t9001: add sendmail aliases line continuation tests

A line beginning with whitespace is folded into the preceding line.
A line ending with '\' consumes the following line.

While here, also test an empty sendmail aliases file.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t9001-send-email.sh b/t/t9001-send-email.sh
index 1012fa3ad674634ac456f2a6b17997c251ee5547..db2f45e83b14fb5ae5b5f32b4178d7cd1ce97bf8 100755 (executable)
--- a/t/t9001-send-email.sh
+++ b/t/t9001-send-email.sh
@@ -1587,6 +1587,40 @@ test_sendmail_aliases 'sendemail.aliasfiletype=sendmail' \
        bcgrp: bob, chloe, Other <o@example.com>
        EOF
 
+test_sendmail_aliases 'sendmail aliases line folding' \
+       alice1 \
+       bob1 bob2 \
+       chuck1 chuck2 \
+       darla1 darla2 darla3 \
+       elton1 elton2 elton3 \
+       fred1 fred2 \
+       greg1 <<-\EOF
+       alice: alice1
+       bob: bob1,\
+       bob2
+       chuck: chuck1,
+           chuck2
+       darla: darla1,\
+       darla2,
+           darla3
+       elton: elton1,
+           elton2,\
+       elton3
+       fred: fred1,\
+           fred2
+       greg: greg1
+       bcgrp: bob, chuck, darla, elton, fred, greg
+       EOF
+
+test_sendmail_aliases 'sendmail aliases tolerate bogus line folding' \
+       alice1 bob1 <<-\EOF
+           alice: alice1
+       bcgrp: bob1\
+       EOF
+
+test_sendmail_aliases 'sendmail aliases empty' alice bcgrp <<-\EOF
+       EOF
+
 do_xmailer_test () {
        expected=$1 params=$2 &&
        git format-patch -1 &&