1 files changed, 12 insertions, 0 deletions
diff --git a/dom/push/test/xpcshell/broadcast_handler.sys.mjs b/dom/push/test/xpcshell/broadcast_handler.sys.mjs
new file mode 100644
index 0000000000..eecf220a6f
--- /dev/null
+++ b/dom/push/test/xpcshell/broadcast_handler.sys.mjs
@@ -0,0 +1,12 @@
+export var broadcastHandler = {
+  reset() {
+    this.notifications = [];
+
+    this.wasNotified = new Promise((resolve, reject) => {
+      this.receivedBroadcastMessage = function () {
+        resolve();
+        this.notifications.push(Array.from(arguments));
+      };
+    });
+  },
+};