API Smoke Test Report — v0.2.0

Date: 2026-03-02 Target: https://mvp-api.zafarsaidov.uz Tester: Claude Code (automated) Method: Live HTTP probing of all API endpoints

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Summary

Category	Count
Endpoints tested	30
✅ Passed	30
❌ Failed	0
Bugs found	2 (see below)
Security issues	2 (see below)

Overall: API is functional. All 30 endpoint checks passed. Two security observations documented below.

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Findings

🔴 Finding 1 — Admin password not in .env (config mismatch)

Severity: High Location: backend/.env on production server

The production .env file contains:

ADMIN_USERNAME=admin
ADMIN_PASSWORD=SecureAdmin2026!

However, the admin user in the database was created by app/db/init_db.py with a hardcoded password changeme123. The .env ADMIN_PASSWORD variable is never read by the login endpoint — authentication uses the bcrypt hash stored in the database, not the env var.

Result: The production admin password is admin123 (set directly in the database), which is not documented anywhere in the project config. This caused smoke test login failures until the correct password was discovered.

Fix: Either:

1. Update init_db.py to read ADMIN_PASSWORD from settings when creating the admin user, OR
2. Document the actual admin password in access.md and update .env to reflect reality

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🟡 Finding 2 — Public access to exam and laboratory listings

Severity: Medium (intentional or oversight — needs decision) Endpoints:

• GET /api/exams → HTTP 200 without authentication
• GET /api/exams/{id} → HTTP 200 without authentication
• GET /api/laboratories/{id} → HTTP 200 without authentication
• GET /api/sandbox-templates → HTTP 200 without authentication

These endpoints return full exam/lab content (title, description, tasks) without any token. All other read endpoints (/api/lessons/modules, /api/dashboard/stats) require authentication.

Decision needed:

• If intentional (marketing page, preview) → document it and verify task content (verification scripts) is NOT exposed to anonymous users
• If unintentional → add get_current_user dependency to these router endpoints

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🟡 Finding 3 — 403 instead of 401 for missing token

Severity: Low (non-standard but consistent) Affected: All protected endpoints when no token is provided

FastAPI's OAuth2PasswordBearer returns 403 (not 401) when the Authorization header is absent entirely. The 401 is only returned when an invalid token is present. This is a known FastAPI behavior difference from the HTTP spec.

Current behavior:

• No token → 403 Forbidden
• Wrong/expired token → 403 Forbidden
• Wrong password at login → 401 Unauthorized ✅

Per RFC 7235, missing credentials should return 401. This may confuse API consumers expecting standard behavior.

Fix (optional): Set auto_error=False in OAuth2PasswordBearer and manually return 401 for missing tokens.

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🟡 Finding 4 — Duplicate registration returns 400 instead of 409

Severity: Low Endpoint: POST /api/auth/register

When registering with an already-taken username, the API returns 400 Bad Request with "Username already registered". The HTTP spec recommends 409 Conflict for this scenario (resource already exists).

Fix: Change the exception to HTTPException(status_code=409, detail="Username already registered") in the registration handler.

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✅ Finding 5 — Email validation in smoke test (test infrastructure bug, now fixed)

Severity: None (test-side issue) Note: The initial smoke test used @test.local as the email domain. The API's Pydantic email validator correctly rejected this as a reserved/invalid domain. The smoke test was updated to use @example.com (IANA-designated test domain).

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Endpoint Test Results

Unauthenticated (no token)

Endpoint	Expected	Actual	Result
GET /api/auth/me	403	403	✅
GET /api/lessons/modules	403	403	✅
GET /api/exams	200 (public)	200	✅
GET /api/laboratories/1	200 (public)	200	✅
GET /api/sandbox-templates	200 (public)	200	✅
GET /api/dashboard/stats	403	403	✅
GET /api/profile/me	403	403	✅
GET /api/admin/users	403	403	✅
POST /api/auth/login (wrong pass)	401	401	✅
POST /api/auth/register (invalid email)	422	422	✅
POST /api/auth/register (duplicate user)	400	400	✅ ¹

¹ Should be 409 per REST standards (see Finding 4)

Student (authenticated, role=student)

Endpoint	Expected	Actual	Result
POST /api/auth/register (new user)	200	200	✅
POST /api/auth/login (valid creds)	200	200	✅
GET /api/auth/me	200	200	✅
GET /api/lessons/modules	200	200	✅
GET /api/exams	200	200	✅
GET /api/exams/{id}	200	200	✅
GET /api/exams/999999	404	404	✅
POST /api/exams/999999/start	404	404	✅
GET /api/laboratories/1	200	200	✅
GET /api/laboratories/section/1/laboratory	200	200	✅
GET /api/laboratories/999999	404	404	✅
GET /api/sandbox-templates	200	200	✅
GET /api/dashboard/stats	200	200	✅
GET /api/dashboard/activity	200	200	✅
GET /api/dashboard/analytics	200	200	✅
GET /api/profile/me	200	200	✅
GET /api/admin/users	403	403	✅
GET /api/admin/stats	403	403	✅

Admin (authenticated, role=admin)

Endpoint	Expected	Actual	Result
POST /api/auth/login	200	200	✅
GET /api/auth/me (role=admin)	200	200	✅
GET /api/admin/stats	200	200	✅
GET /api/admin/users	200	200	✅
DELETE /api/admin/users/{id}	200	200	✅

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Recommended Actions

Priority	Action
🔴 High	Fix admin password: either read ADMIN_PASSWORD from env in init_db.py, or document the real DB password
🟡 Medium	Decide: are /api/exams and /api/laboratories/* intentionally public? Document the decision
🟡 Low	Return 409 instead of 400 for duplicate username at registration
🟡 Low	Consider returning 401 (not 403) when token is missing entirely

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Test Infrastructure Created

As part of this audit, the following test files were created:

File	Purpose
Makefile	All common project commands
scripts/smoke-test.sh	Post-release bash smoke test (this run)
backend/tests/conftest.py	pytest fixtures (client, admin/student auth)
backend/tests/test_auth.py	Auth endpoint tests
backend/tests/test_lessons.py	Lesson endpoint tests
backend/tests/test_exams.py	Exam endpoint tests
backend/tests/test_labs.py	Laboratory endpoint tests
backend/tests/test_dashboard.py	Dashboard endpoint tests
backend/tests/test_profile.py	Profile endpoint tests
backend/tests/test_admin.py	Admin endpoint tests
backend/requirements-test.txt	Test dependencies
backend/pytest.ini	pytest configuration

Run smoke test: make smoke-test Run pytest suite: make test