Unit Testing for `Fake Data Generation` app

[lelouvincx]

To do:

• [x] Learning TDD (Test Driven Development)

Unit test for:

• [x] Class PsqlConnector
• Class Table
  • [x] update_attributes

[lelouvincx]

References:

• https://realpython.com/pytest-python-testing/#fixtures-managing-state-and-dependencies
• https://medium.com/@ongxuanhong/mlops-01-data-testing-why-what-and-how-59cd8005637c