Make the tests independent

[curquiza]

Currently, some tests depend on the previous ones, like in this file: https://github.com/meilisearch/meilisearch-python/blob/master/meilisearch/tests/index/test_index.py

We should re-write the test suite to make the tests independent from the others. This would make our test suite more readable, trustable, and maintainable.

[kamyar]

I would like to give this issue a shot, is that ok? @curquiza

[curquiza]

Hello @kamyar! It would be awesome!

[kamyar]

@curquiza opened a PR, pinging here also in case you don't receive notifications already. :)
#178

[curquiza]

Hello @kamyar! I've seen your PR, thanks for this huge work! @eskombro and I will review it as soon as possible 🙂

[kamyar]

Great! 🎉
Thank you, looking forward to your comments. :)