import { afterEach, beforeEach, describe, expect, it, vi } from "vite-plus/test"; import {  formatElapsedDurationLabel,  formatExpiresInLabel,  formatRelativeTime,  formatRelativeTimeLabel,  formatRelativeTimeUntil,  formatRelativeTimeUntilLabel,  formatShortTimestamp,  formatTimestamp,  getRelativeTimeState,  getTimestampFormatOptions,} from "./timestampFormat"; describe("getTimestampFormatOptions", () => {  it("omits hour12 when locale formatting is requested", () => {    expect(getTimestampFormatOptions("locale", true)).toEqual({      hour: "numeric",      minute: "2-digit",      second: "2-digit",    });  });   it("builds a 12-hour formatter with seconds when requested", () => {    expect(getTimestampFormatOptions("12-hour", true)).toEqual({      hour: "numeric",      minute: "2-digit",      second: "2-digit",      hour12: true,    });  });   it("builds a 24-hour formatter without seconds when requested", () => {    expect(getTimestampFormatOptions("24-hour", false)).toEqual({      hour: "numeric",      minute: "2-digit",      hour12: false,    });  });}); describe("formatRelativeTimeUntilLabel", () => {  beforeEach(() => {    vi.useFakeTimers();    vi.setSystemTime(new Date("2026-04-07T12:00:00.000Z"));  });   afterEach(() => {    vi.useRealTimers();  });   it("returns Expired when the instant is in the past", () => {    expect(formatRelativeTimeUntilLabel("2026-04-07T11:59:00.000Z")).toBe("Expired");  });   it("formats seconds remaining", () => {    expect(formatRelativeTimeUntilLabel("2026-04-07T12:00:45.000Z")).toBe("45s left");  });   it("formats minutes remaining", () => {    expect(formatRelativeTimeUntilLabel("2026-04-07T12:15:00.000Z")).toBe("15m left");  });   it("formats hours remaining", () => {    expect(formatRelativeTimeUntilLabel("2026-04-07T18:00:00.000Z")).toBe("6h left");  });}); describe("formatExpiresInLabel", () => {  beforeEach(() => {    vi.useFakeTimers();    vi.setSystemTime(new Date("2026-04-07T12:00:00.000Z"));  });   afterEach(() => {    vi.useRealTimers();  });   it("returns Expired when the instant is in the past", () => {    expect(formatExpiresInLabel("2026-04-07T11:59:00.000Z")).toBe("Expired");  });   it("uses sub-minute second count", () => {    expect(formatExpiresInLabel("2026-04-07T12:00:45.000Z")).toBe("Expires in 45s");  });   it("uses minutes and seconds under one hour", () => {    expect(formatExpiresInLabel("2026-04-07T12:04:12.000Z")).toBe("Expires in 4m 12s");    expect(formatExpiresInLabel("2026-04-07T12:15:00.000Z")).toBe("Expires in 15m");  });   it("uses hours with minute and second remainder", () => {    expect(formatExpiresInLabel("2026-04-07T14:02:03.000Z")).toBe("Expires in 2h 2m 3s");    expect(formatExpiresInLabel("2026-04-07T18:00:00.000Z")).toBe("Expires in 6h");  });}); describe("invalid timestamp inputs", () => {  it("returns an empty timestamp instead of throwing", () => {    expect(() => formatTimestamp("not-a-date", "12-hour")).not.toThrow();    expect(formatTimestamp("not-a-date", "12-hour")).toBe("");  });   it("returns an empty short timestamp instead of throwing", () => {    expect(() => formatShortTimestamp("not-a-date", "12-hour")).not.toThrow();    expect(formatShortTimestamp("not-a-date", "12-hour")).toBe("");  });   it("returns an empty relative time label instead of a NaN label", () => {    expect(formatRelativeTime("not-a-date")).toBeNull();    expect(formatRelativeTimeLabel("not-a-date")).toBe("");  });   it("distinguishes missing and invalid relative time state", () => {    expect(getRelativeTimeState(null)).toEqual({ status: "missing" });    expect(getRelativeTimeState("not-a-date")).toEqual({ status: "invalid" });  });   it("returns an empty elapsed duration instead of a NaN label", () => {    expect(formatElapsedDurationLabel("not-a-date")).toBe("");  });   it("returns an empty relative time until label instead of a NaN label", () => {    expect(formatRelativeTimeUntil("not-a-date")).toBeNull();    expect(formatRelativeTimeUntilLabel("not-a-date")).toBe("");  });   it("returns an empty expires-in label instead of a NaN label", () => {    expect(formatExpiresInLabel("not-a-date")).toBe("");  });}); describe("getRelativeTimeState", () => {  beforeEach(() => {    vi.useFakeTimers();    vi.setSystemTime(new Date("2026-04-07T12:00:00.000Z"));  });   afterEach(() => {    vi.useRealTimers();  });   it("returns relative parts for valid timestamps", () => {    expect(getRelativeTimeState("2026-04-07T11:45:00.000Z")).toEqual({      status: "relative",      value: "15m",      suffix: "ago",    });  });}); describe("formatElapsedDurationLabel", () => {  beforeEach(() => {    vi.useFakeTimers();    vi.setSystemTime(new Date("2026-04-07T12:00:00.000Z"));  });   afterEach(() => {    vi.useRealTimers();  });   it("returns just now when the instant is current or in the future", () => {    expect(formatElapsedDurationLabel("2026-04-07T12:00:00.000Z")).toBe("just now");    expect(formatElapsedDurationLabel("2026-04-07T12:01:00.000Z")).toBe("just now");  });   it("formats seconds, minutes, hours, and days", () => {    expect(formatElapsedDurationLabel("2026-04-07T11:59:45.000Z")).toBe("15s");    expect(formatElapsedDurationLabel("2026-04-07T11:45:00.000Z")).toBe("15m");    expect(formatElapsedDurationLabel("2026-04-07T06:00:00.000Z")).toBe("6h");    expect(formatElapsedDurationLabel("2026-04-03T12:00:00.000Z")).toBe("4d");  });});