public void IdleNavigation_WhenNothingHappening_ProceedsAtOnce()
{
var browser = new BrowserStub();
string target = "http://any old web address";
var isolator = new NavigationIsolator();
Assert.That(isolator.NavigateIfIdle(browser, target), Is.True);
Assert.That(browser.NavigateTarget, Is.EqualTo(target));
browser.NormalTermination();
Assert.That(browser.EventHandlerCount, Is.EqualTo(0), "event handlers should be removed after navigation completes");
}