output=$(notmuch search --format=json "json-search-message" | notmuch_search_sanitize)
 test_expect_equal "$output" "[{\"thread\": \"XXX\",
 \"timestamp\": 946728000,
+\"date_relative\": \"2000-01-01\",
 \"matched\": 1,
 \"total\": 1,
 \"authors\": \"Notmuch Test Suite\",
 output=$(notmuch search --format=json "jsön-search-méssage" | notmuch_search_sanitize)
 test_expect_equal "$output" "[{\"thread\": \"XXX\",
 \"timestamp\": 946728000,
+\"date_relative\": \"2000-01-01\",
 \"matched\": 1,
 \"total\": 1,
 \"authors\": \"Notmuch Test Suite\",