fix jest polyfills

welldone-software · Dec 28, 2024 · 1f524c0 · 1f524c0
1 parent cd969a0
commit 1f524c0
Showing 1 changed file with 18 additions and 0 deletions.
diff --git a/jest.polyfills.js b/jest.polyfills.js
@@ -22,3 +22,21 @@ Object.defineProperties(globalThis, {
   Blob: { value: Blob },
   File: { value: File },
 });
+
+window.MessageChannel = jest.fn().mockImplementation(() => {
+  let onmessage;
+  return {
+    port1: {
+      set onmessage(cb) {
+        onmessage = cb;
+      },
+    },
+    port2: {
+      postMessage: data => {
+        if (onmessage) {
+          onmessage({ data });
+        }
+      },
+    },
+  };
+});