{
  "description": "Bid request banner field comes with no data to set interstitial size list",
  "mockBidRequest": {
    "id": "some-request-id",
    "site": {
      "page": "test.somepage.com"
    },
    "imp": [
      {
        "id": "my-imp-id",
        "banner": {
          "id": "some-imp-id"
        },
        "instl": 1,
        "ext": {
          "appnexus": {
            "placementId": 12883451
          }
        }
      }
    ],
    "device": {
      "ext": {
        "prebid": {
          "interstitial": {
            "minwidthperc": 60,
            "minheightperc": 60
          }
        }
      }
    },
    "ext": {
      "prebid": {
        "targeting": {
          "pricegranularity": "low"
        },
        "cache": {
          "bids": {}
        }
      }
    }
  },
  "expectedReturnCode": 400,
  "expectedErrorMessage": "Invalid request: Unable to set interstitial size list for Imp id=my-imp-id (No valid sizes between 0x0 and 0x0)\n"
}