feat: Create lightning/refresh stub

src/lightning-stubs/refresh/refresh.js

@@ -0,0 +1,44 @@
+/*
+ * Copyright (c) 2025, salesforce.com, inc.
+ * All rights reserved.
+ * SPDX-License-Identifier: MIT
+ * For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT
+ */
+export const RefreshEventName = 'lightning__refresh';
+export class RefreshEvent extends CustomEvent {
+    constructor() {
+        super(RefreshEventName, {
+            composed: true,
+            cancelable: true,
+            bubbles: true,
+        });
+    }
+}
+
+const registeredHandlers = new Map();
+const registeredContainers = new Map();
+let lastAssignedId = -1;
+
+export const registerRefreshHandler = jest.fn((element, handler) => {
+    let elementToRefresh = element;
+    let eventHandler = handler;
+
+    registeredHandlers.set(++lastAssignedId, eventHandler.bind(elementToRefresh));
+    return lastAssignedId;
+});
+
+export const unregisterRefreshHandler = jest.fn((id) => {
+    registeredHandlers.delete(id);
+});
+
+export const registerRefreshContainer = jest.fn((element, handler) => {
+    let elementToRefresh = element;
+    let eventHandler = handler;
+
+    registeredContainers.set(++lastAssignedId, eventHandler.bind(elementToRefresh));
+    return lastAssignedId;
+});
+
+export const unregisterRefreshContainer = jest.fn((id) => {
+    registeredContainers.delete(id);
+});