\"subject\": \"json-search-utf8-body-sübjéct\",
\"tags\": [\"inbox\", \"unread\"]}]"
+test_begin_subtest "Search returning no messages"
+output=$(notmuch search --format=json "this string had better not match any messages" | notmuch_search_sanitize)
+test_expect_equal "$output" "[]"
+
test_done