mitlist/be/tests/crud/test_user.py

128 lines
5.3 KiB
Python

import pytest
from unittest.mock import AsyncMock, MagicMock
from sqlalchemy.exc import IntegrityError, OperationalError
from app.crud.user import get_user_by_email, create_user
from app.schemas.user import UserCreate
from app.models import User as UserModel
from app.core.exceptions import (
UserCreationError,
EmailAlreadyRegisteredError,
DatabaseConnectionError,
DatabaseIntegrityError,
DatabaseQueryError,
DatabaseTransactionError
)
# Fixtures
@pytest.fixture
def mock_db_session():
session = AsyncMock()
session.begin = AsyncMock()
session.begin_nested = AsyncMock()
session.commit = AsyncMock()
session.rollback = AsyncMock()
session.refresh = AsyncMock()
session.add = MagicMock()
session.delete = MagicMock()
session.execute = AsyncMock()
session.get = AsyncMock()
session.flush = AsyncMock()
session.in_transaction = MagicMock(return_value=False)
return session
@pytest.fixture
def user_create_data():
return UserCreate(email="test@example.com", password="password123", name="Test User")
@pytest.fixture
def existing_user_data():
return UserModel(id=1, email="exists@example.com", password_hash="hashed_password", name="Existing User")
# Tests for get_user_by_email
@pytest.mark.asyncio
async def test_get_user_by_email_found(mock_db_session, existing_user_data):
mock_result = AsyncMock()
mock_result.scalars.return_value.first.return_value = existing_user_data
mock_db_session.execute.return_value = mock_result
user = await get_user_by_email(mock_db_session, "exists@example.com")
assert user is not None
assert user.email == "exists@example.com"
mock_db_session.execute.assert_called_once()
@pytest.mark.asyncio
async def test_get_user_by_email_not_found(mock_db_session):
mock_result = AsyncMock()
mock_result.scalars.return_value.first.return_value = None
mock_db_session.execute.return_value = mock_result
user = await get_user_by_email(mock_db_session, "nonexistent@example.com")
assert user is None
mock_db_session.execute.assert_called_once()
@pytest.mark.asyncio
async def test_get_user_by_email_db_connection_error(mock_db_session):
mock_db_session.execute.side_effect = OperationalError("mock_op_error", "params", "orig")
with pytest.raises(DatabaseConnectionError):
await get_user_by_email(mock_db_session, "test@example.com")
@pytest.mark.asyncio
async def test_get_user_by_email_db_query_error(mock_db_session):
# Simulate a generic SQLAlchemyError that is not OperationalError
mock_db_session.execute.side_effect = IntegrityError("mock_sql_error", "params", "orig") # Using IntegrityError as an example of SQLAlchemyError
with pytest.raises(DatabaseQueryError):
await get_user_by_email(mock_db_session, "test@example.com")
# Tests for create_user
@pytest.mark.asyncio
async def test_create_user_success(mock_db_session, user_create_data):
mock_result = AsyncMock()
mock_result.scalar_one_or_none.return_value = UserModel(
id=1,
email=user_create_data.email,
name=user_create_data.name,
password_hash="hashed_password" # This would be set by the actual hash_password function
)
mock_db_session.execute.return_value = mock_result
created_user = await create_user(mock_db_session, user_create_data)
mock_db_session.add.assert_called_once()
mock_db_session.flush.assert_called_once()
assert created_user is not None
assert created_user.email == user_create_data.email
assert created_user.name == user_create_data.name
assert created_user.id == 1
@pytest.mark.asyncio
async def test_create_user_email_already_registered(mock_db_session, user_create_data):
mock_db_session.flush.side_effect = IntegrityError("mock error (unique constraint)", "params", "orig")
with pytest.raises(EmailAlreadyRegisteredError):
await create_user(mock_db_session, user_create_data)
@pytest.mark.asyncio
async def test_create_user_db_integrity_error_not_unique(mock_db_session, user_create_data):
# Simulate an IntegrityError that is not related to a unique constraint
mock_db_session.flush.side_effect = IntegrityError("mock error (not unique constraint)", "params", "orig")
with pytest.raises(DatabaseIntegrityError):
await create_user(mock_db_session, user_create_data)
@pytest.mark.asyncio
async def test_create_user_db_connection_error(mock_db_session, user_create_data):
mock_db_session.begin.side_effect = OperationalError("mock_op_error", "params", "orig")
with pytest.raises(DatabaseConnectionError):
await create_user(mock_db_session, user_create_data)
# also test OperationalError on flush
mock_db_session.begin.side_effect = None # reset side effect
mock_db_session.flush.side_effect = OperationalError("mock_op_error", "params", "orig")
with pytest.raises(DatabaseConnectionError):
await create_user(mock_db_session, user_create_data)
@pytest.mark.asyncio
async def test_create_user_db_transaction_error(mock_db_session, user_create_data):
# Simulate a generic SQLAlchemyError on flush that is not IntegrityError or OperationalError
mock_db_session.flush.side_effect = UserCreationError("Simulated non-specific SQLAlchemyError") # Or any other SQLAlchemyError
with pytest.raises(DatabaseTransactionError):
await create_user(mock_db_session, user_create_data)