Dimitris Mitsis - Automated tests with CodeCeption - WordCamp Athens 2016

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#wcAth2016 Δημήτρης Μήτσης Αυτοματοποιημένα test με το CodeCeption

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Δημήτρης Μήτσης WPML DEVELOPMENT • QUALITY ASSURANCE • PERFORMANCE TESTING

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AUTOMATED TESTING • Use of special software to compare the actual output of an application with the one we expect

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Manual tests Integration tests Unit Tests

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NEEDS FOR AUTOMATED TESTING • Expedite procedure of quality control • Quick releases • Integration with WordPress • Integration with 3rd party plugins

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UNIT-TEST • TEST DRIVEN DEVELOPMENT (TDD) • PHPUnit Unit testing: tests if specific parts of the application output the expected result for a given input

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BENEFITS OF UNIT-TESTS • Enforce coding standards • Full awareness of the stack-trace Avoid phrases like: “Works but I don’t know why” White-box testing

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2 UnitTests – 0 Integration tests

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• Avoid regressions (re-appearance of the same bug) • Ensure that existing functionality remains • Frequency of updates SIMPLE NEEDS FOR AUTOMATED TESTING

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UPDATES FOR WP SEO, WC & WP IN 2016

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BEST COFFEE OF YOUR WEEK

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CODECEPTION • Testing framework for PHP applications • Easy and simple to use • Modular and extensible • Promotes design patterns

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Unit Tester The geek! Knows the application inside- out Functional Tester The tester who understands the application but has access to the interface too Acceptance Tester The user which can only test what he sees in the screen CODECEPTION Black box testing Grey box testing White box testing Integration tests

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INSTALLATION OF CODECEPTION Requirements • Selenium Standalone • WordPress (website) (locally or in server) • Browser • Composer • Phar αρχείο (executable) Installation

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CODECEPTION – BOOTSTRAP $ wget http://codeception.com/codecept.phar $ php codecept.phar bootstrap

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CODECEPTION – MANUAL TEST STEPS • Create a test product • View product in the front-end • Add product to cart • Continue with checkout

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CODECEPTION – GENERATE TEST $ php codecept.phar generate:cept acceptance WooCommerceBasic /tests/acceptance/WooCommerceBasicCept.php

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EMPTY CEST $ codeception.com/docs/06-ModulesAndHelpers#hooks

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CODECEPTION – BOOTSTRAP

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CODECEPTION –

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CODECEPTION –

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CODECEPTION – $

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CODECEPTION –

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php codecept.phar run acceptance --steps java -jar selenium-standalone.jar

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CODECEPTION – LOCATORS • CSS ID  click(“#css-id”) • CSS CLASS  click(“.css-class”) • TEXT  click(“Text”) • xPath  click(“//div[@xpath]”) Firebug and FirePath are your friends

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CODECEPTION & SELENIUM IDE Two Firefox Add-ons • SeleniumIDE • CodeCeption Formatters

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CODECEPTION HELPERS tests/_support/ΑcceptanceTester.php

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CODECEPTION Remember to build after editing this file! php codecept.phar build

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CODECEPTION

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CODECEPTION – DESIGN PATTERNS Page Objects & Step Objects • Each PageObject emphasizes only on one page and its elements. • Each StepObject emphasizes on similar recurring steps

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CODECEPTION – PAGE OBJECTS • Locators are defined • Common steps associated to one page are also defined in the PageObejct • They make tests easier to read

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CODECEPTION php codecept.phar generate:pageobject EditProductPage

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CODECEPTION

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CODECEPTION

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Q & A

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THAT’S IT! HAPPY TESTING  TINYURL.COM/

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CODECEPTION – LINKS

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CODECEPTION – TIPS Link $I->click( “#start_now” );

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CODECEPTION – TIPS

// => Somewhere in the DOM.. //div => ...there is a ...

... //div[ ] => ...and it has attributes... //div[ @data-slug=’our_plugin’ ]