Add massive scaling tests for BackgroundRefresh service#3339
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JhaSourav07 merged 14 commits intoJun 3, 2026
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…alidation & Schema Constraints Stability (Variation 10) The StudentProfile model exposes the IEducation, IExperience, and IStudentProfile interfaces alongside its mongoose schema, but there was no compiler-level test that pinned those declarations down. Add isolated expectTypeOf assertions for the public surface and pair them with runtime validateSync checks so a future refactor that changes a field type, drops a required validator, or relaxes the graduationYear constraint gets caught at PR time.
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🚨 Hey @atul-upadhyay-7, the CI Pipeline is failing on this PR and it has been marked as Please fix the issues before this can be reviewed. Here's how: 1. Run checks locally before pushing: npm run format:check # Check Prettier formatting
npm run lint # Run ESLint
npm run typecheck # TypeScript type check
npm run test # Run unit tests (Vitest)
npm run build # Verify production build passes2. Auto-fix common issues: npm run format # Auto-fix formatting with Prettier
npm run lint -- --fix # Auto-fix lint errors where possible3. Check the full failure log here: Once you push a fix and the CI passes, the |
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Pull request overview
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Adds new Vitest test suites to stress-test GitHub background refresh job handling at extreme scales and to validate StudentProfile TypeScript types + Mongoose schema constraints.
Changes:
- Introduces a large “massive scaling” stress/performance test suite for
BackgroundRefreshbehavior (staleness, deduping, job lifecycle). - Adds a TypeScript compiler/type assertion + Mongoose validation test suite for
StudentProfile.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 6 comments.
| File | Description |
|---|---|
| services/github/background-refresh.massive-scaling.test.ts | Adds high-volume stress, lifecycle, and timing-based checks for BackgroundRefresh. |
| models/StudentProfile.type-compiler.test.ts | Adds type-level assertions and schema validation checks for StudentProfile. |
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Creates 33 test cases covering massive data sets and extreme high bounds for the BackgroundRefresh service. Tests include high-volume isStale processing (100k calls), extreme temporal boundary handling, concurrent trigger floods with 10k-50k unique usernames, memory stability under 50k active job tracking, dedup verification with casing and whitespace variations, and performance bounds for all major execution paths.
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Description
Closes #2914
The
BackgroundRefreshsingleton inservices/github/background-refresh.tshad no test coverage for massive data sets or extreme high bounds. High-volume contributor data, enormous activity logs, and rapid concurrent refresh triggers could distort internal state tracking or cause performance degradation without any test guardrails.The
activeJobsSet-based dedup andisStaletimestamp comparison were never validated under load. ThetriggerRefreshmethod's duplicate-prevention logic, theisStalethreshold at exactly 600000ms, and the case/whitespace normalization inisJobActiveall operated without coverage for boundary conditions or high-volume stress patterns.New file
services/github/background-refresh.massive-scaling.test.tswith 33 test cases covering 100k rapidisStalecalls, extreme temporal boundaries, 50k concurrent triggers, case-insensitive dedup at scale, and async job cleanup.Pillar
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N/A — Tests only, no visual changes.
Checklist before requesting a review:
CONTRIBUTING.mdfile.npx vitest run services/github/background-refresh).npm run formatandnpm run lintlocally and resolved all errors.README.mdif I added a new theme or URL parameter.