1 files changed, 37 insertions, 0 deletions
diff --git a/toolkit/components/cookiebanners/test/browser/browser_bannerClicking_slowLoad.js b/toolkit/components/cookiebanners/test/browser/browser_bannerClicking_slowLoad.js
new file mode 100644
index 0000000000..d0d06f3324
--- /dev/null
+++ b/toolkit/components/cookiebanners/test/browser/browser_bannerClicking_slowLoad.js
@@ -0,0 +1,37 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+add_setup(clickTestSetup);
+
+/**
+ * Test the banner clicking with the case where the banner is added shortly after
+ * page load, but the page load itself is delayed.
+ */
+add_task(async function test_clicking_with_delayed_banner() {
+  await SpecialPowers.pushPrefEnv({
+    set: [
+      ["cookiebanners.service.mode", Ci.nsICookieBannerService.MODE_REJECT],
+    ],
+  });
+
+  insertTestClickRules();
+
+  await testClickResultTelemetry({});
+
+  // A test page that has a delayed load event.
+  let TEST_PAGE = TEST_ORIGIN_A + TEST_PATH + "file_delayed_banner_load.html";
+  await openPageAndVerify({
+    win: window,
+    domain: TEST_DOMAIN_A,
+    testURL: TEST_PAGE,
+    visible: false,
+    expected: "OptOut",
+  });
+
+  await testClickResultTelemetry({
+    success: 1,
+    success_mutation_post_load: 1,
+  });
+});