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-rwxr-xr-xt/t4014-format-patch.sh441
1 files changed, 408 insertions, 33 deletions
diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index 922a8941ed..959aa26ef5 100755
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -6,30 +6,36 @@
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"
'
@@ -51,6 +57,22 @@ test_expect_success "format-patch --ignore-if-in-upstream" '
'
+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 $cnt = 3
+'
+
test_expect_success "format-patch result applies" '
git checkout -b rebuild-0 master &&
@@ -93,9 +115,9 @@ test_expect_success 'extra headers' '
git config --add format.headers "Cc: S. E. Cipient <scipient@example.com>
" &&
git format-patch --stdout master..side > patch2 &&
- sed -e "/^$/q" patch2 > hdrs2 &&
- grep "^To: R. E. Cipient <rcipient@example.com>$" hdrs2 &&
- grep "^Cc: S. E. Cipient <scipient@example.com>$" hdrs2
+ sed -e "/^\$/q" patch2 > hdrs2 &&
+ grep "^To: R. E. Cipient <rcipient@example.com>\$" hdrs2 &&
+ grep "^Cc: S. E. Cipient <scipient@example.com>\$" hdrs2
'
@@ -104,9 +126,9 @@ 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>$" hdrs3
+ sed -e "/^\$/q" patch3 > hdrs3 &&
+ grep "^To: R. E. Cipient <rcipient@example.com>\$" hdrs3 &&
+ grep "^Cc: S. E. Cipient <scipient@example.com>\$" hdrs3
'
@@ -115,32 +137,96 @@ test_expect_success 'extra headers with multiple To:s' '
git config --replace-all format.headers "To: R. E. Cipient <rcipient@example.com>" &&
git config --add format.headers "To: S. E. Cipient <scipient@example.com>" &&
git format-patch --stdout master..side > patch4 &&
- sed -e "/^$/q" patch4 > hdrs4 &&
- grep "^To: R. E. Cipient <rcipient@example.com>,$" hdrs4 &&
- grep "^ *S. E. Cipient <scipient@example.com>$" hdrs4
+ 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>$" patch5
+ git format-patch --cc="S. E. Cipient <scipient@example.com>" --stdout master..side | sed -e "/^\$/q" >patch5 &&
+ grep "^Cc: R. E. Cipient <rcipient@example.com>,\$" patch5 &&
+ grep "^ *S. E. Cipient <scipient@example.com>\$" patch5
'
test_expect_success 'command line headers' '
git config --unset-all format.headers &&
- git format-patch --add-header="Cc: R. E. Cipient <rcipient@example.com>" --stdout master..side | sed -e "/^$/q" >patch6 &&
- grep "^Cc: R. E. Cipient <rcipient@example.com>$" patch6
+ git format-patch --add-header="Cc: R. E. Cipient <rcipient@example.com>" --stdout master..side | sed -e "/^\$/q" >patch6 &&
+ grep "^Cc: R. E. Cipient <rcipient@example.com>\$" patch6
'
test_expect_success 'configuration headers and command line headers' '
git config --replace-all format.headers "Cc: R. E. Cipient <rcipient@example.com>" &&
- git format-patch --add-header="Cc: S. E. Cipient <scipient@example.com>" --stdout master..side | sed -e "/^$/q" >patch7 &&
- grep "^Cc: R. E. Cipient <rcipient@example.com>,$" patch7 &&
- grep "^ *S. E. Cipient <scipient@example.com>$" patch7
+ 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
+'
+
+# check_patch <patch>: Verify that <patch> looks like a half-sane
+# patch email to avoid a false positive with !grep
+check_patch () {
+ grep -e "^From:" "$1" &&
+ grep -e "^Date:" "$1" &&
+ grep -e "^Subject:" "$1"
+}
+
+test_expect_success '--no-to overrides config.to' '
+
+ git config --replace-all format.to \
+ "R. E. Cipient <rcipient@example.com>" &&
+ git format-patch --no-to --stdout master..side |
+ sed -e "/^\$/q" >patch10 &&
+ check_patch patch10 &&
+ ! grep "^To: R. E. Cipient <rcipient@example.com>\$" patch10
+'
+
+test_expect_success '--no-to and --to replaces config.to' '
+
+ git config --replace-all format.to \
+ "Someone <someone@out.there>" &&
+ git format-patch --no-to --to="Someone Else <else@out.there>" \
+ --stdout master..side |
+ sed -e "/^\$/q" >patch11 &&
+ check_patch patch11 &&
+ ! grep "^To: Someone <someone@out.there>\$" patch11 &&
+ grep "^To: Someone Else <else@out.there>\$" patch11
+'
+
+test_expect_success '--no-cc overrides config.cc' '
+
+ git config --replace-all format.cc \
+ "C. E. Cipient <rcipient@example.com>" &&
+ git format-patch --no-cc --stdout master..side |
+ sed -e "/^\$/q" >patch12 &&
+ check_patch patch12 &&
+ ! grep "^Cc: C. E. Cipient <rcipient@example.com>\$" patch12
+'
+
+test_expect_success '--no-add-header overrides config.headers' '
+
+ git config --replace-all format.headers \
+ "Header1: B. E. Cipient <rcipient@example.com>" &&
+ git format-patch --no-add-header --stdout master..side |
+ sed -e "/^\$/q" >patch13 &&
+ check_patch patch13 &&
+ ! grep "^Header1: B. E. Cipient <rcipient@example.com>\$" patch13
'
test_expect_success 'multiple files' '
@@ -157,7 +243,7 @@ check_threading () {
(git format-patch --stdout "$@"; echo $? > status.out) |
# Prints everything between the Message-ID and In-Reply-To,
# and replaces all Message-ID-lookalikes by a sequence number
- perl -ne '
+ "$PERL_PATH" -ne '
if (/^(message-id|references|in-reply-to)/i) {
$printing = 1;
} elsif (/^\S/) {
@@ -371,22 +457,22 @@ test_expect_success 'thread deep cover-letter in-reply-to' '
'
test_expect_success 'thread via config' '
- git config format.thread true &&
+ test_config format.thread true &&
check_threading expect.thread master
'
test_expect_success 'thread deep via config' '
- git config format.thread deep &&
+ test_config format.thread deep &&
check_threading expect.deep master
'
test_expect_success 'thread config + override' '
- git config format.thread deep &&
+ test_config format.thread deep &&
check_threading expect.thread --thread master
'
test_expect_success 'thread config + --no-thread' '
- git config format.thread deep &&
+ test_config format.thread deep &&
check_threading expect.no-threading --no-thread master
'
@@ -406,9 +492,10 @@ test_expect_success 'cover-letter inherits diff options' '
git mv file foo &&
git commit -m foo &&
git format-patch --cover-letter -1 &&
- ! grep "file => foo .* 0 *$" 0000-cover-letter.patch &&
+ check_patch 0000-cover-letter.patch &&
+ ! grep "file => foo .* 0 *\$" 0000-cover-letter.patch &&
git format-patch --cover-letter -1 -M &&
- grep "file => foo .* 0 *$" 0000-cover-letter.patch
+ grep "file => foo .* 0 *\$" 0000-cover-letter.patch
'
@@ -425,17 +512,12 @@ EOF
test_expect_success 'shortlog of cover-letter wraps overly-long onelines' '
git format-patch --cover-letter -2 &&
- sed -e "1,/A U Thor/d" -e "/^$/q" < 0000-cover-letter.patch > output &&
+ 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
@@ -450,7 +532,30 @@ EOF
test_expect_success 'format-patch respects -U' '
git format-patch -U4 -2 &&
- sed -e "1,/^$/d" -e "/^+5/q" < 0001-This-is-an-excessively-long-subject-line-for-a-messa.patch > output &&
+ sed -e "1,/^diff/d" -e "/^+5/q" \
+ <0001-This-is-an-excessively-long-subject-line-for-a-messa.patch \
+ >output &&
+ test_cmp expect output
+
+'
+
+cat > expect << EOF
+
+diff --git a/file b/file
+index 40f36c6..2dc5c23 100644
+--- a/file
++++ b/file
+@@ -14,3 +14,19 @@ C
+ D
+ E
+ F
++5
+EOF
+
+test_expect_success 'format-patch -p suppresses stat' '
+
+ git format-patch -p -2 &&
+ sed -e "1,/^\$/d" -e "/^+5/q" < 0001-This-is-an-excessively-long-subject-line-for-a-messa.patch > output &&
test_cmp expect output
'
@@ -493,13 +598,12 @@ test_expect_success 'format-patch from a subdirectory (2)' '
'
test_expect_success 'format-patch from a subdirectory (3)' '
- here="$TEST_DIRECTORY/$test" &&
rm -f 0* &&
filename=$(
rm -rf sub &&
mkdir -p sub/dir &&
cd sub/dir &&
- git format-patch -1 -o "$here"
+ git format-patch -1 -o "$TRASH_DIRECTORY"
) &&
basename=$(expr "$filename" : ".*/\(.*\)") &&
test -f "$basename"
@@ -516,4 +620,275 @@ test_expect_success 'format-patch --signoff' '
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 &&
+ check_patch 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 &&
+ check_patch 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 &&
+ check_patch output &&
+ ! grep "^-- \$" output
+'
+
+test_expect_success 'format-patch --signature="" supresses signatures' '
+ git format-patch --stdout --signature="" -1 >output &&
+ check_patch 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
+'
+
+check_author() {
+ echo content >>file &&
+ git add file &&
+ GIT_AUTHOR_NAME=$1 git commit -m author-check &&
+ git format-patch --stdout -1 >patch &&
+ grep ^From: patch >actual &&
+ test_cmp expect actual
+}
+
+cat >expect <<'EOF'
+From: "Foo B. Bar" <author@example.com>
+EOF
+test_expect_success 'format-patch quotes dot in headers' '
+ check_author "Foo B. Bar"
+'
+
+cat >expect <<'EOF'
+From: "Foo \"The Baz\" Bar" <author@example.com>
+EOF
+test_expect_success 'format-patch quotes double-quote in headers' '
+ check_author "Foo \"The Baz\" Bar"
+'
+
+cat >expect <<'EOF'
+From: =?UTF-8?q?"F=C3=B6o=20B.=20Bar"?= <author@example.com>
+EOF
+test_expect_success 'rfc2047-encoded headers also double-quote 822 specials' '
+ check_author "Föo B. Bar"
+'
+
+cat >expect <<'EOF'
+Subject: header with . in it
+EOF
+test_expect_success 'subject lines do not have 822 atom-quoting' '
+ echo content >>file &&
+ git add file &&
+ git commit -m "header with . in it" &&
+ git format-patch -k -1 --stdout >patch &&
+ grep ^Subject: patch >actual &&
+ test_cmp expect actual
+'
+
+cat >expect <<'EOF'
+Subject: [PREFIX 1/1] header with . in it
+EOF
+test_expect_success 'subject prefixes have space prepended' '
+ git format-patch -n -1 --stdout --subject-prefix=PREFIX >patch &&
+ grep ^Subject: patch >actual &&
+ test_cmp expect actual
+'
+
+cat >expect <<'EOF'
+Subject: [1/1] header with . in it
+EOF
+test_expect_success 'empty subject prefix does not have extra space' '
+ git format-patch -n -1 --stdout --subject-prefix= >patch &&
+ grep ^Subject: patch >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'format patch ignores color.ui' '
+ test_unconfig color.ui &&
+ git format-patch --stdout -1 >expect &&
+ test_config color.ui always &&
+ git format-patch --stdout -1 >actual &&
+ test_cmp expect actual
+'
+
test_done