mock a static function

[Deleted user]

Drew

Is there a way to mock out a Singleton instance? I have the following pretty stock Flex URLParser and need to test the logic of parsing the URL.

public class MainPresenter
{
public var browserManager:IBrowserManager;

    public function setIntialView():void
    {
        browserManager = BrowserManager.getInstance();
        browserManager.init();
        var object:Object = URLUtil.stringToObject(browserManager.fragment,"&");

}

Problem I hit is at the "getInstance" line, a new browserManager is set and the mock I do is cleared. I do not know if it is possible to mock static classes, specifically the BrowserManager & URLUtil classes. If I can mock them, then I can control the result.

Thanks
Des

[drewbourne]

Inject the IBrowserManager instance to your MainPresenter instead of getting it via BrowserManager.getInstance(). In testing inject a mocked IBrowserManager, and in your application setup inject the instance from BrowserManager.getInstance().

Mockolate will quite happily mock the IBrowserManager interface. Static functions cannot be mocked, see limitations and gotchas. If you would like an explanation why, ask and I will put it up on the site.