From: Anton Khirnov <anton@khirnov.net>
To: notmuch@notmuchmail.org
Subject: [PATCH v5 3/6] test: add tests for attachment filtering
Date: Sat, 15 Aug 2026 16:01:25 +0200
Message-ID: <20260815140127.26199-5-anton@khirnov.net>
In-Reply-To: <20260815140127.26199-2-anton@khirnov.net>
References: <20260815140127.26199-2-anton@khirnov.net>
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This tests the libnotmuch interface, i.e. feeding the data to an
external filter and retrieving the resuls; NOT the filter itself, which
is user-supplied.
---
 test/T681-index-filter.sh | 84 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100755 test/T681-index-filter.sh

diff --git a/test/T681-index-filter.sh b/test/T681-index-filter.sh
new file mode 100755
index 00000000..6ef7b9e4
--- /dev/null
+++ b/test/T681-index-filter.sh
@@ -0,0 +1,84 @@
+#!/usr/bin/env bash
+test_description="indexing attachment with a filter"
+. $(dirname "$0")/test-lib.sh || exit 1
+
+notmuch config set index.as_text ".*"
+
+cat <<EOF > $MAIL_DIR/attachment-empty.eml
+From: example@example.net
+To: example@example.com
+Subject: zero-size attachment
+Date: Sun, 09 Feb 2025 12:33:43 +0000
+Message-ID: <177064044971.16863.empty@localhost>
+MIME-Version: 1.0
+Content-Type: text/plain
+Content-Disposition: attachment; filename=foo.txt
+Content-Transfer-Encoding: base64
+
+EOF
+
+MSG_FILE_LARGE=${MAIL_DIR}/attachment-large.eml
+
+cat <<EOF > $MSG_FILE_LARGE
+From: example@example.net
+To: example@example.com
+Subject: large attachment
+Date: Sun, 09 Feb 2025 12:33:44 +0000
+Message-ID: <177064044971.16863.large@localhost>
+MIME-Version: 1.0
+Content-Type: text/plain
+Content-Disposition: attachment; filename=foo.txt
+Content-Transfer-Encoding: base64
+
+EOF
+
+{ for i in $(seq 65536); do echo $i; done } | base64 >> $MSG_FILE_LARGE
+
+notmuch new
+
+cat <<EOF > EXPECTED
+thread:XXX   2025-02-09 [1/1] example@example.net; large attachment (attachment inbox unread)
+thread:XXX   2025-02-09 [1/1] example@example.net; zero-size attachment (attachment inbox unread)
+EOF
+
+test_begin_subtest 'input ignored'
+notmuch config set index.filter "/bin/sh -c 'echo secretstring'"
+notmuch reindex '*'
+notmuch search "secretstring" | notmuch_search_sanitize > OUTPUT
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest 'input consumed'
+notmuch config set index.filter "/bin/sh -c 'cat - > /dev/null; echo secretstring'"
+notmuch reindex '*'
+notmuch search "secretstring" | notmuch_search_sanitize > OUTPUT
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest 'interleaved IO'
+# this filter interleaves reads of increasingly large weird-sized blocks
+# with writes
+notmuch config set index.filter '/bin/sh -c "
+bs=53;
+while true; do
+    dd bs=\$bs count=1 2>&1 >/dev/null | grep -q \"^0+0 records in$\" >&2 && break;
+    echo \$bs;
+    bs=\$((\$bs+48));
+done;
+echo secretstring;
+"'
+notmuch reindex '*'
+notmuch search "secretstring" | notmuch_search_sanitize > OUTPUT
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest 'exit failure'
+notmuch config set index.filter "/bin/sh -c 'echo secretstring; exit 1'"
+notmuch reindex '*'
+notmuch search "secretstring" | notmuch_search_sanitize > OUTPUT
+test_expect_equal_file /dev/null OUTPUT
+
+test_begin_subtest 'exit signal'
+notmuch config set index.filter "/bin/sh -c 'echo secretstring; kill -ABRT \$\$'"
+notmuch reindex '*'
+notmuch search "secretstring" | notmuch_search_sanitize > OUTPUT
+test_expect_equal_file /dev/null OUTPUT
+
+test_done
-- 
2.47.3

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