Add test case for domComplexity feature

Author: teads-antoine-azar

modules/teadsBidAdapter.js

@@ -62,7 +62,7 @@ export const spec = {
       networkQuality: getNetworkQuality(window.navigator),
       timeToFirstByte: getTimeToFirstByte(window),
       data: bids,
-      domComplexity: document.querySelectorAll("*")?.length,
+      domComplexity: document.querySelectorAll('*')?.length,
       deviceWidth: screen.width,
       deviceHeight: screen.height,
       devicePixelRatio: topWindow.devicePixelRatio,
@@ -235,7 +235,7 @@ function getConnectionDownLink(nav) {
 function getNetworkQuality(navigator) {
   const connection = navigator.connection || navigator.mozConnection || navigator.webkitConnection;
 
-  return connection?.effectiveType ?? ""
+  return connection?.effectiveType ?? ''
 }
 
 function getTimeToFirstByte(win) {

test/spec/modules/teadsBidAdapter_spec.js

@@ -266,7 +266,13 @@ describe('teadsBidAdapter', () => {
       const request = spec.buildRequests(bidRequests, bidderRequestDefault);
       const payload = JSON.parse(request.data);
 
+      const domComplexity = document.querySelectorAll('*').length;
+
       expect(payload.domComplexity).to.exist;
+
+      if (domComplexity) {
+        expect(payload.domComplexity).to.deep.equal(domComplexity);
+      }
     })
 
     it('should add pageReferrer info to payload', function () {