function timeoutAsync(cb, delay) {
  return new Promise((resolve, reject) => {
    setTimeout(function() {
      cb();
      resolve(true);
    }, delay);
  });
}

(function($) {
  $(document).ready(function() {

    var $mainMenu = $('#nav-menus');
    var $menuBtn = $('#menu-btn');

    QUnit.test( "hello test", function( assert ) {
      assert.ok( 1 == "1", "Passed!" );
    });

    QUnit.test( "test menu toggle", function( assert ) {
      var done = assert.async();
      assert.equal( $mainMenu.width(), 0 );
      $menuBtn.trigger('click');
      assert.ok( $mainMenu.hasClass('in') );
      assert.ok( $mainMenu.is(':visible') );
      timeoutAsync(() => {
        assert.notEqual( $mainMenu.width(), 0 );
        $menuBtn.trigger('click');
        assert.ok( ! $mainMenu.hasClass('in') );
      }, 100)
      .then(() => timeoutAsync(() => {
        assert.equal( $mainMenu.width(), 0 );
        done();
      }, 160));
    });


  });
})(jQuery);