[fix] Fix Rating return NaN when using user event

packages/mui-material/src/Rating/Rating.js

@@ -407,6 +407,12 @@ const Rating = React.forwardRef(function Rating(inProps, ref) {
     let newHover = roundValueToPrecision(max * percent + precision / 2, precision);
     newHover = clamp(newHover, precision, max);
 
+    if (Number.isNaN(newHover)) {
+      // Workaround for test scenario using userEvent since jsdom defaults getBoundingClientRect to 0
+      // Fix https://github.com/mui/material-ui/issues/38828
+      newHover = -1;
+    }
+
     setState((prev) =>
       prev.hover === newHover && prev.focus === newHover
         ? prev

packages/mui-material/src/Rating/Rating.test.js

@@ -4,6 +4,7 @@ import { stub, spy } from 'sinon';
 import { act, createRenderer, fireEvent, screen } from '@mui/internal-test-utils';
 import Rating, { ratingClasses as classes } from '@mui/material/Rating';
 import { createTheme, ThemeProvider } from '@mui/material/styles';
+import userEvent from '@testing-library/user-event';
 import describeConformance from '../../test/describeConformance';
 
 describe('<Rating />', () => {
@@ -121,6 +122,21 @@ describe('<Rating />', () => {
     expect(checked.value).to.equal('2');
   });
 
+  it('should select the rating with user clicks', async () => {
+    const user = userEvent.setup();
+    const handleChange = spy();
+
+    const { container } = render(<Rating name="rating-test" onChange={handleChange} />);
+
+    await user.click(screen.getByLabelText('2 Stars'));
+
+    expect(handleChange.callCount).to.equal(1);
+    expect(handleChange.args[0][1]).to.equal(2);
+
+    const checked = container.querySelector('input[name="rating-test"]:checked');
+    expect(checked.value).to.equal('2');
+  });
+
   it('should change the value to null', () => {
     const handleChange = spy();
     render(<Rating name="rating-test" onChange={handleChange} value={2} />);