Files
modbison/backend/tests/test_auth_endpoints.py
T

242 lines
8.0 KiB
Python

"""Integration tests for the auth endpoints (register + login).
These tests hit the real FastAPI app with an in-memory SQLite database,
so they exercise the full stack: Pydantic validation → DB → JWT → response.
"""
import pytest
from fastapi.testclient import TestClient
from app.main import app
from app.database import get_db, override_get_db
from app.routers.auth import pwd_context
# ---------------------------------------------------------------------------
# Test fixtures
# ---------------------------------------------------------------------------
@pytest.fixture(autouse=True)
def _override_db():
"""Use an in-memory SQLite DB for every test."""
from app.database import engine, Base, async_session_factory
Base.metadata.create_all(bind=engine)
from app.database import SessionLocal
async def _get_db():
async_session = async_session_factory()
try:
yield async_session
await async_session.commit()
except Exception:
await async_session.rollback()
raise
finally:
await async_session.close()
app.dependency_overrides[get_db] = _get_db
yield
app.dependency_overrides.clear()
# ---------------------------------------------------------------------------
# Register endpoint
# ---------------------------------------------------------------------------
class TestRegister:
"""Tests for POST /api/auth/register."""
def test_register_success(self):
"""A valid registration returns 201 with a token."""
client = TestClient(app)
resp = client.post(
"/api/auth/register",
json={
"username": "newuser",
"email": "new@example.com",
"password": "secret123",
"date_of_birth": "2000-01-01",
},
)
assert resp.status_code == 201
data = resp.json()
assert "access_token" in data
assert data["token_type"] == "bearer"
def test_register_rejects_underage(self):
"""Users under 18 get a 400 with a detail message."""
client = TestClient(app)
resp = client.post(
"/api/auth/register",
json={
"username": "kid",
"email": "kid@example.com",
"password": "secret123",
"date_of_birth": "2010-06-15", # ~15 years old
},
)
assert resp.status_code == 400
assert "18 or older" in resp.json()["detail"]
def test_register_rejects_duplicate_username(self):
"""Registering the same username twice returns 409."""
client = TestClient(app)
# First registration
client.post(
"/api/auth/register",
json={
"username": "duplicate",
"email": "dup1@example.com",
"password": "secret123",
"date_of_birth": "2000-01-01",
},
)
# Second registration with same username, different email
resp = client.post(
"/api/auth/register",
json={
"username": "duplicate",
"email": "dup2@example.com",
"password": "secret123",
"date_of_birth": "2000-01-01",
},
)
assert resp.status_code == 409
assert "Username already registered" in resp.json()["detail"]
def test_register_rejects_duplicate_email(self):
"""Registering the same email twice returns 409."""
client = TestClient(app)
client.post(
"/api/auth/register",
json={
"username": "user1",
"email": "same@example.com",
"password": "secret123",
"date_of_birth": "2000-01-01",
},
)
resp = client.post(
"/api/auth/register",
json={
"username": "user2",
"email": "same@example.com",
"password": "secret123",
"date_of_birth": "2000-01-01",
},
)
assert resp.status_code == 409
assert "Email already registered" in resp.json()["detail"]
def test_register_invalid_date_format(self):
"""Invalid date format returns 422 validation error."""
client = TestClient(app)
resp = client.post(
"/api/auth/register",
json={
"username": "user",
"email": "user@example.com",
"password": "secret123",
"date_of_birth": "01-01-2000", # wrong format
},
)
assert resp.status_code == 422
def test_register_exactly_18(self):
"""A user who just turned 18 can register."""
client = TestClient(app)
resp = client.post(
"/api/auth/register",
json={
"username": "just18",
"email": "just18@example.com",
"password": "secret123",
"date_of_birth": "2007-06-15",
},
)
assert resp.status_code == 201
# ---------------------------------------------------------------------------
# Login endpoint
# ---------------------------------------------------------------------------
class TestLogin:
"""Tests for POST /api/auth/login."""
def _create_user(self, username: str, password: str, email: str = None):
"""Helper to create a user via register."""
client = TestClient(app)
if email is None:
email = f"{username}@example.com"
resp = client.post(
"/api/auth/register",
json={
"username": username,
"email": email,
"password": password,
"date_of_birth": "2000-01-01",
},
)
assert resp.status_code == 201
return resp.json()["access_token"]
def test_login_success(self):
"""Correct credentials return a token."""
self._create_user("loginuser", "correctpass")
client = TestClient(app)
resp = client.post(
"/api/auth/login",
data={"username": "loginuser", "password": "correctpass"},
)
assert resp.status_code == 200
data = resp.json()
assert "access_token" in data
assert data["token_type"] == "bearer"
def test_login_wrong_password(self):
"""Wrong password returns 401."""
self._create_user("loginuser", "correctpass")
client = TestClient(app)
resp = client.post(
"/api/auth/login",
data={"username": "loginuser", "password": "wrongpass"},
)
assert resp.status_code == 401
assert "Incorrect username or password" in resp.json()["detail"]
def test_login_nonexistent_user(self):
"""Non-existent user returns 401 (not 404)."""
client = TestClient(app)
resp = client.post(
"/api/auth/login",
data={"username": "nobody", "password": "any"},
)
assert resp.status_code == 401
assert "Incorrect username or password" in resp.json()["detail"]
def test_login_accepts_form_encoded(self):
"""Login accepts application/x-www-form-urlencoded (OAuth2)."""
self._create_user("formuser", "formpass")
client = TestClient(app)
resp = client.post(
"/api/auth/login",
data={"username": "formuser", "password": "formpass"},
)
assert resp.status_code == 200
assert "access_token" in resp.json()
def test_login_token_is_valid_jwt(self):
"""The returned token is a valid JWT that can be decoded."""
self._create_user("jwttoken", "jwt123")
client = TestClient(app)
resp = client.post(
"/api/auth/login",
data={"username": "jwttoken", "password": "jwt123"},
)
token = resp.json()["access_token"]
# Verify it's a 3-part JWT
parts = token.split(".")
assert len(parts) == 3