Add regression test for TTL extended on creator state after sell as well as buy

[Chucks1093]

Summary

The Soroban storage TTL extension must fire on both buy and sell, not just buy. A regression test should confirm the TTL is extended after a sell transaction and not only after a buy.

Scope

• Register a creator and record the initial TTL via get_creator_ttl_remaining
• Execute a sell and assert the TTL is extended
• Confirm the TTL after sell matches the configured CREATOR_TTL_LEDGERS constant
• Assert a failed sell (e.g. insufficient balance) does not extend the TTL

Acceptance Criteria

• TTL extended after successful sell
• TTL value after sell matches CREATOR_TTL_LEDGERS
• Failed sell does not extend TTL

ETA: 12 hours

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Coordinate on Telegram

[Kenlachy]

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

I would love to work on issue #502, "Add regression test for TTL extended on creator state after sell as well as buy." I have experience testing Soroban smart contracts in Rust and can implement reliable regression tests covering successful and failed sell scenarios to verify correct TTL behavior.

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[OmniZlatoon]

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[OpensrcLord]

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

Hello @maintainer, I’d like to work on this issue. I have experience handling similar tasks and can start immediately. And I will deliver at the shortest possible time.

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[Escelit]

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

I can work on this please assign me

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[Akanimoh12]

@Akanimoh12 has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hi, I'd love to work on this issue. I'm a full-stack blockchain developer specializing in web apps and Smart Contracts, with experience in Next.js, TypeScript, Tailwind, and blockchain integration's and writing tests. I can handle this confidently, here's my portfolio and key projects:

• https://frontend-nine-mocha.vercel.app/
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Active OSS contributor.

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[drips-wave]

Congratulations, @Akanimoh12! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

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[grantfox-oss]

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Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #502)
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[BWM0223]

PR #505 submitted — TTL regression test. Payment wallets ready: ETH 0xeaCAb48a4bfA0CED0e668c166615927115655594 | SOL C3MD2yfWYebB8FYXpq6ooqzU5GCQB1bDxbDhQf1JfiCW | BTC bc1qtmlgtvg7xgv0zry3ct90elp3y7d3ffdutk4e2f