1.md

function _pasteText($element, text, { availableFormats }) {
  const pasteEvent = new window.Event('paste');
  pasteEvent.clipboardData = {
    getData: type => (type in availableFormats) ? text || '' : ''
  };
  placeCursorAtStartOfNode($element[0]);
  $element[0].dispatchEvent(pasteEvent);
  $element.closest('.AsMediumEditor').trigger(Ember.$.Event('input'));
}

_pasteText(this.$('.AsMediumEditor'), HTML_WITH_ONCLICK_HANDLER, { availableFormats: ['text/html', 'text/plain'] });

_pasteText(this.$('.AsMediumEditor'), 'Foo\nBar\nBaz', { availableFormats: ['text/plain'] });