Bug 1642006 - Part 2: test case; r=baku

Depends on D78272

Differential Revision: https://phabricator.services.mozilla.com/D78273

toolkit/components/antitracking/test/browser/browser_storageAccessWithDynamicFpiHeuristics.js

@@ -28,6 +28,10 @@ add_task(async () => {
         "network.cookie.cookieBehavior",
         Ci.nsICookieService.BEHAVIOR_REJECT_TRACKER_AND_PARTITION_FOREIGN,
       ],
+      ["privacy.restrict3rdpartystorage.heuristic.redirect", false],
+      ["privacy.trackingprotection.enabled", false],
+      ["privacy.trackingprotection.pbmode.enabled", false],
+      ["privacy.trackingprotection.annotate_channels", true],
     ],
   });
   registerCleanupFunction(cleanup);
@@ -155,6 +159,9 @@ add_task(async () => {
     thirdParty: "thirdParty",
   });
 
+  // mark third-party as tracker
+  await UrlClassifierTestUtils.addTestTrackers();
+
   info("load third-party content as first-party");
   await redirectWithUserInteraction(
     browser,
@@ -173,6 +180,33 @@ add_task(async () => {
     TEST_TOP_PAGE
   );
 
+  info("third-party tracker should NOT able to access first-party data");
+  await checkData(browser, {
+    firstParty: "firstParty",
+    thirdParty: "",
+  });
+
+  // remove third-party from tracker
+  await UrlClassifierTestUtils.cleanupTestTrackers();
+
+  info("load third-party content as first-party");
+  await redirectWithUserInteraction(
+    browser,
+    TEST_REDIRECT_3RD_PARTY_PAGE,
+    TEST_3RD_PARTY_PAGE
+  );
+
+  await checkData(browser, {
+    firstParty: "heuristicFirstParty",
+  });
+
+  info("redirect back to first-party page");
+  await redirectWithUserInteraction(
+    browser,
+    TEST_REDIRECT_TOP_PAGE,
+    TEST_TOP_PAGE
+  );
+
   info("third-party page should able to access first-party data");
   await checkData(browser, {
     firstParty: "firstParty",