Writing an extensible web testing framework ready for the cloud slide share

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Presentation given at GR8Conf in Copenhagen, Denmark on May 22nd, 2013

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1.Writing an Extensible Web TestingFramework ready for the CloudPresented by Mike Ensor May 22, 2013 Presented at GR8Conf in Copenhagen Denmark2. 2013 Acquity Group, LLC. All rights reserved.Introductions2 What is this talk about? Curious about automated browser testing Testing a Reference application and/or SaaS Expanding Gebs inheritance model Who is Mike!? Developing software for 16+ years Started working with Groovy and Grails in 2007 Attended GR8Conf last year Acquity Group Blending strategy, creative and technology Currently a principal architect; Intershop and Demandware platform Introduced Geb and Spock to Demandware practice 3. 2013 Acquity Group, LLC. All rights reserved.Useful Links3Demandware testing framework http://mikeensor.bitbucket.org/demandware-testing-frameworkSpock feature override extension https://github.com/mike-ensor/spock-feature-override-extensionPresentation http://www.slideshare.net/MikeEnsor/Twitter @mikeensor http://www.twitter.com/mikeensorBlog http://www.ensor.cc 4. Web Testing 5. 2013 Acquity Group, LLC. All rights reserved.Why Test?5RaiseConfidenceSafety NetProveFunctionalityEnsureQualityLower Costs 6. 2013 Acquity Group, LLC. All rights reserved.Cost Savings6$0$1,000$2,000$3,000$4,000$5,000$6,000Developer Unit Tests IntegrationTestsEnvironmentCost per DefectAvg CostGoogle Study presented at XP Days London 2009 Mark Streibeck, Google Inc 7. 2013 Acquity Group, LLC. All rights reserved.SaaS AccessAcceptanceFunctionalIntegrationUnit testsLevels of Testing7ComplexityQuantity 8. 2013 Acquity Group, LLC. All rights reserved.History of Web TestingManualClickTestingTimeconsumingError proneScreenScrapeCustomscriptsMaintenancenightmareHTTPUnitDoes notwork withJavaScriptTests HTMLstructureonlyCanooWebTestDevelopingin XML*DuplicatecodeSeleniumRCCut-Copy-Paste scriptsDuplicationof codeMousedrivenWebDriverVery lowlevelframeworkEasy tocreate brittletestsGebAbstractionon top ofWebDriverDesigned forcode reuse8 9. 2013 Acquity Group, LLC. All rights reserved.What is Geb?9 Groovy based abstraction of Selenium Web Driver withjQuery-like syntax for content selection Designed for robust yet simplistic syntax Simplified DSL describing Pages and Modules Words like url content base at Created with DRY principal in mind Use of highly configurable reusable modules Abstraction of WebDrivers Page Model 10. 2013 Acquity Group, LLC. All rights reserved.Geb Core10PageObjectsModulesGeb 11. 2013 Acquity Group, LLC. All rights reserved.Page Objects11 What is a Page? Object representing a generic type ofwebpage on a site Domain Specific Language url - Appended to configurable baseUrl Assists in navigating to page at closure used to determine if browseris at the page content Variables representing page contentwith CSS selectorsclass HomePage extends Page {static url = "default/Home-Show"static at = {title.trim() == "Welcome"}static content = {pageTitle {$("header h1.title")}}}...Main Page Title... 12. 2013 Acquity Group, LLC. All rights reserved.Building multiple Pages12class HomePage extends Page {static url = "default/Home-Show"static at = {title.trim() == "Welcome"}static content = {companyTitle {$("header h1.title")}footerCopywrite {$("footer span.copy")}}}class ProductPage extends Page {static url = "default/Product-Show"static at = {title.trim() == "Products"}static content = {companyTitle {$("header h1.title")}footerCopywrite {$("footer span.copy")}productTitle {$("#product h2.title")}}} 13. 2013 Acquity Group, LLC. All rights reserved.Code Duplication13 14. 2013 Acquity Group, LLC. All rights reserved.Dangers of Code Duplication14 Small change in underlying structure = many changes Long sections of nearly identical code Conceal purpose of code File size Code Maintenance 15. 2013 Acquity Group, LLC. All rights reserved.Modules15 What is a Module? Re-usable encapsulationconsisting of content references Domain Specific Language base Optional content closure acting as abase to start content selection content Variables representing page contentwith CSS selectors, optionallyoriginating from base closureclass HeaderModule extends Module {static base = { $("header") }static content = {companyTitle {$("h1.title")}login { $("a.login") }}}...Page TitleLogin... 16. 2013 Acquity Group, LLC. All rights reserved.Geb: Pages + Modules16class HomePage extends Page {static url = "default/Home-Show"static at = { title.trim() == "Welcome" }static content = {footer { module FooterModule }header { module HeaderModule }}}class ProductPage extends Page {static url = "default/Product-Show"static at = { title.trim() == "Products" }static content = {productTitle { $("#product h2.title") }footer { module FooterModule }header { module HeaderModule }}}class HeaderModule extends Module {static base = { $("header") }static content = {companyTitle { $("h1.title") }login { $("a.login") }}} 17. 2013 Acquity Group, LLC. All rights reserved.Now what?17Not Logged In Logged In 18. Extending Geb Objects 19. 2013 Acquity Group, LLC. All rights reserved.ScenarioYour Mission:You have been asked to create a special Product page for when a customer has logged inThe page looks and functions exactly like the Product page, but has an extra header19 20. 2013 Acquity Group, LLC. All rights reserved.Extending Page Objects20 Extend our page object Re-define url, and at Inherits content Overwrite/add contentelementsclass PersonalProductPage extends ProductPage {static url = "default/MyProduct-Show"static at = { title.trim() == "Personalized" }static content = {// header inherited from HomePage// footer inherited from HomePageproductTitle {$("section#personal h2.title")}}} 21. 2013 Acquity Group, LLC. All rights reserved. Extend module object Re-define base Inherits content Overwrite/add contentelementsExtending Modules Objects21class AuthHeaderModule extends HeaderModule {static base = { $("header section#personal") }static content = {// companyTitle inherited from HeaderModule// login inherited from HeaderModulelogout { $("a.logout") }}} 22. 2013 Acquity Group, LLC. All rights reserved.Drawbacks & Best Practices Watch out for Overriding content segments happen at runtime No name spacing Possible to unintentionally overwrite content Possible solutions Document well (use JavaDoc style comments) API Groovy Doc Write a test to explicitly prove the inheritance Tests should fail if the inheritance fails Subscribe to user@geb.codehaus.org22 23. 2013 Acquity Group, LLC. All rights reserved.With great powercomes great responsibility -- Uncle Ben23 24. Using Geb with Spock 25. 2013 Acquity Group, LLC. All rights reserved.Spock Specification based testing framework designed to describethe intention of the test in business friendly terms Provides keywords for structure when Action then Expectation Geb provides GebReportingSpec Can be extended to change functionality Provides extension model Control specification lifecycle25 26. 2013 Acquity Group, LLC. All rights reserved.Creating a Specification Extend GebReportingSpec Describe a feature aka - Test method Browse to Verify at Verify content Defined in ProductPage Verify module content Defined inHeaderModule26class ProductPageSpec extends GebReportingSpec {def "user can view the product page"() {given:to ProductPageexpect:at ProductPageand:productTitle.text() == "My Cool Product"and:header.companyTitle.text() == "Company X"}} 27. Extensible Web Testing 28. 2013 Acquity Group, LLC. All rights reserved.ScenarioYour Mission:You work on a SaaS platform where each implementation is very similar in features and structure.Design a testing framework where you can leverage common functionality inherent in allimplementations of the SaaS platform.28ReferenceApplication Implementation Size & Color Filters Breadcrumbs Category Navigation Mini-Cart Wish List 3-in-row Product Grid Size & Color Filters Breadcrumbs Category Navigation Mini-Cart Wish List 4-in-row Product Grid 29. 2013 Acquity Group, LLC. All rights reserved.Common Functionality: Reference Application29Category FilterColor RefinementSize RefinementMini-CartWish ListBreadcrumbsPaginationPrice Refinement 30. 2013 Acquity Group, LLC. All rights reserved.Common Functionality: Implementation Application30Category FilterPriceRefinementColorRefinementMini-CartWish ListBreadcrumbsPagination 31. 2013 Acquity Group, LLC. All rights reserved.Inheriting Test Functionality Add dependency onReference Apps Test JAR Extend target specification Inherits all features fromparent specification Foresee problems? Overwrite inheritedfeatures? Use derived Page objects? Investigate these one-by-one31class HomePgSpec extends GebReportingSpec {def "user can view the home page"() {// trimmed for claritygiven:to HomePage}def "user can login"() {// omitted for simplicity}}class ClientPageSpec extends HomePgSpec {// Inherit "user can view the home page & "user can login"def "user can open wishlist"() {// trimmed for claritygiven:to ClientHomePage}} 32. 2013 Acquity Group, LLC. All rights reserved.Inheriting Test Functionality: First Run32class HomePgSpec extends GebReportingSpec {def "user can view the home page"() {given:to HomePagewhen:header.login.click()then:at MyAccountPage}def "user can login"() { /*obmitted for clarity*/ }}class ClientPageSpec extends HomePgSpec {def "user can open wishlist"() {given:to ClientHomePage}} Run ClientPageSpec Spock determines list of features user can view the home page user can login user can open wishlist Run user can view the home page Navigate to HomePage ???? 33. 2013 Acquity Group, LLC. All rights reserved.Plan: overwrite inherited features Look for a feature in the parentclass with the same name Replace the inherited featurewith the provided feature Utilize Spock Extension featuresto modify test execution33class ClientPageSpec extends HomePgSpec {def "user can login"() {given:to ClientHomePagewhen:header.login.click()then:at ClientMyAccountPage}def "user can open wishlist"() {// omitted for clarity}} 34. 2013 Acquity Group, LLC. All rights reserved.Spock ExtensionsAdd runtimefunctionalityImplements VisitorPattern Allow for modifications to theSpecification feature sequenceIgnore inheritedfeatures if implementedin ChildTriggered by Annotation @OverrideFeatures34 35. 2013 Acquity Group, LLC. All rights reserved.Overwrite Inherited Features Look for a feature in the Parentclass with the same name Create a marker @Annotation Tell Spock to use this feature, notthe Parent by using a SpockExtension spock-feature-override-extension Open Sourced on github35@OverrideFeaturesclass ClientPageSpec extends HomePgSpec {def "user can login"() {given:to ClientHomePagewhen:header.login.click()then:at ClientMyAccountPage}def "user can open wishlist"() {// omitted for clarity}} 36. 2013 Acquity Group, LLC. All rights reserved.Now what? Able to override inherited features Override every feature? Why inherit?36class HomePage extends Page {static url = "default/Home-Show"static at = {title.trim() == "Welcome"}static content = {header { module HeaderModule }footer { module FooterModule }}}class ClientHomePage extends HomePage {static url = "default/Home-Show"static at = {title.trim() == "Company Home"}static content = {nav { module NavigationModule }}} What do we want? Dynamically swap sub-classed Pageobjects 37. 2013 Acquity Group, LLC. All rights reserved.Dynamically Swap Page Objects Page objects are managed by Browsers in Geb Extend existing Browser Create a Browser that knows about Page object relationships37geb.Browser---------------------------------------------Browser()Page at(Class

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