{
  "mockBidRequest":{
    "id":"req1",
    "imp":[
      {
        "id":"imp1",
        "banner":{
          "w":100,
          "h":200
        },
        "ext":{
          "bidder":{

          }
        }
      }
    ]
  },
  "httpCalls":[

  ],
  "expectedBidResponses":[

  ],
  "expectedMakeRequestsErrors":[
    {
      "value":"$.imp.ext.bidder.adunit required",
      "comparison":"literal"
    }
  ]
}