Why doesn't HtmlUnitDriver execute JavaScript?
You can enable JavaScript by doing either
new HtmlUnitDriver(true);driver.setJavascriptEnabled(true);
What you need to do is to wait until the JavaScript is executed after get(url).
You can use Thread.sleep() method for adding some delay.
HtmlUnitDriver driver = new HtmlUnitDriver(BrowserVersion.FIREFOX_3_6);driver.setJavascriptEnabled(true);driver.get(url);Thread.sleep(100);runTest();Update
As @Corey indicated in the comments, it could be nicer to use Explicit and Implicit Waits instead of Thread.sleep(). As I don't use them these days, I cannot confirm, though. It would be great if someone test them and update this answer.
If you wish to set the BrowserVersion as well as enable Javascript with HtmlUnitDriver, your initialization needs to look like the following (as there is no way to do both via the constructor):
HtmlUnitDriver driver = new HtmlUnitDriver(BrowserVersion.FIREFOX_3_6);driver.setJavascriptEnabled(true);This will allow you to use the browser definition of your choice and use Javascript.