diff --git a/modules/quantumdexBidAdapter.js b/modules/quantumdexBidAdapter.js
new file mode 100644
index 00000000000..c2a130f789d
--- /dev/null
+++ b/modules/quantumdexBidAdapter.js
@@ -0,0 +1,219 @@
+import * as utils from '../src/utils.js';
+import { registerBidder } from '../src/adapters/bidderFactory.js';
+const BIDDER_CODE = 'quantumdex';
+const ENDPOINT = 'https://useast.quantumdex.io/auction/adapter';
+const USER_SYNC_URL = 'https://useast.quantumdex.io/usersync/adapter';
+var bySlotTargetKey = {};
+var bySlotSizesCount = {}
+
+export const spec = {
+  code: BIDDER_CODE,
+  supportedMediaTypes: ['banner', 'video'],
+  aliases: ['qde'],
+  isBidRequestValid: function (bid) {
+    if (!bid.params) {
+      return false;
+    }
+    if (!bid.params.siteId) {
+      return false;
+    }
+    if (!utils.deepAccess(bid, 'mediaTypes.banner') && !utils.deepAccess(bid, 'mediaTypes.video')) {
+      return false;
+    }
+    if (utils.deepAccess(bid, 'mediaTypes.banner')) { // Quantumdex does not support multi type bids, favor banner over video
+      if (!utils.deepAccess(bid, 'mediaTypes.banner.sizes')) {
+        // sizes at the banner is required.
+        return false;
+      }
+    } else if (utils.deepAccess(bid, 'mediaTypes.video')) {
+      if (!utils.deepAccess(bid, 'mediaTypes.video.playerSize')) {
+        // playerSize is required for instream adUnits.
+        return false;
+      }
+    }
+    return true;
+  },
+
+  buildRequests: function (validBidRequests, bidderRequest) {
+    var bids = JSON.parse(JSON.stringify(validBidRequests))
+    const payload = {};
+
+    bids.forEach(bidReq => {
+      var targetKey = 0;
+      if (bySlotTargetKey[bidReq.adUnitCode] != undefined) {
+        targetKey = bySlotTargetKey[bidReq.adUnitCode];
+      } else {
+        var biggestSize = _getBiggestSize(bidReq.sizes);
+        if (biggestSize) {
+          if (bySlotSizesCount[biggestSize] != undefined) {
+            bySlotSizesCount[biggestSize]++
+            targetKey = bySlotSizesCount[biggestSize];
+          } else {
+            bySlotSizesCount[biggestSize] = 0;
+            targetKey = 0
+          }
+        }
+      }
+      bySlotTargetKey[bidReq.adUnitCode] = targetKey;
+      bidReq.targetKey = targetKey;
+    });
+
+    payload.device = {};
+    payload.device.ua = navigator.userAgent;
+    payload.device.height = window.top.innerHeight;
+    payload.device.width = window.top.innerWidth;
+    payload.device.dnt = _getDoNotTrack();
+    payload.device.language = navigator.language;
+
+    payload.site = {};
+    payload.site.id = bids[0].params.siteId;
+    payload.site.page = _extractTopWindowUrlFromBidderRequest(bidderRequest);
+    payload.site.referrer = _extractTopWindowReferrerFromBidderRequest(bidderRequest);
+    payload.site.hostname = window.top.location.hostname;
+
+    // Apply GDPR parameters to request.
+    payload.gdpr = {};
+    if (bidderRequest && bidderRequest.gdprConsent) {
+      payload.gdpr.gdprApplies = bidderRequest.gdprConsent.gdprApplies ? 'true' : 'false';
+      if (bidderRequest.gdprConsent.consentString) {
+        payload.gdpr.consentString = bidderRequest.gdprConsent.consentString;
+      }
+    }
+    // Apply schain.
+    if (bids[0].schain) {
+      payload.schain = JSON.stringify(bids[0].schain)
+    }
+    // Apply us_privacy.
+    if (bidderRequest && bidderRequest.uspConsent) {
+      payload.us_privacy = bidderRequest.uspConsent;
+    }
+
+    payload.bids = bids;
+
+    return {
+      method: 'POST',
+      url: ENDPOINT,
+      data: payload,
+      withCredentials: true,
+      bidderRequests: bids
+    };
+  },
+  interpretResponse: function (serverResponse, bidRequest) {
+    const serverBody = serverResponse.body;
+    const serverBids = serverBody.bids;
+    // check overall response
+    if (!serverBody || typeof serverBody !== 'object') {
+      return [];
+    }
+    if (!serverBids || typeof serverBids !== 'object') {
+      return [];
+    }
+
+    const bidResponses = [];
+    serverBids.forEach(bid => {
+      const bidResponse = {
+        requestId: bid.requestId,
+        cpm: bid.cpm,
+        width: bid.width,
+        height: bid.height,
+        creativeId: bid.creativeId,
+        dealId: bid.dealId,
+        currency: bid.currency,
+        netRevenue: bid.netRevenue,
+        ttl: bid.ttl,
+        mediaType: bid.mediaType
+      };
+      if (bid.vastXml) {
+        bidResponse.vastXml = utils.replaceAuctionPrice(bid.vastXml, bid.cpm);
+      } else {
+        bidResponse.ad = utils.replaceAuctionPrice(bid.ad, bid.cpm);
+      }
+      bidResponses.push(bidResponse);
+    });
+    return bidResponses;
+  },
+  getUserSyncs: function (syncOptions, serverResponses) {
+    const syncs = [];
+    try {
+      if (syncOptions.iframeEnabled) {
+        syncs.push({
+          type: 'iframe',
+          url: USER_SYNC_URL
+        });
+      }
+      if (syncOptions.pixelEnabled && serverResponses.length > 0) {
+        serverResponses[0].body.pixel.forEach(px => {
+          syncs.push({
+            type: px.type,
+            url: px.url
+          });
+        });
+      }
+    } catch (e) { }
+    return syncs;
+  }
+};
+
+function _getBiggestSize(sizes) {
+  if (sizes.length <= 0) return false
+  var acreage = 0;
+  var index = 0;
+  for (var i = 0; i < sizes.length; i++) {
+    var currentAcreage = sizes[i][0] * sizes[i][1];
+    if (currentAcreage >= acreage) {
+      acreage = currentAcreage;
+      index = i;
+    }
+  }
+  return sizes[index][0] + 'x' + sizes[index][1];
+}
+
+function _getDoNotTrack() {
+  if (window.top.doNotTrack || navigator.doNotTrack || navigator.msDoNotTrack) {
+    if (window.top.doNotTrack == '1' || navigator.doNotTrack == 'yes' || navigator.doNotTrack == '1' || navigator.msDoNotTrack == '1') {
+      return 1;
+    } else {
+      return 0;
+    }
+  } else {
+    return 0;
+  }
+}
+
+/**
+ * Extracts the page url from given bid request or use the (top) window location as fallback
+ *
+ * @param {*} bidderRequest
+ * @returns {string}
+ */
+function _extractTopWindowUrlFromBidderRequest(bidderRequest) {
+  if (bidderRequest && utils.deepAccess(bidderRequest, 'refererInfo.canonicalUrl')) {
+    return bidderRequest.refererInfo.canonicalUrl;
+  }
+
+  try {
+    return window.top.location.href;
+  } catch (e) {
+    return window.location.href;
+  }
+}
+
+/**
+ * Extracts the referrer from given bid request or use the (top) document referrer as fallback
+ *
+ * @param {*} bidderRequest
+ * @returns {string}
+ */
+function _extractTopWindowReferrerFromBidderRequest(bidderRequest) {
+  if (bidderRequest && utils.deepAccess(bidderRequest, 'refererInfo.referer')) {
+    return bidderRequest.refererInfo.referer;
+  }
+
+  try {
+    return window.top.document.referrer;
+  } catch (e) {
+    return window.document.referrer;
+  }
+}
+
+registerBidder(spec);
diff --git a/modules/quantumdexBidAdapter.md b/modules/quantumdexBidAdapter.md
new file mode 100644
index 00000000000..8c35ea8cb05
--- /dev/null
+++ b/modules/quantumdexBidAdapter.md
@@ -0,0 +1,56 @@
+# Overview
+
+```
+Module Name: Quantum Digital Exchange Bidder Adapter
+Module Type: Bidder Adapter
+Maintainer: ken@quantumdex.io
+```
+
+# Description
+
+Connects to Quantum Digital Exchange for bids.
+Quantumdex bid adapter supports Banner and Video (Instream and Outstream) ads.
+
+# Test Parameters
+```
+var adUnits = [
+  {
+    code: 'test-div',
+    mediaTypes: {
+      banner: {
+        sizes: [[300, 250], [300,600]]
+      }
+    },
+    bids: [
+      {
+          bidder: 'quantumdex',
+          params: {
+              siteId: 'quantumdex-site-id', // siteId provided by Quantumdex
+          }
+      }
+    ]
+  }
+];
+```
+
+# Video Test Parameters
+```
+var videoAdUnit = {
+  code: 'test-div',
+  sizes: [[640, 480]],
+  mediaTypes: {
+    video: {
+      playerSize: [[640, 480]],
+      context: 'instream'
+    },
+  },
+  bids: [
+    {
+      bidder: 'quantumdex',
+      params: {
+        siteId: 'quantumdex-site-id', // siteId provided by Quantumdex
+      }
+    }
+  ]
+};
+```
\ No newline at end of file
diff --git a/test/spec/modules/quantumdexBidAdapter_spec.js b/test/spec/modules/quantumdexBidAdapter_spec.js
new file mode 100644
index 00000000000..ef8791cca57
--- /dev/null
+++ b/test/spec/modules/quantumdexBidAdapter_spec.js
@@ -0,0 +1,604 @@
+import { expect } from 'chai'
+import { spec } from 'modules/quantumdexBidAdapter.js'
+import { newBidder } from 'src/adapters/bidderFactory.js'
+import { userSync } from '../../../src/userSync.js';
+
+describe('QuantumdexBidAdapter', function () {
+  const adapter = newBidder(spec)
+
+  describe('.code', function () {
+    it('should return a bidder code of quantumdex', function () {
+      expect(spec.code).to.equal('quantumdex')
+    })
+  })
+
+  describe('inherited functions', function () {
+    it('should exist and be a function', function () {
+      expect(adapter.callBids).to.exist.and.to.be.a('function')
+    })
+  })
+
+  describe('.isBidRequestValid', function () {
+    it('should return false if there are no params', () => {
+      const bid = {
+        'bidder': 'quantumdex',
+        'adUnitCode': 'adunit-code',
+        'mediaTypes': {
+          banner: {
+            sizes: [[300, 250], [300, 600]]
+          }
+        },
+        'bidId': '30b31c1838de1e',
+        'bidderRequestId': '22edbae2733bf6',
+        'auctionId': '1d1a030790a475',
+      };
+      expect(spec.isBidRequestValid(bid)).to.equal(false);
+    });
+
+    it('should return false if there is no siteId param', () => {
+      const bid = {
+        'bidder': 'quantumdex',
+        'adUnitCode': 'adunit-code',
+        params: {
+          site_id: '1a2b3c4d5e6f1a2b3c4d',
+        },
+        'mediaTypes': {
+          banner: {
+            sizes: [[300, 250], [300, 600]]
+          }
+        },
+        'bidId': '30b31c1838de1e',
+        'bidderRequestId': '22edbae2733bf6',
+        'auctionId': '1d1a030790a475',
+      };
+      expect(spec.isBidRequestValid(bid)).to.equal(false);
+    });
+
+    it('should return false if there is no mediaTypes', () => {
+      const bid = {
+        'bidder': 'quantumdex',
+        'adUnitCode': 'adunit-code',
+        params: {
+          siteId: '1a2b3c4d5e6f1a2b3c4d'
+        },
+        'mediaTypes': {
+        },
+        'bidId': '30b31c1838de1e',
+        'bidderRequestId': '22edbae2733bf6',
+        'auctionId': '1d1a030790a475',
+      };
+      expect(spec.isBidRequestValid(bid)).to.equal(false);
+    });
+
+    it('should return true if the bid is valid', () => {
+      const bid = {
+        'bidder': 'quantumdex',
+        'adUnitCode': 'adunit-code',
+        params: {
+          siteId: '1a2b3c4d5e6f1a2b3c4d'
+        },
+        'mediaTypes': {
+          banner: {
+            sizes: [[300, 250], [300, 600]]
+          }
+        },
+        'bidId': '30b31c1838de1e',
+        'bidderRequestId': '22edbae2733bf6',
+        'auctionId': '1d1a030790a475',
+      };
+      expect(spec.isBidRequestValid(bid)).to.equal(true);
+    });
+
+    describe('banner', () => {
+      it('should return false if there are no banner sizes', () => {
+        const bid = {
+          'bidder': 'quantumdex',
+          'adUnitCode': 'adunit-code',
+          params: {
+            siteId: '1a2b3c4d5e6f1a2b3c4d'
+          },
+          'mediaTypes': {
+            banner: {
+
+            }
+          },
+          'bidId': '30b31c1838de1e',
+          'bidderRequestId': '22edbae2733bf6',
+          'auctionId': '1d1a030790a475',
+        };
+        expect(spec.isBidRequestValid(bid)).to.equal(false);
+      });
+
+      it('should return true if there is banner sizes', () => {
+        const bid = {
+          'bidder': 'quantumdex',
+          'adUnitCode': 'adunit-code',
+          params: {
+            siteId: '1a2b3c4d5e6f1a2b3c4d'
+          },
+          'mediaTypes': {
+            banner: {
+              sizes: [[300, 250], [300, 600]]
+            }
+          },
+          'bidId': '30b31c1838de1e',
+          'bidderRequestId': '22edbae2733bf6',
+          'auctionId': '1d1a030790a475',
+        };
+        expect(spec.isBidRequestValid(bid)).to.equal(true);
+      });
+    });
+
+    describe('video', () => {
+      it('should return false if there is no playerSize defined in the video mediaType', () => {
+        const bid = {
+          'bidder': 'quantumdex',
+          'adUnitCode': 'adunit-code',
+          params: {
+            siteId: '1a2b3c4d5e6f1a2b3c4d',
+            sizes: [[300, 250], [300, 600]]
+          },
+          'mediaTypes': {
+            video: {
+              context: 'instream'
+            }
+          },
+          'bidId': '30b31c1838de1e',
+          'bidderRequestId': '22edbae2733bf6',
+          'auctionId': '1d1a030790a475',
+        };
+        expect(spec.isBidRequestValid(bid)).to.equal(false);
+      });
+
+      it('should return true if there is playerSize defined on the video mediaType', () => {
+        const bid = {
+          'bidder': 'quantumdex',
+          'adUnitCode': 'adunit-code',
+          params: {
+            siteId: '1a2b3c4d5e6f1a2b3c4d',
+          },
+          'mediaTypes': {
+            video: {
+              context: 'instream',
+              playerSize: [[640, 480]]
+            }
+          },
+          'bidId': '30b31c1838de1e',
+          'bidderRequestId': '22edbae2733bf6',
+          'auctionId': '1d1a030790a475',
+        };
+        expect(spec.isBidRequestValid(bid)).to.equal(true);
+      });
+    });
+  });
+
+  describe('.buildRequests', function () {
+    beforeEach(function () {
+      sinon.stub(userSync, 'canBidderRegisterSync');
+    });
+    afterEach(function () {
+      userSync.canBidderRegisterSync.restore();
+    });
+    let bidRequest = [{
+      'schain': {
+        'ver': '1.0',
+        'complete': 1,
+        'nodes': [
+          {
+            'asi': 'indirectseller.com',
+            'sid': '00001',
+            'hp': 1
+          },
+          {
+            'asi': 'indirectseller-2.com',
+            'sid': '00002',
+            'hp': 0
+          },
+        ]
+      },
+      'bidder': 'quantumdex',
+      'params': {
+        'siteId': '1a2b3c4d5e6f1a2b3c4d',
+      },
+      'adUnitCode': 'adunit-code-1',
+      'sizes': [[300, 250], [300, 600]],
+      'targetKey': 0,
+      'bidId': '30b31c1838de1f',
+    },
+    {
+      'bidder': 'quantumdex',
+      'params': {
+        'ad_unit': '/7780971/sparks_prebid_LB',
+        'sizes': [[300, 250], [300, 600]],
+        'referrer': 'overrides_top_window_location'
+      },
+      'adUnitCode': 'adunit-code-2',
+      'sizes': [[120, 600], [300, 600], [160, 600]],
+      'targetKey': 1,
+      'bidId': '30b31c1838de1e',
+    }];
+
+    let bidderRequests = {
+      'gdprConsent': {
+        'consentString': 'BOJ/P2HOJ/P2HABABMAAAAAZ+A==',
+        'vendorData': {},
+        'gdprApplies': true
+      },
+      'refererInfo': {
+        'numIframes': 0,
+        'reachedTop': true,
+        'referer': 'https://example.com',
+        'stack': ['https://example.com']
+      },
+      uspConsent: 'someCCPAString'
+    };
+
+    it('should return a properly formatted request', function () {
+      const bidRequests = spec.buildRequests(bidRequest, bidderRequests)
+      expect(bidRequests.url).to.equal('https://useast.quantumdex.io/auction/adapter')
+      expect(bidRequests.method).to.equal('POST')
+      expect(bidRequests.bidderRequests).to.eql(bidRequest);
+    })
+
+    it('should return a properly formatted request with GDPR applies set to true', function () {
+      const bidRequests = spec.buildRequests(bidRequest, bidderRequests)
+      expect(bidRequests.url).to.equal('https://useast.quantumdex.io/auction/adapter')
+      expect(bidRequests.method).to.equal('POST')
+      expect(bidRequests.data.gdpr.gdprApplies).to.equal('true')
+      expect(bidRequests.data.gdpr.consentString).to.equal('BOJ/P2HOJ/P2HABABMAAAAAZ+A==')
+    })
+
+    it('should return a properly formatted request with GDPR applies set to false', function () {
+      bidderRequests.gdprConsent.gdprApplies = false;
+      const bidRequests = spec.buildRequests(bidRequest, bidderRequests)
+      expect(bidRequests.url).to.equal('https://useast.quantumdex.io/auction/adapter')
+      expect(bidRequests.method).to.equal('POST')
+      expect(bidRequests.data.gdpr.gdprApplies).to.equal('false')
+      expect(bidRequests.data.gdpr.consentString).to.equal('BOJ/P2HOJ/P2HABABMAAAAAZ+A==')
+    })
+    it('should return a properly formatted request with GDPR applies set to false with no consent_string param', function () {
+      let bidderRequests = {
+        'gdprConsent': {
+          'consentString': undefined,
+          'vendorData': {},
+          'gdprApplies': false
+        },
+        'refererInfo': {
+          'numIframes': 0,
+          'reachedTop': true,
+          'referer': 'https://example.com',
+          'stack': ['https://example.com']
+        }
+      };
+      const bidRequests = spec.buildRequests(bidRequest, bidderRequests)
+      expect(bidRequests.url).to.equal('https://useast.quantumdex.io/auction/adapter')
+      expect(bidRequests.method).to.equal('POST')
+      expect(bidRequests.data.gdpr.gdprApplies).to.equal('false')
+      expect(bidRequests.data.gdpr).to.not.include.keys('consentString')
+    })
+    it('should return a properly formatted request with GDPR applies set to true with no consentString param', function () {
+      let bidderRequests = {
+        'gdprConsent': {
+          'consentString': undefined,
+          'vendorData': {},
+          'gdprApplies': true
+        },
+        'refererInfo': {
+          'numIframes': 0,
+          'reachedTop': true,
+          'referer': 'https://example.com',
+          'stack': ['https://example.com']
+        }
+      };
+      const bidRequests = spec.buildRequests(bidRequest, bidderRequests)
+      expect(bidRequests.url).to.equal('https://useast.quantumdex.io/auction/adapter')
+      expect(bidRequests.method).to.equal('POST')
+      expect(bidRequests.data.gdpr.gdprApplies).to.equal('true')
+      expect(bidRequests.data.gdpr).to.not.include.keys('consentString')
+    })
+    it('should return a properly formatted request with schain defined', function () {
+      const bidRequests = spec.buildRequests(bidRequest, bidderRequests);
+      expect(JSON.parse(bidRequests.data.schain)).to.deep.equal(bidRequest[0].schain)
+    });
+    it('should return a properly formatted request with us_privacy included', function () {
+      const bidRequests = spec.buildRequests(bidRequest, bidderRequests);
+      expect(bidRequests.data.us_privacy).to.equal('someCCPAString');
+    });
+  });
+
+  describe('.interpretResponse', function () {
+    const bidRequests = {
+      'method': 'POST',
+      'url': 'https://useast.quantumdex.io/auction/adapter',
+      'withCredentials': true,
+      'data': {
+        'device': {
+          'ua': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36',
+          'height': 937,
+          'width': 1920,
+          'dnt': 0,
+          'language': 'vi'
+        },
+        'site': {
+          'id': '343',
+          'page': 'https://www.example.com/page',
+          'referrer': '',
+          'hostname': 'www.example.com'
+        }
+      },
+      'bidderRequests': [
+        {
+          'bidder': 'quantumdex',
+          'params': {
+            'siteId': '343'
+          },
+          'crumbs': {
+            'pubcid': 'c2b2ba08-9954-4850-8ee5-2bf4a2b35eff'
+          },
+          'mediaTypes': {
+            'banner': {
+              'sizes': [[160, 600], [120, 600]]
+            }
+          },
+          'adUnitCode': 'vi_3431035_1',
+          'transactionId': '994d8404-4a28-4c43-98d8-a38dbb061910',
+          'sizes': [[160, 600], [120, 600]],
+          'bidId': '3000aa31c41a29c21',
+          'bidderRequestId': '299926b3d3628cdd7',
+          'auctionId': '22445943-a0aa-4c63-a413-4deb64fcff1c',
+          'src': 'client',
+          'bidRequestsCount': 41,
+          'bidderRequestsCount': 41,
+          'bidderWinsCount': 0,
+          'schain': {
+            'ver': '1.0',
+            'complete': 1,
+            'nodes': [
+              {
+                'asi': 'freegames66.com',
+                'sid': '343',
+                'hp': 1
+              }
+            ]
+          }
+        },
+        {
+          'bidder': 'quantumdex',
+          'params': {
+            'siteId': '343'
+          },
+          'crumbs': {
+            'pubcid': 'c2b2ba08-9954-4850-8ee5-2bf4a2b35eff'
+          },
+          'mediaTypes': {
+            'banner': {
+              'sizes': [[300, 250], [250, 250], [200, 200], [180, 150]]
+            }
+          },
+          'adUnitCode': 'vi_3431033_1',
+          'transactionId': '800fe87e-bfec-43a5-ace0-c4e2373ff4b5',
+          'sizes': [[300, 250], [250, 250], [200, 200], [180, 150]],
+          'bidId': '30024615be22ef66a',
+          'bidderRequestId': '299926b3d3628cdd7',
+          'auctionId': '22445943-a0aa-4c63-a413-4deb64fcff1c',
+          'src': 'client',
+          'bidRequestsCount': 41,
+          'bidderRequestsCount': 41,
+          'bidderWinsCount': 0,
+          'schain': {
+            'ver': '1.0',
+            'complete': 1,
+            'nodes': [
+              {
+                'asi': 'freegames66.com',
+                'sid': '343',
+                'hp': 1
+              }
+            ]
+          }
+        },
+        {
+          'bidder': 'quantumdex',
+          'params': {
+            'siteId': '343'
+          },
+          'crumbs': {
+            'pubcid': 'c2b2ba08-9954-4850-8ee5-2bf4a2b35eff'
+          },
+          'mediaTypes': {
+            'video': {
+              'playerSize': [[640, 480]],
+              'context': 'instream',
+              'mimes': [
+                'video/mp4',
+                'video/x-flv',
+                'video/x-ms-wmv',
+                'application/vnd.apple.mpegurl',
+                'application/x-mpegurl',
+                'video/3gpp',
+                'video/mpeg',
+                'video/ogg',
+                'video/quicktime',
+                'video/webm',
+                'video/x-m4v',
+                'video/ms-asf',
+                'video/x-msvideo'
+              ],
+              'protocols': [1, 2, 3, 4, 5, 6],
+              'playbackmethod': [6],
+              'maxduration': 120,
+              'linearity': 1,
+              'api': [2]
+            }
+          },
+          'adUnitCode': 'vi_3431909',
+          'transactionId': '33d83d87-43cc-499b-aabe-5c22eb6acfbb',
+          'sizes': [[640, 480]],
+          'bidId': '1854b40107d6745c',
+          'bidderRequestId': '1840763b6bda185d',
+          'auctionId': 'df495de0-5d42-471f-a501-73bcd7254b80',
+          'src': 'client',
+          'bidRequestsCount': 1,
+          'bidderRequestsCount': 1,
+          'bidderWinsCount': 0,
+          'schain': {
+            'ver': '1.0',
+            'complete': 1,
+            'nodes': [
+              {
+                'asi': 'freegames66.com',
+                'sid': '343',
+                'hp': 1
+              }
+            ]
+          }
+        }
+      ]
+    };
+
+    let serverResponse = {
+      'body': {
+        'bids': [
+          {
+            'requestId': '3000aa31c41a29c21',
+            'cpm': 1.07,
+            'width': 160,
+            'height': 600,
+            'ad': `<div>Quantumdex AD</div>`,
+            'ttl': 500,
+            'creativeId': '1234abcd',
+            'netRevenue': true,
+            'currency': 'USD',
+            'dealId': 'quantumdex',
+            'mediaType': 'banner'
+          },
+          {
+            'requestId': '30024615be22ef66a',
+            'cpm': 1,
+            'width': 300,
+            'height': 250,
+            'ad': `<div>Quantumdex AD</div>`,
+            'ttl': 500,
+            'creativeId': '1234abcd',
+            'netRevenue': true,
+            'currency': 'USD',
+            'dealId': 'quantumdex',
+            'mediaType': 'banner'
+          },
+          {
+            'requestId': '1854b40107d6745c',
+            'cpm': 1.25,
+            'width': 300,
+            'height': 250,
+            'vastXml': '<VAST><Ad id="20001"><InLine><AdSystem version="4.0">quantumdex</AdSystem></InLine></Ad></VAST>',
+            'ttl': 500,
+            'creativeId': '30292e432662bd5f86d90774b944b038',
+            'netRevenue': true,
+            'currency': 'USD',
+            'dealId': 'quantumdex',
+            'mediaType': 'video'
+          }
+        ],
+        'pixel': [{
+          'url': 'https://example.com/pixel.png',
+          'type': 'image'
+        }]
+      }
+    };
+
+    let prebidResponse = [
+      {
+        'requestId': '3000aa31c41a29c21',
+        'cpm': 1.07,
+        'width': 160,
+        'height': 600,
+        'ad': `<div>Quantumdex AD</div>`,
+        'ttl': 500,
+        'creativeId': '1234abcd',
+        'netRevenue': true,
+        'currency': 'USD',
+        'dealId': 'quantumdex',
+        'mediaType': 'banner'
+      },
+      {
+        'requestId': '30024615be22ef66a',
+        'cpm': 1,
+        'width': 300,
+        'height': 250,
+        'ad': `<div>Quantumdex AD</div>`,
+        'ttl': 500,
+        'creativeId': '1234abcd',
+        'netRevenue': true,
+        'currency': 'USD',
+        'dealId': 'quantumdex',
+        'mediaType': 'banner'
+      },
+      {
+        'requestId': '1854b40107d6745c',
+        'cpm': 1.25,
+        'width': 300,
+        'height': 250,
+        'vastXml': '<VAST><Ad id="20001"><InLine><AdSystem version="4.0">quantumdex</AdSystem></InLine></Ad></VAST>',
+        'ttl': 500,
+        'creativeId': '30292e432662bd5f86d90774b944b038',
+        'netRevenue': true,
+        'currency': 'USD',
+        'dealId': 'quantumdex',
+        'mediaType': 'video'
+      }
+    ];
+
+    it('should map bidResponse to prebidResponse', function () {
+      const response = spec.interpretResponse(serverResponse, bidRequests);
+      response.forEach((resp, i) => {
+        expect(resp.requestId).to.equal(prebidResponse[i].requestId);
+        expect(resp.cpm).to.equal(prebidResponse[i].cpm);
+        expect(resp.width).to.equal(prebidResponse[i].width);
+        expect(resp.height).to.equal(prebidResponse[i].height);
+        expect(resp.ttl).to.equal(prebidResponse[i].ttl);
+        expect(resp.creativeId).to.equal(prebidResponse[i].creativeId);
+        expect(resp.netRevenue).to.equal(prebidResponse[i].netRevenue);
+        expect(resp.currency).to.equal(prebidResponse[i].currency);
+        expect(resp.dealId).to.equal(prebidResponse[i].dealId);
+        if (resp.mediaType === 'video') {
+          expect(resp.vastXml.indexOf('quantumdex')).to.be.greaterThan(0);
+        }
+        if (resp.mediaType === 'banner') {
+          expect(resp.ad.indexOf('Quantumdex AD')).to.be.greaterThan(0);
+        }
+      });
+    });
+  });
+
+  describe('.getUserSyncs', function () {
+    let bidResponse = [{
+      'body': {
+        'pixel': [{
+          'url': 'https://pixel-test',
+          'type': 'image'
+        }]
+      }
+    }];
+
+    it('should return one sync pixel', function () {
+      expect(spec.getUserSyncs({ pixelEnabled: true }, bidResponse)).to.deep.equal([{
+        type: 'image',
+        url: 'https://pixel-test'
+      }]);
+    });
+    it('should return an empty array when sync is enabled but there are no bidResponses', function () {
+      expect(spec.getUserSyncs({ pixelEnabled: true }, [])).to.have.length(0);
+    });
+
+    it('should return an empty array when sync is enabled but no sync pixel returned', function () {
+      const pixel = Object.assign({}, bidResponse);
+      delete pixel[0].body.pixel;
+      expect(spec.getUserSyncs({ pixelEnabled: true }, bidResponse)).to.have.length(0);
+    });
+
+    it('should return an empty array', function () {
+      expect(spec.getUserSyncs({ pixelEnabled: false }, bidResponse)).to.have.length(0);
+      expect(spec.getUserSyncs({ pixelEnabled: true }, [])).to.have.length(0);
+    });
+  });
+});