add anonymize tests

[romaissaMe]

@achab can you check pls I wanna also mention smth that test_anonymize_email() doesn't pass the test since in .com the last character "m" is contained in the anonymized file just like this xd " m"

[achab]

• __pycache__ folder shouldn't be added to the repository. please add it to .gitignore
• you also need to remove files like __pycache__/x from git, so you should run for each git rm --cached __pycache__/x

[romaissaMe]

@achab can you check it !