{
    "mockBidRequest": {
      "id": "some-request-id",
      "device": {
        "ua": "test-user-agent",
        "ip": "123.123.123.123",
        "language": "en",
        "dnt": 0
      },
      "tmax": 500,
      "user": {
        "buyeruid": "some-user"
      },
      "app": {
        "publisher": {
          "id": "123456789"
        },
        "cat": [
          "IAB22-1"
        ],
        "bundle": "com.app.awesome",
        "name": "Awesome App",
        "domain": "awesomeapp.com",
        "id": "123456789"
      },
      "imp": [
        {
          "id": "some-imp-id",
          "tagid": "some-tag-id",
          "banner": {
            "format":[
              {
                "w": 320,
                "h": 50
              }
            ]
          },
          "ext": {
            "bidder": {
              "placementId": {}
            }
          }
        }
      ]
    },
    "httpCalls": [],
    "expectedBidResponses": [],
    "expectedMakeRequestsErrors": [
        {
            "value": "cannot unmarshal openrtb_ext.ExtImpConnatix.PlacementId: expects \" or n, but found {",
            "comparison": "literal"
        }
    ]
  }