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TDD-Using Karma and Jasmine

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Copyright © 2015. Cybage Software Pvt. Ltd. All Rights Reserved. Cybage Confidential..

Agenda

• What is TDD?

• Why ?

• How to do TDD?

• Code Demo

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What is TDD?

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automated tools.1-verifying that your code does what it

is expected to do with automated tools.

1-verifying that your code does what it is expected to do with automated tools

• Verifying that your code does what it is expected to do, with automated tools.

• TDD is software development process that encourages writing failing automated test case then produce the minimum amount of code required to pass that test and optionally followed by refactoring code.

• TDD helps design our code, it helps in documentation of code as well

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Red Green Blue Factor

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Why ?

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• Enhances the code maintainability for further changes in code base as well as test case.

• Provides immediate feedback for any change in code .

• Test coverage score is high in case of test First.

• Provides the facility of breaking the negative feedback of increased defects.

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How to do TDD?

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Tools required

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• karma/protractor –java script test runner that integrates with a number of browsers.

• jasmine version(provides better documentation ): 2.0 or qunit and sin on.

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Jasmine

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• It have Suits and Specs

• Pre Defined Matchers –toBe,toBeDefined ,toBeFalsy

• SetUp-In beforeEach prerequisites can be defined, afterEach and it also used .

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• Number of facilities like spyOn which Jasmine has test double functions called spies

• A spy can stub any function and tracks calls to it and all arguments. A spy only exists in the describe or it)

• Dependency Injections , Services like $timeout ,$window,$location

• Async Suport –Use WaitsFor and runs

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Code Demo

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Some References

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• http://www.slideshare.net/cebartling/javascript-tdd-with-jasmine-and-karma

• https://blog.logentries.com/2015/01/unit-testing-with-karma-and-jasmine-for-angularjs/

• http://jsfiddle.net/B72tr

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