;; them anyway.
(XdndActionPrivate action)
(XdndActionAsk 'XdndActionPrivate))))
;; This doesn't work during tests.
(defalias 'gui-set-selection
(lambda (type data)
(or (gui--valid-simple-selection-p data)
(and (vectorp data)
(let ((valid t))
(dotimes (i (length data))
(or (gui--valid-simple-selection-p (aref data i))
(setq valid nil)))
valid))
(signal 'error (list "invalid selection" data)))
(setf (alist-get type dnd-tests-selection-table) data))))
(declare-function x-get-selection-internal "xselect.c")
(defun dnd-tests-verify-selection-data (type)
"Return the data of the drag-and-drop selection converted to TYPE."
(if (eq window-system 'x)
(let ((x-treat-local-requests-remotely t))
(x-get-selection-internal 'XdndSelection type))
(let* ((basic-value (cdr (assq 'XdndSelection
dnd-tests-selection-table)))
(local-value (if (stringp basic-value)
(or (get-text-property 0 type basic-value)
basic-value)
basic-value))
(converter-list (cdr (assq type selection-converter-alist)))
(converter (if (consp converter-list)
(cdr converter-list)
converter-list)))
(if (and local-value converter)
(funcall converter 'XdndSelection type local-value)
(error "No selection converter or local value: %s" type)))))
(defun dnd-tests-remote-accessible-p ()
"Return if a test involving remote files can proceed."
(ignore-errors
(and
(file-remote-p ert-remote-temporary-file-directory)
(file-directory-p ert-remote-temporary-file-directory)
(file-writable-p ert-remote-temporary-file-directory))))
(defun dnd-tests-make-temp-name ()
"Return a temporary remote file name for test.
The temporary file is not created."
(expand-file-name (make-temp-name "dnd-test-remote")
ert-remote-temporary-file-directory))
(defun dnd-tests-parse-tt-netfile (netfile)
"Parse NETFILE and return its components.
NETFILE should be a canonicalized ToolTalk file name.
Return a list of its hostname, real path, and local path."
(save-match-data
(when (string-match (concat "HOST=0-\\([[:digit:]]+\\),RPATH=\\([[:digit:]]+\\)-"
"\\([[:digit:]]+\\),LPATH=\\([[:digit:]]+\\)-"
"\\([[:digit:]]+\\)\\(:\\)")
netfile)
(let ((beg (match-end 6)))
(list (substring netfile beg
(+ beg 1
(string-to-number (match-string 1 netfile))))
(substring netfile
(+ beg
(string-to-number (match-string 2 netfile)))
(+ beg 1
(string-to-number (match-string 3 netfile))))
(substring netfile
(+ beg
(string-to-number (match-string 4 netfile)))
(+ beg 1
(string-to-number (match-string 5 netfile)))))))))
(defun dnd-tests-extract-selection-data (selection expect-cons)
"Return the selection data in SELECTION.
SELECTION can either be the value of `gui-get-selection', or the
return value of a selection converter.
If EXPECT-CONS, then expect SELECTION to be a cons (when not
running under X).
This function only tries to handle strings."
(when (and expect-cons (not (eq window-system 'x)))
(should (and (consp selection)
(stringp (cdr selection)))))
(if (stringp selection)
selection
(cdr selection)))
(ert-deftest dnd-tests-begin-text-drag ()
;; When running this test under X, please make sure to drop onto a
;; program with reasonably correct behavior, such as dtpad, gedit,
;; or Mozilla.
;; ASCII Latin-1 UTF-8
(let ((test-text "hello, everyone! sæl öllsömul! всем привет")
(x-dnd-preserve-selection-data t))
;; Verify that dragging works.
(should (eq (dnd-begin-text-drag test-text) 'copy))
(should (eq (dnd-begin-text-drag test-text nil 'move) 'move))
;; Verify that the important data types are converted correctly.
(let ((string-data (dnd-tests-verify-selection-data 'STRING)))
;; Check that the Latin-1 target is converted correctly.
(should (equal (dnd-tests-extract-selection-data string-data t)
(encode-coding-string test-text
'iso-8859-1))))
;; And that UTF8_STRING and the Xdnd UTF8 string are as well.
(let* ((string-data (dnd-tests-verify-selection-data
'UTF8_STRING))
(string-data-1 (dnd-tests-verify-selection-data
'text/plain\;charset=utf-8))
(extracted-1 (dnd-tests-extract-selection-data string-data-1 t))
(extracted (dnd-tests-extract-selection-data string-data t)))
(should (and (stringp extracted) (stringp extracted-1)))
(should (equal extracted extracted-1)))
;; Now check text/plain.
(let ((string-data (dnd-tests-verify-selection-data
'text/plain)))
(should (equal (dnd-tests-extract-selection-data string-data t)
(encode-coding-string test-text 'ascii))))))
(ert-deftest dnd-tests-begin-file-drag ()
;; These tests also involve handling remote file names.
(skip-unless (and (dnd-tests-remote-accessible-p)
;; TODO: make these tests work under X.
(not (eq window-system 'x))))
(let ((normal-temp-file (expand-file-name (make-temp-name "dnd-test")
temporary-file-directory))
(normal-multibyte-file (expand-file-name
(make-temp-name "тест-на-перетаскивание")
temporary-file-directory))
(remote-temp-file (dnd-tests-make-temp-name))
(x-dnd-preserve-selection-data t))
;; Touch those files if they don't exist.
(unless (file-exists-p normal-temp-file)
(write-region "" 0 normal-temp-file))
(unless (file-exists-p normal-multibyte-file)
(write-region "" 0 normal-multibyte-file))
(unless (file-exists-p remote-temp-file)
(write-region "" 0 remote-temp-file))
(unwind-protect
(progn
;; Now test dragging a normal file.
(should (eq (dnd-begin-file-drag normal-temp-file) 'copy))
;; Test that the selection data is correct.
(let ((uri-list-data (cdr (dnd-tests-verify-selection-data 'text/uri-list)))
(username-data (dnd-tests-verify-selection-data 'text/x-xdnd-username))
(file-name-data (cdr (dnd-tests-verify-selection-data 'FILE_NAME)))
(host-name-data (cdr (dnd-tests-verify-selection-data 'HOST_NAME)))
(netfile-data (cdr (dnd-tests-verify-selection-data '_DT_NETFILE))))
;; Check if the URI list is formatted correctly.
(let* ((split-uri-list (split-string uri-list-data "[\0\r\n]" t))
(decoded (dnd-get-local-file-name (car split-uri-list))))
(should (equal decoded normal-temp-file)))
;; Test that the username reported is correct.
(should (equal username-data (user-real-login-name)))
;; Test that the file name data is correct.
(let* ((split-file-names (split-string file-name-data "\0"))
(file-name (car split-file-names)))
;; Make sure there are no extra leading or trailing NULL bytes.
(should (and split-file-names (null (cdr split-file-names))))
;; Make sure the file name is encoded correctly;
(should-not (multibyte-string-p file-name))
;; Make sure decoding the file name results in the
;; originals.
(should (equal (decode-coding-string file-name
(or file-name-coding-system
default-file-name-coding-system))
normal-temp-file))
;; Also make sure the hostname is correct.
(should (equal host-name-data (system-name))))
;; Check that the netfile hostname, rpath and lpath are correct.
(let ((parsed (dnd-tests-parse-tt-netfile netfile-data))
(filename (encode-coding-string normal-temp-file
(or file-name-coding-system
default-file-name-coding-system))))
(should (equal (nth 0 parsed) (system-name)))
(should (equal (nth 1 parsed) filename))
(should (equal (nth 2 parsed) filename))))
;; And the remote file.
(should (eq (dnd-begin-file-drag remote-temp-file) 'copy))
;; Test that the remote file was added to the list of files
;; to remove later.
(should dnd-last-dragged-remote-file)
;; Make sure the appropriate hook is added so the remote
;; files are removed when Emacs exits.
(should (memq #'dnd-remove-last-dragged-remote-file
kill-emacs-hook))
;; Test that the remote file was removed.
(should (progn
(dnd-begin-file-drag normal-temp-file)
(not dnd-last-dragged-remote-file)))
;; Make sure the remote file removal hook was deleted.
(should-not (memq #'dnd-remove-last-dragged-remote-file
kill-emacs-hook))
;; Test that links to remote files can't be created.
(should-error (dnd-begin-file-drag remote-temp-file nil 'link))
;; Test dragging a file with a multibyte filename.
(should (eq (dnd-begin-file-drag normal-multibyte-file) 'copy))
;; Test that the ToolTalk filename is encodes and decodes correctly.
(let* ((netfile-data (cdr (dnd-tests-verify-selection-data '_DT_NETFILE)))
(parsed (dnd-tests-parse-tt-netfile netfile-data))
(filename (encode-coding-string normal-multibyte-file
(or file-name-coding-system
default-file-name-coding-system))))
(should (equal (nth 0 parsed) (system-name)))
(should (equal (nth 1 parsed) filename))
(should (equal (nth 2 parsed) filename))))
(delete-file normal-temp-file)
(delete-file normal-multibyte-file)
(delete-file remote-temp-file))))
(ert-deftest dnd-tests-begin-drag-files ()
(skip-unless (and (dnd-tests-remote-accessible-p)
;; TODO: make these tests work under X.
(not (eq window-system 'x))))
(let ((normal-temp-file (expand-file-name (make-temp-name "dnd-test")
temporary-file-directory))
(normal-temp-file-1 (expand-file-name (make-temp-name "dnd-test")
temporary-file-directory))
(remote-temp-file (dnd-tests-make-temp-name))
(nonexistent-local-file
(expand-file-name (make-temp-name "dnd-test")
temporary-file-directory))
(nonexistent-remote-file (dnd-tests-make-temp-name))
(nonexistent-remote-file-1 (dnd-tests-make-temp-name))
(x-dnd-preserve-selection-data t))
;; Touch those files if they don't exist.
(unless (file-exists-p normal-temp-file)
(write-region "" 0 normal-temp-file))
(unless (file-exists-p normal-temp-file-1)
(write-region "" 0 normal-temp-file))
(unless (file-exists-p remote-temp-file)
(write-region "" 0 remote-temp-file))
(ignore-errors
(delete-file nonexistent-local-file)
(delete-file nonexistent-remote-file)
(delete-file nonexistent-remote-file-1))
(unwind-protect
(progn
;; Now test dragging a normal file and a remote file.
(should (eq (dnd-begin-drag-files (list normal-temp-file
remote-temp-file))
'copy))
;; Test that the remote file produced was added to the list
;; of files to remove upon the next call.
(should dnd-last-dragged-remote-file)
;; Make sure the appropriate hook is added so the remote
;; files are removed when Emacs exits.
(should (memq #'dnd-remove-last-dragged-remote-file
kill-emacs-hook))
;; Two local files at the same time.
(should (eq (dnd-begin-drag-files (list normal-temp-file
normal-temp-file-1))
'copy))
;; Test that the remote files were removed.
(should-not dnd-last-dragged-remote-file)
;; And so was the hook.
(should-not (memq #'dnd-remove-last-dragged-remote-file
kill-emacs-hook))
;; Test the selection data is correct.
(let ((uri-list-data (cdr (dnd-tests-verify-selection-data 'text/uri-list)))
(username-data (dnd-tests-verify-selection-data 'text/x-xdnd-username))
(file-name-data (cdr (dnd-tests-verify-selection-data 'FILE_NAME)))
(host-name-data (cdr (dnd-tests-verify-selection-data 'HOST_NAME))))
;; Check if the URI list is formatted correctly.
(let* ((split-uri-list (split-string uri-list-data "[\0\r\n]" t))
(decoded (mapcar #'dnd-get-local-file-name split-uri-list)))
(should (equal (car decoded) normal-temp-file))
(should (equal (cadr decoded) normal-temp-file-1)))
;; Test that the username reported is correct.
(should (equal username-data (user-real-login-name)))
;; Test that the file name data is correct.
(let ((split-file-names (split-string file-name-data "\0")))
;; Make sure there are no extra leading or trailing NULL bytes.
(should (equal (length split-file-names) 2))
;; Make sure all file names are encoded correctly;
(dolist (name split-file-names)
(should-not (multibyte-string-p name)))
;; Make sure decoding the file names result in the
;; originals.
(should (equal (decode-coding-string (car split-file-names)
(or file-name-coding-system
default-file-name-coding-system))
normal-temp-file))
(should (equal (decode-coding-string (cadr split-file-names)
(or file-name-coding-system
default-file-name-coding-system))
normal-temp-file-1))
;; Also make sure the hostname is correct.
(should (equal host-name-data (system-name)))))
;; Multiple local files with some remote files that will
;; fail, and some that won't.
(should (and (eq (dnd-begin-drag-files (list normal-temp-file
remote-temp-file
remote-temp-file
nonexistent-remote-file
normal-temp-file-1
nonexistent-remote-file-1))
'copy)
;; Make sure exactly two valid remote files
;; were downloaded.
(eq (length dnd-last-dragged-remote-file) 2)))
;; Make sure the appropriate hook is added so the remote
;; files are removed when Emacs exits.
(should (memq #'dnd-remove-last-dragged-remote-file
kill-emacs-hook))
;; Make sure links can't be created to remote files.
(should-error (dnd-begin-drag-files (list normal-temp-file
remote-temp-file
normal-temp-file-1)
nil 'link))
;; And that they can to normal files.
(should (eq (dnd-begin-drag-files (list normal-temp-file
normal-temp-file-1)
nil 'link)
'link))
;; Make sure the remote file removal hook was deleted.
(should-not (memq #'dnd-remove-last-dragged-remote-file
kill-emacs-hook))
;; Make sure you can't drag an empty list of files.
(should-error (dnd-begin-drag-files nil))
;; And when all remote files are inaccessible.
(should-error (dnd-begin-drag-files (list nonexistent-remote-file
nonexistent-remote-file-1))))
(delete-file normal-temp-file)
(delete-file normal-temp-file-1)
(delete-file remote-temp-file))))
(ert-deftest dnd-tests-get-local-file-uri ()
(should (equal (dnd-get-local-file-uri "file://localhost/path/to/foo")
"file:///path/to/foo"))
(should (equal (dnd-get-local-file-uri
(format "file://%s/path/to/" (system-name)))
"file:///path/to/"))
(should-not (dnd-get-local-file-uri "file://some-remote-host/path/to/foo"))
(should-not (dnd-get-local-file-uri "file:///path/to/foo")))
(ert-deftest dnd-tests-open-remote-url ()
;; Expensive test to make sure opening an FTP URL during
;; drag-and-drop works.
:tags '(:expensive-test)
;; Don't run if there is no ftp client.
(skip-unless (executable-find "ftp"))
;; Don't run this test if the FTP server isn't reachable.
(skip-unless (and (fboundp 'network-lookup-address-info)
(network-lookup-address-info "ftp.gnu.org")))
;; Make sure bug#56078 doesn't happen again.
(let ((url "ftp://anonymous@ftp.gnu.org/")
;; This prints a bunch of annoying spaces to stdout.
(inhibit-message t))
(should (prog1 t (dnd-open-remote-url url 'private)))))
(ert-deftest dnd-tests-direct-save ()
;; This test just verifies that a direct save works; the window
;; system specific test is in x-dnd-tests.el. When running this
;; interactively, keep in mind that there are only two file managers
;; which are known to implement XDS correctly: System G (see
;; https://nps-systemg.sourceforge.net), and Emacs itself. GTK file
;; managers such as Nautilus will not work, since they prefer the
;; `text/uri-list' selection target to `XdndDirectSave0', contrary
;; to the XDS specification.
(let ((window-system window-system)
(normal-temp-file (expand-file-name (make-temp-name "dnd-test")
temporary-file-directory)))
(unwind-protect
(progn
(unless (file-exists-p normal-temp-file)
(write-region "" 0 normal-temp-file))
(unless (eq window-system 'x)
;; Use a window system that isn't X, since we only want to test
;; the fallback code when run non-interactively.
(setq window-system 'haiku))
(should (eq (dnd-direct-save normal-temp-file
(make-temp-name "target-file-name"))
'copy)))
(ignore-errors
(delete-file normal-temp-file)))))
(defvar dnd-tests-list-1 '("file:///usr/openwin/include/pixrect/pr_impl.h"
"file:///usr/openwin/include/pixrect/pr_io.h")
"Sample data for tests concerning the treatment of drag-and-drop URLs.")
(defvar dnd-tests-list-2 '("file:///usr/openwin/include/pixrect/pr_impl.h"
"file://remote/usr/openwin/include/pixrect/pr_io.h")
"Sample data for tests concerning the treatment of drag-and-drop URLs.")
(defvar dnd-tests-list-3 (append dnd-tests-list-2 '("http://example.com"))
"Sample data for tests concerning the treatment of drag-and-drop URLs.")
(defvar dnd-tests-list-4 (append dnd-tests-list-3 '("scheme1://foo.bar"
"scheme2://foo.bar"))
"Sample data for tests concerning the treatment of drag-and-drop URLs.")
(defun dnd-tests-local-file-function (urls _action)
"Signal an error if URLS doesn't match `dnd-tests-list-1'.
ACTION is ignored. Return the symbol `copy' otherwise."
(should (equal urls dnd-tests-list-1))
'copy)
(put 'dnd-tests-local-file-function 'dnd-multiple-handler t)
(defun dnd-tests-remote-file-function (urls _action)
"Signal an error if URLS doesn't match `dnd-tests-list-2'.
ACTION is ignored. Return the symbol `copy' otherwise."
(should (equal urls dnd-tests-list-2))
'copy)
(put 'dnd-tests-remote-file-function 'dnd-multiple-handler t)
(defun dnd-tests-http-scheme-function (url _action)
"Signal an error if URLS doesn't match `dnd-tests-list-3''s third element.
ACTION is ignored. Return the symbol `private' otherwise."
(should (equal url (car (last dnd-tests-list-3))))
'private)
(defun dnd-tests-browse-url-handler (url &rest _ignored)
"Verify URL is `dnd-tests-list-4''s fourth element."
(should (equal url (nth 3 dnd-tests-list-4))))
(put 'dnd-tests-browse-url-handler 'browse-url-browser-kind 'internal)
(ert-deftest dnd-tests-receive-multiple-urls ()
(let ((dnd-protocol-alist '(("^file:///" . dnd-tests-local-file-function)
("^file:" . error)
("^unrelated-scheme:" . error)))
(browse-url-handlers nil))
;; Check that the order of the alist is respected when the
;; precedences of two handlers are equal.
(should (equal (dnd-handle-multiple-urls (selected-window)
(copy-sequence
dnd-tests-list-1)
'copy)
'copy))
;; Check that sorting handlers by precedence functions correctly.
(setq dnd-protocol-alist '(("^file:///" . error)
("^file:" . dnd-tests-remote-file-function)
("^unrelated-scheme:" . error)))
(should (equal (dnd-handle-multiple-urls (selected-window)
(copy-sequence
dnd-tests-list-2)
'copy)
'copy))
;; Check that multiple handlers can be called at once, and actions
;; are properly "downgraded" to private when multiple handlers
;; return inconsistent values.
(setq dnd-protocol-alist '(("^file:" . dnd-tests-remote-file-function)
("^file:///" . error)
("^http://" . dnd-tests-http-scheme-function)))
(should (equal (dnd-handle-multiple-urls (selected-window)
(copy-sequence
dnd-tests-list-3)
'copy)
'private))
;; Now verify that the function's documented fallback behavior
;; functions correctly. Set browse-url-handlers to an association
;; list incorporating a test function, then guarantee that is
;; called.
(setq browse-url-handlers '(("^scheme1://" . dnd-tests-browse-url-handler)))
;; Furthermore, guarantee the fifth argument of the test data is
;; inserted, for no apposite handler exists.
(save-window-excursion
(set-window-buffer nil (get-buffer-create " *dnd-tests*"))
(set-buffer (get-buffer-create " *dnd-tests*"))
(erase-buffer)
(should (equal (dnd-handle-multiple-urls (selected-window)
(copy-sequence
dnd-tests-list-4)
'copy)
'private))
(should (equal (buffer-string) (nth 4 dnd-tests-list-4))))
;; Check that a handler enumerated twice in the handler list
;; receives URIs assigned to it only once.
(let* ((received-p nil)
(lambda (lambda (uri _action)
(should (equal uri "scheme1://test"))
(should (null received-p))
(setq received-p 'copy))))
(setq dnd-protocol-alist (list (cons "scheme1://" lambda)
(cons "scheme1://" lambda)))
(should (equal (dnd-handle-multiple-urls (selected-window)
(list "scheme1://test")
'copy)
'copy)))))
(ert-deftest dnd-tests-default-file-name-handlers ()
(let* ((local-files-opened nil)
(remote-files-opened nil)
(function-1 (lambda (file _uri)
(push file local-files-opened)
'copy))
(function-2 (lambda (file _uri)
(push file remote-files-opened)
'copy)))
(unwind-protect
(progn
(advice-add #'dnd-open-local-file :override
function-1)
(advice-add #'dnd-open-file :override
function-2)
;; Guarantee that file names are properly categorized as either
;; local or remote by the default dnd-protocol-alist.
(dnd-handle-multiple-urls
(selected-window)
(list
;; These are run-of-the-mill local file URIs.
"file:///usr/include/sys/acct.h"
"file:///usr/include/sys/acctctl.h"
;; These URIs incorporate a host; they should match
;; function-2 but never function-1.
"file://remotehost/usr/src/emacs/configure.ac"
"file://remotehost/usr/src/emacs/configure"
;; These URIs are generated by drag-and-drop event
;; handlers from local file names alone; they are not
;; echt URIs in and of themselves, but a product of our
;; drag and drop code.
"file:/etc/vfstab"
"file:/etc/dfs/sharetab"
;; These URIs are generated under MS-Windows.
"file:c:/path/to/file/name"
"file:d:/path/to/file/name")
'copy)
(should (equal (sort local-files-opened #'string<)
'("file:///usr/include/sys/acct.h"
"file:///usr/include/sys/acctctl.h"
"file:/etc/dfs/sharetab"
"file:/etc/vfstab"
"file:c:/path/to/file/name"
"file:d:/path/to/file/name")))
(should (equal (sort remote-files-opened #'string<)
'("file://remotehost/usr/src/emacs/configure"
"file://remotehost/usr/src/emacs/configure.ac"))))
(advice-remove #'dnd-open-local-file function-2))))
(provide 'dnd-tests)
;;; dnd-tests.el ends here
|
