Document Unit Testing for Dojo Models and Systems

[iGEORGE17]

Pull Request Overview

📝 Summary

Provide a brief overview of what this PR accomplishes.

Related Issues

• Closes 📝 [DOCS]: Document Unit Testing for Dojo Models and Systems #124

Documentation

File: client/pages/getting-started/basics/testing/unit_testing.md

• 📝 New markdown page created at client/pages/getting-started/basics/testing/unit_testing.md
• 📌 Clear explanation of unit testing principles in Dojo context
• 🪄 Practical test examples for Player model functionality
• 📉 Testing patterns for model validation, system interactions, and error handling
• 👌🏻 Best practices for test organization and Cairo testing framework usage
• 🏮 Examples of mocking world state and testing complex game logic

Test Coverage

• Unit Tests

Evidence

[coxmars]

LGTM