sevioBidAdapter_bugfix: Send all sizes instead of just maxSize (prebid#14133)

* Send all sizes instead of just maxSize

* Added tests to cover modifs in the sizes that we are sending

Author: petrican

modules/sevioBidAdapter.js

@@ -179,9 +179,12 @@ export const spec = {
 
     return bidRequests.map((bidRequest) => {
       const isNative = detectAdType(bidRequest)?.toLowerCase() === 'native';
-      const size = bidRequest.mediaTypes?.banner?.sizes[0] || bidRequest.mediaTypes?.native?.sizes[0] || [];
-      const width = size[0];
-      const height = size[1];
+      const adSizes = bidRequest.mediaTypes?.banner?.sizes || bidRequest.mediaTypes?.native?.sizes || [];
+      const formattedSizes = Array.isArray(adSizes)
+        ? adSizes
+          .filter(size => Array.isArray(size) && size.length === 2)
+          .map(([width, height]) => ({ width, height }))
+        : [];
       const originalAssets = bidRequest.mediaTypes?.native?.ortb?.assets || [];
 
       // convert icon to img type 1
@@ -211,10 +214,7 @@ export const spec = {
         })).filter(eid => eid.source && eid.id),
         ads: [
           {
-            maxSize: {
-              width: width,
-              height: height,
-            },
+            sizes: formattedSizes,
             referenceId: bidRequest.params.referenceId,
             tagId: bidRequest.params.zone,
             type: detectAdType(bidRequest),

test/spec/modules/sevioBidAdapter_spec.js

@@ -408,5 +408,42 @@ describe('sevioBidAdapter', function () {
         Object.defineProperty(perfTop, 'timing', { configurable: true, value: undefined });
       }
     });
+
+    it('handles multiple sizes correctly', function () {
+      const multiSizeBidRequests = [
+        {
+          bidder: 'sevio',
+          params: { zone: 'zoneId' },
+          mediaTypes: {
+            banner: {
+              sizes: [
+                [300, 250],
+                [728, 90],
+                [160, 600],
+              ]
+            }
+          },
+          bidId: 'multi123',
+        }
+      ];
+
+      const bidderRequests = {
+        refererInfo: {
+          numIframes: 0,
+          reachedTop: true,
+          referer: 'https://example.com',
+          stack: ['https://example.com']
+        }
+      };
+
+      const request = spec.buildRequests(multiSizeBidRequests, bidderRequests);
+      const sizes = request[0].data.ads[0].sizes;
+
+      expect(sizes).to.deep.equal([
+        { width: 300, height: 250 },
+        { width: 728, height: 90 },
+        { width: 160, height: 600 },
+      ]);
+    });
   });
 });