import { describe, expect, it } from "vitest"; import { extractPairingUrlFromQrPayload, parsePairingUrl } from "./pairing"; describe("extractPairingUrlFromQrPayload", () => {  it("trims raw pairing urls from qr payloads", () => {    expect(      extractPairingUrlFromQrPayload("  https://remote.example.com/pair#token=pairing-token  "),    ).toBe("https://remote.example.com/pair#token=pairing-token");  });   it("unwraps mobile deep links that carry an encoded pairing url", () => {    expect(      extractPairingUrlFromQrPayload(        "t3code://pair?pairingUrl=https%3A%2F%2Fremote.example.com%2Fpair%23token%3Dpairing-token",      ),    ).toBe("https://remote.example.com/pair#token=pairing-token");  });   it("rejects empty qr payloads", () => {    expect(() => extractPairingUrlFromQrPayload("   ")).toThrow(      "Scanned QR code did not contain a pairing URL.",    );  });}); describe("parsePairingUrl", () => {  it("reads hosted pairing links into backend host fields", () => {    expect(      parsePairingUrl(        "https://app.t3.codes/pair?host=https%3A%2F%2Fdesktop.tailnet.ts.net%2F#token=pairing-token",      ),    ).toEqual({      host: "https://desktop.tailnet.ts.net",      code: "pairing-token",    });  });});