import { describe, expect, it } from "vite-plus/test"; import { resolveAssetUrl } from "./assetUrls"; describe("resolveAssetUrl", () => {  it("resolves an environment-relative asset URL", () => {    expect(      resolveAssetUrl("https://environment.example/base/", "/api/assets/signed-token/favicon.png"),    ).toBe("https://environment.example/api/assets/signed-token/favicon.png");  });   it("rejects an invalid environment base URL", () => {    expect(resolveAssetUrl("not a URL", "/api/assets/signed-token/favicon.png")).toBeNull();  });});