schemeta/docs/fixtures.md

Fixture Pack

Schemeta uses deterministic fixture circuits for compile/layout/readability QA.

Core fixtures

1. examples/esp32-audio.json
   • Baseline audio pipeline (MCU -> DAC -> amp).
2. examples/dense-analog.json
   • High-density analog topology used for overlap/crossing stress.
3. examples/i2c-sensor-hub.json
   • Shared bus topology with pull-ups and interrupt branches.
4. examples/power-tree.json
   • Multi-domain power-distribution with digital branch nets.

Usage

1. Manual import in UI:
   • Import JSON then select fixture file.
2. API:
   • POST /compile or POST /analyze with fixture payload.
3. Automated regression:
   • npm run test:ui uses dense-analog for layout budget checks.

Notes

1. Fixtures should stay deterministic (stable ordering and explicit naming).
2. Avoid avoidable warnings in default/demo fixtures.
3. Add a fixture whenever a routing/layout bug is fixed to prevent regressions.