GumGum Bid Adapter: use ad response sizes when found (#6649)

* adds meta field to bidresponse

* adds meta mediatype and advertiserdomain default

* use response sizes in bidresponse

modules/gumgumBidAdapter.js

@@ -384,7 +384,9 @@ function interpretResponse (serverResponse, bidRequest) {
     ad: {
       price: 0,
       id: 0,
-      markup: ''
+      markup: '',
+      width: 0,
+      height: 0
     },
     pag: {
       pvid: 0
@@ -399,7 +401,9 @@ function interpretResponse (serverResponse, bidRequest) {
       price: cpm,
       id: creativeId,
       markup,
-      cur
+      cur,
+      width: responseWidth,
+      height: responseHeight
     },
     cw: wrapper,
     pag: {
@@ -415,7 +419,8 @@ function interpretResponse (serverResponse, bidRequest) {
   let product = data.pi
   let mediaType = (product === 6 || product === 7) ? VIDEO : BANNER
   let isTestUnit = (product === 3 && data.si === 9)
-  let sizes = utils.parseSizesInput(bidRequest.sizes)
+  // use response sizes if available
+  let sizes = responseWidth && responseHeight ? [`${responseWidth}x${responseHeight}`] : utils.parseSizesInput(bidRequest.sizes)
   let [width, height] = sizes[0].split('x')
   let metaData = {
     advertiserDomains: advertiserDomains || [],

test/spec/modules/gumgumBidAdapter_spec.js

@@ -564,6 +564,25 @@ describe('gumgumAdapter', function () {
       expect(result.length).to.equal(0);
     });
 
+    it('uses response width and height', function () {
+      const result = spec.interpretResponse({ body: serverResponse }, bidRequest)[0];
+      expect(result.width).to.equal(serverResponse.ad.width.toString());
+      expect(result.height).to.equal(serverResponse.ad.height.toString());
+    });
+
+    it('defaults to use bidRequest sizes when width and height are not found', function () {
+      const { ad, jcsi, pag, thms, meta } = serverResponse
+      const noAdSizes = { ...ad }
+      delete noAdSizes.width
+      delete noAdSizes.height
+      const responseWithoutSizes = { jcsi, pag, thms, meta, ad: noAdSizes }
+      const request = { ...bidRequest, sizes: [[100, 200]] }
+      const result = spec.interpretResponse({ body: responseWithoutSizes }, request)[0];
+
+      expect(result.width).to.equal(request.sizes[0][0].toString())
+      expect(result.height).to.equal(request.sizes[0][1].toString())
+    });
+
     it('returns 1x1 when eligible product and size available', function () {
       let inscreenBidRequest = {
         id: 12346,