Medium: Enzyme example test

enzyme-test.js

import * as React from "react";
import ReactDOM from "react-dom";
import { Input } from "../";

test("it initializes with a defaultValue", () => {
  const defaultValue = "DefaultValue";
  const wrapper = mount(<Input initialValue={defaultValue} />);
  const input = wrapper.find("input");

  expect(input.instance().value).toBe(defaultValue);
});