test(networking): add end-to-end req/resp protocol message vectors#616
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tcoratger merged 1 commit intoleanEthereum:mainfrom Apr 15, 2026
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Extends the req/resp codec test suite with vectors that use real Lean consensus SSZ message types (Status, BlocksByRootRequest) through the full wire pipeline, and adds Snappy multi-chunk boundary tests. New vectors: - Status request (80-byte fixed-size SSZ through varint + Snappy) - Status SUCCESS response (same payload with response code prefix) - BlocksByRootRequest with two roots (68-byte variable-size SSZ) - BlocksByRootRequest with empty root list (minimal 4-byte SSZ) - Snappy chunk boundary (65536 bytes, exact single-chunk limit) - Multi-chunk payload (65537 bytes, forces 2 Snappy frames) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
New vectors
Why this matters
The original vectors proved the framing layer works for arbitrary data. These prove it works for the actual protocol messages that travel between consensus clients —
Statusfor handshake andBlocksByRootRequestfor block sync.Test plan
uvx tox -e all-checkspassesuv run fill --fork=devnet --clean -n auto -- tests/consensus/devnet/networking/generates all 113 fixtures🤖 Generated with Claude Code