From 05bf2525d9bdf733d51786cbc566d082716c8705 Mon Sep 17 00:00:00 2001
From: Andrew Telnov <andrew.telnov@gmail.com>
Date: Fri, 6 Dec 2024 10:53:40 +0200
Subject: [PATCH] Add unit test for listModel.isEmpty

---
 packages/survey-core/tests/listModelTests.ts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/packages/survey-core/tests/listModelTests.ts b/packages/survey-core/tests/listModelTests.ts
index bbdfe2b953..1bd1ab1438 100644
--- a/packages/survey-core/tests/listModelTests.ts
+++ b/packages/survey-core/tests/listModelTests.ts
@@ -131,6 +131,23 @@ QUnit.test("ListModel custom onFilter", assert => {
   ListModel.MINELEMENTCOUNT = oldValueMINELEMENTCOUNT;
 });
 
+QUnit.test("ListModel: refresh & isEmpty", assert => {
+  const items = [
+    new Action({ id: "test1", title: "test1" }),
+    new Action({ id: "test2", title: "test2" })
+  ];
+  const myObject = new MyObject(items);
+  const list = new ListModel({ items: items, onSelectionChanged: () => { }, allowSelection: true } as any);
+  assert.equal(list.isEmpty, false, "#1");
+  list.actions[0].setVisible(false);
+  list.actions[1].setVisible(false);
+  list.refresh();
+  assert.equal(list.isEmpty, true, "#2");
+  list.actions[1].setVisible(true);
+  list.refresh();
+  assert.equal(list.isEmpty, false, "#3");
+});
+
 QUnit.test("ListModel custom onFilter: item is not found when a search string contains a white space", assert => {
   ListModel.MINELEMENTCOUNT = 5;
   const items = [