38 lines
1.4 KiB
TypeScript
38 lines
1.4 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import { computeNextRunAtMs } from "./schedule.js";
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describe("cron schedule", () => {
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it("computes next run for cron expression with timezone", () => {
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// Saturday, Dec 13 2025 00:00:00Z
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const nowMs = Date.parse("2025-12-13T00:00:00.000Z");
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const next = computeNextRunAtMs(
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{ kind: "cron", expr: "0 9 * * 3", tz: "America/Los_Angeles" },
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nowMs,
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);
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// Next Wednesday at 09:00 PST -> 17:00Z
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expect(next).toBe(Date.parse("2025-12-17T17:00:00.000Z"));
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});
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it("computes next run for every schedule", () => {
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const anchor = Date.parse("2025-12-13T00:00:00.000Z");
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const now = anchor + 10_000;
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const next = computeNextRunAtMs({ kind: "every", everyMs: 30_000, anchorMs: anchor }, now);
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expect(next).toBe(anchor + 30_000);
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});
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it("computes next run for every schedule when anchorMs is not provided", () => {
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const now = Date.parse("2025-12-13T00:00:00.000Z");
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const next = computeNextRunAtMs({ kind: "every", everyMs: 30_000 }, now);
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// Should return nowMs + everyMs, not nowMs (which would cause infinite loop)
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expect(next).toBe(now + 30_000);
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});
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it("advances when now matches anchor for every schedule", () => {
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const anchor = Date.parse("2025-12-13T00:00:00.000Z");
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const next = computeNextRunAtMs({ kind: "every", everyMs: 30_000, anchorMs: anchor }, anchor);
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expect(next).toBe(anchor + 30_000);
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});
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});
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