test: full hook test suite with @testing-library/react

[gloriaelishahabu]

Summary

Current tests only cover utilities. Add hook-level tests with mocked SDK calls.

Acceptance criteria

• Mock @stellar/freighter-api in Vitest
• Mock @stellar/stellar-sdk Horizon.Server and SorobanRpc.Server
• Tests for: useFreighter, useStellarAccount, useStellarBalance, useTransaction
• CI passes on every push

Notes

Use @testing-library/react + @testing-library/react-hooks.

[Wisdom2788]

@Wisdom2788 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hey,

I’m a full stack Software Engineer with experience across frontend, backend, and some blockchain related work. I’m genuinely interested in contributing to real problems like this.

My main stack is React, TypeScript, and Next.js on the frontend, where I focus on clean component structure, responsiveness, and performance. On the backend, I work with Node.js, Java, and Python, building APIs, handling application logic, and working with data in a structured and secure way.

A few things I’ve built:
Portfolio:
https://my-portfolio-two-nu-80q0sjswsj.vercel.app/

I’m comfortable jumping into existing codebases, understanding patterns, and following established conventions. I care about writing code that is clear, maintainable, and easy to review.

Happy to take this on if it’s a good fit. Thanks for your time.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Wisdom2788 to this issue.

[drips-wave]

Congratulations, @Wisdom2788! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @Wisdom2788: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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🌊 Happy Wave 🌊

[raymondidahor-bot]

@raymondidahor-bot has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

I would love to work on this project. I promise to deliver within a short time.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @raymondidahor-bot to this issue.

[drips-wave]

Congratulations, @raymondidahor-bot! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

🧑‍💻 @raymondidahor-bot: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊