test/passing-singular-ref-to-child.js
import React, { Component, PureComponent } from 'react'
import { mount } from 'enzyme'
import ref from '../src'
describe('SingularReferences', () => {
it('adds the reference to refs', () => {
class Test extends Component {
render() {
return <ChildComponent reference={ref(this, 'child')} />
}
}
class ChildComponent extends Component {
render() {
return <div ref={this.props.reference} />
}
}
const wrapper = mount(<Test />)
const instance = wrapper.instance()
expect(instance.refs.child).toBeTruthy()
})
it('works when passing the ref to a PureComponent', () => {
class Test extends Component {
render() {
return <ChildComponent reference={ref(this, 'child')} />
}
}
class ChildComponent extends PureComponent {
render() {
return <div ref={this.props.reference} />
}
}
const wrapper = mount(<Test />)
const instance = wrapper.instance()
expect(instance.refs.child).toBeTruthy()
})
it('works when passing the ref to a SFC', () => {
class Test extends Component {
render() {
return <ChildComponent reference={ref(this, 'child')} />
}
}
function ChildComponent({ reference }) {
return <div ref={reference} />
}
const wrapper = mount(<Test />)
const instance = wrapper.instance()
expect(instance.refs.child).toBeTruthy()
})
it('works when using pure components', () => {
class Test extends PureComponent {
render() {
return <ChildComponent reference={ref(this, 'child')} />
}
}
class ChildComponent extends PureComponent {
render() {
return <div ref={this.props.reference} />
}
}
const wrapper = mount(<Test />)
const instance = wrapper.instance()
expect(instance.refs.child).toBeTruthy()
})
})