memo_validator: test max-length memo boundary

[CemAyyildiz]

Goal

Test memo at Stellar text-memo max length (28 chars) pass/fail per crate rules.

Context

contracts/memo_validator/src/lib.rs.

Acceptance criteria

• One boundary test with comment citing the limit
• Crate tests pass

Out of scope

• Backend memo.ts changes

Conflict rule

Only edit memo_validator test module.

[aristotle224]

@aristotle224 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I’d like to work on this issue because it addresses an important area of the project and presents a great opportunity to make a meaningful contribution. I’m particularly interested in delivering a solution that is reliable, maintainable, and aligned with the project’s existing architecture and development standards.

I have experience working across software development, including backend and frontend development, APIs, databases, testing, DevOps, and blockchain-based applications. I’m comfortable understanding existing codebases, identifying the root cause of issues, implementing clean and scalable solutions, and writing thorough tests to prevent regressions.

My approach would be to first understand the existing implementation and project conventions, then develop the solution in a focused and incremental way. I’ll ensure the changes are well-tested, documented where necessary, and do not introduce unnecessary complexity or break existing functionality. I’m also committed to clear communication, responding to review feedback, and delivering a polished contribution that provides real value to the project.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @aristotle224 to this issue.

[GOE001]

@GOE001 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

I would like to work m this

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[Blessed-Femi]

@Blessed-Femi has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

let me work on this

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[Gozirimdev]

@Gozirimdev has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi Maintainer, I’ve reviewed this issue and understand what needs to be done. I’m confident I can handle it. Please assign it to me. Thank you!

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[Sagethepeak]

@Sagethepeak has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hello, I would like to work on this issue. Please assign it to me.

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[OG-wura]

@OG-wura has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

can I please work on this

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[Demilade10]

@Demilade10 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi I can fix this

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[Aj-Kayvee]

@Aj-Kayvee has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi, please I would love to resolve this issue

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[drips-wave]

Congratulations, @GOE001! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on August 31, 2026.

🧑‍💻 @GOE001: 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 🌊

[janekamso]

@janekamso has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi, I would like to work on this issue

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[doncross03]

@doncross03 has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Dear Team ,
Kindly assign this task to me ....am an expertise wen it come to delivery on time .....with my experience I will deliver promptly

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[CollinsKRO]

@CollinsKRO has applied to work on this issue as part of the Stellar Wave Program's 8th wave.

Hi, I can fix this kindly assign.

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