Ringo - Selenium Automation Framework by Google

I found below link useful for developing automation framework using selenium.

tseng -  based on Google's Ringo now available for public. Link

Presentation slides available in link
Notes from the talk

Design Decisions

• Build common framework
• Isolate Test Case specific details
• Application specific logic kept in client class
• Provide uniform way of accessing UI elements
• Flexibility - Group Test Cases
• Placeholder for configuration data
• Maintainability - Maintaining Data for Testcases
• Support Data Driven Test, Same test run with different sets of data

Architecture

• Tool Selection Criteria - Handle AJAX Controls
• Selenium Locators - Identify element in page
• Testing Framework - TestNG
• Data provider features- Support for Data Driven Testing
• TestNG would handle looping and invoking methods
• Read from XML, Database is supported
• Firebug - Used as Development Tool

Architecture

• Configuration Layer
• UI Layer Abstraction
• Application logic lies in client class
• Uniform way of accessing UI object using helpers
• UI Map - Storing UI Elements
• Data could be shared acrosss Test Cases
• Keep data in one place
• Web Apps Common Action - Filling forms
• Helper class takes page & data object
• For each UI element fill corresponding provided values
• Changes is updating UI & Datamap
• Application Client - Subtree of classes

Application Test

• Contains Test cases, Uses API's provided by client class
• Test Case Flow - Test Case -> Client Class (High level API) -> Helper (Common actions, Wrapper classes using selenium commands)

Yep, Excellent Presentation and lot of Information for building automation framework.

More Reads - Link1, Link2
Selenium - is NOT a Framework
Template method pattern
Selenium 2 Examples
Web test automation best practices
First steps with Lightweight Test Automation Framework
Selenium Framework by Google