rebase -i: be careful to wrap up fixup/squash chains

diff --git a/t/t4014-format-patch.sh b/t/t4014-format-patch.sh
index 349029f43b0f02e549ff3212c42eac9043ee8573..028d5507a6b684208ba82292379ec74bc6628574 100755 (executable)
--- a/t/t4014-format-patch.sh
+++ b/t/t4014-format-patch.sh
@@ -1664,6 +1664,15 @@ test_expect_success 'format-patch --base with --attach' '
        test_write_lines 1 2 >expect &&
        test_cmp expect actual
 '
+test_expect_success 'format-patch --attach cover-letter only is non-multipart' '
+       test_when_finished "rm -fr patches" &&
+       git format-patch -o patches --cover-letter --attach=mimemime --base=HEAD~ -1 &&
+       ! egrep "^--+mimemime" patches/0000*.patch &&
+       egrep "^--+mimemime$" patches/0001*.patch >output &&
+       test_line_count = 2 output &&
+       egrep "^--+mimemime--$" patches/0001*.patch >output &&
+       test_line_count = 1 output
+'
 
 test_expect_success 'format-patch --pretty=mboxrd' '
        sp=" " &&