test_cmp expect actual
'
+test_expect_success '--rfc' '
+ cat >expect <<-\EOF &&
+ Subject: [RFC PATCH 1/1] header with . in it
+ EOF
+ git format-patch -n -1 --stdout --rfc >patch &&
+ grep ^Subject: patch >actual &&
+ test_cmp expect actual
+'
+
test_expect_success '--from=ident notices bogus ident' '
test_must_fail git format-patch -1 --stdout --from=foo >patch
'