Add unit tests for the season PoC model and functions

[coxmars]

Start this issue once we have merged the model and functions implemented in the season: #89

• In this issue Implement a Season model and associated functions #89 many tests were implemented so we are going to change the scope for this one.

You can review the current tests and try to add edge cases as a plus.

• Invalid inputs (e.g., non-existent IDs, overlapping dates).
• Handling of empty dynamic arrays like active_players.

However, the idea/scope for this task is to implement the system/flow tests for the functions created.

• Use this PR as an example of what we want to have: Add tests for tournament_system #101
• So, you need to create a new file like season.cairo in systems directory.
• Add the flow according with the functions and logic in season.cairo and after that validate all it's working as expected running sozo build/sozo test.
• When it's done add the proof/output of those commands as an image in your PR.

Follow the Contributions Guidelines and PR guidelines/example etc.
Include clear comments to explain the test logic and why specific scenarios are covered.

If you need help just ask me here in a comment or ping me on Telegram in the group channel for external contributors.

Thanks for your time, please send a comment with your approach/solution, be creative and use a technical explanation and avoid ChatGPT or AI comments.

[PabloVillaplana]

Hi, I'm Juan Pablo Villaplana from Dojo Coding, I'd like to contribute to that ByteBeats issue

I'd like to contribute to the project, to be honest, in order to practice more with Cairo, I can cover several unit tests for those methods as the description says. I think the ticket description is pretty clear with the objectives that we want to achieve

[CollinsC1O]

I’d like to work on this.

[ShantelPeters]

Let me try this one!

[MrRoudyk]

May I try my hand at this?

[coxmars]

Hi, I'm Juan Pablo Villaplana from Dojo Coding, I'd like to contribute to that ByteBeats issue

I'd like to contribute to the project, to be honest, in order to practice more with Cairo, I can cover several unit tests for those methods as the description says. I think the ticket description is pretty clear with the objectives that we want to achieve

Go ahead sir, if you need more guidance or help don't hesitate to contact me 🫡

[JoE11-y]

Can I start working on this?