TEST DRIVENDEVELOPMENT

IN JAVASCRIPTPresented by Asutosh Dash

KEY BENEFITS OF TDDYAGNI You aren't gonna need itIt's an extreme programming methodology which is intendedto improve software quality

DRY Don't repeat yourselfSOLID Principles

BDDFeature driven approach to TDD

FEATURE DRIVEN APPROACH TO TDDWrite a test (Defining desired behaviors of the program)Write as much as code to make the test pass(implement thebehaviour)Refactor the codeTest again (Verify phase)

JASMINETo do BDD in JavaScriptCapability of test suite and test casesMocking capabilities are excellentSpying a function/methodIt does not require HTML/DOMRunning Jasmine (through Maven [Jasmine MavenPlugin]/Grunt [grunt jasmine]).

KARMA - TEST RUNNERCreates HTTP server to run your tests localy.Test your code on real browsers (Chrome. Safari, Firefox andIE)Can be easily integrated with AngularJs, BackboneJs, Emberjs,ReactJsHave good support for IDE WebStorm

KARMA CONFIGURATIONmodule.exports=function(config){ config.set({ frameworks:['jasmine'], files:['scripts/*.js','tests/*.js'], reporters: ['progress', 'coverage'], preprocessors:{ 'scripts/*.js':['coverage'] }, coverageReporter: { type : 'html', dir : 'coverage/' } }); };

ISATNBULA JS code coverage tool

Can run in command line and as well as libraryReport format: HTML, LCOV and CoberturaWell tested in node

RESOURCESJasmine Projectkarma RunnerIstanbul

THANK YOUBY ASUTOSH DASH