add tests for gesture private data tracking

src/standard/gestures.html

@@ -443,4 +443,4 @@
   Polymer.Gestures = Gestures;
 
 })();
-</script>
+</script>

test/unit/gestures-elements.html

@@ -51,3 +51,22 @@
 
 </dom-module>
 
+<dom-module id="x-setup">
+  <template>
+    <div id="inner" on-tap="handler" on-track="handler" on-down="handler"
+      on-up="handler"></div>
+  </template>
+  <script>
+    Polymer({
+      is: 'x-setup',
+      listeners: {
+        tap: 'handler',
+        track: 'handler',
+        down: 'handler',
+        up: 'handler'
+      },
+      handler: function(e, detail) {
+      }
+    });
+  </script>
+</dom-module>

test/unit/gestures.html

@@ -55,6 +55,44 @@
 
     });
 
+    suite('Event Setup', function() {
+      var outer, inner;
+      suiteSetup(function() {
+        outer = document.createElement('x-setup');
+        inner = outer.$.inner;
+      });
+
+      test('listeners', function() {
+        assert.equal(outer.__polymerGesturesTouchAction, 'none');
+        var obj = outer.__polymerGestures;
+        assert.equal(obj.mousedown.downup, 2, 'mousedown downup');
+        assert.equal(obj.mousedown.track, 1, 'mousedown track');
+        assert.equal(obj.mousedown.tap, 1, 'mousedown tap');
+        assert.equal(obj.touchstart.downup, 2, 'touchstart downup');
+        assert.equal(obj.touchmove.track, 1, 'touchmove track');
+        assert.equal(obj.touchstart.tap, 1, 'touchstart tap');
+        assert.equal(obj.touchend.downup, 2, 'touchend downup');
+        assert.equal(obj.touchend.track, 1, 'touchend track');
+        assert.equal(obj.touchend.tap, 1, 'touchend tap');
+      });
+
+      test('on-*', function() {
+        assert.equal(inner.__polymerGesturesTouchAction, 'none');
+        var obj = inner.__polymerGestures;
+        assert.equal(obj.mousedown.downup, 2, 'mousedown downup');
+        assert.equal(obj.mousedown.track, 1, 'mousedown track');
+        assert.equal(obj.mousedown.tap, 1, 'mousedown tap');
+        assert.equal(obj.touchstart.downup, 2, 'touchstart downup');
+        assert.equal(obj.touchmove.track, 1, 'touchmove track');
+        assert.equal(obj.touchstart.tap, 1, 'touchstart tap');
+        assert.equal(obj.touchend.downup, 2, 'touchend downup');
+        assert.equal(obj.touchend.track, 1, 'touchend track');
+        assert.equal(obj.touchend.tap, 1, 'touchend tap');
+      });
+    });
+
+    // TODO(dfreedm): Add more gesture tests!
+
   </script>
 
 </body>