---
phase: 07-integration-validation
plan: 01
subsystem: testing
tags:
- ranx
- pytest
- fixtures
- mrr
- validation
dependency_graph:
requires:
- 05-02 (pipeline with dependency resolution)
provides:
- validation infrastructure
- seeded_pipeline fixture
- ranx Qrels integration
affects:
- 07-02 (MRR evaluation tests)
- 07-03 (baseline comparison tests)
tech_stack:
added:
- ranx>=0.3.20 (IR evaluation metrics)
patterns:
- deterministic RNG seeding for reproducible tests
- JSON fixtures for test data isolation
file_tracking:
key_files:
created:
- tests/validation/__init__.py
- tests/validation/conftest.py
- tests/validation/fixtures/seed_data.json
- tests/validation/fixtures/validation_pairs.json
modified:
- pyproject.toml
decisions:
- id: D-07-01-01
decision: Use ranx library for MRR evaluation
rationale: Standard IR evaluation library with Qrels/Run format
- id: D-07-01-02
decision: Deterministic embeddings via np.random.default_rng(42)
rationale: Ensures reproducible test results across runs
- id: D-07-01-03
decision: 12 validation pairs across 5 categories
rationale: Covers authentication, development, content, infrastructure, multi-component
metrics:
duration: ~10min
completed: 2026-02-03
---
# Phase 7 Plan 01: Validation Infrastructure Summary
**One-liner:** ranx-based validation infrastructure with 12 query-component pairs and seeded pipeline fixture using deterministic embeddings.
## What Was Built
### Validation Test Infrastructure
Created `tests/validation/` directory with pytest fixtures for MRR evaluation testing:
1. **validation_pairs fixture** - Loads 12 query-component pairs from JSON
2. **validation_qrels fixture** - Converts pairs to ranx Qrels format
3. **seed_data fixture** - Loads 15 mock components with 10 edges
4. **seeded_pipeline fixture** - Creates RetrievalPipeline with deterministic data
### Fixture Files
**seed_data.json** (15 components, 10 edges):
- Component types: skill (9), agent (4), setting (1), command (1)
- Edge types: DEPENDS_ON (6), ENHANCES (2), BUNDLES_WITH (2)
**validation_pairs.json** (12 pairs, 5 categories):
- authentication: 3 pairs (auth_01, auth_02, auth_03)
- development: 4 pairs (dev_01, dev_02, dev_03, dev_04)
- content: 1 pair (content_01)
- infrastructure: 2 pairs (infra_01, infra_02)
- multi-component: 2 pairs (multi_01, multi_02)
### Key Design Decisions
1. **Binary relevance scoring** - All expected components have score=1 (ranx MRR uses binary judgments)
2. **Deterministic RNG** - `np.random.default_rng(42)` ensures identical embeddings across test runs
3. **Standalone fixtures** - `seed_graph_store` and `seed_vector_store` available for unit tests
## Commits
| Hash | Type | Description |
|------|------|-------------|
| 33b75f2 | chore | Add ranx dependency and validation test directory |
| fbbfc7e | feat | Add seed data and validation pairs fixtures |
| f47355d | feat | Add conftest.py with seeded_pipeline fixture |
## Verification Results
- [x] ranx installed and importable
- [x] tests/validation/fixtures/ contains seed_data.json and validation_pairs.json
- [x] validation_pairs.json has 12 pairs across 5 categories
- [x] seed_data.json has 15 components matching all 13 expected IDs
- [x] conftest.py fixtures are discoverable by pytest
- [x] seeded_pipeline fixture creates working pipeline with mock data
## Deviations from Plan
None - plan executed exactly as written.
## Next Phase Readiness
Plan 07-02 (MRR Evaluation Tests) can proceed immediately. The seeded_pipeline and validation_qrels fixtures provide everything needed for MRR metric testing.
