[Feature Request] Add more test cases

[tai271828]

Description

Following this thread #21 , we have had test case of grub.cfg, and it will be nice that we could have more test cases for different type of coverage. They are at least:

• pxelinux configuration files
• output number and file names of the generated /tmpxxx

Possible Solution

Continue using pytest framework.

Additional context

#21

Related Issue