/**
 * Resilience test for a missing PDF render engine (OPL-2653).
 *
 * The desktop server bundle externalizes playwright-core. If it was not copied
 * into the packaged bundle, the first runtime access fails with a module-load
 * error (e.g. turbopack's "Failed to load external module playwright-core-…").
 * `launchBrowser` must convert that into the typed PdfBrowserLaunchError sentinel
 * so PDF routes degrade gracefully (report -> 503, invoice -> libpdf fallback)
 * instead of leaking a bare 500.
 *
 * The failure is simulated through runtime.ts's import seam
 * (__setPlaywrightCoreImportForTests) rather than mock.module("playwright-core"):
 * bun's module mocks are process-global and leak across test files in
 * platform-dependent file order — on Linux CI a module mock here made
 * runtime.test.ts's static `chromium` import undefined and silently skipped
 * renderer.smoke.test.ts. The seam scopes the poison to exactly these tests.
 */

import { afterAll, beforeAll, describe, expect, test } from "bun:test";
import {
  __setPlaywrightCoreImportForTests,
  launchBrowser,
  PdfBrowserLaunchError,
} from "./runtime";

beforeAll(() => {
  __setPlaywrightCoreImportForTests(() => {
    throw new Error("Failed to load external module playwright-core-deadbeef");
  });
});

afterAll(() => {
  __setPlaywrightCoreImportForTests(null);
});

describe("launchBrowser when playwright-core cannot be loaded", () => {
  test("local: a module-load failure surfaces as PdfBrowserLaunchError", async () => {
    await expect(launchBrowser("local")).rejects.toBeInstanceOf(
      PdfBrowserLaunchError,
    );
  });

  test("serverless: a module-load failure surfaces as PdfBrowserLaunchError", async () => {
    await expect(launchBrowser("serverless")).rejects.toBeInstanceOf(
      PdfBrowserLaunchError,
    );
  });
});