{
  "artifact": "Circuit diagram parser fixture",
  "chapter": "Circuit Notation as a Programming Language",
  "chapter_url": "https://www.steven-geller.com/playground/quantum/book/16-circuit-notation-as-programming-language/",
  "date_modified": "2026-08-14",
  "dependencies": [],
  "expected_exit_code": 0,
  "expected_stdout": "PASS: 16 circuit parser round-trips 4 operations with 3 dependencies; Bell support=['00', '11'], mutation support=['00', '10']\n",
  "fixture_sha256": "82ddee3604aa71ced3853cbffe6a187008c3887d55980138579fbd2bb31def0a",
  "manifest_test_command": "cd labs && python -m unittest tests.test_simulator -v",
  "pass_condition": "Round-trip test parses/serializes without changing operations, qubit mapping, dependencies, or expected Bell counts.",
  "python_requires": ">=3.11",
  "run_command": "python3 fixture.py",
  "schema_version": "1.1.0",
  "test_method": "Run the isolated fixture; require exit code 0 and exact stdout."
}