porchlight/tests/test_userid.py
2026-02-12 15:34:31 +01:00

63 lines
1.9 KiB
Python

from unittest.mock import AsyncMock
import pytest
from fastapi_oidc_op.models import User
from fastapi_oidc_op.userid import generate_unique_userid, generate_userid
def test_generate_userid_format() -> None:
userid = generate_userid()
# 32-bit proquint format: xxxxx-xxxxx
parts = userid.split("-")
assert len(parts) == 2
for part in parts:
assert len(part) == 5
def test_generate_userid_uniqueness() -> None:
ids = {generate_userid() for _ in range(100)}
assert len(ids) == 100 # All unique
def test_generate_userid_is_lowercase() -> None:
userid = generate_userid()
assert userid == userid.lower()
@pytest.mark.anyio
async def test_generate_unique_userid_no_collision() -> None:
"""Returns a userid when no collision occurs."""
user_repo = AsyncMock()
user_repo.get_by_userid.return_value = None
result = await generate_unique_userid(user_repo)
parts = result.split("-")
assert len(parts) == 2
user_repo.get_by_userid.assert_called_once_with(result)
@pytest.mark.anyio
async def test_generate_unique_userid_retries_on_collision() -> None:
"""Retries when a collision is detected and succeeds on second attempt."""
existing_user = User(userid="taken-xxxxx", username="existing")
user_repo = AsyncMock()
user_repo.get_by_userid.side_effect = [existing_user, None]
result = await generate_unique_userid(user_repo)
assert user_repo.get_by_userid.call_count == 2
parts = result.split("-")
assert len(parts) == 2
@pytest.mark.anyio
async def test_generate_unique_userid_raises_after_max_retries() -> None:
"""Raises RuntimeError when max retries are exhausted."""
existing_user = User(userid="taken-xxxxx", username="existing")
user_repo = AsyncMock()
user_repo.get_by_userid.return_value = existing_user
with pytest.raises(RuntimeError, match="Failed to generate unique userid"):
await generate_unique_userid(user_repo)