import { describe, expect, it } from "@effect/vitest"; import { sourceFaviconUrl } from "./source-favicon"; describe("SourceFavicon", () => {  it("uses the favicon service that handles provider-specific icon locations", () => {    expect(sourceFaviconUrl("https://api.github.com/graphql", 20)).toBe(      "https://www.google.com/s2/favicons?domain=github.com&sz=40",    );  });   it("does not request favicons for local URLs", () => {    expect(sourceFaviconUrl("http://localhost:3000/private", 20)).toBeNull();    expect(sourceFaviconUrl("http://127.0.0.1:3000/private", 20)).toBeNull();  });   it("sends only the registrable domain to the favicon service", () => {    expect(sourceFaviconUrl("https://api.github.com/private", 20)).toBe(      "https://www.google.com/s2/favicons?domain=github.com&sz=40",    );  });});