test(@react-aria/overlays): add two test case for close on scroll

related to #2340.

The first test case is related to the regression mentioned here: #2341 (comment)

The second test case captures the fix for the cypress issue.

packages/@react-aria/overlays/test/useOverlayPosition.test.js

@@ -163,6 +163,25 @@ describe('useOverlayPosition', function () {
     fireEvent.scroll(document.body);
     expect(onClose).toHaveBeenCalledTimes(1);
   });
+
+  it('should close the overlay when the document scrolls', function () {
+    let onClose = jest.fn();
+    render(<Example isOpen onClose={onClose} />);
+
+    fireEvent.scroll(document);
+    expect(onClose).toHaveBeenCalledTimes(1);
+  });
+
+  it('should not throw or close when target is window in a scroll event', function () {
+    // Cypress triggers an artificial scroll event in `screenshot` command:
+    // https://github.com/cypress-io/cypress/blob/develop/packages/driver/src/cy/commands/screenshot.ts#L106
+    // More info: https://github.com/adobe/react-spectrum/issues/2340
+    let onClose = jest.fn();
+    render(<Example isOpen onClose={onClose} />);
+
+    fireEvent.scroll(window);
+    expect(onClose).toHaveBeenCalledTimes(0);
+  });
 });
 
 describe('useOverlayPosition with positioned container', () => {