test-lib: allow negation of prerequisites

diff --git a/t/t9001-send-email.sh b/t/t9001-send-email.sh
index 265ae0463f188a2ee9b0a0e172215eec72857be6..6c6af7d13f80bdc582e1d45558c24174a5800a38 100755 (executable)
--- a/t/t9001-send-email.sh
+++ b/t/t9001-send-email.sh
@@ -909,6 +909,20 @@ test_expect_success $PREREQ '--compose-encoding overrides sendemail.composeencod
        grep "^Content-Type: text/plain; charset=iso-8859-2" msgtxt1
 '
 
+test_expect_success $PREREQ '--compose-encoding adds correct MIME for subject' '
+       clean_fake_sendmail &&
+         GIT_EDITOR="\"$(pwd)/fake-editor\"" \
+         git send-email \
+         --compose-encoding iso-8859-2 \
+         --compose --subject utf8-sübjëct \
+         --from="Example <nobody@example.com>" \
+         --to=nobody@example.com \
+         --smtp-server="$(pwd)/fake.sendmail" \
+         $patches &&
+       grep "^fake edit" msgtxt1 &&
+       grep "^Subject: =?iso-8859-2?q?utf8-s=C3=BCbj=C3=ABct?=" msgtxt1
+'
+
 test_expect_success $PREREQ 'detects ambiguous reference/file conflict' '
        echo master > master &&
        git add master &&
@@ -1128,6 +1142,23 @@ Dieser deutsche Text enthält einen Umlaut!
 EOF
 '
 
+test_expect_success $PREREQ 'setup expect' '
+cat >expected <<EOF
+Subject: subject goes here
+EOF
+'
+
+test_expect_success $PREREQ 'ASCII subject is not RFC2047 quoted' '
+       clean_fake_sendmail &&
+       echo bogus |
+       git send-email --from=author@example.com --to=nobody@example.com \
+                       --smtp-server="$(pwd)/fake.sendmail" \
+                       --8bit-encoding=UTF-8 \
+                       email-using-8bit >stdout &&
+       grep "Subject" msgtxt1 >actual &&
+       test_cmp expected actual
+'
+
 test_expect_success $PREREQ 'setup expect' '
 cat >content-type-decl <<EOF
 MIME-Version: 1.0