2 files changed, 45 insertions, 1 deletions
diff --git a/webAO/__tests__/isLowMemory.test.ts b/webAO/__tests__/isLowMemory.test.ts
new file mode 100644
index 0000000..6428e17
--- /dev/null
+++ b/webAO/__tests__/isLowMemory.test.ts
@@ -0,0 +1,44 @@
+import { isLowMemory } from '../client/isLowMemory';
+import { setOldLoading } from '../client';
+
+// Mock the setOldLoading function
+jest.mock('../client', () => ({
+  setOldLoading: jest.fn(),
+}));
+
+describe('isLowMemory', () => {
+  beforeEach(() => {
+    // Reset mock before each test to ensure isolation
+    (setOldLoading as jest.Mock).mockReset();
+  });
+
+  it('should call setOldLoading with true when user agent is low memory device', () => {
+    Object.defineProperty(window, 'navigator', { value: { userAgent: 'Mozilla/5.0 (Web0S; Linux/SmartTV) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.270 Safari/537.36 WebAppManager' }, writable: true });
+    isLowMemory();
+
+    expect(setOldLoading).toHaveBeenCalled();
+  });
+
+  it('should not call setOldLoading when user agent is not a low memory device', () => {
+    Object.defineProperty(window, 'navigator', { value: { userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/137.0.0.0 Safari/537.36' }, writable: true });
+    isLowMemory();
+
+    expect(setOldLoading).not.toHaveBeenCalled();
+  });
+
+  it('should call setOldLoading with true for different low memory devices', () => {
+    const testCases = [
+      'Mozilla/5.0 (iPod touch; CPU iPhone OS 10_3_2 like Mac OS X) AppleWebKit/603.2.4 (KHTML, like Gecko) Version/10.0 Mobile/14F89 Safari/602.1',
+      'Mozilla/5.0 (Linux U; en-US) AppleWebKit/528.5 (KHTML, like Gecko, Safari/528.5 ) Version/4.0 Kindle/3.0 (screen 600x800; rotate) [ip:134.209.137.157]',
+      'Mozilla/5.0 (New Nintendo 3DS like iPhone) AppleWebKit/536.30 (KHTML, like Gecko) NX/3.0.0.5.24 Mobile NintendoBrowser/1.12.10178.EU'
+    ];
+
+    for (const device of testCases) {
+      Object.defineProperty(window, 'navigator', { value: { userAgent: device }, writable: true });
+      isLowMemory();
+
+      expect(setOldLoading).toHaveBeenCalledWith(true);
+    }
+  });
+
+});
+\ No newline at end of file
diff --git a/webAO/client/isLowMemory.ts b/webAO/client/isLowMemory.ts
index 8a8bd48..4f4ed85 100644
--- a/webAO/client/isLowMemory.ts
+++ b/webAO/client/isLowMemory.ts
@@ -1,7 +1,7 @@
 import { setOldLoading } from "../client";
 export const isLowMemory = () => {
   if (
-    /webOS|iPod|BlackBerry|BB|PlayBook|IEMobile|Windows Phone|Kindle|Silk|PlayStation|Nintendo|Opera Mini/i.test(
+    /Web0S|iPod|BlackBerry|BB|PlayBook|IEMobile|Windows Phone|Kindle|Silk|PlayStation|Nintendo|Opera Mini/i.test(
       navigator.userAgent,
     )
   ) {