[#442] Add file name sanitization

[vsantele]

Description of changes made

Sanitize filename before saving a generated test.

Why is merge request needed

The filename is created with the class name of the generated test. Even if i's not a good convention, a class name can contain forbidden characters on Windows like " if the name is written like this:

class `MyBadNameWithA""`

Other notes

Closes #442

As far as I see, the only place we construct the full path for a generated test is inside the method saveGeneratedTest and then the program uses the return value of this function as a path for a test. So, it is safe to do the sanitization here. Please correct me if I'm wrong.

What is missing?

Please mention if anything is missing for this merge request, e.g you have decided to move something to the next merge request

• I have checked that I am merging into correct branch

[github-actions]

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