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+<!doctype html>
+<!--
+@license
+Copyright (c) 2015 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
+-->
+
+<html>
+<head>
+
+  <title>iron-selector-activate-event</title>
+  <meta charset="UTF-8">
+
+  <script src="../../webcomponentsjs/webcomponents-lite.js"></script>
+  <script src="../../web-component-tester/browser.js"></script>
+  <script src="../../test-fixture/test-fixture-mocha.js"></script>
+
+  <link rel="import" href="../../test-fixture/test-fixture.html">
+  <link rel="import" href="../iron-selector.html">
+
+  <style>
+    .iron-selected {
+      background: #ccc;
+    }
+  </style>
+
+</head>
+<body>
+
+  <test-fixture id="test">
+    <template>
+      <iron-selector id="selector" selected="0">
+        <div>Item 0</div>
+        <div>Item 1</div>
+        <div>Item 2</div>
+        <div>Item 3</div>
+        <div>Item 4</div>
+      </iron-selector>
+    </template>
+  </test-fixture>
+
+  <script>
+
+    suite('activate event', function() {
+
+      var s;
+
+      setup(function () {
+        s = fixture('test');
+      });
+
+      test('activates on tap', function() {
+        assert.equal(s.selected, '0');
+
+        // select Item 1
+        s.children[1].dispatchEvent(new CustomEvent('tap', {bubbles: true}));
+        assert.equal(s.selected, '1');
+      });
+
+      test('activates on tap and fires iron-activate', function(done) {
+        assert.equal(s.selected, '0');
+
+        // attach iron-activate listener
+        s.addEventListener("iron-activate", function(event) {
+          assert.equal(event.detail.selected, '1');
+          assert.equal(event.detail.item, s.children[1]);
+          done();
+        });
+
+        // select Item 1
+        s.children[1].dispatchEvent(new CustomEvent('tap', {bubbles: true}));
+      });
+
+      test('tap on already selected and fires iron-activate', function(done) {
+        assert.equal(s.selected, '0');
+
+        // attach iron-activate listener
+        s.addEventListener("iron-activate", function(event) {
+          assert.equal(event.detail.selected, '0');
+          assert.equal(event.detail.item, s.children[0]);
+          done();
+        });
+
+        // select Item 0
+        s.children[0].dispatchEvent(new CustomEvent('tap', {bubbles: true}));
+      });
+
+      test('activates on mousedown', function() {
+        // set activateEvent to mousedown
+        s.activateEvent = 'mousedown';
+        // select Item 2
+        s.children[2].dispatchEvent(new CustomEvent('mousedown', {bubbles: true}));
+        assert.equal(s.selected, '2');
+      });
+
+      test('activates on mousedown and fires iron-activate', function(done) {
+        // attach iron-activate listener
+        s.addEventListener("iron-activate", function(event) {
+          assert.equal(event.detail.selected, '2');
+          assert.equal(event.detail.item, s.children[2]);
+          done();
+        });
+
+        // set activateEvent to mousedown
+        s.activateEvent = 'mousedown';
+        // select Item 2
+        s.children[2].dispatchEvent(new CustomEvent('mousedown', {bubbles: true}));
+      });
+
+      test('no activation', function() {
+        assert.equal(s.selected, '0');
+        // set activateEvent to null
+        s.activateEvent = null;
+        // select Item 2
+        s.children[2].dispatchEvent(new CustomEvent('mousedown', {bubbles: true}));
+        assert.equal(s.selected, '0');
+      });
+
+      test('activates on tap and preventDefault', function() {
+        // attach iron-activate listener
+        s.addEventListener("iron-activate", function(event) {
+          event.preventDefault();
+        });
+        // select Item 2
+        s.children[2].dispatchEvent(new CustomEvent('tap', {bubbles: true}));
+        // shouldn't got selected since we preventDefault in iron-activate
+        assert.equal(s.selected, '0');
+      });
+
+      test('activates after detach and re-attach', function() {
+        // Detach and re-attach
+        var parent = s.parentNode;
+        parent.removeChild(s);
+        parent.appendChild(s);
+        
+        // select Item 2
+        s.children[2].dispatchEvent(new CustomEvent('tap', {bubbles: true}));
+        assert.equal(s.selected, '2');
+      });
+
+    });
+
+  </script>
+
+</body>
+</html>