Web Application Testing

While testing a web application you need to consider following Cases:

• Functionality Testing
• Performance Testing
• Usability Testing
• Server Side Interface
• Client Side Compatibility
• Security
Functionality:
In testing the functionality of the web sites the following should be tested:
• Links
i. Internal Links
ii. External Links
iii. Mail Links-have underline for mailid
iv. Broken Links-use web link validator tool for broken link finding and reporting
• Forms
i. Field validation-(javascript,jquery)
ii. Error message for wrong input-with colour red
iii. Optional and Mandatory fields
• Database
* Testing will be done on the database integrity.
• Cookies
* Testing will be done on the client system side, on the temporary Internet files.Delete the cookie and check whether application still in  login.After deleted cookie site user must gets logged out
Performance :
Performance testing can be applied to understand the web site’s scalability
• Load:-for this use load testing tools(load runner)
i. What is the no. of users per time?
ii. Check for peak loads and how system behaves
iii. Large amount of data accessed by user
• Stress:
i. Continuous Load
ii. Performance of memory, CPU, file handling etc..
Usability:
Usability testing is the process by which the human-computer interaction characteristics of a system are measured, and weaknesses are identified for correction.
• Ease of learning
• Navigation
• Subjective user satisfaction
• General appearance
Server Side Interface:
In web testing the server side interface should be tested. This is done by verify that communication is done properly. Compatibility of server with software, hardware, network and database should be tested.
Client Side Compatibility:
The client side compatibility is also tested in various platforms, using various browsers etc.
Security:
The primary reason for testing the security of a web is to identify potential vulnerabilities and subsequently repair them.
• Network Scanning
• Vulnerability Scanning
• Password Cracking
• Log Review
• Integrity Checkers
• Virus Detection