Files
LangBot/tests/unit_tests/persistence/test_serialize_model.py
2026-05-16 10:30:17 +08:00

129 lines
4.1 KiB
Python

"""Unit tests for persistence serialize_model function.
Tests cover:
- serialize_model() with various column types
- datetime conversion to isoformat
- masked_columns exclusion
"""
from __future__ import annotations
import datetime
from unittest.mock import Mock
from sqlalchemy import Column, Integer, String, DateTime
from sqlalchemy.orm import declarative_base
from importlib import import_module
def get_persistence_module():
"""Lazy import to avoid circular import issues."""
return import_module('langbot.pkg.persistence.mgr')
# Create a simple test model
Base = declarative_base()
class TestModel(Base):
__tablename__ = 'test_model'
id = Column(Integer, primary_key=True)
name = Column(String(50))
created_at = Column(DateTime)
updated_at = Column(DateTime, nullable=True)
class TestSerializeModel:
"""Tests for serialize_model method."""
def test_serialize_string_and_int_columns(self):
"""Test that string and int columns are serialized directly."""
persistence = get_persistence_module()
# Create a mock persistence manager
mock_app = Mock()
mock_app.persistence_mgr = None
mgr = persistence.PersistenceManager(mock_app)
# Create test model instance
instance = TestModel(id=1, name='test_name', created_at=datetime.datetime(2024, 1, 15, 10, 30, 0))
result = mgr.serialize_model(TestModel, instance)
assert result['id'] == 1
assert result['name'] == 'test_name'
def test_serialize_datetime_to_isoformat(self):
"""Test that datetime columns are converted to isoformat string."""
persistence = get_persistence_module()
mock_app = Mock()
mgr = persistence.PersistenceManager(mock_app)
dt = datetime.datetime(2024, 1, 15, 10, 30, 45)
instance = TestModel(id=1, name='test', created_at=dt)
result = mgr.serialize_model(TestModel, instance)
assert result['created_at'] == '2024-01-15T10:30:45'
assert isinstance(result['created_at'], str)
def test_serialize_datetime_with_timezone(self):
"""Test datetime with timezone conversion."""
persistence = get_persistence_module()
mock_app = Mock()
mgr = persistence.PersistenceManager(mock_app)
# datetime with timezone
dt = datetime.datetime(2024, 1, 15, 10, 30, 45, tzinfo=datetime.timezone.utc)
instance = TestModel(id=1, name='test', created_at=dt)
result = mgr.serialize_model(TestModel, instance)
assert '2024-01-15' in result['created_at']
assert isinstance(result['created_at'], str)
def test_serialize_none_datetime(self):
"""Test that None datetime column is serialized as None."""
persistence = get_persistence_module()
mock_app = Mock()
mgr = persistence.PersistenceManager(mock_app)
instance = TestModel(id=1, name='test', created_at=datetime.datetime.now(), updated_at=None)
result = mgr.serialize_model(TestModel, instance)
# None datetime should be None (not converted to isoformat)
assert result['updated_at'] is None
def test_masked_columns_excluded(self):
"""Test that masked columns are excluded from output."""
persistence = get_persistence_module()
mock_app = Mock()
mgr = persistence.PersistenceManager(mock_app)
instance = TestModel(id=1, name='secret_name', created_at=datetime.datetime.now())
result = mgr.serialize_model(TestModel, instance, masked_columns=['name'])
assert 'id' in result
assert 'created_at' in result
assert 'name' not in result
def test_masked_columns_multiple(self):
"""Test that multiple masked columns are excluded."""
persistence = get_persistence_module()
mock_app = Mock()
mgr = persistence.PersistenceManager(mock_app)
instance = TestModel(id=1, name='secret', created_at=datetime.datetime.now())
result = mgr.serialize_model(TestModel, instance, masked_columns=['id', 'name'])
assert 'id' not in result
assert 'name' not in result
assert 'created_at' in result