public void TestUpdateHelpDescriptor()
{
//arrange
var mainViewModelMock = new Mock <IShellViewModel>();
var helpViewModelMock = new Mock <IHelpWindowViewModel>();
mainViewModelMock.SetupGet(it => it.HelpViewModel).Returns(helpViewModelMock.Object);
CustomContainer.Register(mainViewModelMock.Object);
var helpText = "someText";
//act
_targetAsyncWorker.UpdateHelpDescriptor(helpText);
//assert
helpViewModelMock.Verify(it => it.UpdateHelpText(helpText));
}
