Add unittest

[Jonatan-Chaverri]

Related to

Related to #8 by @SAMAD101

Description

Add unittest for the main APIs.

Technical details

Adding pytest using FastAPI test client and pytest-mock library.

Tests

You can run the test by running
pytest tests

Screenshots

Checklist

• [x ] My pull request has a descriptive title (not a vague title like Update index.md).
• My pull request targets the default branch of the repository (main or master).
• My commit messages follow best practices.
• [] My code follows the established code style of the repository.
• I added or updated tests for the changes I made (if applicable).
• I added or updated documentation (if applicable).
• I tried running the project locally and verified that there are no
  visible errors.

[Jonatan-Chaverri]

I can also create a github workflow in order to check unittest passing before merging PRs. Let me know.

[SAMAD101]

I can also create a github workflow in order to check unittest passing before merging PRs. Let me know.

LGTM
That would be great if you can do that!

[Jonatan-Chaverri]

@SAMAD101 I added the workflow, however I think you need to approve it before it can run. You can check the configured actions settings for the repo and enable external contributors to run workflows.

[SAMAD101]

Thank you very much for contributing @Jonatan-Chaverri