d1e75ddded
Move issues (01–29) and PRD from .scratch/distributed-inference-network/ into docs/issues/ and docs/. Update ralph_progress.py DEFAULT_PRD path and rewrite docs/agents/issue-tracker.md to reflect the new layout. The distributed_inference_network.egg-info/docs/ mirror is a build artifact already covered by *.egg-info/ in .gitignore — not committed. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
27 lines
1.1 KiB
Markdown
27 lines
1.1 KiB
Markdown
# US-028 — Routing correctness tests: three-node, overlap, and throughput scenarios
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Status: done
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Priority: Medium
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Stage: Implemented
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## Context
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Route selection logic (`_select_route`) is the core of the inference network. Without
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locked-down tests, routing regressions are silent. This story adds a comprehensive
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scenario suite that locks in the routing contract.
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## Test scenarios
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1. **No-overlap three nodes**: greedy picks in layer-start order (A→C→B for ranges 0–7, 8–15, 16–23)
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Note: the algorithm picks by earliest uncovered layer, not by node label — so if C.shard_start < B.shard_start, C comes first.
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2. **Overlapping shards**: correct resolution without double-computing layers
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3. **Throughput tiebreak**: faster node wins when shard_end is equal
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4. **Gap detection**: partial coverage returns a 503 error with description
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## Acceptance criteria
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- [ ] 7 routing tests covering the above scenarios
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- [ ] Tests use in-process tracker (no mocking)
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- [ ] `_make_node` helper for concise test setup
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- [ ] All tests pass; `python -m pytest` passes
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