import { describe, expect, it } from "vite-plus/test"; import {  BROWSER_FAVICON_MAX_ENTRIES,  type BrowserFaviconEntry,  evictExcessFavicons,  faviconKey,  faviconStorageLocation,  isStorableFaviconDataUrl,  migratePersistedBrowserFaviconState,} from "./browserFaviconLogic"; const PNG = "data:image/png;base64,AAAA"; function entry(capturedAt = 0): BrowserFaviconEntry {  return { dataUrl: PNG, capturedAt };} describe("browser favicon logic", () => {  it("keys valid origins canonically while keeping distinct scopes separate", () => {    expect(faviconKey("env:project", "http://myapp.test:3000/admin?x=1", null)).toBe(      "env:project http://myapp.test:3000",    );    expect(faviconKey("env:project", "http://192.168.64.2:3000/", "192.168.64.2")).toBe(      faviconKey("env:project", "http://localhost:3000/", "192.168.64.2"),    );    expect(faviconKey("env:project", "http://127.0.0.1:3000/", null)).toBe(      faviconKey("env:project", "http://0.0.0.0:3000/", null),    );    const keys = [      faviconKey("env:a", "http://localhost:3000/", null),      faviconKey("env:b", "http://localhost:3000/", null),      faviconKey("env:a", "http://localhost:5173/", null),      faviconKey("env:a", "https://localhost:3000/", null),      faviconKey("env:a", "http://192.168.1.50:3000/", "192.168.64.2"),    ];    expect(new Set(keys).size).toBe(keys.length);    expect(faviconKey("env:a", "not a url", null)).toBeNull();    expect(faviconKey("env:a", "ftp://example.com/", null)).toBeNull();    expect(faviconKey("", "http://localhost/", null)).toBeNull();    expect(faviconKey("env:a", "http://local:3000/", null)).not.toBe(      faviconKey("env:a", "http://localhost:3000/", null),    );  });   it("retains an exact environment-host alias for offline lookup", () => {    const expected = {      aliases: ["192.168.64.2"],      key: "env:project http://localhost:3000",    };    expect(      faviconStorageLocation("env:project", "http://localhost:3000/app", "192.168.64.2"),    ).toEqual(expected);    expect(      faviconStorageLocation("env:project", "http://192.168.64.2:3000/app", "192.168.64.2"),    ).toEqual(expected);    expect(      faviconStorageLocation("env:project", "https://example.com/app", "192.168.64.2"),    ).toEqual({ aliases: [], key: "env:project https://example.com:443" });    expect(faviconStorageLocation("env:project", "http://localhost:3000/app", "fd00::1")).toEqual({      aliases: ["fd00::1"],      key: "env:project http://localhost:3000",    });    expect(faviconKey("env:project", "http://[2001:4860:4860::8888]/", null)).toBe(      "env:project http://[2001:4860:4860::8888]:80",    );  });   it("accepts only bounded base64 PNG data", () => {    expect(isStorableFaviconDataUrl(PNG)).toBe(true);    expect(isStorableFaviconDataUrl("data:image/svg+xml;base64,AAAA")).toBe(false);    expect(isStorableFaviconDataUrl("data:image/png;base64,")).toBe(false);    expect(isStorableFaviconDataUrl("data:image/png;base64,%%%%")).toBe(false);    expect(isStorableFaviconDataUrl(`data:image/png;base64,${"A".repeat(8192)}`)).toBe(false);  });   it("evicts old entries and sanitizes hydrated state", () => {    const byKey = Object.fromEntries(      Array.from({ length: BROWSER_FAVICON_MAX_ENTRIES + 2 }, (_, index) => [        `key-${index}`,        entry(index),      ]),    );    const result = evictExcessFavicons(byKey);    expect(Object.keys(result)).toHaveLength(BROWSER_FAVICON_MAX_ENTRIES);    expect(result["key-0"]).toBeUndefined();    expect(result["key-1"]).toBeUndefined();    expect(      migratePersistedBrowserFaviconState({        byKey: {          "env:project http://local:3000": entry(4),          "env:project http://localhost:3000": entry(5),          "env:project http://localhost:3003": {            ...entry(6),            aliases: [              "192.168.64.2",              "192.168.64.2",              "192.168.64.3",              "192.168.64.4",              "192.168.64.5",              "192.168.64.6",              "Not Normalized",              "not a host/",              "x".repeat(5_000),            ],          },          "env:project http://localhost:3001": {            dataUrl: "https://example.com/icon.png",            capturedAt: 6,          },          "env:project http://localhost:3002": { dataUrl: PNG, capturedAt: Number.NaN },        },      }),    ).toEqual({      byKey: {        "env:project http://localhost:3000": entry(5),        "env:project http://localhost:3003": {          ...entry(6),          aliases: ["192.168.64.2", "192.168.64.3", "192.168.64.4", "192.168.64.5"],        },      },    });  });});