function InjectorComponent(props) {
  function injectDataAttribute(reactElement) {
    if (React.isValidElement(reactElement)) {
      try {
        reactElement.type.attrs = { "data-test-id": reactElement.type.displayName};
      } catch(e) {}

    }
  }
  React.Children.forEach(props.children, (child) => TraverseReactTree(child, injectDataAttribute));
  return props.children;
}

function TraverseReactTree(reactElem, cb) {
  if (React.isValidElement(reactElem)) {
    cb(reactElem);
    React.Children.map(reactElem.props.children, (child) => {
      cb(child);
      TraverseReactTree(child, cb);
    });
  }