{
 "schema_version": 1,
 "generated": "2026-10-20",
 "id": "inkloom-art-inkloom--design-a-concurrent-redemption-test",
 "repo": "Inkloom-art/inkloom",
 "repo_url": "https://github.com/Inkloom-art/inkloom",
 "repo_slug": "inkloom-art-inkloom",
 "title": "Model a race-safe code redemption test on the published one",
 "page_title": "How to model a race-safe code redemption test on the published one with Inkloom",
 "summary": "Use the 25-way simultaneous redemption test as a pattern for testing your own voucher or credit system.",
 "who": "A developer building a promo code, voucher or credit ledger who needs to prove that a code cannot be spent twice under load.",
 "problem": "Single-request tests miss double-spend bugs that only appear when many requests hit the database at the same moment.",
 "outcome": "A test plan with the same three checks: one redemption, one ledger entry and one balance after parallel attempts.",
 "steps": [
  "Clone the public source with `git clone https://github.com/Inkloom-art/inkloom.git`. (inferred, check the README)",
  "Find the test that fires twenty-five simultaneous redemptions of a single code at a real database.",
  "Note its three assertions: exactly one redemption, exactly one ledger entry, and exactly one balance change.",
  "Rebuild the same setup against your own database and code path, without copying the source into your project.",
  "Run the parallel attempts and confirm the three assertions hold. If they fail, the bug is in your transaction boundary."
 ],
 "agent_prompt": "In the Inkloom-art/inkloom repository, locate the test that sends twenty-five simultaneous redemptions of one code. Summarise its three assertions and describe, in plain steps, how a similar test could be written for a different database. Verify by quoting the assertion lines and the file path they come from.",
 "agents": [
  "any"
 ],
 "difficulty": "Advanced",
 "time": "2 hours",
 "basis": "readme",
 "caveat": "The source is all rights reserved and not a distribution, so use it to design your own test rather than copying its code.",
 "category": "Software and DevOps",
 "tags": [
  "Software and DevOps"
 ],
 "lang": "typescript",
 "requirements": [
  "Git and a terminal to clone the public source",
  "A web browser to visit inkloom.art",
  "An Inkloom early access code, only if you want to test account and credit features"
 ],
 "risk": "none",
 "seen_in_the_wild": false,
 "mentioned_publicly": false,
 "risks": [],
 "best": false,
 "score": 0.9,
 "evidence": [],
 "url": "https://dedupedai.com/use-cases/inkloom-art-inkloom/design-a-concurrent-redemption-test/",
 "md": "https://dedupedai.com/use-cases/inkloom-art-inkloom/design-a-concurrent-redemption-test/index.md",
 "disclaimer": "Deduped lists open-source repositories that belong to other people. We do not own, maintain, audit, or vouch for any of them, and a repo appearing here is not an endorsement or a safety check. The use cases, steps, and prompts are written by AI and may be incomplete, outdated, or just wrong. Where a use case is marked \"Seen in the wild\", we link to public posts where someone described something similar, but we have not verified those posts and the use case itself is still our AI's own write-up. Use all of this at your own risk. Only run code, commands, or agents on systems and accounts you are authorized to use, and read the code and every command before you run it, especially anything that touches credentials, files, or the network. Nothing here is professional, security, legal, or financial advice. All trademarks and project names belong to their respective owners, and their use here does not imply affiliation. Content is provided as is, without warranties of any kind. Found a mistake, a safety problem, or something you want removed? Email hello@dedupedai.com and we will look at it promptly.",
 "api": "https://dedupedai.com/api/v1/usecases/inkloom-art-inkloom--design-a-concurrent-redemption-test.json",
 "api_version": "v1"
}