Merge branch 'js/maint-1.6.6-send-pack-stateless-rpc-deadlock-fix' into js/maint-send-pack-stateless-rpc-deadlock-fix
[gitweb.git] / t / t9001-send-email.sh
index d7634187aaa82578dbabbccd6866319b40356854..c09f37528811f9395d63e3f3acd1f598307983a2 100755 (executable)
@@ -3,6 +3,11 @@
 test_description='git send-email'
 . ./test-lib.sh
 
+if ! test_have_prereq PERL; then
+       say 'skipping git send-email tests, perl not available'
+       test_done
+fi
+
 PROG='git send-email'
 test_expect_success \
     'prepare reference tree' \
@@ -35,6 +40,47 @@ test_expect_success 'Extract patches' '
     patches=`git format-patch -s --cc="One <one@example.com>" --cc=two@example.com -n HEAD^1`
 '
 
+# Test no confirm early to ensure remaining tests will not hang
+test_no_confirm () {
+       rm -f no_confirm_okay
+       echo n | \
+               GIT_SEND_EMAIL_NOTTY=1 \
+               git send-email \
+               --from="Example <from@example.com>" \
+               --to=nobody@example.com \
+               --smtp-server="$(pwd)/fake.sendmail" \
+               $@ \
+               $patches > stdout &&
+               test_must_fail grep "Send this email" stdout &&
+               > no_confirm_okay
+}
+
+# Exit immediately to prevent hang if a no-confirm test fails
+check_no_confirm () {
+       test -f no_confirm_okay || {
+               say 'No confirm test failed; skipping remaining tests to prevent hanging'
+               test_done
+       }
+}
+
+test_expect_success 'No confirm with --suppress-cc' '
+       test_no_confirm --suppress-cc=sob
+'
+check_no_confirm
+
+test_expect_success 'No confirm with --confirm=never' '
+       test_no_confirm --confirm=never
+'
+check_no_confirm
+
+# leave sendemail.confirm set to never after this so that none of the
+# remaining tests prompt unintentionally.
+test_expect_success 'No confirm with sendemail.confirm=never' '
+       git config sendemail.confirm never &&
+       test_no_confirm --compose --subject=foo
+'
+check_no_confirm
+
 test_expect_success 'Send patches' '
      git send-email --suppress-cc=sob --from="Example <nobody@example.com>" --to=nobody@example.com --smtp-server="$(pwd)/fake.sendmail" $patches 2>errors
 '
@@ -47,7 +93,41 @@ cat >expected <<\EOF
 EOF
 test_expect_success \
     'Verify commandline' \
-    'diff commandline1 expected'
+    'test_cmp expected commandline1'
+
+test_expect_success 'Send patches with --envelope-sender' '
+    clean_fake_sendmail &&
+     git send-email --envelope-sender="Patch Contributer <patch@example.com>" --suppress-cc=sob --from="Example <nobody@example.com>" --to=nobody@example.com --smtp-server="$(pwd)/fake.sendmail" $patches 2>errors
+'
+
+cat >expected <<\EOF
+!patch@example.com!
+!-i!
+!nobody@example.com!
+!author@example.com!
+!one@example.com!
+!two@example.com!
+EOF
+test_expect_success \
+    'Verify commandline' \
+    'test_cmp expected commandline1'
+
+test_expect_success 'Send patches with --envelope-sender=auto' '
+    clean_fake_sendmail &&
+     git send-email --envelope-sender=auto --suppress-cc=sob --from="Example <nobody@example.com>" --to=nobody@example.com --smtp-server="$(pwd)/fake.sendmail" $patches 2>errors
+'
+
+cat >expected <<\EOF
+!nobody@example.com!
+!-i!
+!nobody@example.com!
+!author@example.com!
+!one@example.com!
+!two@example.com!
+EOF
+test_expect_success \
+    'Verify commandline' \
+    'test_cmp expected commandline1'
 
 cat >expected-show-all-headers <<\EOF
 0001-Second.patch
@@ -57,10 +137,18 @@ cat >expected-show-all-headers <<\EOF
 Dry-OK. Log says:
 Server: relay.example.com
 MAIL FROM:<from@example.com>
-RCPT TO:<to@example.com>,<cc@example.com>,<author@example.com>,<one@example.com>,<two@example.com>,<bcc@example.com>
+RCPT TO:<to@example.com>
+RCPT TO:<cc@example.com>
+RCPT TO:<author@example.com>
+RCPT TO:<one@example.com>
+RCPT TO:<two@example.com>
+RCPT TO:<bcc@example.com>
 From: Example <from@example.com>
 To: to@example.com
-Cc: cc@example.com, A <author@example.com>, One <one@example.com>, two@example.com
+Cc: cc@example.com,
+       A <author@example.com>,
+       One <one@example.com>,
+       two@example.com
 Subject: [PATCH 1/1] Second.
 Date: DATE-STRING
 Message-Id: MESSAGE-ID-STRING
@@ -89,6 +177,38 @@ test_expect_success 'Show all headers' '
        test_cmp expected-show-all-headers actual-show-all-headers
 '
 
+test_expect_success 'Prompting works' '
+       clean_fake_sendmail &&
+       (echo "Example <from@example.com>"
+        echo "to@example.com"
+        echo ""
+       ) | GIT_SEND_EMAIL_NOTTY=1 git send-email \
+               --smtp-server="$(pwd)/fake.sendmail" \
+               $patches \
+               2>errors &&
+               grep "^From: Example <from@example.com>\$" msgtxt1 &&
+               grep "^To: to@example.com\$" msgtxt1
+'
+
+test_expect_success 'cccmd works' '
+       clean_fake_sendmail &&
+       cp $patches cccmd.patch &&
+       echo cccmd--cccmd@example.com >>cccmd.patch &&
+       {
+         echo "#!$SHELL_PATH"
+         echo sed -n -e s/^cccmd--//p \"\$1\"
+       } > cccmd-sed &&
+       chmod +x cccmd-sed &&
+       git send-email \
+               --from="Example <nobody@example.com>" \
+               --to=nobody@example.com \
+               --cc-cmd=./cccmd-sed \
+               --smtp-server="$(pwd)/fake.sendmail" \
+               cccmd.patch \
+               &&
+       grep "^ cccmd@example.com" msgtxt1
+'
+
 z8=zzzzzzzz
 z64=$z8$z8$z8$z8$z8$z8$z8$z8
 z512=$z64$z64$z64$z64$z64$z64$z64$z64
@@ -116,7 +236,7 @@ test_expect_success 'Author From: in message body' '
                --to=nobody@example.com \
                --smtp-server="$(pwd)/fake.sendmail" \
                $patches &&
-       sed "1,/^$/d" < msgtxt1 > msgbody1
+       sed "1,/^\$/d" < msgtxt1 > msgbody1
        grep "From: A <author@example.com>" msgbody1
 '
 
@@ -127,7 +247,7 @@ test_expect_success 'Author From: not in message body' '
                --to=nobody@example.com \
                --smtp-server="$(pwd)/fake.sendmail" \
                $patches &&
-       sed "1,/^$/d" < msgtxt1 > msgbody1
+       sed "1,/^\$/d" < msgtxt1 > msgbody1
        ! grep "From: A <author@example.com>" msgbody1
 '
 
@@ -175,15 +295,13 @@ test_set_editor "$(pwd)/fake-editor"
 
 test_expect_success '--compose works' '
        clean_fake_sendmail &&
-       echo y | \
-               GIT_SEND_EMAIL_NOTTY=1 \
-               git send-email \
-               --compose --subject foo \
-               --from="Example <nobody@example.com>" \
-               --to=nobody@example.com \
-               --smtp-server="$(pwd)/fake.sendmail" \
-               $patches \
-               2>errors
+       git send-email \
+       --compose --subject foo \
+       --from="Example <nobody@example.com>" \
+       --to=nobody@example.com \
+       --smtp-server="$(pwd)/fake.sendmail" \
+       $patches \
+       2>errors
 '
 
 test_expect_success 'first message is compose text' '
@@ -202,10 +320,17 @@ cat >expected-suppress-sob <<\EOF
 Dry-OK. Log says:
 Server: relay.example.com
 MAIL FROM:<from@example.com>
-RCPT TO:<to@example.com>,<cc@example.com>,<author@example.com>,<one@example.com>,<two@example.com>
+RCPT TO:<to@example.com>
+RCPT TO:<cc@example.com>
+RCPT TO:<author@example.com>
+RCPT TO:<one@example.com>
+RCPT TO:<two@example.com>
 From: Example <from@example.com>
 To: to@example.com
-Cc: cc@example.com, A <author@example.com>, One <one@example.com>, two@example.com
+Cc: cc@example.com,
+       A <author@example.com>,
+       One <one@example.com>,
+       two@example.com
 Subject: [PATCH 1/1] Second.
 Date: DATE-STRING
 Message-Id: MESSAGE-ID-STRING
@@ -217,7 +342,7 @@ EOF
 test_suppression () {
        git send-email \
                --dry-run \
-               --suppress-cc=$1 \
+               --suppress-cc=$1 ${2+"--suppress-cc=$2"} \
                --from="Example <from@example.com>" \
                --to=to@example.com \
                --smtp-server relay.example.com \
@@ -225,8 +350,8 @@ test_suppression () {
        sed     -e "s/^\(Date:\).*/\1 DATE-STRING/" \
                -e "s/^\(Message-Id:\).*/\1 MESSAGE-ID-STRING/" \
                -e "s/^\(X-Mailer:\).*/\1 X-MAILER-STRING/" \
-               >actual-suppress-$1 &&
-       test_cmp expected-suppress-$1 actual-suppress-$1
+               >actual-suppress-$1${2+"-$2"} &&
+       test_cmp expected-suppress-$1${2+"-$2"} actual-suppress-$1${2+"-$2"}
 }
 
 test_expect_success 'sendemail.cc set' '
@@ -242,10 +367,15 @@ cat >expected-suppress-sob <<\EOF
 Dry-OK. Log says:
 Server: relay.example.com
 MAIL FROM:<from@example.com>
-RCPT TO:<to@example.com>,<author@example.com>,<one@example.com>,<two@example.com>
+RCPT TO:<to@example.com>
+RCPT TO:<author@example.com>
+RCPT TO:<one@example.com>
+RCPT TO:<two@example.com>
 From: Example <from@example.com>
 To: to@example.com
-Cc: A <author@example.com>, One <one@example.com>, two@example.com
+Cc: A <author@example.com>,
+       One <one@example.com>,
+       two@example.com
 Subject: [PATCH 1/1] Second.
 Date: DATE-STRING
 Message-Id: MESSAGE-ID-STRING
@@ -259,6 +389,41 @@ test_expect_success 'sendemail.cc unset' '
        test_suppression sob
 '
 
+cat >expected-suppress-cccmd <<\EOF
+0001-Second.patch
+(mbox) Adding cc: A <author@example.com> from line 'From: A <author@example.com>'
+(mbox) Adding cc: One <one@example.com> from line 'Cc: One <one@example.com>, two@example.com'
+(mbox) Adding cc: two@example.com from line 'Cc: One <one@example.com>, two@example.com'
+(body) Adding cc: C O Mitter <committer@example.com> from line 'Signed-off-by: C O Mitter <committer@example.com>'
+Dry-OK. Log says:
+Server: relay.example.com
+MAIL FROM:<from@example.com>
+RCPT TO:<to@example.com>
+RCPT TO:<author@example.com>
+RCPT TO:<one@example.com>
+RCPT TO:<two@example.com>
+RCPT TO:<committer@example.com>
+From: Example <from@example.com>
+To: to@example.com
+Cc: A <author@example.com>,
+       One <one@example.com>,
+       two@example.com,
+       C O Mitter <committer@example.com>
+Subject: [PATCH 1/1] Second.
+Date: DATE-STRING
+Message-Id: MESSAGE-ID-STRING
+X-Mailer: X-MAILER-STRING
+
+Result: OK
+EOF
+
+test_expect_success 'sendemail.cccmd' '
+       echo echo cc-cmd@example.com > cccmd &&
+       chmod +x cccmd &&
+       git config sendemail.cccmd ./cccmd &&
+       test_suppression cccmd
+'
+
 cat >expected-suppress-all <<\EOF
 0001-Second.patch
 Dry-OK. Log says:
@@ -284,13 +449,21 @@ cat >expected-suppress-body <<\EOF
 (mbox) Adding cc: A <author@example.com> from line 'From: A <author@example.com>'
 (mbox) Adding cc: One <one@example.com> from line 'Cc: One <one@example.com>, two@example.com'
 (mbox) Adding cc: two@example.com from line 'Cc: One <one@example.com>, two@example.com'
+(cc-cmd) Adding cc: cc-cmd@example.com from: './cccmd'
 Dry-OK. Log says:
 Server: relay.example.com
 MAIL FROM:<from@example.com>
-RCPT TO:<to@example.com>,<author@example.com>,<one@example.com>,<two@example.com>
+RCPT TO:<to@example.com>
+RCPT TO:<author@example.com>
+RCPT TO:<one@example.com>
+RCPT TO:<two@example.com>
+RCPT TO:<cc-cmd@example.com>
 From: Example <from@example.com>
 To: to@example.com
-Cc: A <author@example.com>, One <one@example.com>, two@example.com
+Cc: A <author@example.com>,
+       One <one@example.com>,
+       two@example.com,
+       cc-cmd@example.com
 Subject: [PATCH 1/1] Second.
 Date: DATE-STRING
 Message-Id: MESSAGE-ID-STRING
@@ -303,6 +476,35 @@ test_expect_success '--suppress-cc=body' '
        test_suppression body
 '
 
+cat >expected-suppress-body-cccmd <<\EOF
+0001-Second.patch
+(mbox) Adding cc: A <author@example.com> from line 'From: A <author@example.com>'
+(mbox) Adding cc: One <one@example.com> from line 'Cc: One <one@example.com>, two@example.com'
+(mbox) Adding cc: two@example.com from line 'Cc: One <one@example.com>, two@example.com'
+Dry-OK. Log says:
+Server: relay.example.com
+MAIL FROM:<from@example.com>
+RCPT TO:<to@example.com>
+RCPT TO:<author@example.com>
+RCPT TO:<one@example.com>
+RCPT TO:<two@example.com>
+From: Example <from@example.com>
+To: to@example.com
+Cc: A <author@example.com>,
+       One <one@example.com>,
+       two@example.com
+Subject: [PATCH 1/1] Second.
+Date: DATE-STRING
+Message-Id: MESSAGE-ID-STRING
+X-Mailer: X-MAILER-STRING
+
+Result: OK
+EOF
+
+test_expect_success '--suppress-cc=body --suppress-cc=cccmd' '
+       test_suppression body cccmd
+'
+
 cat >expected-suppress-sob <<\EOF
 0001-Second.patch
 (mbox) Adding cc: A <author@example.com> from line 'From: A <author@example.com>'
@@ -311,10 +513,15 @@ cat >expected-suppress-sob <<\EOF
 Dry-OK. Log says:
 Server: relay.example.com
 MAIL FROM:<from@example.com>
-RCPT TO:<to@example.com>,<author@example.com>,<one@example.com>,<two@example.com>
+RCPT TO:<to@example.com>
+RCPT TO:<author@example.com>
+RCPT TO:<one@example.com>
+RCPT TO:<two@example.com>
 From: Example <from@example.com>
 To: to@example.com
-Cc: A <author@example.com>, One <one@example.com>, two@example.com
+Cc: A <author@example.com>,
+       One <one@example.com>,
+       two@example.com
 Subject: [PATCH 1/1] Second.
 Date: DATE-STRING
 Message-Id: MESSAGE-ID-STRING
@@ -324,6 +531,7 @@ Result: OK
 EOF
 
 test_expect_success '--suppress-cc=sob' '
+       git config --unset sendemail.cccmd
        test_suppression sob
 '
 
@@ -336,10 +544,17 @@ cat >expected-suppress-bodycc <<\EOF
 Dry-OK. Log says:
 Server: relay.example.com
 MAIL FROM:<from@example.com>
-RCPT TO:<to@example.com>,<author@example.com>,<one@example.com>,<two@example.com>,<committer@example.com>
+RCPT TO:<to@example.com>
+RCPT TO:<author@example.com>
+RCPT TO:<one@example.com>
+RCPT TO:<two@example.com>
+RCPT TO:<committer@example.com>
 From: Example <from@example.com>
 To: to@example.com
-Cc: A <author@example.com>, One <one@example.com>, two@example.com, C O Mitter <committer@example.com>
+Cc: A <author@example.com>,
+       One <one@example.com>,
+       two@example.com,
+       C O Mitter <committer@example.com>
 Subject: [PATCH 1/1] Second.
 Date: DATE-STRING
 Message-Id: MESSAGE-ID-STRING
@@ -359,10 +574,13 @@ cat >expected-suppress-cc <<\EOF
 Dry-OK. Log says:
 Server: relay.example.com
 MAIL FROM:<from@example.com>
-RCPT TO:<to@example.com>,<author@example.com>,<committer@example.com>
+RCPT TO:<to@example.com>
+RCPT TO:<author@example.com>
+RCPT TO:<committer@example.com>
 From: Example <from@example.com>
 To: to@example.com
-Cc: A <author@example.com>, C O Mitter <committer@example.com>
+Cc: A <author@example.com>,
+       C O Mitter <committer@example.com>
 Subject: [PATCH 1/1] Second.
 Date: DATE-STRING
 Message-Id: MESSAGE-ID-STRING
@@ -375,15 +593,117 @@ test_expect_success '--suppress-cc=cc' '
        test_suppression cc
 '
 
+test_confirm () {
+       echo y | \
+               GIT_SEND_EMAIL_NOTTY=1 \
+               git send-email \
+               --from="Example <nobody@example.com>" \
+               --to=nobody@example.com \
+               --smtp-server="$(pwd)/fake.sendmail" \
+               $@ $patches > stdout &&
+       grep "Send this email" stdout
+}
+
+test_expect_success '--confirm=always' '
+       test_confirm --confirm=always --suppress-cc=all
+'
+
+test_expect_success '--confirm=auto' '
+       test_confirm --confirm=auto
+'
+
+test_expect_success '--confirm=cc' '
+       test_confirm --confirm=cc
+'
+
+test_expect_success '--confirm=compose' '
+       test_confirm --confirm=compose --compose
+'
+
+test_expect_success 'confirm by default (due to cc)' '
+       CONFIRM=$(git config --get sendemail.confirm) &&
+       git config --unset sendemail.confirm &&
+       test_confirm
+       ret="$?"
+       git config sendemail.confirm ${CONFIRM:-never}
+       test $ret = "0"
+'
+
+test_expect_success 'confirm by default (due to --compose)' '
+       CONFIRM=$(git config --get sendemail.confirm) &&
+       git config --unset sendemail.confirm &&
+       test_confirm --suppress-cc=all --compose
+       ret="$?"
+       git config sendemail.confirm ${CONFIRM:-never}
+       test $ret = "0"
+'
+
+test_expect_success 'confirm detects EOF (inform assumes y)' '
+       CONFIRM=$(git config --get sendemail.confirm) &&
+       git config --unset sendemail.confirm &&
+       rm -fr outdir &&
+       git format-patch -2 -o outdir &&
+       GIT_SEND_EMAIL_NOTTY=1 \
+               git send-email \
+                       --from="Example <nobody@example.com>" \
+                       --to=nobody@example.com \
+                       --smtp-server="$(pwd)/fake.sendmail" \
+                       outdir/*.patch < /dev/null
+       ret="$?"
+       git config sendemail.confirm ${CONFIRM:-never}
+       test $ret = "0"
+'
+
+test_expect_success 'confirm detects EOF (auto causes failure)' '
+       CONFIRM=$(git config --get sendemail.confirm) &&
+       git config sendemail.confirm auto &&
+       GIT_SEND_EMAIL_NOTTY=1 &&
+       export GIT_SEND_EMAIL_NOTTY &&
+               test_must_fail git send-email \
+                       --from="Example <nobody@example.com>" \
+                       --to=nobody@example.com \
+                       --smtp-server="$(pwd)/fake.sendmail" \
+                       $patches < /dev/null
+       ret="$?"
+       git config sendemail.confirm ${CONFIRM:-never}
+       test $ret = "0"
+'
+
+test_expect_success 'confirm doesnt loop forever' '
+       CONFIRM=$(git config --get sendemail.confirm) &&
+       git config sendemail.confirm auto &&
+       GIT_SEND_EMAIL_NOTTY=1 &&
+       export GIT_SEND_EMAIL_NOTTY &&
+               yes "bogus" | test_must_fail git send-email \
+                       --from="Example <nobody@example.com>" \
+                       --to=nobody@example.com \
+                       --smtp-server="$(pwd)/fake.sendmail" \
+                       $patches
+       ret="$?"
+       git config sendemail.confirm ${CONFIRM:-never}
+       test $ret = "0"
+'
+
+test_expect_success 'utf8 Cc is rfc2047 encoded' '
+       clean_fake_sendmail &&
+       rm -fr outdir &&
+       git format-patch -1 -o outdir --cc="àéìöú <utf8@example.com>" &&
+       git send-email \
+       --from="Example <nobody@example.com>" \
+       --to=nobody@example.com \
+       --smtp-server="$(pwd)/fake.sendmail" \
+       outdir/*.patch &&
+       grep "^ " msgtxt1 |
+       grep "=?UTF-8?q?=C3=A0=C3=A9=C3=AC=C3=B6=C3=BA?= <utf8@example.com>"
+'
+
 test_expect_success '--compose adds MIME for utf8 body' '
        clean_fake_sendmail &&
        (echo "#!$SHELL_PATH" &&
         echo "echo utf8 body: àéìöú >>\"\$1\""
        ) >fake-editor-utf8 &&
        chmod +x fake-editor-utf8 &&
-       echo y | \
          GIT_EDITOR="\"$(pwd)/fake-editor-utf8\"" \
-         GIT_SEND_EMAIL_NOTTY=1 \
          git send-email \
          --compose --subject foo \
          --from="Example <nobody@example.com>" \
@@ -391,7 +711,7 @@ test_expect_success '--compose adds MIME for utf8 body' '
          --smtp-server="$(pwd)/fake.sendmail" \
          $patches &&
        grep "^utf8 body" msgtxt1 &&
-       grep "^Content-Type: text/plain; charset=utf-8" msgtxt1
+       grep "^Content-Type: text/plain; charset=UTF-8" msgtxt1
 '
 
 test_expect_success '--compose respects user mime type' '
@@ -405,9 +725,7 @@ test_expect_success '--compose respects user mime type' '
         echo " echo utf8 body: àéìöú) >\"\$1\""
        ) >fake-editor-utf8-mime &&
        chmod +x fake-editor-utf8-mime &&
-       echo y | \
          GIT_EDITOR="\"$(pwd)/fake-editor-utf8-mime\"" \
-         GIT_SEND_EMAIL_NOTTY=1 \
          git send-email \
          --compose --subject foo \
          --from="Example <nobody@example.com>" \
@@ -416,14 +734,12 @@ test_expect_success '--compose respects user mime type' '
          $patches &&
        grep "^utf8 body" msgtxt1 &&
        grep "^Content-Type: text/plain; charset=iso-8859-1" msgtxt1 &&
-       ! grep "^Content-Type: text/plain; charset=utf-8" msgtxt1
+       ! grep "^Content-Type: text/plain; charset=UTF-8" msgtxt1
 '
 
 test_expect_success '--compose adds MIME for utf8 subject' '
        clean_fake_sendmail &&
-       echo y | \
          GIT_EDITOR="\"$(pwd)/fake-editor\"" \
-         GIT_SEND_EMAIL_NOTTY=1 \
          git send-email \
          --compose --subject utf8-sübjëct \
          --from="Example <nobody@example.com>" \
@@ -431,7 +747,7 @@ test_expect_success '--compose adds MIME for utf8 subject' '
          --smtp-server="$(pwd)/fake.sendmail" \
          $patches &&
        grep "^fake edit" msgtxt1 &&
-       grep "^Subject: =?utf-8?q?utf8-s=C3=BCbj=C3=ABct?=" msgtxt1
+       grep "^Subject: =?UTF-8?q?utf8-s=C3=BCbj=C3=ABct?=" msgtxt1
 '
 
 test_expect_success 'detects ambiguous reference/file conflict' '
@@ -445,7 +761,7 @@ test_expect_success 'detects ambiguous reference/file conflict' '
 test_expect_success 'feed two files' '
        rm -fr outdir &&
        git format-patch -2 -o outdir &&
-       GIT_SEND_EMAIL_NOTTY=1 git send-email \
+       git send-email \
        --dry-run \
        --from="Example <nobody@example.com>" \
        --to=nobody@example.com \
@@ -461,9 +777,79 @@ test_expect_success 'in-reply-to but no threading' '
                --from="Example <nobody@example.com>" \
                --to=nobody@example.com \
                --in-reply-to="<in-reply-id@example.com>" \
-               --no-thread \
+               --nothread \
                $patches |
        grep "In-Reply-To: <in-reply-id@example.com>"
 '
 
+test_expect_success 'no in-reply-to and no threading' '
+       git send-email \
+               --dry-run \
+               --from="Example <nobody@example.com>" \
+               --to=nobody@example.com \
+               --nothread \
+               $patches $patches >stdout &&
+       ! grep "In-Reply-To: " stdout
+'
+
+test_expect_success 'threading but no chain-reply-to' '
+       git send-email \
+               --dry-run \
+               --from="Example <nobody@example.com>" \
+               --to=nobody@example.com \
+               --thread \
+               --nochain-reply-to \
+               $patches $patches >stdout &&
+       grep "In-Reply-To: " stdout
+'
+
+test_expect_success 'warning with an implicit --chain-reply-to' '
+       git send-email \
+       --dry-run \
+       --from="Example <nobody@example.com>" \
+       --to=nobody@example.com \
+       outdir/000?-*.patch 2>errors >out &&
+       grep "no-chain-reply-to" errors
+'
+
+test_expect_success 'no warning with an explicit --chain-reply-to' '
+       git send-email \
+       --dry-run \
+       --from="Example <nobody@example.com>" \
+       --to=nobody@example.com \
+       --chain-reply-to \
+       outdir/000?-*.patch 2>errors >out &&
+       ! grep "no-chain-reply-to" errors
+'
+
+test_expect_success 'no warning with an explicit --no-chain-reply-to' '
+       git send-email \
+       --dry-run \
+       --from="Example <nobody@example.com>" \
+       --to=nobody@example.com \
+       --nochain-reply-to \
+       outdir/000?-*.patch 2>errors >out &&
+       ! grep "no-chain-reply-to" errors
+'
+
+test_expect_success 'no warning with sendemail.chainreplyto = false' '
+       git config sendemail.chainreplyto false &&
+       git send-email \
+       --dry-run \
+       --from="Example <nobody@example.com>" \
+       --to=nobody@example.com \
+       outdir/000?-*.patch 2>errors >out &&
+       ! grep "no-chain-reply-to" errors
+'
+
+test_expect_success 'no warning with sendemail.chainreplyto = true' '
+       git config sendemail.chainreplyto true &&
+       git send-email \
+       --dry-run \
+       --from="Example <nobody@example.com>" \
+       --to=nobody@example.com \
+       outdir/000?-*.patch 2>errors >out &&
+       ! grep "no-chain-reply-to" errors
+'
+
 test_done