[FEATURE] extend error scenarios

[chrisw-dev]

Summary

After re-running the previously skipped OAuth error scenario tests, we discovered that the mock OAuth server has been partially updated and now supports some error scenarios!

Test Results

✅ Tests Now Passing (10 total)

Basic OAuth Flow (7 tests):

1. ✅ should complete OAuth flow with mock server
2. ✅ should receive session cookie after authentication
3. ✅ should show user information on dashboard
4. ✅ should be able to logout
5. ✅ should redirect to dashboard after login
6. ✅ Basic Page Navigation: should load home page
7. ✅ Basic Page Navigation: should have navigation links on home page

OAuth Error Scenarios (3 tests - NOW WORKING!):
8. ✅ should handle OAuth access denied error ⭐ NEW
9. ✅ should handle server error from OAuth provider ⭐ NEW
10. ✅ should handle token endpoint error ⭐ NEW

⏭️ Tests Still Skipped (7 total)

Requires mock OAuth server improvements:

1. ⏭️ should redirect to login when accessing dashboard without authentication

   • Issue: Navigating to /dashboard without auth still completes OAuth flow
   • Needs: Proper unauthenticated redirect handling

2. ⏭️ should handle unauthorized client error

   • Issue: Error scenario not properly blocking authentication

3. ⏭️ should handle invalid scope error

   • Issue: Error scenario not properly blocking authentication

4. ⏭️ should handle temporarily unavailable error

   • Issue: Error scenario not properly blocking authentication

5. ⏭️ should handle invalid request error

   • Issue: Error scenario not properly blocking authentication

6. ⏭️ should handle unsupported response type error

   • Issue: Error scenario not properly blocking authentication

7. ⏭️ should recover from error scenario when disabled

   • Issue: Depends on other error scenarios working first

Mock OAuth Server Status

Current Version:

• Created: October 25, 2025
• Digest: sha256:cafa3d8522d5f3147956b1bcaecaeb35493ac93ebde7674ec8b8d1be960fb6f0
• Repository: https://github.com/chrisw-dev/golang-mock-oauth2-server

Error Scenarios - Support Status:

Error Type	Status	Notes
access_denied	✅ WORKS	Properly blocks auth and redirects
server_error	✅ WORKS	Properly handled
Token endpoint errors	✅ WORKS	invalid_grant working
unauthorized_client	❌ FAILS	Still auto-approves
invalid_scope	❌ FAILS	Still auto-approves
temporarily_unavailable	❌ FAILS	Still auto-approves
invalid_request	❌ FAILS	Still auto-approves
unsupported_response_type	❌ FAILS	Still auto-approves

Progress

Before (original issue):

• 9 tests failing
• 1 test skipped
• 7 tests passing

After mock OAuth update:

• 0 tests failing ✨
• 7 tests skipped (waiting on mock OAuth improvements)
• 10 tests passing ✅ (+3 new passing tests!)