summaryrefslogtreecommitdiff
path: root/t/t4014-format-patch.sh
blob: a7060b75be60fd5d16128274e15344c6333de76f (plain)
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
#!/bin/sh
#
# Copyright (c) 2006 Junio C Hamano
#

test_description='various format-patch tests'

. ./test-lib.sh
. "$TEST_DIRECTORY"/lib-terminal.sh

test_expect_success setup '

	for i in 1 2 3 4 5 6 7 8 9 10; do echo "$i"; done >file &&
	cat file >elif &&
	git add file elif &&
	test_tick &&
	git commit -m Initial &&
	git checkout -b side &&

	for i in 1 2 5 6 A B C 7 8 9 10; do echo "$i"; done >file &&
	test_chmod +x elif &&
	test_tick &&
	git commit -m "Side changes #1" &&

	for i in D E F; do echo "$i"; done >>file &&
	git update-index file &&
	test_tick &&
	git commit -m "Side changes #2" &&
	git tag C2 &&

	for i in 5 6 1 2 3 A 4 B C 7 8 9 10 D E F; do echo "$i"; done >file &&
	git update-index file &&
	test_tick &&
	git commit -m "Side changes #3 with \\n backslash-n in it." &&

	git checkout master &&
	git diff-tree -p C2 | git apply --index &&
	test_tick &&
	git commit -m "Master accepts moral equivalent of #2"

'

test_expect_success "format-patch --ignore-if-in-upstream" '

	git format-patch --stdout master..side >patch0 &&
	cnt=`grep "^From " patch0 | wc -l` &&
	test $cnt = 3

'

test_expect_success "format-patch --ignore-if-in-upstream" '

	git format-patch --stdout \
		--ignore-if-in-upstream master..side >patch1 &&
	cnt=`grep "^From " patch1 | wc -l` &&
	test $cnt = 2

'

test_expect_success "format-patch doesn't consider merge commits" '

	git checkout -b slave master &&
	echo "Another line" >>file &&
	test_tick &&
	git commit -am "Slave change #1" &&
	echo "Yet another line" >>file &&
	test_tick &&
	git commit -am "Slave change #2" &&
	git checkout -b merger master &&
	test_tick &&
	git merge --no-ff slave &&
	cnt=`git format-patch -3 --stdout | grep "^From " | wc -l` &&
	test $cnt = 3
'

test_expect_success "format-patch result applies" '

	git checkout -b rebuild-0 master &&
	git am -3 patch0 &&
	cnt=`git rev-list master.. | wc -l` &&
	test $cnt = 2
'

test_expect_success "format-patch --ignore-if-in-upstream result applies" '

	git checkout -b rebuild-1 master &&
	git am -3 patch1 &&
	cnt=`git rev-list master.. | wc -l` &&
	test $cnt = 2
'

test_expect_success 'commit did not screw up the log message' '

	git cat-file commit side | grep "^Side .* with .* backslash-n"

'

test_expect_success 'format-patch did not screw up the log message' '

	grep "^Subject: .*Side changes #3 with .* backslash-n" patch0 &&
	grep "^Subject: .*Side changes #3 with .* backslash-n" patch1

'

test_expect_success 'replay did not screw up the log message' '

	git cat-file commit rebuild-1 | grep "^Side .* with .* backslash-n"

'

test_expect_success 'extra headers' '

	git config format.headers "To: R. E. Cipient <rcipient@example.com>
" &&
	git config --add format.headers "Cc: S. E. Cipient <scipient@example.com>
" &&
	git format-patch --stdout master..side > patch2 &&
	sed -e "/^\$/q" patch2 > hdrs2 &&
	grep "^To: R. E. Cipient <rcipient@example.com>\$" hdrs2 &&
	grep "^Cc: S. E. Cipient <scipient@example.com>\$" hdrs2

'

test_expect_success 'extra headers without newlines' '

	git config --replace-all format.headers "To: R. E. Cipient <rcipient@example.com>" &&
	git config --add format.headers "Cc: S. E. Cipient <scipient@example.com>" &&
	git format-patch --stdout master..side >patch3 &&
	sed -e "/^\$/q" patch3 > hdrs3 &&
	grep "^To: R. E. Cipient <rcipient@example.com>\$" hdrs3 &&
	grep "^Cc: S. E. Cipient <scipient@example.com>\$" hdrs3

'

test_expect_success 'extra headers with multiple To:s' '

	git config --replace-all format.headers "To: R. E. Cipient <rcipient@example.com>" &&
	git config --add format.headers "To: S. E. Cipient <scipient@example.com>" &&
	git format-patch --stdout master..side > patch4 &&
	sed -e "/^\$/q" patch4 > hdrs4 &&
	grep "^To: R. E. Cipient <rcipient@example.com>,\$" hdrs4 &&
	grep "^ *S. E. Cipient <scipient@example.com>\$" hdrs4
'

test_expect_success 'additional command line cc' '

	git config --replace-all format.headers "Cc: R. E. Cipient <rcipient@example.com>" &&
	git format-patch --cc="S. E. Cipient <scipient@example.com>" --stdout master..side | sed -e "/^\$/q" >patch5 &&
	grep "^Cc: R. E. Cipient <rcipient@example.com>,\$" patch5 &&
	grep "^ *S. E. Cipient <scipient@example.com>\$" patch5
'

test_expect_success 'command line headers' '

	git config --unset-all format.headers &&
	git format-patch --add-header="Cc: R. E. Cipient <rcipient@example.com>" --stdout master..side | sed -e "/^\$/q" >patch6 &&
	grep "^Cc: R. E. Cipient <rcipient@example.com>\$" patch6
'

test_expect_success 'configuration headers and command line headers' '

	git config --replace-all format.headers "Cc: R. E. Cipient <rcipient@example.com>" &&
	git format-patch --add-header="Cc: S. E. Cipient <scipient@example.com>" --stdout master..side | sed -e "/^\$/q" >patch7 &&
	grep "^Cc: R. E. Cipient <rcipient@example.com>,\$" patch7 &&
	grep "^ *S. E. Cipient <scipient@example.com>\$" patch7
'

test_expect_success 'command line To: header' '

	git config --unset-all format.headers &&
	git format-patch --to="R. E. Cipient <rcipient@example.com>" --stdout master..side | sed -e "/^\$/q" >patch8 &&
	grep "^To: R. E. Cipient <rcipient@example.com>\$" patch8
'

test_expect_success 'configuration To: header' '

	git config format.to "R. E. Cipient <rcipient@example.com>" &&
	git format-patch --stdout master..side | sed -e "/^\$/q" >patch9 &&
	grep "^To: R. E. Cipient <rcipient@example.com>\$" patch9
'

test_expect_success '--no-to overrides config.to' '

	git config --replace-all format.to \
		"R. E. Cipient <rcipient@example.com>" &&
	git format-patch --no-to --stdout master..side |
	sed -e "/^\$/q" >patch10 &&
	! grep "^To: R. E. Cipient <rcipient@example.com>\$" patch10
'

test_expect_success '--no-to and --to replaces config.to' '

	git config --replace-all format.to \
		"Someone <someone@out.there>" &&
	git format-patch --no-to --to="Someone Else <else@out.there>" \
		--stdout master..side |
	sed -e "/^\$/q" >patch11 &&
	! grep "^To: Someone <someone@out.there>\$" patch11 &&
	grep "^To: Someone Else <else@out.there>\$" patch11
'

test_expect_success '--no-cc overrides config.cc' '

	git config --replace-all format.cc \
		"C. E. Cipient <rcipient@example.com>" &&
	git format-patch --no-cc --stdout master..side |
	sed -e "/^\$/q" >patch12 &&
	! grep "^Cc: C. E. Cipient <rcipient@example.com>\$" patch12
'

test_expect_success '--no-add-headers overrides config.headers' '

	git config --replace-all format.headers \
		"Header1: B. E. Cipient <rcipient@example.com>" &&
	git format-patch --no-add-headers --stdout master..side |
	sed -e "/^\$/q" >patch13 &&
	! grep "^Header1: B. E. Cipient <rcipient@example.com>\$" patch13
'

test_expect_success 'multiple files' '

	rm -rf patches/ &&
	git checkout side &&
	git format-patch -o patches/ master &&
	ls patches/0001-Side-changes-1.patch patches/0002-Side-changes-2.patch patches/0003-Side-changes-3-with-n-backslash-n-in-it.patch
'

check_threading () {
	expect="$1" &&
	shift &&
	(git format-patch --stdout "$@"; echo $? > status.out) |
	# Prints everything between the Message-ID and In-Reply-To,
	# and replaces all Message-ID-lookalikes by a sequence number
	perl -ne '
		if (/^(message-id|references|in-reply-to)/i) {
			$printing = 1;
		} elsif (/^\S/) {
			$printing = 0;
		}
		if ($printing) {
			$h{$1}=$i++ if (/<([^>]+)>/ and !exists $h{$1});
			for $k (keys %h) {s/$k/$h{$k}/};
			print;
		}
		print "---\n" if /^From /i;
	' > actual &&
	test 0 = "$(cat status.out)" &&
	test_cmp "$expect" actual
}

cat >> expect.no-threading <<EOF
---
---
---
EOF

test_expect_success 'no threading' '
	git checkout side &&
	check_threading expect.no-threading master
'

cat > expect.thread <<EOF
---
Message-Id: <0>
---
Message-Id: <1>
In-Reply-To: <0>
References: <0>
---
Message-Id: <2>
In-Reply-To: <0>
References: <0>
EOF

test_expect_success 'thread' '
	check_threading expect.thread --thread master
'

cat > expect.in-reply-to <<EOF
---
Message-Id: <0>
In-Reply-To: <1>
References: <1>
---
Message-Id: <2>
In-Reply-To: <1>
References: <1>
---
Message-Id: <3>
In-Reply-To: <1>
References: <1>
EOF

test_expect_success 'thread in-reply-to' '
	check_threading expect.in-reply-to --in-reply-to="<test.message>" \
		--thread master
'

cat > expect.cover-letter <<EOF
---
Message-Id: <0>
---
Message-Id: <1>
In-Reply-To: <0>
References: <0>
---
Message-Id: <2>
In-Reply-To: <0>
References: <0>
---
Message-Id: <3>
In-Reply-To: <0>
References: <0>
EOF

test_expect_success 'thread cover-letter' '
	check_threading expect.cover-letter --cover-letter --thread master
'

cat > expect.cl-irt <<EOF
---
Message-Id: <0>
In-Reply-To: <1>
References: <1>
---
Message-Id: <2>
In-Reply-To: <0>
References: <1>
	<0>
---
Message-Id: <3>
In-Reply-To: <0>
References: <1>
	<0>
---
Message-Id: <4>
In-Reply-To: <0>
References: <1>
	<0>
EOF

test_expect_success 'thread cover-letter in-reply-to' '
	check_threading expect.cl-irt --cover-letter \
		--in-reply-to="<test.message>" --thread master
'

test_expect_success 'thread explicit shallow' '
	check_threading expect.cl-irt --cover-letter \
		--in-reply-to="<test.message>" --thread=shallow master
'

cat > expect.deep <<EOF
---
Message-Id: <0>
---
Message-Id: <1>
In-Reply-To: <0>
References: <0>
---
Message-Id: <2>
In-Reply-To: <1>
References: <0>
	<1>
EOF

test_expect_success 'thread deep' '
	check_threading expect.deep --thread=deep master
'

cat > expect.deep-irt <<EOF
---
Message-Id: <0>
In-Reply-To: <1>
References: <1>
---
Message-Id: <2>
In-Reply-To: <0>
References: <1>
	<0>
---
Message-Id: <3>
In-Reply-To: <2>
References: <1>
	<0>
	<2>
EOF

test_expect_success 'thread deep in-reply-to' '
	check_threading expect.deep-irt  --thread=deep \
		--in-reply-to="<test.message>" master
'

cat > expect.deep-cl <<EOF
---
Message-Id: <0>
---
Message-Id: <1>
In-Reply-To: <0>
References: <0>
---
Message-Id: <2>
In-Reply-To: <1>
References: <0>
	<1>
---
Message-Id: <3>
In-Reply-To: <2>
References: <0>
	<1>
	<2>
EOF

test_expect_success 'thread deep cover-letter' '
	check_threading expect.deep-cl --cover-letter --thread=deep master
'

cat > expect.deep-cl-irt <<EOF
---
Message-Id: <0>
In-Reply-To: <1>
References: <1>
---
Message-Id: <2>
In-Reply-To: <0>
References: <1>
	<0>
---
Message-Id: <3>
In-Reply-To: <2>
References: <1>
	<0>
	<2>
---
Message-Id: <4>
In-Reply-To: <3>
References: <1>
	<0>
	<2>
	<3>
EOF

test_expect_success 'thread deep cover-letter in-reply-to' '
	check_threading expect.deep-cl-irt --cover-letter \
		--in-reply-to="<test.message>" --thread=deep master
'

test_expect_success 'thread via config' '
	git config format.thread true &&
	check_threading expect.thread master
'

test_expect_success 'thread deep via config' '
	git config format.thread deep &&
	check_threading expect.deep master
'

test_expect_success 'thread config + override' '
	git config format.thread deep &&
	check_threading expect.thread --thread master
'

test_expect_success 'thread config + --no-thread' '
	git config format.thread deep &&
	check_threading expect.no-threading --no-thread master
'

test_expect_success 'excessive subject' '

	rm -rf patches/ &&
	git checkout side &&
	for i in 5 6 1 2 3 A 4 B C 7 8 9 10 D E F; do echo "$i"; done >>file &&
	git update-index file &&
	git commit -m "This is an excessively long subject line for a message due to the habit some projects have of not having a short, one-line subject at the start of the commit message, but rather sticking a whole paragraph right at the start as the only thing in the commit message. It had better not become the filename for the patch." &&
	git format-patch -o patches/ master..side &&
	ls patches/0004-This-is-an-excessively-long-subject-line-for-a-messa.patch
'

test_expect_success 'cover-letter inherits diff options' '

	git mv file foo &&
	git commit -m foo &&
	git format-patch --cover-letter -1 &&
	! grep "file => foo .* 0 *\$" 0000-cover-letter.patch &&
	git format-patch --cover-letter -1 -M &&
	grep "file => foo .* 0 *\$" 0000-cover-letter.patch

'

cat > expect << EOF
  This is an excessively long subject line for a message due to the
    habit some projects have of not having a short, one-line subject at
    the start of the commit message, but rather sticking a whole
    paragraph right at the start as the only thing in the commit
    message. It had better not become the filename for the patch.
  foo

EOF

test_expect_success 'shortlog of cover-letter wraps overly-long onelines' '

	git format-patch --cover-letter -2 &&
	sed -e "1,/A U Thor/d" -e "/^\$/q" < 0000-cover-letter.patch > output &&
	test_cmp expect output

'

cat > expect << EOF
---
 file |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/file b/file
index 40f36c6..2dc5c23 100644
--- a/file
+++ b/file
@@ -13,4 +13,20 @@ C
 10
 D
 E
 F
+5
EOF

test_expect_success 'format-patch respects -U' '

	git format-patch -U4 -2 &&
	sed -e "1,/^\$/d" -e "/^+5/q" < 0001-This-is-an-excessively-long-subject-line-for-a-messa.patch > output &&
	test_cmp expect output

'

cat > expect << EOF

diff --git a/file b/file
index 40f36c6..2dc5c23 100644
--- a/file
+++ b/file
@@ -14,3 +14,19 @@ C
 D
 E
 F
+5
EOF

test_expect_success 'format-patch -p suppresses stat' '

	git format-patch -p -2 &&
	sed -e "1,/^\$/d" -e "/^+5/q" < 0001-This-is-an-excessively-long-subject-line-for-a-messa.patch > output &&
	test_cmp expect output

'

test_expect_success 'format-patch from a subdirectory (1)' '
	filename=$(
		rm -rf sub &&
		mkdir -p sub/dir &&
		cd sub/dir &&
		git format-patch -1
	) &&
	case "$filename" in
	0*)
		;; # ok
	*)
		echo "Oops? $filename"
		false
		;;
	esac &&
	test -f "$filename"
'

test_expect_success 'format-patch from a subdirectory (2)' '
	filename=$(
		rm -rf sub &&
		mkdir -p sub/dir &&
		cd sub/dir &&
		git format-patch -1 -o ..
	) &&
	case "$filename" in
	../0*)
		;; # ok
	*)
		echo "Oops? $filename"
		false
		;;
	esac &&
	basename=$(expr "$filename" : ".*/\(.*\)") &&
	test -f "sub/$basename"
'

test_expect_success 'format-patch from a subdirectory (3)' '
	rm -f 0* &&
	filename=$(
		rm -rf sub &&
		mkdir -p sub/dir &&
		cd sub/dir &&
		git format-patch -1 -o "$TRASH_DIRECTORY"
	) &&
	basename=$(expr "$filename" : ".*/\(.*\)") &&
	test -f "$basename"
'

test_expect_success 'format-patch --in-reply-to' '
	git format-patch -1 --stdout --in-reply-to "baz@foo.bar" > patch8 &&
	grep "^In-Reply-To: <baz@foo.bar>" patch8 &&
	grep "^References: <baz@foo.bar>" patch8
'

test_expect_success 'format-patch --signoff' '
	git format-patch -1 --signoff --stdout |
	grep "^Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>"
'

echo "fatal: --name-only does not make sense" > expect.name-only
echo "fatal: --name-status does not make sense" > expect.name-status
echo "fatal: --check does not make sense" > expect.check

test_expect_success 'options no longer allowed for format-patch' '
	test_must_fail git format-patch --name-only 2> output &&
	test_i18ncmp expect.name-only output &&
	test_must_fail git format-patch --name-status 2> output &&
	test_i18ncmp expect.name-status output &&
	test_must_fail git format-patch --check 2> output &&
	test_i18ncmp expect.check output'

test_expect_success 'format-patch --numstat should produce a patch' '
	git format-patch --numstat --stdout master..side > output &&
	test 6 = $(grep "^diff --git a/" output | wc -l)'

test_expect_success 'format-patch -- <path>' '
	git format-patch master..side -- file 2>error &&
	! grep "Use .--" error
'

test_expect_success 'format-patch --ignore-if-in-upstream HEAD' '
	git format-patch --ignore-if-in-upstream HEAD
'

test_expect_success 'format-patch --signature' '
	git format-patch --stdout --signature="my sig" -1 >output &&
	grep "my sig" output
'

test_expect_success 'format-patch with format.signature config' '
	git config format.signature "config sig" &&
	git format-patch --stdout -1 >output &&
	grep "config sig" output
'

test_expect_success 'format-patch --signature overrides format.signature' '
	git config format.signature "config sig" &&
	git format-patch --stdout --signature="overrides" -1 >output &&
	! grep "config sig" output &&
	grep "overrides" output
'

test_expect_success 'format-patch --no-signature ignores format.signature' '
	git config format.signature "config sig" &&
	git format-patch --stdout --signature="my sig" --no-signature \
		-1 >output &&
	! grep "config sig" output &&
	! grep "my sig" output &&
	! grep "^-- \$" output
'

test_expect_success 'format-patch --signature --cover-letter' '
	git config --unset-all format.signature &&
	git format-patch --stdout --signature="my sig" --cover-letter \
		-1 >output &&
	grep "my sig" output &&
	test 2 = $(grep "my sig" output | wc -l)
'

test_expect_success 'format.signature="" supresses signatures' '
	git config format.signature "" &&
	git format-patch --stdout -1 >output &&
	! grep "^-- \$" output
'

test_expect_success 'format-patch --no-signature supresses signatures' '
	git config --unset-all format.signature &&
	git format-patch --stdout --no-signature -1 >output &&
	! grep "^-- \$" output
'

test_expect_success 'format-patch --signature="" supresses signatures' '
	git format-patch --signature="" -1 >output &&
	! grep "^-- \$" output
'

test_expect_success TTY 'format-patch --stdout paginates' '
	rm -f pager_used &&
	(
		GIT_PAGER="wc >pager_used" &&
		export GIT_PAGER &&
		test_terminal git format-patch --stdout --all
	) &&
	test_path_is_file pager_used
'

 test_expect_success TTY 'format-patch --stdout pagination can be disabled' '
	rm -f pager_used &&
	(
		GIT_PAGER="wc >pager_used" &&
		export GIT_PAGER &&
		test_terminal git --no-pager format-patch --stdout --all &&
		test_terminal git -c "pager.format-patch=false" format-patch --stdout --all
	) &&
	test_path_is_missing pager_used &&
	test_path_is_missing .git/pager_used
'

test_expect_success 'format-patch handles multi-line subjects' '
	rm -rf patches/ &&
	echo content >>file &&
	for i in one two three; do echo $i; done >msg &&
	git add file &&
	git commit -F msg &&
	git format-patch -o patches -1 &&
	grep ^Subject: patches/0001-one.patch >actual &&
	echo "Subject: [PATCH] one two three" >expect &&
	test_cmp expect actual
'

test_expect_success 'format-patch handles multi-line encoded subjects' '
	rm -rf patches/ &&
	echo content >>file &&
	for i in en två tre; do echo $i; done >msg &&
	git add file &&
	git commit -F msg &&
	git format-patch -o patches -1 &&
	grep ^Subject: patches/0001-en.patch >actual &&
	echo "Subject: [PATCH] =?UTF-8?q?en=20tv=C3=A5=20tre?=" >expect &&
	test_cmp expect actual
'

M8="foo bar "
M64=$M8$M8$M8$M8$M8$M8$M8$M8
M512=$M64$M64$M64$M64$M64$M64$M64$M64
cat >expect <<'EOF'
Subject: [PATCH] foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo
 bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
 foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo
 bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
 foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo
 bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
 foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo
 bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
 foo bar foo bar foo bar foo bar
EOF
test_expect_success 'format-patch wraps extremely long headers (ascii)' '
	echo content >>file &&
	git add file &&
	git commit -m "$M512" &&
	git format-patch --stdout -1 >patch &&
	sed -n "/^Subject/p; /^ /p; /^$/q" <patch >subject &&
	test_cmp expect subject
'

M8="föö bar "
M64=$M8$M8$M8$M8$M8$M8$M8$M8
M512=$M64$M64$M64$M64$M64$M64$M64$M64
cat >expect <<'EOF'
Subject: [PATCH] =?UTF-8?q?f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar?=
EOF
test_expect_success 'format-patch wraps extremely long headers (rfc2047)' '
	rm -rf patches/ &&
	echo content >>file &&
	git add file &&
	git commit -m "$M512" &&
	git format-patch --stdout -1 >patch &&
	sed -n "/^Subject/p; /^ /p; /^$/q" <patch >subject &&
	test_cmp expect subject
'

M8="foo_bar_"
M64=$M8$M8$M8$M8$M8$M8$M8$M8
cat >expect <<EOF
From: $M64
 <foobar@foo.bar>
EOF
test_expect_success 'format-patch wraps non-quotable headers' '
	rm -rf patches/ &&
	echo content >>file &&
	git add file &&
	git commit -mfoo --author "$M64 <foobar@foo.bar>" &&
	git format-patch --stdout -1 >patch &&
	sed -n "/^From: /p; /^ /p; /^$/q" <patch >from &&
	test_cmp expect from
'
test_done