public void GivenAJoinAction_ThenTheResponseContainsAGatherVerb()
{
var controller = new ConferenceController {
Url = Url
};
var result = controller.Join();
result.ExecuteResult(MockControllerContext.Object);
var document = BuildDocument();
Assert.That(document.SelectSingleNode("Response/Gather").Attributes["action"].Value,
Is.EqualTo("/Conference/Connect"));
}