test: add tests for core pipeline and clustering algorithms#32
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HahaBill
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Jul 20, 2026
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Very large PR to review but given that it's only unit tests then lgtm
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This PR adds Jest unit testing infrastructure to the project and introduces unit tests for the core pipeline, clustering algorithms, and utility functions.
All test suites are placed inside a mirrored test/ directory.
fixes #4
Changes:
Infrastructure: Added jest, ts-jest, and ts-node. Configured jest.config.ts, enabled Jest globals in ESLint config, and added the test runner step to the GitHub Actions CI workflow.
Test Coverage:
Vector calculations (vectorAggregator, metrics)
Clustering algorithms (kmeans, kmedoids)
Name and keyword extraction (tfidf, tagExtraction, clusterNaming)
Utilities and configs (titleFilter, pipelineConfig)
Verification:
Verified that all 137 unit tests pass successfully.
Confirmed that npm run ci completes locally without linting, formatting, or build errors.