diff --git a/adapters/brightroll/brightroll.go b/adapters/brightroll/brightroll.go
index 0d218ef5fa6..65758ac1a77 100644
--- a/adapters/brightroll/brightroll.go
+++ b/adapters/brightroll/brightroll.go
@@ -52,6 +52,7 @@ func (a *BrightrollAdapter) MakeRequests(request *openrtb.BidRequest) ([]*adapte
 		return nil, errs
 	}
 
+	request.AT = 1 //Defaulting to first price auction for all prebid requests
 	reqJSON, err := json.Marshal(request)
 	if err != nil {
 		errs = append(errs, err)
diff --git a/adapters/brightroll/brightrolltest/exemplary/banner-native-audio.json b/adapters/brightroll/brightrolltest/exemplary/banner-native-audio.json
new file mode 100644
index 00000000000..fe10320c70f
--- /dev/null
+++ b/adapters/brightroll/brightrolltest/exemplary/banner-native-audio.json
@@ -0,0 +1,156 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            },
+            {
+              "w": 300,
+              "h": 600
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "publisher": "cafemom"
+          }
+        }
+      },
+      {
+        "id": "unsupported-native-imp",
+        "native": {
+          "ver": "1.1",
+          "request": "{\"ver\":\"1.1\",\"context\":1,\"contextsubtype\":11,\"assets\":[{\"id\":1,\"required\":1,\"title\":{\"len\":500}},{\"id\":2,\"required\":1,\"img\":{\"type\":3,\"wmin\":1,\"hmin\":1}},{\"id\":3,\"required\":0,\"data\":{\"type\":1,\"len\":200}},{\"id\":4,\"required\":0,\"data\":{\"type\":2,\"len\":15000}},{\"id\":5,\"required\":0,\"data\":{\"type\":6,\"len\":40}},{\"id\":6,\"required\":0,\"data\":{\"type\":500}}]}"
+        },
+        "ext": {
+          "bidder": {
+            "publisher": "cafemom"
+          }
+        }
+      },
+      {
+        "id": "unsupported-audio-imp",
+        "audio": {
+          "mimes": [
+            "video/mp4"
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "publisher": "cafemom"
+          }
+        }
+      }
+    ]
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://east-bid.ybp.yahoo.com/bid/appnexuspbs?publisher=cafemom",
+        "body": {
+          "id": "test-request-id",
+          "at":1,
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "format": [
+                  {
+                    "w": 300,
+                    "h": 250
+                  },
+                  {
+                    "w": 300,
+                    "h": 600
+                  }
+                ],
+                "w": 300,
+                "h": 250
+              },
+              "ext": {
+                "bidder": {
+                  "publisher": "cafemom"
+                }
+              }
+            },
+            {
+              "id": "unsupported-native-imp",
+              "native": {
+                "ver": "1.1",
+                "request": "{\"ver\":\"1.1\",\"context\":1,\"contextsubtype\":11,\"assets\":[{\"id\":1,\"required\":1,\"title\":{\"len\":500}},{\"id\":2,\"required\":1,\"img\":{\"type\":3,\"wmin\":1,\"hmin\":1}},{\"id\":3,\"required\":0,\"data\":{\"type\":1,\"len\":200}},{\"id\":4,\"required\":0,\"data\":{\"type\":2,\"len\":15000}},{\"id\":5,\"required\":0,\"data\":{\"type\":6,\"len\":40}},{\"id\":6,\"required\":0,\"data\":{\"type\":500}}]}"
+              },
+              "ext": {
+                "bidder": {
+                  "publisher": "cafemom"
+                }
+              }
+            },
+            {
+              "id": "unsupported-audio-imp",
+              "audio": {
+                "mimes": [
+                  "video/mp4"
+                ]
+              },
+              "ext": {
+                "bidder": {
+                  "publisher": "cafemom"
+                }
+              }
+            }
+          ]
+        }
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "seatbid": [
+            {
+              "seat": "958",
+              "bid": [{
+                "id": "7706636740145184841",
+                "impid": "test-imp-id",
+                "price": 0.500000,
+                "adid": "29681110",
+                "adm": "some-test-ad",
+                "adomain": ["yahoo.com"],
+                "cid": "958",
+                "crid": "29681110",
+                "h": 250,
+                "w": 300
+              }]
+            }
+          ],
+          "bidid": "5778926625248726496",
+          "cur": "USD"
+        }
+      }
+    }
+  ],
+
+  "expectedBids": [
+    {
+      "bid": {
+        "id": "7706636740145184841",
+        "impid": "test-imp-id",
+        "price": 0.5,
+        "adm": "some-test-ad",
+        "adid": "29681110",
+        "adomain": ["yahoo.com"],
+        "cid": "958",
+        "crid": "29681110",
+        "w": 300,
+        "h": 250
+      },
+      "type": "banner"
+    }
+  ]
+
+}
diff --git a/adapters/brightroll/brightrolltest/exemplary/banner-video-native.json b/adapters/brightroll/brightrolltest/exemplary/banner-video-native.json
new file mode 100644
index 00000000000..ede5c4c1ff1
--- /dev/null
+++ b/adapters/brightroll/brightrolltest/exemplary/banner-video-native.json
@@ -0,0 +1,158 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 300,
+              "h": 250
+            },
+            {
+              "w": 300,
+              "h": 600
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "publisher": "cafemom"
+          }
+        }
+      },
+      {
+        "id": "unsupported-native-imp",
+        "native": {
+          "ver": "1.1",
+          "request": "{\"ver\":\"1.1\",\"context\":1,\"contextsubtype\":11,\"assets\":[{\"id\":1,\"required\":1,\"title\":{\"len\":500}},{\"id\":2,\"required\":1,\"img\":{\"type\":3,\"wmin\":1,\"hmin\":1}},{\"id\":3,\"required\":0,\"data\":{\"type\":1,\"len\":200}},{\"id\":4,\"required\":0,\"data\":{\"type\":2,\"len\":15000}},{\"id\":5,\"required\":0,\"data\":{\"type\":6,\"len\":40}},{\"id\":6,\"required\":0,\"data\":{\"type\":500}}]}"
+        },
+        "ext": {
+          "bidder": {
+            "publisher": "cafemom"
+          }
+        }
+      },
+      {
+        "id": "test-imp-video-id",
+        "video": {
+          "mimes": ["video/mp4"],
+          "protocols": [2, 5],
+          "w": 1024,
+          "h": 576
+        },
+        "ext": {
+          "bidder": {
+            "publisher": "cafemom"
+          }
+        }
+      }
+    ]
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://east-bid.ybp.yahoo.com/bid/appnexuspbs?publisher=cafemom",
+        "body": {
+          "id": "test-request-id",
+          "at":1,
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "format": [
+                  {
+                    "w": 300,
+                    "h": 250
+                  },
+                  {
+                    "w": 300,
+                    "h": 600
+                  }
+                ],
+                "w": 300,
+                "h": 250
+              },
+              "ext": {
+                "bidder": {
+                  "publisher": "cafemom"
+                }
+              }
+            },
+            {
+              "id": "unsupported-native-imp",
+              "native": {
+                "ver": "1.1",
+                "request": "{\"ver\":\"1.1\",\"context\":1,\"contextsubtype\":11,\"assets\":[{\"id\":1,\"required\":1,\"title\":{\"len\":500}},{\"id\":2,\"required\":1,\"img\":{\"type\":3,\"wmin\":1,\"hmin\":1}},{\"id\":3,\"required\":0,\"data\":{\"type\":1,\"len\":200}},{\"id\":4,\"required\":0,\"data\":{\"type\":2,\"len\":15000}},{\"id\":5,\"required\":0,\"data\":{\"type\":6,\"len\":40}},{\"id\":6,\"required\":0,\"data\":{\"type\":500}}]}"
+              },
+              "ext": {
+                "bidder": {
+                  "publisher": "cafemom"
+                }
+              }
+            },
+            {
+              "id": "test-imp-video-id",
+              "video": {
+                "mimes": ["video/mp4"],
+                "protocols": [2, 5],
+                "w": 1024,
+                "h": 576
+              },
+              "ext": {
+                "bidder": {
+                  "publisher": "cafemom"
+                }
+              }
+            }
+          ]
+        }
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "seatbid": [
+            {
+              "seat": "958",
+              "bid": [{
+                "id": "7706636740145184841",
+                "impid": "test-imp-video-id",
+                "price": 0.500000,
+                "adid": "29681110",
+                "adm": "some-test-ad",
+                "adomain": ["yahoo.com"],
+                "cid": "958",
+                "crid": "29681110",
+                "h": 576,
+                "w": 1024
+              }]
+            }
+          ],
+          "bidid": "5778926625248726496",
+          "cur": "USD"
+        }
+      }
+    }
+  ],
+
+  "expectedBids": [
+    {
+      "bid": {
+        "id": "7706636740145184841",
+        "impid": "test-imp-video-id",
+        "price": 0.5,
+        "adm": "some-test-ad",
+        "adid": "29681110",
+        "adomain": ["yahoo.com"],
+        "cid": "958",
+        "crid": "29681110",
+        "w": 1024,
+        "h": 576
+      },
+      "type": "video"
+    }
+  ]
+
+}
diff --git a/adapters/brightroll/brightrolltest/exemplary/banner-video.json b/adapters/brightroll/brightrolltest/exemplary/banner-video.json
index 9e13663a57e..aab6ad6a9bb 100644
--- a/adapters/brightroll/brightrolltest/exemplary/banner-video.json
+++ b/adapters/brightroll/brightrolltest/exemplary/banner-video.json
@@ -44,6 +44,7 @@
         "uri": "http://east-bid.ybp.yahoo.com/bid/appnexuspbs?publisher=cafemom",
         "body": {
           "id": "test-request-id",
+          "at":1,
           "imp": [
             {
               "id": "test-imp-id",
diff --git a/adapters/brightroll/brightrolltest/exemplary/simple-banner.json b/adapters/brightroll/brightrolltest/exemplary/simple-banner.json
index 1156739b055..118b6793dc0 100644
--- a/adapters/brightroll/brightrolltest/exemplary/simple-banner.json
+++ b/adapters/brightroll/brightrolltest/exemplary/simple-banner.json
@@ -31,6 +31,7 @@
         "uri": "http://east-bid.ybp.yahoo.com/bid/appnexuspbs?publisher=cafemom",
         "body": {
           "id": "test-request-id",
+          "at":1,
           "imp": [
             {
               "id": "test-imp-id",
diff --git a/adapters/brightroll/brightrolltest/exemplary/simple-video.json b/adapters/brightroll/brightrolltest/exemplary/simple-video.json
index c8e8ef06252..719d32fbf9a 100644
--- a/adapters/brightroll/brightrolltest/exemplary/simple-video.json
+++ b/adapters/brightroll/brightrolltest/exemplary/simple-video.json
@@ -25,6 +25,7 @@
         "uri": "http://east-bid.ybp.yahoo.com/bid/appnexuspbs?publisher=cafemom",
         "body": {
           "id": "test-request-id",
+          "at":1,
           "imp": [
             {
               "id": "test-imp-id",
diff --git a/adapters/brightroll/brightrolltest/exemplary/valid-extension.json b/adapters/brightroll/brightrolltest/exemplary/valid-extension.json
index ed60209cfab..068b3c68e49 100644
--- a/adapters/brightroll/brightrolltest/exemplary/valid-extension.json
+++ b/adapters/brightroll/brightrolltest/exemplary/valid-extension.json
@@ -25,6 +25,7 @@
         "uri": "http://east-bid.ybp.yahoo.com/bid/appnexuspbs?publisher=cafemom",
         "body": {
           "id": "test-request-id",
+          "at":1,
           "imp": [
             {
               "id": "test-imp-id",
diff --git a/adapters/brightroll/brightrolltest/exemplary/video-and-audio.json b/adapters/brightroll/brightrolltest/exemplary/video-and-audio.json
new file mode 100644
index 00000000000..88c9892454a
--- /dev/null
+++ b/adapters/brightroll/brightrolltest/exemplary/video-and-audio.json
@@ -0,0 +1,110 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-video-id",
+        "video": {
+          "mimes": ["video/mp4"],
+          "protocols": [2, 5],
+          "w": 1024,
+          "h": 576
+        },
+        "ext": {
+          "bidder": {
+            "publisher": "cafemom"
+          }
+        }
+      },
+      {
+        "id": "unsupported-audio-imp",
+        "audio": {
+          "mimes": [
+            "video/mp4"
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "publisher": "cafemom"
+          }
+        }
+      }
+    ]
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://east-bid.ybp.yahoo.com/bid/appnexuspbs?publisher=cafemom",
+        "body": {
+          "id": "test-request-id",
+          "at":1,
+          "imp": [
+            {
+              "id": "test-imp-video-id",
+              "video": {
+                "mimes": ["video/mp4"],
+                "protocols": [2, 5],
+                "w": 1024,
+                "h": 576
+              },
+              "ext": {
+                "bidder": {
+                  "publisher": "cafemom"
+                }
+              }
+            },
+            {
+              "id": "unsupported-audio-imp",
+              "audio": {
+                "mimes": [
+                  "video/mp4"
+                ]
+              },
+              "ext": {
+                "bidder": {
+                  "publisher": "cafemom"
+                }
+              }
+            }
+          ]
+        }
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "cur": "USD",
+          "seatbid": [
+            {
+              "seat": "brightroll",
+              "bid": [{
+                "id": "8ee514f1-b2b8-4abb-89fd-084437d1e800",
+                "impid": "test-imp-video-id",
+                "price": 0.500000,
+                "adm": "some-test-ad",
+                "crid": "crid_10",
+                "w": 1024,
+                "h": 576
+              }]
+            }
+          ]
+        }
+      }
+    }
+  ],
+
+  "expectedBids": [
+    {
+      "bid": {
+        "id": "8ee514f1-b2b8-4abb-89fd-084437d1e800",
+        "impid": "test-imp-video-id",
+        "price": 0.5,
+        "adm": "some-test-ad",
+        "crid": "crid_10",
+        "w": 1024,
+        "h": 576
+      },
+      "type": "video"
+    }
+  ]
+}