enzyme
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JavaScript Testing utilities for React
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Markdown
# `.unmount() => Self`
A method that unmounts the component. This can be used to simulate a component going through
an unmount/mount lifecycle.
#### Returns
`ReactWrapper`: Returns itself.
#### Example
```jsx
import PropTypes from 'prop-types';
const willMount = sinon.spy();
const didMount = sinon.spy();
const willUnmount = sinon.spy();
class Foo extends React.Component {
constructor(props) {
super(props);
this.componentWillUnmount = willUnmount;
this.componentWillMount = willMount;
this.componentDidMount = didMount;
}
render() {
const { id } = this.props;
return (
<div className={id}>
{id}
</div>
);
}
}
Foo.propTypes = {
id: PropTypes.string.isRequired,
};
const wrapper = mount(<Foo id="foo" />);
expect(willMount.callCount).to.equal(1);
expect(didMount.callCount).to.equal(1);
expect(willUnmount.callCount).to.equal(0);
wrapper.unmount();
expect(willMount.callCount).to.equal(1);
expect(didMount.callCount).to.equal(1);
expect(willUnmount.callCount).to.equal(1);
```
#### Related Methods
- [`.mount() => Self`](mount.md)