From d6050a5675125d22b543d19429c16c1c48181de4 Mon Sep 17 00:00:00 2001
From: Ashley Harrison <ashley.harrison@grafana.com>
Date: Wed, 22 Jan 2025 10:49:55 +0000
Subject: [PATCH] add MessageChannel mock

---
 public/test/jest-setup.ts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/public/test/jest-setup.ts b/public/test/jest-setup.ts
index 72a8d66c0dc..7eef807e199 100644
--- a/public/test/jest-setup.ts
+++ b/public/test/jest-setup.ts
@@ -42,6 +42,22 @@ window.matchMedia = (query) => ({
   dispatchEvent: jest.fn(),
 });
 
+window.MessageChannel = jest.fn().mockImplementation(() => {
+  let onmessage: Function;
+  return {
+    port1: {
+      set onmessage(cb: Function) {
+        onmessage = cb;
+      },
+    },
+    port2: {
+      postMessage: (data: unknown) => {
+        onmessage?.({ data });
+      },
+    },
+  };
+});
+
 angular.module('grafana', ['ngRoute']);
 angular.module('grafana.services', ['ngRoute', '$strap.directives']);
 angular.module('grafana.panels', []);