test c

[joyfaker]

[Describe your pull request here. Please read the text below the line and make sure you follow the checklist.]

• The changes are described in detail, both the what and why.
• If applicable, an existing issue is referenced.
• The Code coverage remained at 100%. A test case for every new line of code.
• If applicable, the documentation is updated.
• The source code is amalgamated by running make amalgamate.

Read the Contribution Guidelines for detailed information.

[xytestapp]

AI代码审查完成，发现 1 个位置需要关注。

[xytestapp]

发现 2 个问题：

1. 缺少函数结束括号和冒号，语法错误。
2. 使用可变默认参数作为函数参数，可能导致意外的行为。