only pass default true to renderInput

Author: silviuaavram

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

@@ -677,7 +677,7 @@ const Autocomplete = React.forwardRef(function Autocomplete(inProps, ref) {
         {renderInput({
           id,
           disabled,
-          fullWidth,
+          fullWidth: props.fullWidth ?? true,
           size: size === 'small' ? 'small' : undefined,
           InputLabelProps: getInputLabelProps(),
           InputProps: {

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

@@ -3040,13 +3040,13 @@ describe('<Autocomplete />', () => {
       expect(renderInput.lastCall.args[0].fullWidth).to.equal(false);
     });
 
-    it('should have fullWidth by default', () => {
+    it('should pass fullWidth as true to renderInput if not provided', () => {
       const renderInput = spy((params) => <TextField {...params} />);
       const view = render(
         <Autocomplete options={[0, 10, 20]} renderInput={renderInput} value={null} />,
       );
 
-      expect(view.container.querySelector(`.${classes.root}`)).to.have.class(classes.fullWidth);
+      expect(view.container.querySelector(`.${classes.root}`)).not.to.have.class(classes.fullWidth);
       expect(renderInput.lastCall.args[0].fullWidth).to.equal(true);
     });
   });