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Saturday, March 15, 2014

How to do Web Application Testing?




In this post we will discuss about Web Application testing which are useful for Testing. Also you can check out my previous posts on:

- QuickTest Testing Process

- How to do Web Application Testing?

- Cost Of Defect Repair in Testing

Web Application Testing:
Testing which goes beyond the basic functional and system testing of the computer science world, to include tests for availability, performance/load, scalability, usability, compatibility and links.
- Optimize testing with through risk analysis of the site to identify and prioritize key areas and testing asks.
- Consider interaction between HTML pages TCP/IP communications, internet connections, firewalls, and applications that run on the server side.
- Testing ensures that reliability, accuracy and performance of web based applications, including web services.
- Simulate a live application environment if required.Characteristics of Web app Errors:
- Many types of Web App tests uncover problems evidenced on the client side using as specific interface (e.g., may be an error symptom, not the error itself)
- It is hard to determine weather errors are caused by problems with the server, the client, or the network itself.
- Some errors are attributable to problems in the static operating environment and some are attributable to dynamic operating environment.

Testing Web Apps for Errors:
- Web App content model is reviewed to uncover errors.
- Interface model is reviewed to ensure all use cases are accommodated.
- Design model for Web App is reviewed to uncover navigation errors.
- User Interface is tested to uncover presentation errors and / or navigation mechanics problems.
- Selected functional components are unit tested.
- Navigation throughout the architecture is tested.
- Web App is implemented in a variety of different environmental configurations and the compatibility of Web App with each is assessed.
- Security tests are conducted.
- Performance tests are conducted.

Web Testing Process:
- Content testing: tries to uncover content errors.

- Interface testing: exercises interaction mechanisms and validates aesthetic aspects of user interface.
- Navigation testing: makes use of use-cases in the design of the test cases that exercise each usage scenario against the navigation design.

- Component testing: exercises the web app content and functional units.

- Configuration testing: attempts to cover errors traceable to a specific client or server environment.

Testable Web App interface Mechanisms:
- Links(each link is listed and tested)
- Forms(check labels,field navigation,data entry,error checking,data transmission meaningful error messages)
- Client side scripting(black box and compatibility tests)
- Dynamic HTML(Correctness of generated HTML and compatibility tests)
- Client side pop up windows(Proper size and placement of pop up, working controls,consistent with aesthetic appearance of web page)
- CG I Scripts(black box,data integrity, and performance
testing)
- Cookies
- Application specific interface mechanics.



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