{
  "mockBidRequest": {
    "id": "test-request-id",
    "imp": [
      {
        "id": "test-imp-id-1",
        "banner": {
          "format": [
            {
              "w": 300,
              "h": 250
            }
          ]
        },
        "ext": {
          "bidder": {}
        }
      }
    ],
    "site": {
      "id": "siteID",
      "publisher": {
        "id": "1234"
      }
    }
  },
  "expectedMakeRequestsErrors": [
    {
      "value": "Impression is missing device OS information",
      "comparison": "literal"
    }
  ]
}