[
  {
    "id": "S1_cancel",
    "event": {
      "event_id": "E01",
      "action": "cancel",
      "session_id": "S1",
      "registration_id": "R11",
      "actor": "ORG",
      "organizer_approved": true,
      "now": 0
    },
    "expected_status": "cancelled_draft_created"
  },
  {
    "id": "S1_duplicate",
    "event": {
      "event_id": "E01",
      "action": "cancel",
      "session_id": "S1",
      "registration_id": "R11",
      "actor": "ORG",
      "organizer_approved": true,
      "now": 0
    },
    "expected_status": "duplicate"
  },
  {
    "id": "ambiguous",
    "event": {
      "event_id": "AMB1",
      "action": "cancel",
      "person_id": "P1",
      "text": "取消周末那一场",
      "actor": "ORG",
      "organizer_approved": false,
      "now": 0
    },
    "expected_status": "needs_clarification"
  },
  {
    "id": "S1_confirm",
    "event": {
      "event_id": "CNF1",
      "action": "confirm_offer",
      "offer_id": "OFFER-S1-1",
      "actor": "ORG",
      "now": 1
    },
    "expected_status": "invited"
  },
  {
    "id": "S1_accept",
    "event": {
      "event_id": "ACC1",
      "action": "accept_offer",
      "offer_id": "OFFER-S1-1",
      "actor": "P2",
      "now": 1.5
    },
    "expected_status": "booked"
  },
  {
    "id": "S2_cancel",
    "event": {
      "event_id": "E02",
      "action": "cancel",
      "session_id": "S2",
      "registration_id": "R21",
      "actor": "ORG",
      "organizer_approved": true,
      "now": 3
    },
    "expected_status": "cancelled_draft_created"
  },
  {
    "id": "S2_confirm",
    "event": {
      "event_id": "CNF2",
      "action": "confirm_offer",
      "offer_id": "OFFER-S2-1",
      "actor": "ORG",
      "now": 4
    },
    "expected_status": "invited"
  },
  {
    "id": "S2_expire",
    "event": {
      "event_id": "EXP1",
      "action": "expire",
      "offer_id": "OFFER-S2-1",
      "actor": "CLOCK",
      "now": 20
    },
    "expected_status": "expired_next_draft"
  },
  {
    "id": "S2_late_accept",
    "event": {
      "event_id": "LATE1",
      "action": "accept_offer",
      "offer_id": "OFFER-S2-1",
      "actor": "P2",
      "now": 21
    },
    "expected_status": "rejected_expired"
  },
  {
    "id": "id_conflict",
    "event": {
      "event_id": "E01",
      "action": "cancel",
      "session_id": "S2",
      "registration_id": "R21",
      "actor": "ORG",
      "organizer_approved": true,
      "now": 0
    },
    "expected_status": "id_conflict"
  }
]