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Hi, @EhsanShahbazii.
The files you've translated are a part of Automated testing with Mocha which is not translated itself.
For the sake of uniformity, the whole article must be translated all at once.
So, please translate the article first, change the title of the PR to "Automated testing with Mocha", and comment "/done" when all these are done.

I will cancel this PR and make a new PR