RAG Processing - Manual Verification Checklist

This document provides a comprehensive manual verification checklist for the RAG (Retrieval-Augmented Generation) processing feature in NeuroLink.

Pre-Verification Setup

Environment Requirements

Node.js 18+ installed
pnpm package manager installed
Project built successfully (pnpm run build)
Dependencies installed (pnpm install)

Optional API Keys (for advanced tests)

OPENAI_API_KEY - For LLM-based reranking
COHERE_API_KEY - For Cohere reranker tests
ANTHROPIC_API_KEY - For Claude-based operations

1. Chunker Verification

1.1 ChunkerFactory Tests

Test	Command/Action	Expected Result	Status
Singleton instance	`ChunkerFactory.getInstance() === ChunkerFactory.getInstance()`	Returns same instance	[ ]
Available strategies	`getAvailableStrategies()`	Returns array with 9+ strategies	[ ]
Create character chunker	`createChunker('character')`	Returns chunker with `strategy: 'character'`	[ ]
Create recursive chunker	`createChunker('recursive')`	Returns chunker with `strategy: 'recursive'`	[ ]
Create sentence chunker	`createChunker('sentence')`	Returns chunker with `strategy: 'sentence'`	[ ]
Create token chunker	`createChunker('token')`	Returns chunker with `strategy: 'token'`	[ ]
Create markdown chunker	`createChunker('markdown')`	Returns chunker with `strategy: 'markdown'`	[ ]
Create HTML chunker	`createChunker('html')`	Returns chunker with `strategy: 'html'`	[ ]
Create JSON chunker	`createChunker('json')`	Returns chunker with `strategy: 'json'`	[ ]
Create LaTeX chunker	`createChunker('latex')`	Returns chunker with `strategy: 'latex'`	[ ]
Create semantic-markdown chunker	`createChunker('semantic-markdown')`	Returns chunker with `strategy: 'semantic-markdown'`	[ ]

1.2 Alias Resolution Tests

Alias	Expected Strategy	Status
`char`	`character`	[ ]
`md`	`markdown`	[ ]
`tok`	`token`	[ ]
`sent`	`sentence`	[ ]
`tex`	`latex`	[ ]

1.3 ChunkerRegistry Tests

Test	Command/Action	Expected Result	Status
Singleton instance	`ChunkerRegistry.getInstance() === ChunkerRegistry.getInstance()`	Returns same instance	[ ]
Get available chunkers	`getAvailableChunkers()`	Returns array with 9+ chunkers	[ ]
Has valid chunker	`chunkerRegistry.hasChunker('recursive')`	Returns `true`	[ ]
Has invalid chunker	`chunkerRegistry.hasChunker('invalid')`	Returns `false`	[ ]
Get by use case	`chunkerRegistry.getChunkersByUseCase('documentation')`	Includes 'markdown'	[ ]

1.4 Chunking Execution Tests

For each chunker, verify the following with sample text:

const chunks = await chunker.chunk(sampleText, { maxSize: 200 });

Chunker	Chunks Generated	Valid Structure	Metadata Present	Status
character	>0 chunks	[ ]	[ ]	[ ]
recursive	>0 chunks	[ ]	[ ]	[ ]
sentence	>0 chunks	[ ]	[ ]	[ ]
token	>0 chunks	[ ]	[ ]	[ ]
markdown	>0 chunks	[ ]	[ ]	[ ]
html	>0 chunks	[ ]	[ ]	[ ]
json	>0 chunks	[ ]	[ ]	[ ]
latex	>0 chunks	[ ]	[ ]	[ ]
semantic-markdown	>0 chunks	[ ]	[ ]	[ ]

Chunk structure validation:

// Each chunk should have:
{
  id: string,           // Non-empty UUID
  text: string,         // Non-empty content
  metadata: {
    documentId: string, // Parent document ID
    chunkIndex: number, // 0-based index
    startOffset: number,
    endOffset: number
  }
}

2. Reranker Verification

2.1 RerankerFactory Tests

Test	Command/Action	Expected Result	Status
Singleton instance	`RerankerFactory.getInstance() === RerankerFactory.getInstance()`	Returns same instance	[ ]
Available types	`getAvailableRerankerTypes()`	Returns array with 5 types	[ ]
Create simple reranker	`createReranker('simple')`	Returns reranker with `type: 'simple'`	[ ]
Get metadata	`getRerankerMetadata('simple')`	Returns description, defaultConfig, useCases	[ ]
Model-free list	`rerankerFactory.getModelFreeRerankers()`	Includes 'simple'	[ ]

2.2 Reranker Alias Resolution Tests

Alias	Expected Type	Status
`fast`	`simple`	[ ]
`basic`	`simple`	[ ]
`semantic`	`llm` (requires model)	[ ]

2.3 RerankerRegistry Tests

Test	Command/Action	Expected Result	Status
Singleton instance	`RerankerRegistry.getInstance() === RerankerRegistry.getInstance()`	Returns same instance	[ ]
Available rerankers	`getAvailableRerankers()`	Returns array with 4+ rerankers	[ ]
Has valid reranker	`rerankerRegistry.hasReranker('simple')`	Returns `true`	[ ]
Has invalid reranker	`rerankerRegistry.hasReranker('invalid')`	Returns `false`	[ ]
Get by use case	`rerankerRegistry.getRerankersByUseCase('fast')`	Includes 'simple'	[ ]

2.4 Reranking Execution Tests

const results = [
  { id: "doc1", text: "Machine learning...", score: 0.85 },
  { id: "doc2", text: "Neural networks...", score: 0.92 },
  { id: "doc3", text: "Data science...", score: 0.78 },
];

const reranked = await reranker.rerank(results, "query", { topK: 3 });

Test	Expected Result	Status
Simple rerank returns topK results	`reranked.length === 3`	[ ]
Results sorted by score descending	`reranked[0].score >= reranked[1].score`	[ ]
All results have id, text, score	Each has required fields	[ ]

3. Hybrid Search Verification

3.1 BM25 Index Tests

Test	Command/Action	Expected Result	Status
Create index	`new InMemoryBM25Index()`	Index created	[ ]
Add documents	`await bm25Index.addDocuments(docs)`	Documents indexed	[ ]
Search returns results	`await bm25Index.search('query', 3)`	Returns up to 3 results	[ ]
Results have scores	Each result has `score` field	[ ]
Results match query	Top results contain query terms	[ ]

3.2 Fusion Method Tests

Reciprocal Rank Fusion (RRF)

const vectorRanking = [
  { id: "doc1", rank: 1 },
  { id: "doc2", rank: 2 },
];
const bm25Ranking = [
  { id: "doc2", rank: 1 },
  { id: "doc1", rank: 2 },
];
const fused = reciprocalRankFusion([vectorRanking, bm25Ranking], 60);

Test	Expected Result	Status
Fused scores exist	`fused.size > 0`	[ ]
Docs in both lists have higher scores	doc1, doc2 scores > doc3 score	[ ]

Linear Combination

const vectorScores = new Map([
  ["doc1", 0.9],
  ["doc2", 0.7],
]);
const bm25Scores = new Map([
  ["doc1", 0.6],
  ["doc2", 0.8],
]);
const combined = linearCombination(vectorScores, bm25Scores, 0.5);

Test	Expected Result	Status
Combined scores exist	`combined.size > 0`	[ ]
Scores are weighted average	doc1: ~0.75, doc2: ~0.75	[ ]

4. Integration Tests

4.1 End-to-End Chunking Pipeline

// 1. Create chunker
const chunker = await createChunker("markdown", { maxSize: 300 });

// 2. Chunk document
const chunks = await chunker.chunk(markdownDocument, { maxSize: 300 });

// 3. Validate

Test	Expected Result	Status
Chunks generated	`chunks.length > 0`	[ ]
All chunks valid	All have id, text, metadata	[ ]
Chunk sizes reasonable	Average < maxSize	[ ]
No empty chunks	All `chunk.text.length > 0`	[ ]

4.2 Multiple Chunker Comparison

Chunker	Same Input	Produces Chunks	Different Results	Status
character	✓	[ ]	[ ]	[ ]
sentence	✓	[ ]	[ ]	[ ]
recursive	✓	[ ]	[ ]	[ ]

5. Error Handling Tests

Test	Action	Expected Result	Status
Invalid chunker strategy	`createChunker('invalid-xyz')`	Throws "Unknown chunking strategy"	[ ]
Invalid reranker type	`createReranker('invalid-xyz')`	Throws "Unknown reranker type"	[ ]
Empty input to chunker	`chunker.chunk('')`	Returns empty array or handles gracefully	[ ]
Null input to chunker	`chunker.chunk(null)`	Throws error or handles gracefully	[ ]

6. Performance Verification

6.1 Chunking Performance

Test with documents of varying sizes:

Document Size	Chunker	Time (ms)	Memory	Status
1 KB	recursive	< 100	< 10 MB	[ ]
10 KB	recursive	< 500	< 50 MB	[ ]
100 KB	recursive	< 2000	< 200 MB	[ ]

6.2 Reranking Performance

Results Count	Reranker	Time (ms)	Status
10	simple	< 10	[ ]
100	simple	< 50	[ ]
1000	simple	< 500	[ ]

7. Test Suite Execution

Run Continuous Test Suite

npx tsx test/continuous-test-suite-rag.ts

Test Suite	Status
ChunkerFactory	[ ] PASS
ChunkerRegistry	[ ] PASS
All 9 Chunkers	[ ] PASS
RerankerFactory	[ ] PASS
RerankerRegistry	[ ] PASS
Simple Reranking	[ ] PASS
Hybrid Search	[ ] PASS
Chunker Integration	[ ] PASS
Error Handling	[ ] PASS

Run Unit Tests

pnpm test test/rag/

Test File	Status
ChunkerFactory.test.ts	[ ] PASS
ChunkerRegistry.test.ts	[ ] PASS
integration/rag.integration.test.ts	[ ] PASS
resilience/RetryHandler.test.ts	[ ] PASS
resilience/CircuitBreaker.test.ts	[ ] PASS

8. Documentation Verification

Document	Exists	Accurate	Complete	Status
TESTING.md	[ ]	[ ]	[ ]	[ ]
CONFIGURATION.md	[ ]	[ ]	[ ]	[ ]
VERIFICATION.md	[ ]	[ ]	[ ]	[ ]
CLI-COVERAGE.md	[ ]	[ ]	[ ]	[ ]

Sign-off

Role	Name	Date	Signature
Developer
QA
Tech Lead

Notes

Add any observations, issues, or recommendations here:

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Pre-Verification Setup​

Environment Requirements​

Optional API Keys (for advanced tests)​

1. Chunker Verification​

1.1 ChunkerFactory Tests​

1.2 Alias Resolution Tests​

1.3 ChunkerRegistry Tests​

1.4 Chunking Execution Tests​

2. Reranker Verification​

2.1 RerankerFactory Tests​

2.2 Reranker Alias Resolution Tests​

2.3 RerankerRegistry Tests​

2.4 Reranking Execution Tests​

3. Hybrid Search Verification​

3.1 BM25 Index Tests​

3.2 Fusion Method Tests​

Reciprocal Rank Fusion (RRF)​

Linear Combination​

4. Integration Tests​

4.1 End-to-End Chunking Pipeline​

4.2 Multiple Chunker Comparison​

5. Error Handling Tests​

6. Performance Verification​

6.1 Chunking Performance​

6.2 Reranking Performance​

7. Test Suite Execution​

Run Continuous Test Suite​

Run Unit Tests​

8. Documentation Verification​

Sign-off​

Notes​