3 # Copyright (c) 2006 Junio C Hamano
6 test_description
='various format-patch tests'
9 .
"$TEST_DIRECTORY"/lib-terminal.sh
11 test_expect_success setup
'
13 for i in 1 2 3 4 5 6 7 8 9 10; do echo "$i"; done >file &&
17 git commit -m Initial &&
18 git checkout -b side &&
20 for i in 1 2 5 6 A B C 7 8 9 10; do echo "$i"; done >file &&
23 git commit -m "Side changes #1" &&
25 for i in D E F; do echo "$i"; done >>file &&
26 git update-index file &&
28 git commit -m "Side changes #2" &&
31 for i in 5 6 1 2 3 A 4 B C 7 8 9 10 D E F; do echo "$i"; done >file &&
32 git update-index file &&
34 git commit -m "Side changes #3 with \\n backslash-n in it." &&
36 git checkout master &&
37 git diff-tree -p C2 | git apply --index &&
39 git commit -m "Master accepts moral equivalent of #2"
43 test_expect_success
"format-patch --ignore-if-in-upstream" '
45 git format-patch --stdout master..side >patch0 &&
46 cnt=`grep "^From " patch0 | wc -l` &&
51 test_expect_success
"format-patch --ignore-if-in-upstream" '
53 git format-patch --stdout \
54 --ignore-if-in-upstream master..side >patch1 &&
55 cnt=`grep "^From " patch1 | wc -l` &&
60 test_expect_success
"format-patch doesn't consider merge commits" '
62 git checkout -b slave master &&
63 echo "Another line" >>file &&
65 git commit -am "Slave change #1" &&
66 echo "Yet another line" >>file &&
68 git commit -am "Slave change #2" &&
69 git checkout -b merger master &&
71 git merge --no-ff slave &&
72 cnt=`git format-patch -3 --stdout | grep "^From " | wc -l` &&
76 test_expect_success
"format-patch result applies" '
78 git checkout -b rebuild-0 master &&
80 cnt=`git rev-list master.. | wc -l` &&
84 test_expect_success
"format-patch --ignore-if-in-upstream result applies" '
86 git checkout -b rebuild-1 master &&
88 cnt=`git rev-list master.. | wc -l` &&
92 test_expect_success
'commit did not screw up the log message' '
94 git cat-file commit side | grep "^Side .* with .* backslash-n"
98 test_expect_success
'format-patch did not screw up the log message' '
100 grep "^Subject: .*Side changes #3 with .* backslash-n" patch0 &&
101 grep "^Subject: .*Side changes #3 with .* backslash-n" patch1
105 test_expect_success
'replay did not screw up the log message' '
107 git cat-file commit rebuild-1 | grep "^Side .* with .* backslash-n"
111 test_expect_success
'extra headers' '
113 git config format.headers "To: R. E. Cipient <rcipient@example.com>
115 git config --add format.headers "Cc: S. E. Cipient <scipient@example.com>
117 git format-patch --stdout master..side > patch2 &&
118 sed -e "/^\$/q" patch2 > hdrs2 &&
119 grep "^To: R. E. Cipient <rcipient@example.com>\$" hdrs2 &&
120 grep "^Cc: S. E. Cipient <scipient@example.com>\$" hdrs2
124 test_expect_success
'extra headers without newlines' '
126 git config --replace-all format.headers "To: R. E. Cipient <rcipient@example.com>" &&
127 git config --add format.headers "Cc: S. E. Cipient <scipient@example.com>" &&
128 git format-patch --stdout master..side >patch3 &&
129 sed -e "/^\$/q" patch3 > hdrs3 &&
130 grep "^To: R. E. Cipient <rcipient@example.com>\$" hdrs3 &&
131 grep "^Cc: S. E. Cipient <scipient@example.com>\$" hdrs3
135 test_expect_success
'extra headers with multiple To:s' '
137 git config --replace-all format.headers "To: R. E. Cipient <rcipient@example.com>" &&
138 git config --add format.headers "To: S. E. Cipient <scipient@example.com>" &&
139 git format-patch --stdout master..side > patch4 &&
140 sed -e "/^\$/q" patch4 > hdrs4 &&
141 grep "^To: R. E. Cipient <rcipient@example.com>,\$" hdrs4 &&
142 grep "^ *S. E. Cipient <scipient@example.com>\$" hdrs4
145 test_expect_success
'additional command line cc' '
147 git config --replace-all format.headers "Cc: R. E. Cipient <rcipient@example.com>" &&
148 git format-patch --cc="S. E. Cipient <scipient@example.com>" --stdout master..side | sed -e "/^\$/q" >patch5 &&
149 grep "^Cc: R. E. Cipient <rcipient@example.com>,\$" patch5 &&
150 grep "^ *S. E. Cipient <scipient@example.com>\$" patch5
153 test_expect_success
'command line headers' '
155 git config --unset-all format.headers &&
156 git format-patch --add-header="Cc: R. E. Cipient <rcipient@example.com>" --stdout master..side | sed -e "/^\$/q" >patch6 &&
157 grep "^Cc: R. E. Cipient <rcipient@example.com>\$" patch6
160 test_expect_success
'configuration headers and command line headers' '
162 git config --replace-all format.headers "Cc: R. E. Cipient <rcipient@example.com>" &&
163 git format-patch --add-header="Cc: S. E. Cipient <scipient@example.com>" --stdout master..side | sed -e "/^\$/q" >patch7 &&
164 grep "^Cc: R. E. Cipient <rcipient@example.com>,\$" patch7 &&
165 grep "^ *S. E. Cipient <scipient@example.com>\$" patch7
168 test_expect_success
'command line To: header' '
170 git config --unset-all format.headers &&
171 git format-patch --to="R. E. Cipient <rcipient@example.com>" --stdout master..side | sed -e "/^\$/q" >patch8 &&
172 grep "^To: R. E. Cipient <rcipient@example.com>\$" patch8
175 test_expect_success
'configuration To: header' '
177 git config format.to "R. E. Cipient <rcipient@example.com>" &&
178 git format-patch --stdout master..side | sed -e "/^\$/q" >patch9 &&
179 grep "^To: R. E. Cipient <rcipient@example.com>\$" patch9
182 test_expect_success
'--no-to overrides config.to' '
184 git config --replace-all format.to \
185 "R. E. Cipient <rcipient@example.com>" &&
186 git format-patch --no-to --stdout master..side |
187 sed -e "/^\$/q" >patch10 &&
188 ! grep "^To: R. E. Cipient <rcipient@example.com>\$" patch10
191 test_expect_success
'--no-to and --to replaces config.to' '
193 git config --replace-all format.to \
194 "Someone <someone@out.there>" &&
195 git format-patch --no-to --to="Someone Else <else@out.there>" \
196 --stdout master..side |
197 sed -e "/^\$/q" >patch11 &&
198 ! grep "^To: Someone <someone@out.there>\$" patch11 &&
199 grep "^To: Someone Else <else@out.there>\$" patch11
202 test_expect_success
'--no-cc overrides config.cc' '
204 git config --replace-all format.cc \
205 "C. E. Cipient <rcipient@example.com>" &&
206 git format-patch --no-cc --stdout master..side |
207 sed -e "/^\$/q" >patch12 &&
208 ! grep "^Cc: C. E. Cipient <rcipient@example.com>\$" patch12
211 test_expect_success
'--no-add-headers overrides config.headers' '
213 git config --replace-all format.headers \
214 "Header1: B. E. Cipient <rcipient@example.com>" &&
215 git format-patch --no-add-headers --stdout master..side |
216 sed -e "/^\$/q" >patch13 &&
217 ! grep "^Header1: B. E. Cipient <rcipient@example.com>\$" patch13
220 test_expect_success
'multiple files' '
224 git format-patch -o patches/ master &&
225 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
231 (git format-patch
--stdout "$@"; echo $?
> status.out
) |
232 # Prints everything between the Message-ID and In-Reply-To,
233 # and replaces all Message-ID-lookalikes by a sequence number
235 if (/^(message-id|references|in-reply-to)/i) {
241 $h{$1}=$i++ if (/<([^>]+)>/ and !exists $h{$1});
242 for $k (keys %h) {s/$k/$h{$k}/};
245 print "---\n" if /^From /i;
247 test 0 = "$(cat status.out)" &&
248 test_cmp
"$expect" actual
251 cat >> expect.no-threading
<<EOF
257 test_expect_success
'no threading' '
259 check_threading expect.no-threading master
262 cat > expect.thread
<<EOF
275 test_expect_success
'thread' '
276 check_threading expect.thread --thread master
279 cat > expect.in-reply-to
<<EOF
294 test_expect_success
'thread in-reply-to' '
295 check_threading expect.in-reply-to --in-reply-to="<test.message>" \
299 cat > expect.cover-letter
<<EOF
316 test_expect_success
'thread cover-letter' '
317 check_threading expect.cover-letter --cover-letter --thread master
320 cat > expect.cl-irt
<<EOF
342 test_expect_success
'thread cover-letter in-reply-to' '
343 check_threading expect.cl-irt --cover-letter \
344 --in-reply-to="<test.message>" --thread master
347 test_expect_success
'thread explicit shallow' '
348 check_threading expect.cl-irt --cover-letter \
349 --in-reply-to="<test.message>" --thread=shallow master
352 cat > expect.deep
<<EOF
366 test_expect_success
'thread deep' '
367 check_threading expect.deep --thread=deep master
370 cat > expect.deep-irt
<<EOF
388 test_expect_success
'thread deep in-reply-to' '
389 check_threading expect.deep-irt --thread=deep \
390 --in-reply-to="<test.message>" master
393 cat > expect.deep-cl
<<EOF
413 test_expect_success
'thread deep cover-letter' '
414 check_threading expect.deep-cl --cover-letter --thread=deep master
417 cat > expect.deep-cl-irt
<<EOF
442 test_expect_success
'thread deep cover-letter in-reply-to' '
443 check_threading expect.deep-cl-irt --cover-letter \
444 --in-reply-to="<test.message>" --thread=deep master
447 test_expect_success
'thread via config' '
448 git config format.thread true &&
449 check_threading expect.thread master
452 test_expect_success
'thread deep via config' '
453 git config format.thread deep &&
454 check_threading expect.deep master
457 test_expect_success
'thread config + override' '
458 git config format.thread deep &&
459 check_threading expect.thread --thread master
462 test_expect_success
'thread config + --no-thread' '
463 git config format.thread deep &&
464 check_threading expect.no-threading --no-thread master
467 test_expect_success
'excessive subject' '
471 for i in 5 6 1 2 3 A 4 B C 7 8 9 10 D E F; do echo "$i"; done >>file &&
472 git update-index file &&
473 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." &&
474 git format-patch -o patches/ master..side &&
475 ls patches/0004-This-is-an-excessively-long-subject-line-for-a-messa.patch
478 test_expect_success
'cover-letter inherits diff options' '
482 git format-patch --cover-letter -1 &&
483 ! grep "file => foo .* 0 *\$" 0000-cover-letter.patch &&
484 git format-patch --cover-letter -1 -M &&
485 grep "file => foo .* 0 *\$" 0000-cover-letter.patch
490 This is an excessively long subject line for a message due to the
491 habit some projects have of not having a short, one-line subject at
492 the start of the commit message, but rather sticking a whole
493 paragraph right at the start as the only thing in the commit
494 message. It had better not become the filename for the patch.
499 test_expect_success
'shortlog of cover-letter wraps overly-long onelines' '
501 git format-patch --cover-letter -2 &&
502 sed -e "1,/A U Thor/d" -e "/^\$/q" < 0000-cover-letter.patch > output &&
503 test_cmp expect output
509 file | 16 ++++++++++++++++
510 1 files changed, 16 insertions(+), 0 deletions(-)
512 diff --git a/file b/file
513 index 40f36c6..2dc5c23 100644
524 test_expect_success
'format-patch respects -U' '
526 git format-patch -U4 -2 &&
527 sed -e "1,/^\$/d" -e "/^+5/q" < 0001-This-is-an-excessively-long-subject-line-for-a-messa.patch > output &&
528 test_cmp expect output
534 diff --git a/file b/file
535 index 40f36c6..2dc5c23 100644
545 test_expect_success
'format-patch -p suppresses stat' '
547 git format-patch -p -2 &&
548 sed -e "1,/^\$/d" -e "/^+5/q" < 0001-This-is-an-excessively-long-subject-line-for-a-messa.patch > output &&
549 test_cmp expect output
553 test_expect_success
'format-patch from a subdirectory (1)' '
564 echo "Oops? $filename"
571 test_expect_success
'format-patch from a subdirectory (2)' '
576 git format-patch -1 -o ..
582 echo "Oops? $filename"
586 basename=$(expr "$filename" : ".*/\(.*\)") &&
587 test -f "sub/$basename"
590 test_expect_success
'format-patch from a subdirectory (3)' '
596 git format-patch -1 -o "$TRASH_DIRECTORY"
598 basename=$(expr "$filename" : ".*/\(.*\)") &&
602 test_expect_success
'format-patch --in-reply-to' '
603 git format-patch -1 --stdout --in-reply-to "baz@foo.bar" > patch8 &&
604 grep "^In-Reply-To: <baz@foo.bar>" patch8 &&
605 grep "^References: <baz@foo.bar>" patch8
608 test_expect_success
'format-patch --signoff' '
609 git format-patch -1 --signoff --stdout |
610 grep "^Signed-off-by: $GIT_COMMITTER_NAME <$GIT_COMMITTER_EMAIL>"
613 echo "fatal: --name-only does not make sense" > expect.name-only
614 echo "fatal: --name-status does not make sense" > expect.name-status
615 echo "fatal: --check does not make sense" > expect.check
617 test_expect_success
'options no longer allowed for format-patch' '
618 test_must_fail git format-patch --name-only 2> output &&
619 test_i18ncmp expect.name-only output &&
620 test_must_fail git format-patch --name-status 2> output &&
621 test_i18ncmp expect.name-status output &&
622 test_must_fail git format-patch --check 2> output &&
623 test_i18ncmp expect.check output'
625 test_expect_success
'format-patch --numstat should produce a patch' '
626 git format-patch --numstat --stdout master..side > output &&
627 test 6 = $(grep "^diff --git a/" output | wc -l)'
629 test_expect_success
'format-patch -- <path>' '
630 git format-patch master..side -- file 2>error &&
631 ! grep "Use .--" error
634 test_expect_success
'format-patch --ignore-if-in-upstream HEAD' '
635 git format-patch --ignore-if-in-upstream HEAD
638 test_expect_success
'format-patch --signature' '
639 git format-patch --stdout --signature="my sig" -1 >output &&
643 test_expect_success
'format-patch with format.signature config' '
644 git config format.signature "config sig" &&
645 git format-patch --stdout -1 >output &&
646 grep "config sig" output
649 test_expect_success
'format-patch --signature overrides format.signature' '
650 git config format.signature "config sig" &&
651 git format-patch --stdout --signature="overrides" -1 >output &&
652 ! grep "config sig" output &&
653 grep "overrides" output
656 test_expect_success
'format-patch --no-signature ignores format.signature' '
657 git config format.signature "config sig" &&
658 git format-patch --stdout --signature="my sig" --no-signature \
660 ! grep "config sig" output &&
661 ! grep "my sig" output &&
662 ! grep "^-- \$" output
665 test_expect_success
'format-patch --signature --cover-letter' '
666 git config --unset-all format.signature &&
667 git format-patch --stdout --signature="my sig" --cover-letter \
669 grep "my sig" output &&
670 test 2 = $(grep "my sig" output | wc -l)
673 test_expect_success
'format.signature="" supresses signatures' '
674 git config format.signature "" &&
675 git format-patch --stdout -1 >output &&
676 ! grep "^-- \$" output
679 test_expect_success
'format-patch --no-signature supresses signatures' '
680 git config --unset-all format.signature &&
681 git format-patch --stdout --no-signature -1 >output &&
682 ! grep "^-- \$" output
685 test_expect_success
'format-patch --signature="" supresses signatures' '
686 git format-patch --signature="" -1 >output &&
687 ! grep "^-- \$" output
690 test_expect_success TTY
'format-patch --stdout paginates' '
693 GIT_PAGER="wc >pager_used" &&
695 test_terminal git format-patch --stdout --all
697 test_path_is_file pager_used
700 test_expect_success TTY
'format-patch --stdout pagination can be disabled' '
703 GIT_PAGER="wc >pager_used" &&
705 test_terminal git --no-pager format-patch --stdout --all &&
706 test_terminal git -c "pager.format-patch=false" format-patch --stdout --all
708 test_path_is_missing pager_used &&
709 test_path_is_missing .git/pager_used
712 test_expect_success
'format-patch handles multi-line subjects' '
714 echo content >>file &&
715 for i in one two three; do echo $i; done >msg &&
718 git format-patch -o patches -1 &&
719 grep ^Subject: patches/0001-one.patch >actual &&
720 echo "Subject: [PATCH] one two three" >expect &&
721 test_cmp expect actual
724 test_expect_success
'format-patch handles multi-line encoded subjects' '
726 echo content >>file &&
727 for i in en två tre; do echo $i; done >msg &&
730 git format-patch -o patches -1 &&
731 grep ^Subject: patches/0001-en.patch >actual &&
732 echo "Subject: [PATCH] =?UTF-8?q?en=20tv=C3=A5=20tre?=" >expect &&
733 test_cmp expect actual
737 M64
=$M8$M8$M8$M8$M8$M8$M8$M8
738 M512
=$M64$M64$M64$M64$M64$M64$M64$M64
740 Subject: [PATCH] foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo
741 bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
742 foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo
743 bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
744 foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo
745 bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
746 foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo
747 bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
748 foo bar foo bar foo bar foo bar
750 test_expect_success
'format-patch wraps extremely long headers (ascii)' '
751 echo content >>file &&
753 git commit -m "$M512" &&
754 git format-patch --stdout -1 >patch &&
755 sed -n "/^Subject/p; /^ /p; /^$/q" <patch >subject &&
756 test_cmp expect subject
760 M64
=$M8$M8$M8$M8$M8$M8$M8$M8
761 M512
=$M64$M64$M64$M64$M64$M64$M64$M64
763 Subject: [PATCH] =?UTF-8?q?f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
764 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
765 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
766 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
767 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
768 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
769 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
770 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
771 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
772 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
773 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
774 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
775 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
776 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
777 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
778 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
779 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
780 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
781 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
782 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
783 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6=C3=B6=20bar=20f=C3=B6?=
784 =?UTF-8?q?=C3=B6=20bar=20f=C3=B6=C3=B6=20bar?=
786 test_expect_success
'format-patch wraps extremely long headers (rfc2047)' '
788 echo content >>file &&
790 git commit -m "$M512" &&
791 git format-patch --stdout -1 >patch &&
792 sed -n "/^Subject/p; /^ /p; /^$/q" <patch >subject &&
793 test_cmp expect subject
797 M64
=$M8$M8$M8$M8$M8$M8$M8$M8
802 test_expect_success
'format-patch wraps non-quotable headers' '
804 echo content >>file &&
806 git commit -mfoo --author "$M64 <foobar@foo.bar>" &&
807 git format-patch --stdout -1 >patch &&
808 sed -n "/^From: /p; /^ /p; /^$/q" <patch >from &&
813 echo content
>>file &&
815 GIT_AUTHOR_NAME
=$1 git commit
-m author-check
&&
816 git format-patch
--stdout -1 >patch &&
817 grep ^From
: patch >actual
&&
818 test_cmp expect actual
822 From: "Foo B. Bar" <author@example.com>
824 test_expect_success
'format-patch quotes dot in headers' '
825 check_author "Foo B. Bar"
829 From: "Foo \"The Baz\" Bar" <author@example.com>
831 test_expect_success
'format-patch quotes double-quote in headers' '
832 check_author "Foo \"The Baz\" Bar"
836 From: =?UTF-8?q?"F=C3=B6o=20B.=20Bar"?= <author@example.com>
838 test_expect_success
'rfc2047-encoded headers also double-quote 822 specials' '
839 check_author "Föo B. Bar"
843 Subject: header with . in it
845 test_expect_success
'subject lines do not have 822 atom-quoting' '
846 echo content >>file &&
848 git commit -m "header with . in it" &&
849 git format-patch -k -1 --stdout >patch &&
850 grep ^Subject: patch >actual &&
851 test_cmp expect actual
855 Subject: [PREFIX 1/1] header with . in it
857 test_expect_success
'subject prefixes have space prepended' '
858 git format-patch -n -1 --stdout --subject-prefix=PREFIX >patch &&
859 grep ^Subject: patch >actual &&
860 test_cmp expect actual
864 Subject: [1/1] header with . in it
866 test_expect_success
'empty subject prefix does not have extra space' '
867 git format-patch -n -1 --stdout --subject-prefix= >patch &&
868 grep ^Subject: patch >actual &&
869 test_cmp expect actual