public void Can_send_ping()
{
var pingbackUri = new Uri("http://localhost:2011/pingback.rem");
var sourceUri = new Uri("http://google.com/a");
var targetUri = new Uri("http://google.com/b");
pingbackService.SendPingback(pingbackUri, sourceUri, targetUri);
Assert.That(FakePingbackService.SourceUri,Is.EqualTo("http://google.com/a"));
Assert.That(FakePingbackService.TargetUri, Is.EqualTo("http://google.com/b"));
}