1% experiment - AdSense/GAM ad request ptt parameter (ampproject#30764)

* 1% AdSense/GAM ad ptt parameter experiment

* prettify

* address feedback

* review feedback

* lint

Author: keithwrightbos

build-system/global-configs/canary-config.json

@@ -35,5 +35,7 @@
   "amp-ad-no-center-css": 0,
   "analytics-chunks": 1,
   "render-on-idle-fix": 1,
-  "build-in-chunks": 1
+  "build-in-chunks": 1,
+  "adsense-ptt-exp": 0.02,
+  "doubleclick-ptt-exp": 0.02
 }

build-system/global-configs/prod-config.json

@@ -33,5 +33,7 @@
   "swg-gpay-api": 1,
   "swg-gpay-native": 1,
   "amp-ad-no-center-css": 0,
-  "analytics-chunks": 1
+  "analytics-chunks": 1,
+  "adsense-ptt-exp": 0.02,
+  "doubleclick-ptt-exp": 0.02
 }

extensions/amp-ad-network-adsense-impl/0.1/amp-ad-network-adsense-impl.js

@@ -53,9 +53,12 @@ import {domFingerprintPlain} from '../../../src/utils/dom-fingerprint';
 import {getAmpAdRenderOutsideViewport} from '../../amp-ad/0.1/concurrent-load';
 import {getData} from '../../../src/event-helper';
 import {getDefaultBootstrapBaseUrl} from '../../../src/3p-frame';
+import {
+  getExperimentBranch,
+  randomlySelectUnsetExperiments,
+} from '../../../src/experiments';
 import {getMode} from '../../../src/mode';
 import {insertAnalyticsElement} from '../../../src/extension-analytics';
-import {randomlySelectUnsetExperiments} from '../../../src/experiments';
 import {removeElement} from '../../../src/dom';
 import {stringHash32} from '../../../src/string';
 import {utf8Decode} from '../../../src/utils/bytes';
@@ -66,6 +69,15 @@ const ADSENSE_BASE_URL = 'https://googleads.g.doubleclick.net/pagead/ads';
 /** @const {string} */
 const TAG = 'amp-ad-network-adsense-impl';
 
+/** @const {string} */
+const PTT_EXP = 'adsense-ptt-exp';
+
+/** @const @enum{string} */
+const PTT_EXP_BRANCHES = {
+  CONTROL: '21068091',
+  EXPERIMENT: '21068092',
+};
+
 /**
  * Shared state for AdSense ad slots. This is used primarily for ad request url
  * parameters that depend on previous slots.
@@ -220,7 +232,13 @@ export class AmpAdNetworkAdsenseImpl extends AmpA4A {
    * @visibleForTesting
    */
   divertExperiments() {
-    const experimentInfoList = /** @type {!Array<!../../../src/experiments.ExperimentInfo>} */ ([]);
+    const experimentInfoList = /** @type {!Array<!../../../src/experiments.ExperimentInfo>} */ ([
+      {
+        experimentId: PTT_EXP,
+        isTrafficEligible: () => true,
+        branches: Object.values(PTT_EXP_BRANCHES),
+      },
+    ]);
     const setExps = randomlySelectUnsetExperiments(
       this.win,
       experimentInfoList
@@ -323,6 +341,10 @@ export class AmpAdNetworkAdsenseImpl extends AmpA4A {
       'format': format,
       'w': sizeToSend.width,
       'h': sizeToSend.height,
+      'ptt':
+        getExperimentBranch(this.win, PTT_EXP) === PTT_EXP_BRANCHES.EXPERIMENT
+          ? 12
+          : null,
       'iu': slotname,
       'npa':
         consentState == CONSENT_POLICY_STATE.INSUFFICIENT ||

extensions/amp-ad-network-adsense-impl/0.1/test/test-amp-ad-network-adsense-impl.js

@@ -731,6 +731,14 @@ describes.realWin(
             /(\?|&)is_amp=5(&|$)/
           );
         });
+        it('does not set ptt parameter by default', () =>
+          expect(impl.getAdUrl()).to.not.eventually.match(/(\?|&)ptt=(&|$)/));
+        it('sets ptt parameter', () => {
+          forceExperimentBranch(impl.win, 'adsense-ptt-exp', '21068092');
+          return expect(impl.getAdUrl()).to.eventually.match(
+            /(\?|&)ptt=12(&|$)/
+          );
+        });
       });
 
       // Not using arrow function here because otherwise the way closure behaves

extensions/amp-ad-network-doubleclick-impl/0.1/amp-ad-network-doubleclick-impl.js

@@ -144,6 +144,15 @@ const ZINDEX_EXP_BRANCHES = {
   HOLDBACK: '21065357',
 };
 
+/** @const {string} */
+const PTT_EXP = 'doubleclick-ptt-exp';
+
+/** @const @enum{string} */
+const PTT_EXP_BRANCHES = {
+  CONTROL: '21068093',
+  EXPERIMENT: '21068094',
+};
+
 /**
  * Required size to be sent with fluid requests.
  * @const {string}
@@ -430,6 +439,11 @@ export class AmpAdNetworkDoubleclickImpl extends AmpA4A {
         isTrafficEligible: () => true,
         branches: Object.values(ZINDEX_EXP_BRANCHES),
       },
+      {
+        experimentId: PTT_EXP,
+        isTrafficEligible: () => true,
+        branches: Object.values(PTT_EXP_BRANCHES),
+      },
     ]);
     const setExps = this.randomlySelectUnsetExperiments_(experimentInfoList);
     Object.keys(setExps).forEach(
@@ -559,6 +573,9 @@ export class AmpAdNetworkDoubleclickImpl extends AmpA4A {
     const {consentString, gdprApplies} = consentTuple;
 
     return {
+      'ptt': this.experimentIds.includes(PTT_EXP_BRANCHES.EXPERIMENT)
+        ? 13
+        : null,
       'npa':
         consentTuple.consentState == CONSENT_POLICY_STATE.INSUFFICIENT ||
         consentTuple.consentState == CONSENT_POLICY_STATE.UNKNOWN

extensions/amp-ad-network-doubleclick-impl/0.1/test/test-amp-ad-network-doubleclick-impl.js

@@ -1079,6 +1079,13 @@ describes.realWin('amp-ad-network-doubleclick-impl', realWinConfig, (env) => {
         expect(url).to.not.match(/(=|%2C)2106317(3|4)(%2C|&|$)/);
       });
     });
+
+    it('does not set ptt parameter by default', () =>
+      expect(impl.getAdUrl()).to.not.eventually.match(/(\?|&)ptt=(&|$)/));
+    it('sets ptt parameter', () => {
+      impl.experimentIds = ['21068094'];
+      return expect(impl.getAdUrl()).to.eventually.match(/(\?|&)ptt=13(&|$)/);
+    });
   });
 
   describe('#getPageParameters', () => {