{
  "mutation": [
    {"id": "active_before_expiry", "active": true, "now": 99, "expires_at": 100, "expected": true},
    {"id": "expiry_boundary", "active": true, "now": 100, "expires_at": 100, "expected": false},
    {"id": "revocation", "active": false, "now": 99, "expires_at": 100, "expected": false}
  ],
  "migration": [
    {"id": "own_tenant", "tenant": "alpha", "label": "revised", "expected_status": 200, "expected_rows": [[1, "alpha", "revised"]]},
    {"id": "other_tenant", "tenant": "beta", "label": "revised", "expected_status": 403, "expected_rows": [[1, "alpha", "quarterly"]]}
  ]
}