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 | <!-- | 
 | Copyright (C) 2017 The Android Open Source Project | 
 |  | 
 | Licensed under the Apache License, Version 2.0 (the "License"); | 
 | you may not use this file except in compliance with the License. | 
 | You may obtain a copy of the License at | 
 |  | 
 | http://www.apache.org/licenses/LICENSE-2.0 | 
 |  | 
 | Unless required by applicable law or agreed to in writing, software | 
 | distributed under the License is distributed on an "AS IS" BASIS, | 
 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | 
 | See the License for the specific language governing permissions and | 
 | limitations under the License. | 
 | --> | 
 |  | 
 | <meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes"> | 
 | <title>gr-page-nav</title> | 
 |  | 
 | <script src="../../../bower_components/page/page.js"></script> | 
 | <script src="../../../bower_components/webcomponentsjs/webcomponents-lite.min.js"></script> | 
 | <script src="../../../bower_components/web-component-tester/browser.js"></script> | 
 |  | 
 | <link rel="import" href="../../../test/common-test-setup.html"/> | 
 |  | 
 | <link rel="import" href="gr-page-nav.html"> | 
 |  | 
 | <script>void(0);</script> | 
 |  | 
 | <test-fixture id="basic"> | 
 |   <template> | 
 |     <gr-page-nav> | 
 |       <ul> | 
 |         <li>item</li> | 
 |       </ul> | 
 |     </gr-page-nav> | 
 |   </template> | 
 | </test-fixture> | 
 |  | 
 | <script> | 
 |   suite('gr-page-nav tests', () => { | 
 |     let element; | 
 |     let sandbox; | 
 |  | 
 |     setup(() => { | 
 |       sandbox = sinon.sandbox.create(); | 
 |       element = fixture('basic'); | 
 |       flushAsynchronousOperations(); | 
 |     }); | 
 |  | 
 |     teardown(() => { | 
 |       sandbox.restore(); | 
 |     }); | 
 |  | 
 |     test('header is not pinned just below top', () => { | 
 |       sandbox.stub(element, '_getOffsetParent', () => 0); | 
 |       sandbox.stub(element, '_getOffsetTop', () => 10); | 
 |       sandbox.stub(element, '_getScrollY', () => 5); | 
 |       element._handleBodyScroll(); | 
 |       assert.isFalse(element.$.nav.classList.contains('pinned')); | 
 |     }); | 
 |  | 
 |     test('header is pinned when scroll down the page', () => { | 
 |       sandbox.stub(element, '_getOffsetParent', () => 0); | 
 |       sandbox.stub(element, '_getOffsetTop', () => 10); | 
 |       sandbox.stub(element, '_getScrollY', () => 25); | 
 |       window.scrollY = 100; | 
 |       element._handleBodyScroll(); | 
 |       assert.isTrue(element.$.nav.classList.contains('pinned')); | 
 |     }); | 
 |  | 
 |     test('header is not pinned just below top with header set', () => { | 
 |       element._headerHeight = 20; | 
 |       sandbox.stub(element, '_getScrollY', () => 15); | 
 |       window.scrollY = 100; | 
 |       element._handleBodyScroll(); | 
 |       assert.isFalse(element.$.nav.classList.contains('pinned')); | 
 |     }); | 
 |  | 
 |     test('header is pinned when scroll down the page with header set', () => { | 
 |       element._headerHeight = 20; | 
 |       sandbox.stub(element, '_getScrollY', () => 25); | 
 |       window.scrollY = 100; | 
 |       element._handleBodyScroll(); | 
 |       assert.isTrue(element.$.nav.classList.contains('pinned')); | 
 |     }); | 
 |   }); | 
 | </script> |