t9001-send-email: refactor header variable fields replacement

Create a function which replaces Date, Message-Id and
X-Mailer lines generated by git-send-email by a specific string:

Date:.*$       -> Date: DATE-STRING
Message-Id:.*$ -> Message-Id: MESSAGE-ID-STRING
X-Mailer:.*$   -> X-Mailer: X-MAILER-STRING
Signed-off-by: Remi Lespinet <remi.lespinet@ensimag.grenoble-inp.fr>
Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t9001-send-email.sh b/t/t9001-send-email.sh
index 062c703..806f066 100755 (executable)
--- a/t/t9001-send-email.sh
+++ b/t/t9001-send-email.sh
@@ -522,6 +522,12 @@ Result: OK
 EOF
 "
 
+replace_variable_fields () {
+       sed     -e "s/^\(Date:\).*/\1 DATE-STRING/" \
+               -e "s/^\(Message-Id:\).*/\1 MESSAGE-ID-STRING/" \
+               -e "s/^\(X-Mailer:\).*/\1 X-MAILER-STRING/"
+}
+
 test_suppression () {
        git send-email \
                --dry-run \
@@ -529,10 +535,7 @@ test_suppression () {
                --from="Example <from@example.com>" \
                --to=to@example.com \
                --smtp-server relay.example.com \
-               $patches |
-       sed     -e "s/^\(Date:\).*/\1 DATE-STRING/" \
-               -e "s/^\(Message-Id:\).*/\1 MESSAGE-ID-STRING/" \
-               -e "s/^\(X-Mailer:\).*/\1 X-MAILER-STRING/" \
+               $patches | replace_variable_fields \
                >actual-suppress-$1${2+"-$2"} &&
        test_cmp expected-suppress-$1${2+"-$2"} actual-suppress-$1${2+"-$2"}
 }