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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<title>E2E Testing with cypress</title>
<link rel="stylesheet" href="css/reveal.css">
<link rel="stylesheet" href="css/theme/baloise.css">
<!-- Theme used for syntax highlighting of code -->
<link rel="stylesheet" href="lib/css/atom-one-dark.css">
<!-- Printing and PDF exports -->
<script>
var link = document.createElement('link');
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = window.location.search.match(/print-pdf/gi) ? 'css/print/pdf.css' : 'css/print/paper.css';
document.getElementsByTagName('head')[0].appendChild(link);
</script>
</head>
<body>
<div class="reveal">
<div class="slides">
<section class="deck-slide" data-background="img/basel2.jpg">
<h5><span class="header">06.12.2018</span></h5>
<h1><span class="image-heading">E2E Testing with cypress</span></h1>
<h2><span class="sub-header">Joachim Prinzbach & Marco Zirkenbach</span></h2>
</section>
<section data-background="#E5F3F9">
<h2>Agenda</h2>
<ul>
<li>What is cypress</li>
<li>Why another tool?</li>
<li>Drawbacks / Trade-offs</li>
<li>Selenium vs. Cypress</li>
<li>Demo</li>
</ul>
</section>
<section>
<section data-background="img/spencer-watson-382879-unsplash.jpg">
<h2><span class="image-heading">What is cypress?</span></h2>
</section>
<section>
<h3>cypress.io</h3>
<ul>
<li>a tool to test browser based applications</li>
<li>developed and maintained by cypress.io - currently about 13 employees</li>
<li>and... by the open source community</li>
</ul>
</section>
</section>
<section>
<section data-background="img/todd-quackenbush-701-unsplash.jpg">
<h2><span class="image-heading">Why another tool?</span></h2>
</section>
<section>
<h3>Advantages of cypress</h3>
<ul>
<li>no <a href="https://github.com/cypress-io/cypress/blob/develop/LICENSE.md">licence</a> costs (MIT): <a href="https://github.com/cypress-io/cypress">open source</a></li>
<li>great community (9000 stars, 78 contributors)</li>
<li>extremely robust: no need for waits, scrollIntoView, check for visbility, existence... </li>
<li>very fast test execution (in headless mode)</li>
</ul>
</section>
<section data-background="#FFFFFF">
<h3>Advantages of cypress (2)</h3>
<h4>Great testrunner</h4>
<img style="width: 75%" src="img/testrunner.png" alt="">
</section>
<section>
<h3>Advantages of cypress (3)</h3>
<ul>
<li>testrunner is awesome for finding selectors, debugging, time travelling or simply watching your tests run</li>
<li>cypress is independent from any web frameworks -> works with every webapp</li>
<li><a href="https://docs.cypress.io/guides/guides/screenshots-and-videos.html#Screenshots">can create screenshots or videos</a></li>
<li><a href="https://docs.cypress.io/guides/guides/continuous-integration.html#What-is-supported">runs on ci</a></li>
</ul>
</section>
<section>
<h3>Advantages of cypress (4)</h3>
<h4>Stubbing network requests</h4>
<pre>
<code class="hljs typescript" data-trim contenteditable>
cy.server();
cy.route({
method: 'GET',
url: '/api/message/**',
status: 404,
response: {}
});
cy.get('#openMessage').click();
cy.get('#notFoundErrorToast').should('exist');
cy.server({enable: false});
cy.get('#openMessage').click();
cy.get('#notFoundErrorToast').should('not.exist');
</code>
</pre>
</section>
<section>
<h3>Advantages of cypress (5)</h3>
<h4>Easy to write tests, in JavaScript or TypeScript</h4>
<pre>
<code class="hljs typescript" data-trim contenteditable>
describe('the login', () => {
it('should work for a dummy user', () => {
cy.visit('myUrl');
cy.get('#uNameInput').type('dummy');
cy.get('#pwInput').type('dummyPw');
cy.get('#btnSubmit').click();
cy.get('#customerMenu').click();
});
});
</code>
</pre>
</section>
<section>
<h3>Usage of page object pattern</h3>
<pre>
<code class="hljs typescript" data-trim contenteditable>
it('should go through in german', () => {
const firstPage = app.start()
.validateInfotext()
.clickNext()
.validateRequiredValildationsWorking()
.fillRestOfForm();
const secondPage = firstPage.proceedToNextPage()
.clickNext()
.validateRequiredErrors()
.enterStreetAndNumber()
.enterEmail()
.enterPhoneNumber();
});
</code>
</pre>
</section>
</section>
<section>
<section data-background="img/alex-140654-unsplash.jpg">
<h2><span class="image-heading">Drawbacks / Trade-offs</span></h2>
</section>
<section>
<h3>Browser and CI support</h3>
<ul>
<li>Currently only chromium based browsers are supported - others are <a href="https://github.com/cypress-io/cypress/issues/310">in progress</a></li>
<li>needs <a href="https://docs.cypress.io/guides/guides/continuous-integration.html#Dependencies">some packages</a> to run in linux nodes</li>
<li>there won't be a support for <a href="https://docs.cypress.io/guides/references/trade-offs.html#Multiple-tabs">multiple tabs</a></li>
</ul>
</section>
<section>
<h3>What cypress is not designed for</h3>
<ul>
<li>performance testing</li>
<li>testing 3rd party sites that you do not control</li>
<li>indexing the web -> crawling</li>
<li>Testing non browser based apps</li>
</ul>
</section>
</section>
<section>
<section data-background="img/richard-lee-788052-unsplash.jpg">
<h2><span class="image-heading">Selenium vs. Cypress</span></h2>
</section>
<section>
<h2>Daniel N: <span style="font-style: italic">"Selenium by itself is pretty dumb - you need to write waits"</span></h2>
</section>
<section></section>
</section>
<section>
<section data-background="img/danny-howe-762860-unsplash.jpg">
<h2><span class="image-heading">Live Demo</span></h2>
</section>
</section>
<section class="deck-slide" data-background="img/basel1.jpg">
<h1><span class="image-heading questions">Any questions?</span></h1>
<h2 class="major"><span class="sub-header">Find the slides: <a href="http://bit.ly/talk-cypress">http://bit.ly/talk-cypress</a></span></h2>
<h2 class="minor"><span class="sub-header">Images from Unsplash: <a href="http://bit.ly/cypress-images">http://bit.ly/cypress-images</a></span></h2>
</section>
</div>
</div>
<script src="lib/js/head.min.js"></script>
<script src="js/reveal.js"></script>
<script>
// More info https://github.com/hakimel/reveal.js#configuration
Reveal.initialize({
history: true,
// More info https://github.com/hakimel/reveal.js#dependencies
dependencies: [
{src: 'plugin/markdown/marked.js'},
{src: 'plugin/markdown/markdown.js'},
{src: 'plugin/notes/notes.js', async: true},
{
src: 'plugin/highlight/highlight.js', async: true, callback: function () {
hljs.initHighlightingOnLoad();
}
}
]
});
</script>
</body>
</html>