test: add OAuth login route test suite (22 cases)

Guards the browser OAuth popup flow used by claude.ai and ChatGPT:
- GET /login: return_to URL validation, XSS escaping, error display
- POST /login: first-party cookie properties (httpOnly/secure/lax/domain),
  open redirect blocking, credential rejection paths
- GET /oauth/authorize: must redirect to /login (never app.squaremcp.com),
  return_to encoding, valid session bypasses redirect

Also exports `app` from index.ts and guards main() with NODE_ENV !== 'test'
so the Express app can be imported by supertest without triggering DB init.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Garfield
2026-05-14 17:57:29 -04:00
parent 02398258a5
commit d6302a673d
4 changed files with 716 additions and 4 deletions

286
package-lock.json generated
View File

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