public void cannot_set_wpf_gui_thread_twice()
{
var guiThreadProvider = new Mock <IGuiThreadProvider>();
var guiChanged = new WpfGuiChangedMessage(guiThreadProvider.Object);
_eventAggregator.Publish(guiChanged);
Assert.Throws <InvalidOperationException>(() => _eventAggregator.Publish(guiChanged),
"Cannot set wpf gui thread twice!");
}
public void wpf_gui_changed_supported_by_eventaggregator()
{
var guiThreadProvider = new Mock <IGuiThreadProvider>();
var guiChanged = new WpfGuiChangedMessage(guiThreadProvider.Object);
_eventAggregator.Publish(guiChanged);
_eventAggregator.Subscribe <NullMessage>((x) => { }, DeliveryMethod.GuiThread);
_eventAggregator.Publish(new NullMessage());
// verify that publish executed in gui thread
guiThreadProvider.Verify(x => x.RunInGui(It.IsAny <Action>()), Times.Exactly(1),
"After changing type of IGuiThreadProvider, gui should be executed in new gui thread");
}
private void GuiThreadChanged(WpfGuiChangedMessage wpfGuiChangedMessage)
{
_guiThreadProvider = wpfGuiChangedMessage.NewGuiThreadProvider;
Unsubscribe(_ticket);
_ticket = Subscribe <WpfGuiChangedMessage>(GuiThreadChangedInvalid);
}
