优化测试用例以提高后端模块的测试覆盖率,调整测试断言和异常处理。 Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
优化测试用例以提高后端模块的测试覆盖率,调整测试断言和异常处理。 Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent) Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>