Simulate change with material UI and Enzyme not working - reactjs

Question

When I try to simulate a change event with Enzyme in my Material-UI component, value is not changing.
My component looks like this:
export class EditableList extends Component {
...
onChangeNewEntry = event => {
this.setState({newEntry: event.target.value});
};
render() {
const {classes} = this.props;
return (
<div className={classes.div_main}>
<List>
<Paper className={classes.paper_title} elevation={2} key="NewEntry">
<ListItem>
<InputBase
data-testid='input-base'
className={classes.inputBase}
placeholder="New Entry"
value={this.state.newEntry}
onKeyPress={(event) => {
if (event.key === 'Enter') {
event.preventDefault();
this.onCreateItem();
}
}}
onChange={this.onChangeNewEntry}
multiline
/>
</ListItem>
</Paper>
</List>
</div>
);
}
}
My test looks like this:
import React from 'react';
import {Provider} from "react-redux";
import EditableList from "./EditableList";
import store from "../../../../store";
import {createMount, createShallow} from "#material-ui/core/test-utils";
import {InputBase} from "#material-ui/core";
let mount;
let wrapper;
beforeEach(() => {
mount = createMount();
wrapper = mount(
<Provider store={store}>
<EditableList/>
</Provider>
);
});
afterEach(() => {
mount.cleanUp();
});
const findComponent = ( value) => {
return wrapper.find(`[data-testid='${value}']`).first();
};
it('allow user to write input for new item', () => {
const inputBase = findComponent('input-base');
const value = "New item";
inputBase.simulate('change', {target: {value: value}});
wrapper.update();
console.log(inputBase.prop('value'));
});
In the console, the valueis always an empty string.
I tried also the following without success:
wrapper.find(InputBase).at(0).props().onChange({target: {value: value}});
wrapper.find(InputBase).at(0).props().onChange({target: {name: 'InputBase', value: value}});