D-030 Layer 3: E2E test spawns the Rust server binary, connects via
LocalBridge, sends a batched MoveNorth input, and verifies the player
moved to (16.5, 15.5). Also adds batch encoding roundtrip tests,
framed batch test, and Player entity fixture decode test. 43/43 pass.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Critical fixes from Hoshe review:
1. Race condition: defer TCP connect to _process() with retry logic
(MAX_CONNECT_RETRIES=20, 100ms interval) so server has time to bind.
2. Buffer corruption: disconnect on oversized message instead of
clearing valid buffered data (_corrupt flag, fail-safe).
3. Silent input drop: send_input() returns Error so callers can detect
encode/validation failures.
Warnings addressed:
- ServerProcess validates server_path exists before spawning
- SIGKILL and health check TODOs documented for future work
- Diagonal keybindings documented as intentional deferral
- send_message uses single put_data() call (no partial write risk)
- Static frame helpers documented as D-030 Layer 2 test-only
New tests (36 total, up from 33):
- Partial read scenario (chunked TCP delivery)
- Multi-message sequential decode (exercises buffer corruption fix)
- send_input error return on invalid action
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
12 new tests covering framing roundtrips, cross-layer Protocol+framing
integration, and diagonal wire mapping. 4 new diagonal movement
fixtures generated from Rust for D-030 Layer 1 cross-language
verification. 33/33 tests pass.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
jpmschweitzerandClaude Opus 4.6