update elements and fix some bugs

lib/src/iron-test-helpers/mock-interactions.js

 /**
  * @license
  * Copyright (c) 2014 The Polymer Project Authors. All rights reserved.
  * This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
  * The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
  * The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
  * Code distributed by Google as part of the polymer project is also
  * subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
  */
 
@@ skipping 22 matching lines @@
       y: bcr.top,
       x: bcr.left
     };
   }
 
   function makeEvent(type, xy, node) {
     var props = {
       bubbles: true,
       cancelable: true,
       clientX: xy.x,
-      clientY: xy.y
+      clientY: xy.y,
+      // Make this a primary input.
+      buttons: 1 // http://developer.mozilla.org/en-US/docs/Web/API/MouseEvent/buttons
     };
     var e;
     var mousetype = type === 'tap' ? 'click' : 'mouse' + type;
     if (HAS_NEW_MOUSE) {
       e = new MouseEvent(mousetype, props);
     } else {
       e = document.createEvent('MouseEvent');
-      e.initMouseEvent(mousetype, props.bubbles, props.cancelable, null, null, 0, 0,
-        props.clientX, props.clientY, false, false, false, false, 0, null);
+      e.initMouseEvent(
+        mousetype, props.bubbles, props.cancelable,
+        null, /* view */
+        null, /* detail */
+        0,    /* screenX */
+        0,    /* screenY */
+        props.clientX, props.clientY,
+        false, /*ctrlKey */
+        false, /*altKey */
+        false, /*shiftKey */
+        false, /*metaKey */
+        0,     /*button */
+        null   /*relatedTarget*/);
     }
     node.dispatchEvent(e);
   }
 
   function down(node, xy) {
     xy = xy || middleOfNode(node);
     makeEvent('down', xy, node);
   }
 
   function move(node, fromXY, toXY, steps) {
@@ skipping 60 matching lines @@
     var xy = middleOfNode(target);
     var xy2 = {
       x: xy.x + dx,
       y: xy.y + dy
     };
     move(target, xy, xy2, steps);
     up(target, xy2);
   }
 
   function keyboardEventFor(type, keyCode) {
-    var event = new CustomEvent(type);
+    var event = new CustomEvent(type, {
+      bubbles: true
+    });
 
     event.keyCode = keyCode;
     event.code = keyCode;
 
     return event;
   }
 
   function keyEventOn(target, type, keyCode) {
     target.dispatchEvent(keyboardEventFor(type, keyCode));
   }
@@ skipping 31 matching lines @@
     track: track,
     pressAndReleaseKeyOn: pressAndReleaseKeyOn,
     pressEnter: pressEnter,
     pressSpace: pressSpace,
     keyDownOn: keyDownOn,
     keyUpOn: keyUpOn,
     middleOfNode: middleOfNode,
     topLeftOfNode: topLeftOfNode
   };
 })(this);