test: add known broken test for long directory bug

In [1] Gregor Zattler explained the results of his hard work
tracking down a bug in notmuch with long directories. This test
duplicates the bug.

[1]: id:20210317194728.GB5561@no.workgroup

diff --git a/test/T050-new.sh b/test/T050-new.sh
index 76bda9592a453580a1ef88f7ab1f989b49cb50ea..2985e24c66beb9ce13816ebdacf85c5a9638e139 100755 (executable)
--- a/test/T050-new.sh
+++ b/test/T050-new.sh
@@ -339,6 +339,20 @@ test_expect_code 1 "NOTMUCH_NEW --debug 2>&1"
 
 notmuch config set new.tags $OLDCONFIG
 
+test_begin_subtest "Long directory names don't cause rescan"
+test_subtest_known_broken
+printf -v name 'z%.0s' {1..234}
+generate_message [dir]=$name
+NOTMUCH_NEW > OUTPUT
+notmuch new >> OUTPUT
+rm -r ${MAIL_DIR}/${name}
+notmuch new >> OUTPUT
+cat <<EOF > EXPECTED
+Added 1 new message to the database.
+No new mail.
+No new mail. Removed 1 message.
+EOF
+test_expect_equal_file EXPECTED OUTPUT
 
 test_begin_subtest "Xapian exception: read only files"
 chmod u-w ${MAIL_DIR}/.notmuch/xapian/*.*