A method that re-mounts the component. This can be used to simulate a component going through an unmount/mount lifecycle.
ReactWrapper
: Returns itself.
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() {
return (
<div className={this.props.id}>
{this.props.id}
</div>
);
}
}
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);
wrapper.mount();
expect(willMount.callCount).to.equal(2);
expect(didMount.callCount).to.equal(2);
expect(willUnmount.callCount).to.equal(1);