Browser Automation Testing with Headless Chrome

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Derek Binkley - @DerekB_WI Browser Automation Testing with Headless Chrome

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Derek Binkley - @DerekB_WI Is anybody there?

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Derek Binkley - @DerekB_WI Who Am I? • Derek Binkley • Senior Engineer, TurnTo Networks • Married, 2 daughters, 1 son

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Derek Binkley - @DerekB_WI Who Are You? • JavaScript? • QA? • Selenium? • DevOps?

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Derek Binkley - @DerekB_WI What are we doing? • Automate a Browser • Try a site like a user • Validate Functionality

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Derek Binkley - @DerekB_WI Headless Chrome • Introduced June 2017 • Full Browser • No GUI • Controlled by Node library (Puppeteer)

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Derek Binkley - @DerekB_WI Headless Chrome to replace PhantomJS

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Derek Binkley - @DerekB_WI Selenium v. Headless Chrome • Won’t replace selenium • Selenium complex and powerful • Chrome - single browser testing • Different uses

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Derek Binkley - @DerekB_WI Why? • Reliability • Dependability • Sleep better after an update • In addition to other tests

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Derek Binkley - @DerekB_WI Components • Using Node • Puppeteer - give us Chrome • Mocha - Runs Test • Chai - Provides assertions

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Derek Binkley - @DerekB_WI Setup Script • package.json

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Derek Binkley - @DerekB_WI Let’s try it

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Derek Binkley - @DerekB_WI

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Derek Binkley - @DerekB_WI •Assemble •Act •Assert

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Derek Binkley - @DerekB_WI Imports

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Derek Binkley - @DerekB_WI Define

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Derek Binkley - @DerekB_WI Setup

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Derek Binkley - @DerekB_WI Tear down

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Derek Binkley - @DerekB_WI The Assertion

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Derek Binkley - @DerekB_WI click()

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Derek Binkley - @DerekB_WI Class change

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Derek Binkley - @DerekB_WI screenshot()

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Derek Binkley - @DerekB_WI

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Derek Binkley - @DerekB_WI this.currentTest.state

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Derek Binkley - @DerekB_WI pdf()

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Derek Binkley - @DerekB_WI PDF options • https://github.com/GoogleChrome/puppeteer/blob/master/docs/ api.md#pagepdfoptions

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Derek Binkley - @DerekB_WI

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Derek Binkley - @DerekB_WI type()

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Derek Binkley - @DerekB_WI Click the button

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Derek Binkley - @DerekB_WI The assertion

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Derek Binkley - @DerekB_WI hover()

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Derek Binkley - @DerekB_WI getComputedStyle()

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Derek Binkley - @DerekB_WI RGB value

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Derek Binkley - @DerekB_WI setViewport()

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Derek Binkley - @DerekB_WI Resolution?

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Derek Binkley - @DerekB_WI emulate()

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Derek Binkley - @DerekB_WI Visibility

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Derek Binkley - @DerekB_WI Sessions

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Derek Binkley - @DerekB_WI waitForNavigation()

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Derek Binkley - @DerekB_WI

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Derek Binkley - @DerekB_WI I failed :(

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Derek Binkley - @DerekB_WI Page Interactions • page.focus(‘#myselector’) • page.mouse.move(x, y, [options]) • page.mouse.click(x, y, [options]) • page.keyboard.press(‘Tab’) • page.touchscreen.tap(x, y)

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Derek Binkley - @DerekB_WI Resources • https://developers.google.com/web/updates/2017/06/headless-karma-mocha-chai • https://medium.com/@ankit_m/ui-testing-with-puppeteer-and-mocha-part-1-getting-started- b141b2f9e21 • https://github.com/GoogleChrome/puppeteer • https://github.com/checkly/puppeteer-examples • https://puppeteersandbox.com/ • https://groups.google.com/forum/m/#!topic/phantomjs/9aI5d-LDuNE • https://medium.com/@kensoh/chromeless-chrominator-chromy-navalia-lambdium-ghostjs- autogcd-ef34bcd26907

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Derek Binkley - @DerekB_WI Resources • https://gist.github.com/mrmoses/6a40744b91c4fe999cb04f6325779ad9 • https://blog.logrocket.com/a-quick-and-complete-guide-to-mocha- testing-d0e0ea09f09d • https://about.gitlab.com/2017/12/19/moving-to-headless-chrome/ • https://github.com/nesk/puphpeteer • http://mickadoo.github.io/php,phpunit,chrome,testing/2017/10/08/ php-tests-using-headless-chrome.html