1 files changed, 66 insertions, 0 deletions
diff --git a/browser/base/content/test/alerts/browser_notification_replace.js b/browser/base/content/test/alerts/browser_notification_replace.js
new file mode 100644
index 0000000000..9c72e90ab1
--- /dev/null
+++ b/browser/base/content/test/alerts/browser_notification_replace.js
@@ -0,0 +1,66 @@
+"use strict";
+
+let notificationURL =
+  // eslint-disable-next-line @microsoft/sdl/no-insecure-url
+  "http://example.org/browser/browser/base/content/test/alerts/file_dom_notifications.html";
+
+add_task(async function test_notificationReplace() {
+  await addNotificationPermission(notificationURL);
+
+  await BrowserTestUtils.withNewTab(
+    {
+      gBrowser,
+      url: notificationURL,
+    },
+    async function dummyTabTask(aBrowser) {
+      await SpecialPowers.spawn(aBrowser, [], async function () {
+        let win = content.window.wrappedJSObject;
+        let notification = win.showNotification1();
+        let promiseCloseEvent = ContentTaskUtils.waitForEvent(
+          notification,
+          "close"
+        );
+
+        let showEvent = await ContentTaskUtils.waitForEvent(
+          notification,
+          "show"
+        );
+        Assert.equal(
+          showEvent.target.body,
+          "Test body 1",
+          "Showed tagged notification"
+        );
+
+        let newNotification = win.showNotification2();
+        let newShowEvent = await ContentTaskUtils.waitForEvent(
+          newNotification,
+          "show"
+        );
+        Assert.equal(
+          newShowEvent.target.body,
+          "Test body 2",
+          "Showed new notification with same tag"
+        );
+
+        let closeEvent = await promiseCloseEvent;
+        Assert.equal(
+          closeEvent.target.body,
+          "Test body 1",
+          "Closed previous tagged notification"
+        );
+
+        let promiseNewCloseEvent = ContentTaskUtils.waitForEvent(
+          newNotification,
+          "close"
+        );
+        newNotification.close();
+        let newCloseEvent = await promiseNewCloseEvent;
+        Assert.equal(
+          newCloseEvent.target.body,
+          "Test body 2",
+          "Closed new notification"
+        );
+      });
+    }
+  );
+});