message: only configure enzyme once
diff: @@ -2,6 +2,8 @@ import renderer from 'react-test-renderer'
  import enzyme from 'enzyme'
  import Adapter from 'enzyme-adapter-react-16'
  +enzyme.configure({adapter: new Adapter()})
  +
  /**
  * Render the component (a React.createElement() or JSX expression)
  * into its intermediate object representation with 'type',
  @@ -33,11 +35,6 @@ export function renderClasses(component) {
  return className ? className.trim().split(' ') : []
  }
  -let enzymeConfigured = false
  export function mount(component) {
  - if (!enzymeConfigured) {
  - enzymeConfigured = true
  - enzyme.configure({adapter: new Adapter()})
  - }
  return enzyme.mount(component)
  }
  