Understand how the challenge correction is works

Hello I’m a newcomer in the freecodecamp world. I tested the platform and I really liked it. but there’s a thing I’m very curious about. it’s how to fix the code challenges. to get this answer I even downloaded the whole codebase and launched the platform locally on my computer. if anyone can help me understand how it works?

What challenge are you trying to “fix”?

@RandellDawson thanks for the response. I’m not trying to fix something. i just wante to understand how it works.

Is there something specific you are not understanding regarding the code? I am not exactly sure what you are asking. Are you asking how the testing mechanism validates your code should pass the challenge tests?

@RandellDawson exactly i would to understand how the testing mechanism validates my code shoud pass the challenge tests?