import { afterEach, describe, expect, it } from "vitest";

import { faviconUrl } from "./favicon";

describe("shared favicon", () => {
  afterEach(() => {
    delete (globalThis as { chrome?: typeof chrome }).chrome;
  });

  it("faviconUrl returns a chrome-extension favicon URL when runtime.getURL exists", () => {
    (globalThis as { chrome?: typeof chrome }).chrome = {
      runtime: {
        getURL: (path: string) => `chrome-extension://peach${path}`,
      },
    } as unknown as typeof chrome;

    const url = faviconUrl("github.com");

    expect(url).toContain("chrome-extension://peach/_favicon/");
    expect(url).toContain("pageUrl=https%3A%2F%2Fgithub.com");
    expect(url).toContain("size=32");
  });

  it("faviconUrl returns null when the runtime API is unavailable", () => {
    expect(faviconUrl("github.com")).toBeNull();
  });

  it("faviconUrl never returns an external URL", () => {
    (globalThis as { chrome?: typeof chrome }).chrome = {
      runtime: {
        getURL: (path: string) => `chrome-extension://peach${path}`,
      },
    } as unknown as typeof chrome;

    const url = faviconUrl("github.com");

    expect(url).not.toContain("http://");
    expect(url?.startsWith("chrome-extension://")).toBe(true);
  });
});