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<!DOCTYPE html>
<!--
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.
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limitations under the License.
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<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>