Is there any Google Analytics testing/sandbox environment for testing your JS custom code before putting it to live system?
I don't want to use my real tracking ID to see if everything is correct on my dev. environment, neither I want to put my code untested live...
Is there any techniques or maybe some fake Analytics tracking lib I could use for testing?
I believe it is possible, but you have to tell it to not use the domain when setting the cookie...
var pageTracker = _gat._getTracker("UA-12345-1");
pageTracker._setDomainName("none");
pageTracker._trackPageview();
And you probably have to use a legitimate tracker ID.
Also, be sure to see Analytics Customizations: Using a Local Server