[TEST] Add mutation testing for bountyStore service

[ritik4ever]

Category: testing
Project area: backend/test (config)
Labels: testing, backend

Implementation:

• Add Stryker Mutator configuration scoped to backend/src/services/bountyStore.ts
• Run an initial mutation-testing pass and record the baseline mutation score
• Add or strengthen unit tests to close gaps revealed by surviving mutants
• Wire a mutation-score threshold check into CI (or a scheduled job) going forward

Acceptance Criteria:

• Stryker runs successfully against bountyStore.ts and produces a mutation report
• The mutation score after added tests meets or exceeds the documented baseline threshold

[drips-wave]

Congratulations, @DevALVIN-24! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @DevALVIN-24: 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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[glorious21-coder]

@glorious21-coder has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi, I'd like to work on this issue. I've gone through the description and acceptance criteria and I'm confident I can deliver it. I'll make sure every acceptance criterion is met and submit a clean, tested PR. Please assign it to me.

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[dot-enny]

@dot-enny has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi there, I can take care of this within the hour once assigned.

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[OLAMIGHTY010]

@OLAMIGHTY010 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

I want to work on this project

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[Martins-594]

@Martins-594 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello, I'm requesting an assignment for this issue and will make sure the implementation meets your standards.

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[Peolite001]

@Peolite001 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

i would love to work on this issue

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[AbuJulaybeeb]

@AbuJulaybeeb has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

hi maintainer, i am a Full-Stack and web3 Developer, with 4+ years of experience. I have carefully read and understand the description of this issue, and i would like to take on this issue

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

[chidumebiodoh123-cloud]

@chidumebiodoh123-cloud has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

have experience with mutation testing and backend test automation, and I've reviewed the task. I would like to work on this, please.
Scope: Configure Stryker Mutator for backend/src/services/bountyStore.ts, establish a baseline mutation score, improve tests for surviving mutants, and enforce a mutation-score threshold in CI.
Plan: Add the Stryker configuration, strengthen unit tests based on the mutation report, and integrate mutation score validation into the project's CI workflow.
ETA: 4 hours.

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[Babigdk]

@Babigdk has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi maintainers,

I'd love to work on this issue.

I've reviewed the requirements and understand the expected scope. I'll configure Stryker Mutator specifically for "backend/src/services/bountyStore.ts", establish an initial mutation-testing baseline, strengthen the existing unit tests to eliminate surviving mutants, and integrate a mutation-score threshold into CI (or a scheduled workflow) as appropriate.

I'll ensure the implementation is well-tested, follows the project's existing testing conventions, includes clear documentation where needed, and passes all relevant checks before submitting the PR.

I'd appreciate being assigned to this issue. Thank you!

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

[SpacePanda7077]

@SpacePanda7077 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi maintainer, I’ll love to work on this issue

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