it("rejects out-of-range epoch milliseconds", () => {

expect(parseAt(String(Number.MAX_SAFE_INTEGER))).toBeNull();

});

it("rejects relative durations outside the Date range", () => {

vi.useFakeTimers();

vi.setSystemTime(new Date("2026-05-25T00:00:00.000Z"));

expect(parseAt("+999999999999999999d")).toBeNull();

});

});

describe("getCronChannelOptions", () => {

parseOffsetlessIsoDateTimeInTimeZone,

} from "../../infra/format-time/parse-offsetless-zoned-datetime.js";

import { defaultRuntime, type RuntimeEnv } from "../../runtime.js";

import { timestampMsToIsoString } from "../../shared/number-coercion.js";

import {

normalizeLowercaseStringOrEmpty,

normalizeOptionalString,

const absolute = parseAbsoluteTimeMs(raw);

if (absolute !== null) {

return new Date(absolute).toISOString();

return timestampMsToIsoString(absolute) ?? null;

}

const durationInput = raw.startsWith("+") ? raw.slice(1) : raw;

const dur = parseDurationMs(durationInput);

if (dur !== null) {

return new Date(Date.now() + dur).toISOString();

return timestampMsToIsoString(Date.now() + dur) ?? null;

}

return null;

}