1. Stable and reliable Web Automation
- Narayan Raman

2. The Goal Reduce testing effort Automate things that can be automated
Tests should be
Repeatable (Reliable)
Maintainable
Fast

3. Web Technologies AJAX Web 2.0 Highly dynamic applications
Lots of frameworks
Newer, powerful browsers
HTML5

4. Breaking down Automation
Object Identification
Handling Asynchronicity
Event Simulation
Reporting
Playback time optimization

5. Object Identification
Present methods
Id, name
Xpath
Css-selector
Xpath and Css-selectors are brittle
Too dependent on programmatic structure
Require programmatic knowledge

6. Better Object Identification
Business logic changes less than code
Business drives User Interface
UI Relations
_image(“plus.gif”, _near(_div(“My Documents”)))
_textbox(0, _near(_label("Loan Amount")))
_cell(0, _near(“Ram”), _under(“Loan Amount”))
More stable

7. Asynchronicity Waits needed for Hard coded waits Conditional waits
Page loads
Frame/iframe loads
AJAX request completion
Javascript timeout triggers
Hard coded waits
Wasteful
Conditional waits
Complicated
Tool should handle time outs automatically

8. Maintainable Easy to create scripts Easy to debug scripts
Good recorders on all browsers
Object Spy
Easy to debug scripts
Real time debugging to examine state of web page
Good reporting
Work across browsers and operating systems

9. Fast Execution Execute tests in parallel Spread tests across machines
Some Browsers allow separation of cookies across instances
Spread tests across machines
Limit hard coded waits
Use fast accessors
Xpaths are very slow on IE

10. Sahi http://sahi.co.in Open source tool Sahi Pro – Commercial offering
Tester friendly
Light weight and scalable

11. Q&A
V Narayan Raman