import { describe, expect, it } from "vite-plus/test"; import { isPublicFaviconHost } from "./hostClassification.ts"; describe("isPublicFaviconHost", () => {  it("treats public hosts as public", () => {    for (const host of [      "github.com",      "www.google.com",      "t3.chat",      "sub.domain.example.co.uk",      "8.8.8.8",      "1.1.1.1",      "100.200.1.1",      "172.32.0.1",      "192.167.1.1",      "11.0.0.1",    ]) {      expect(isPublicFaviconHost(host), host).toBe(true);    }  });   it("detects private IPv4 ranges", () => {    for (const host of [      "0.0.0.0",      "10.0.0.1",      "10.255.255.255",      "127.0.0.1",      "192.168.1.10",      "172.16.0.1",      "172.31.255.255",      "169.254.1.1",    ]) {      expect(isPublicFaviconHost(host), host).toBe(false);    }  });   it("detects the Tailscale 100.64.0.0/10 range", () => {    for (const host of ["100.64.0.1", "100.100.100.100", "100.126.17.15", "100.127.255.255"]) {      expect(isPublicFaviconHost(host), host).toBe(false);    }    expect(isPublicFaviconHost("100.63.255.255")).toBe(true);    expect(isPublicFaviconHost("100.128.0.1")).toBe(true);  });   it("detects private host names and suffixes", () => {    for (const host of [      "localhost",      "air",      "printer.local",      "api.internal",      "router.home.arpa",      "home.arpa",      "box.tailnet.ts.net",      "AIR.TAILE8BEA7.TS.NET",    ]) {      expect(isPublicFaviconHost(host), host).toBe(false);    }  });   it("detects private IPv6 addresses", () => {    for (const host of ["::1", "[::1]", "fd00::1", "fc00::1", "fe80::1", "FD12:3456::1"]) {      expect(isPublicFaviconHost(host), host).toBe(false);    }    expect(isPublicFaviconHost("2606:4700:4700::1111")).toBe(true);  });   it("detects IPv4-mapped IPv6 addresses in both spellings", () => {    for (const host of [      "::ffff:192.168.1.10",      "::ffff:10.0.0.1",      "::ffff:100.126.17.15",      "[::ffff:192.168.1.10]",      // c0a8:010a is 192.168.1.10, 0a00:0001 is 10.0.0.1.      "::ffff:c0a8:010a",      "::ffff:a00:1",    ]) {      expect(isPublicFaviconHost(host), host).toBe(false);    }    expect(isPublicFaviconHost("::ffff:8.8.8.8")).toBe(true);    expect(isPublicFaviconHost("::ffff:808:808")).toBe(true);  });   it("ignores a trailing DNS root label", () => {    for (const host of [      "localhost.",      "printer.local.",      "api.internal.",      "box.tailnet.ts.net.",      "air.",    ]) {      expect(isPublicFaviconHost(host), host).toBe(false);    }    expect(isPublicFaviconHost("github.com.")).toBe(true);  });   it("detects names under .localhost", () => {    for (const host of ["app.localhost", "api.app.localhost", "APP.LOCALHOST"]) {      expect(isPublicFaviconHost(host), host).toBe(false);    }  });   it("treats an empty host as private", () => {    expect(isPublicFaviconHost("")).toBe(false);    expect(isPublicFaviconHost("   ")).toBe(false);  });   it("rejects malformed IPv4 text as a public host", () => {    expect(isPublicFaviconHost("10.0.0.999")).toBe(true);    expect(isPublicFaviconHost("10.0.0")).toBe(true);  });});