/**
 * App startup require-graph smoke test (DC-020 regression guard)
 *
 * WHY THIS EXISTS:
 *   The `refactor(desloppify)` commit deleted `license-keygen.js` thinking it was
 *   stale dev-root noise. It is actually required by `src/managers/license-manager.js`
 *   (`require('./license-keygen')`). The deletion put the production `dashcaddy-api`
 *   container in a crash-restart loop (MODULE_NOT_FOUND from /app/src/app.js). The
 *   full Jest suite (1036 tests) passed anyway because NO test ever executed
 *   `require()` on the real app module — every "app" test read src/app.js as a
 *   string or rebuilt a minimal Express app with copied handlers.
 *
 *   This test closes that gap: it executes the real production require graph and
 *   asserts it resolves without throwing. Any future deletion of a required module,
 *   or any broken relative require, will fail here instead of crashing the container
 *   on the next deploy.
 */
const path = require('path');

describe('app startup require-graph smoke', () => {
  it('src/app.js and its entire require graph load without throwing', () => {
    expect(() => require(path.join(__dirname, '..', 'src', 'app'))).not.toThrow();
  });

  it('createApp is exported as a function', () => {
    const mod = require(path.join(__dirname, '..', 'src', 'app'));
    expect(typeof mod.createApp).toBe('function');
  });
});