import { describe, expect, it } from "@effect/vitest"; import { faviconUrlForOrigin, toolActivityFaviconUrl } from "./favicon.ts"; describe("faviconUrlForOrigin", () => {  it.each([    "http://192.168.1.10:8080",    "http://localhost:3000",    "http://home.arpa",    "https://printer.local.",    "https://api.internal",    "https://box.tailnet.ts.net",    "http://127.1",    "http://0x7f000001",    "http://[::]",    "http://[::1]",    "http://[::ffff:192.168.1.10]",    "http://[fd00::1]",    "http://[fe80::1]",    "http://100.64.0.1",    "http://198.51.100.1",    "http://[2001:db8::1]",    "http://service.test",    "http://private.onion",    "http://127.1..",  ])("does not disclose %s to the favicon provider", (origin) => {    expect(faviconUrlForOrigin(origin)).toBeNull();  });   it("keeps the public origin, port and requested size", () => {    expect(faviconUrlForOrigin("https://github.com:8443/pingdotgg/t3code?private=query", 64)).toBe(      "https://www.google.com/s2/favicons?domain=github.com%3A8443&sz=64",    );  });   it.each([null, undefined, "", "invalid URL", "file:///tmp/private", "data:text/plain,private"])(    "rejects an invalid or unsupported origin %s",    (origin) => {      expect(faviconUrlForOrigin(origin)).toBeNull();    },  );}); describe("toolActivityFaviconUrl", () => {  it("uses the page origin instead of a third-party favicon service", () => {    expect(toolActivityFaviconUrl({ pageUrl: "https://example.com/docs/page?q=1" }, "light")).toBe(      "https://example.com/favicon.ico",    );    expect(toolActivityFaviconUrl({ pageUrl: "http://localhost:5173/app" }, "light")).toBe(      "http://localhost:5173/favicon.ico",    );  });   it("selects site-owned light and dark variants without filtering full-color icons", () => {    expect(toolActivityFaviconUrl({ pageUrl: "https://github.com/openai/codex" }, "light")).toBe(      "https://github.githubassets.com/favicons/favicon.svg",    );    expect(toolActivityFaviconUrl({ pageUrl: "https://github.com/openai/codex" }, "dark")).toBe(      "https://github.githubassets.com/favicons/favicon-dark.svg",    );     const fullColorIcon = {      pageUrl: "https://example.com/docs",      faviconUrl: "https://cdn.example.com/full-color.png",    };    expect(toolActivityFaviconUrl(fullColorIcon, "light")).toBe(fullColorIcon.faviconUrl);    expect(toolActivityFaviconUrl(fullColorIcon, "dark")).toBe(fullColorIcon.faviconUrl);  });   it("prefers a provider-supplied dark favicon", () => {    expect(      toolActivityFaviconUrl(        {          pageUrl: "https://example.com/docs",          faviconUrl: "https://example.com/light.svg",          faviconUrlDark: "https://example.com/dark.svg",        },        "dark",      ),    ).toBe("https://example.com/dark.svg");  });   it("accepts provider-supplied image URLs but rejects extension URLs", () => {    expect(      toolActivityFaviconUrl(        { pageUrl: "https://example.com/docs", faviconUrl: "https://example.com/icon.png" },        "light",      ),    ).toBe("https://example.com/icon.png");    expect(      toolActivityFaviconUrl(        { pageUrl: "https://example.com/docs", faviconUrl: "chrome-extension://example/_favicon/" },        "light",      ),    ).toBe("https://example.com/favicon.ico");  });});