add default value domComplexity

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: getDomComplexity(document),
       deviceWidth: screen.width,
       deviceHeight: screen.height,
       devicePixelRatio: topWindow.devicePixelRatio,
@@ -235,7 +235,11 @@ function getConnectionDownLink(nav) {
 function getNetworkQuality(navigator) {
   const connection = navigator.connection || navigator.mozConnection || navigator.webkitConnection;
 
-  return connection?.effectiveType ?? ''
+  return connection?.effectiveType ?? '';
+}
+
+function getDomComplexity(document) {
+  return document?.querySelectorAll('*')?.length ?? -1;
 }
 
 function getTimeToFirstByte(win) {

test/spec/modules/teadsBidAdapter_spec.js

@@ -266,12 +266,14 @@ describe('teadsBidAdapter', () => {
       const request = spec.buildRequests(bidRequests, bidderRequestDefault);
       const payload = JSON.parse(request.data);
 
-      const domComplexity = document.querySelectorAll('*').length;
+      const domComplexity = document?.querySelectorAll('*')?.length;
 
       expect(payload.domComplexity).to.exist;
 
       if (domComplexity) {
         expect(payload.domComplexity).to.deep.equal(domComplexity);
+      } else {
+        expect(payload.domComplexity).to.deep.equal(-1);
       }
     })