{
  "schema": 1,
  "name": "preview-commit-undo-redo",
  "steps": [
    {
      "event": {
        "op": "begin"
      },
      "expect": {
        "editing": true,
        "vertical": [
          10,
          20
        ],
        "history": 2,
        "editCommands": 0,
        "preview": {
          "vertical": [
            10,
            20
          ]
        }
      }
    },
    {
      "event": {
        "op": "set",
        "field": "position",
        "value": "25%"
      },
      "expect": {
        "vertical": [
          10,
          20
        ],
        "preview": {
          "vertical": [
            100,
            20
          ]
        },
        "history": 2,
        "editCommands": 0
      }
    },
    {
      "event": {
        "op": "confirm"
      },
      "expect": {
        "vertical": [
          100,
          20
        ],
        "history": 3,
        "editCommands": 1,
        "editing": false,
        "preview": null
      }
    },
    {
      "event": {
        "op": "undo"
      },
      "expect": {
        "vertical": [
          10,
          20
        ],
        "redo": true
      }
    },
    {
      "event": {
        "op": "redo"
      },
      "expect": {
        "vertical": [
          100,
          20
        ],
        "redo": false
      }
    }
  ]
}