export default class myComponent extends Component {
    constructor(props) {
        super(props);
    }

     async componentDidMount() {
        try {
            let response = await axios.get(`server/url/endpoint`);
            this._processSuccess(response.data);
        } catch(e) {
            this._processFail(e);
        }
    }

    _processSuccess(response) {
        this.setState({pageTitle: response.data.title, text: response.data.text});
    }

    render() {
        return (
            <div className="title">{this.state.pageTitle}</div>
        );
    }
}

import React from 'react'
import MyComponent from './MyComponent'
import renderer from 'react-test-renderer'
import { shallow, mount } from 'enzyme'