+test_begin_subtest "lastmod query, two arguments, first negative"
+revdiff=$((revision2 - revision))
+notmuch search lastmod:$revision..$revision2 | notmuch_search_sanitize > EXPECTED
+notmuch search --query=sexp "(lastmod -$revdiff $revision2)" | notmuch_search_sanitize > OUTPUT
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest "lastmod query, two arguments, second negative"
+revdiff=$((revision2 - revision))
+notmuch search lastmod:..$revision | notmuch_search_sanitize > EXPECTED
+notmuch search --query=sexp "(lastmod 0 -$revdiff)" | notmuch_search_sanitize > OUTPUT
+test_expect_equal_file EXPECTED OUTPUT
+
+test_begin_subtest "lastmod query, lower bound only"
+notmuch search lastmod:$revision.. | notmuch_search_sanitize > EXPECTED
+notmuch search --query=sexp "(lastmod $revision \"\")" | notmuch_search_sanitize > OUTPUT
+test_expect_equal_file_nonempty EXPECTED OUTPUT
+
+test_begin_subtest "lastmod query, lower bound only (negative)"
+notmuch search lastmod:$revision.. | notmuch_search_sanitize > EXPECTED
+notmuch search --query=sexp "(lastmod -$revdiff \"\")" | notmuch_search_sanitize > OUTPUT
+test_expect_equal_file_nonempty EXPECTED OUTPUT
+
+test_begin_subtest "lastmod query, upper bound only"
+notmuch search lastmod:..$revision2 | notmuch_search_sanitize > EXPECTED
+notmuch search --query=sexp "(lastmod \"\" $revision2)" | notmuch_search_sanitize > OUTPUT
+test_expect_equal_file_nonempty EXPECTED OUTPUT
+
+test_begin_subtest "lastmod query, upper bound only (negative)"
+notmuch search lastmod:..$revision | notmuch_search_sanitize > EXPECTED
+notmuch search --query=sexp "(lastmod \"\" -$revdiff)" | notmuch_search_sanitize > OUTPUT
+test_expect_equal_file_nonempty EXPECTED OUTPUT
+
+test_begin_subtest "lastmod query, lower bound only, using *"
+notmuch search lastmod:$revision.. | notmuch_search_sanitize > EXPECTED
+notmuch search --query=sexp "(lastmod $revision *)" | notmuch_search_sanitize > OUTPUT
+test_expect_equal_file_nonempty EXPECTED OUTPUT
+
+test_begin_subtest "lastmod query, upper bound only, using *"
+notmuch search lastmod:..$revision2 | notmuch_search_sanitize > EXPECTED
+notmuch search --query=sexp "(lastmod * $revision2)" | notmuch_search_sanitize > OUTPUT
+test_expect_equal_file_nonempty EXPECTED OUTPUT
+