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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-resizable-behavior tests</title>
+  <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
+
+  <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-resizable-behavior.html">
+  <link rel="import" href="test-elements.html">
+
+</head>
+<body>
+
+<!--
+
+Notes on Polyfill compatibility in tests:
+- Test elements loaded via imports, to ensure load order correctness
+  w.r.t. Polymer.mixin being availbale
+- Resize notifications and asserts are done asynchronously, since
+  there are timing differences w.r.t. when detached callbacks occur
+
+-->
+
+  <test-fixture id="TestElement">
+    <template>
+      <test-element></test-element>
+    </template>
+  </test-fixture>
+
+
+  <script>
+
+  suite('iron-resizable-behavior', function() {
+    function ListenForResize(el, expectsResize) {
+      var listener = function(event) {
+        var target = event.path ? event.path[0] : event.target;
+        pendingNotifications--;
+      };
+
+      if (expectsResize !== false) {
+        pendingNotifications++;
+      }
+
+      el.addEventListener('iron-resize', listener);
+
+      return {
+        el: el,
+        remove: function() {
+          el.removeEventListener('iron-resize', listener);
+        }
+      };
+    }
+
+    function RemoveListeners(listeners) {
+      listeners.forEach(function(listener) {
+        listener.remove();
+      });
+    }
+
+    var pendingNotifications;
+    var testEl;
+
+    setup(function() {
+      pendingNotifications = 0;
+      testEl = fixture('TestElement');
+    });
+
+    suite('x-resizer-parent', function() {
+
+      test('notify resizables from window', function() {
+        var listeners = [
+          ListenForResize(testEl.$.parent),
+          ListenForResize(testEl.$.child1a),
+          ListenForResize(testEl.$.child1b),
+          ListenForResize(testEl.$.shadow1c.$.resizable),
+          ListenForResize(testEl.$.shadow1d.$.resizable)
+        ];
+
+        window.dispatchEvent(new CustomEvent('resize', { bubbles: false }));
+        expect(pendingNotifications).to.be.eql(0);
+
+        RemoveListeners(listeners);
+      });
+
+      test('notify resizables from parent', function() {
+        var listeners = [
+          ListenForResize(testEl.$.parent),
+          ListenForResize(testEl.$.child1a),
+          ListenForResize(testEl.$.child1b),
+          ListenForResize(testEl.$.shadow1c.$.resizable),
+          ListenForResize(testEl.$.shadow1d.$.resizable)
+        ];
+
+        testEl.$.parent.notifyResize();
+        expect(pendingNotifications).to.be.eql(0);
+        RemoveListeners(listeners);
+      });
+
+      test('detach resizables then notify parent', function() {
+        sinon.spy(testEl.$.child1a, 'notifyResize');
+        sinon.spy(testEl.$.shadow1c.$.resizable, 'notifyResize');
+        sinon.spy(testEl.$.child1b, 'notifyResize');
+        sinon.spy(testEl.$.shadow1d.$.resizable, 'notifyResize');
+
+        var firstElementToRemove = testEl.$.child1a;
+        var firstElementParent = Polymer.dom(firstElementToRemove).parentNode;
+        var secondElementToRemove = testEl.$.shadow1c.$.resizable;
+        var secondElementParent = Polymer.dom(secondElementToRemove).parentNode;
+
+        Polymer.dom(firstElementParent).removeChild(firstElementToRemove);
+        Polymer.dom(secondElementParent).removeChild(secondElementToRemove);
+
+        Polymer.dom.flush();
+
+        testEl.$.parent.notifyResize();
+
+        expect(testEl.$.child1a.notifyResize.callCount).to.be.equal(0);
+        expect(testEl.$.shadow1c.$.resizable.notifyResize.callCount).to.be.equal(0);
+        expect(testEl.$.child1b.notifyResize.callCount).to.be.equal(1);
+        expect(testEl.$.shadow1d.$.resizable.notifyResize.callCount).to.be.equal(1);
+      });
+
+      test('detach parent then notify window', function(done) {
+        var listeners = [
+          ListenForResize(testEl.$.parent, false),
+          ListenForResize(testEl.$.child1a, false),
+          ListenForResize(testEl.$.child1b, false),
+          ListenForResize(testEl.$.shadow1c.$.resizable, false),
+          ListenForResize(testEl.$.shadow1d.$.resizable, false)
+        ];
+
+        var el = Polymer.dom(testEl.root).querySelector('#parent');
+
+        el.parentNode.removeChild(el);
+
+        setTimeout(function() {
+          try {
+            window.dispatchEvent(new CustomEvent('resize', { bubbles: false }));
+            expect(pendingNotifications).to.be.eql(0);
+            RemoveListeners(listeners);
+            done();
+          } catch (e) {
+            done(e);
+          }
+        }, 0);
+      });
+
+    });
+
+    suite('x-resizer-parent-filtered', function() {
+
+      test('notify resizables from window', function() {
+        var listeners = [
+          ListenForResize(testEl.$.parentFiltered),
+          ListenForResize(testEl.$.child2a),
+          ListenForResize(testEl.$.child2b, false),
+          ListenForResize(testEl.$.shadow2c.$.resizable, false),
+          ListenForResize(testEl.$.shadow2d.$.resizable, false)
+        ];
+
+        testEl.$.parentFiltered.active = testEl.$.child2a;
+
+        window.dispatchEvent(new CustomEvent('resize', { bubbles: false }));
+        expect(pendingNotifications).to.be.eql(0);
+        RemoveListeners(listeners);
+      });
+
+      test('notify resizables from parent', function() {
+        var listeners = [
+          ListenForResize(testEl.$.parentFiltered),
+          ListenForResize(testEl.$.child2a),
+          ListenForResize(testEl.$.child2b, false),
+          ListenForResize(testEl.$.shadow2c.$.resizable, false),
+          ListenForResize(testEl.$.shadow2d.$.resizable, false)
+        ];
+
+        testEl.$.parentFiltered.active = testEl.$.child2a;
+
+        testEl.$.parentFiltered.notifyResize();
+        expect(pendingNotifications).to.be.eql(0);
+        RemoveListeners(listeners);
+      });
+
+      test('detach resizables then notify parent', function() {
+        var listeners = [
+          ListenForResize(testEl.$.parentFiltered),
+          ListenForResize(testEl.$.child2a, false),
+          ListenForResize(testEl.$.child2b, false),
+          ListenForResize(testEl.$.shadow2c.$.resizable, false),
+          ListenForResize(testEl.$.shadow2d.$.resizable)
+        ];
+
+        var el = Polymer.dom(testEl.root).querySelector('#child2a');
+        el.parentNode.removeChild(el);
+        el = Polymer.dom(testEl.root).querySelector('#shadow2c');
+        el.parentNode.removeChild(el);
+
+        testEl.$.parentFiltered.active = testEl.$.shadow2d.$.resizable;
+
+        testEl.$.parentFiltered.notifyResize();
+        expect(pendingNotifications).to.be.eql(0);
+        RemoveListeners(listeners);
+      });
+    });
+  });
+  </script>
+</body>
+</html>