Siva's blog

Google launched a new testing platform for web Browser. This includes the 5000 Javascript Test for browser. It is like Acid3 Test .Sputnik touches all aspects of the JavaScript language defined in the 3rd edition of the ECMA-262 spec. Testing all the Latest versions of browsers, Opera stands first followed by Safari, Chrome, Mozilla Firefox and lastly IE8.
You can also Test it: http://sputnik.googlelabs.com/run

More info:http://blog.chromium.org/2010/03/does-your-browser-behave.html

Note: This test is not compatabile with old browsers and latest IE9 demo.
I had a older version of Opera 9.27 and tested with it. It hanged up after 50 test.

The same happened with IE9, it crashed after 50 tests.
After updating to latest version 10.10, it is testing .