The document provides a comprehensive guide on configuring Jasmine and Karma for Node.js testing, emphasizing Karma's role in facilitating test-driven development across multiple browsers. It outlines the prerequisites, necessary installations, and configuration steps to set up a Node project with Karma and Jasmine, while explaining the purpose of each component involved. Additionally, it describes the file structure and commands needed to run the tests effectively.

1. CONFIGURE JASMINE AND KARMA
NODE.JS

2. WHY KARMA?
 A simple tool that allows you to execute JavaScript code in multiple real browsers
 Karma is to make your test-driven development easy, fast, and fun
 Test code in multiple browsers (desktop, mobile, tablets, etc.)
 Execute your tests locally during development
 Execute your tests on a continuous integration server
 Execute your tests on every save
 Uses Istanbul to automagically generate coverage reports

3. WHY TESTING FRAMEWORK NEEDED?
 Karma is not a testing framework, nor an assertion library
 Karma just launches an HTTP server, and generates the test runner HTML file
 Available Javascript Testing framework plugin
 Jasmine
 Mocha
 Qunit

4. PRE-REQUISITE - INSTALL NODE.JS AND NPM
 Open - https://nodejs.org/en/download/ and select appropriate operating system (Windows for demo)
 It starts downloading the exe file, open it once it finishes downloading
 Complete the installation wizard and verify the installation

5. CREATE NEW NODE PROJECT
 Command –
 npm init
 It creates new node project
along with package.json file

6. INSTALL KARMA
 Command –
 npm install karma –save-dev
 npm install requirejs --save-dev
 npm install karma-requirejs --save-dev
 It adds new karma and require dev dependency in package.json

7. INSTALL JASMINE AND KARMA CHROME LAUNCHER
 Command –
 npm install jasmine-core karma karma-chrome-launcher --save-dev
 npm install karma-jasmine karma-jasmine-html-reporter karma-spec-reporter --save-dev
 It adds new dependencies in package.json

8. CONFIGURE KARMA
 Command –
 npm install -g karma-cli
 karma init karma.conf.js
 It will install karma cli globally, new
dependencies in package.json
 Run Karma simply by “karma” from
anywhere and it will always run the local
version
 The configuration file can be generated
using karma init

9. DEPENDENCIES IN PACKAGE.JSON

10. KARMA.CONF.JS

11. RUN KARMA
 Command –
 karma start karma.conf.js
 Run Karma simply by “karma” from
anywhere and it will always run the local
version

12. FILE STRUCTURE
Spec Folder –
It contains all the test file
Src Folder –
It contains all the source
files
package.json file –
file in the app root defines
what libraries will be
installed into
node_modules when you
run npm install
Node Modules –
Directory is only for build tools
Karma.conf –
It contains Karma related
configuration
package-lock.json–
automatically generated for
any operations where npm
modifies either the
node_modules tree

13. SAMPLE SRC FILE AND SPEC FILE

14. KARMA RESULTS

15. CODE COVERAGE RESULTS

16. THANK YOU