public void VerifyWorkSpaceModeChangedEvent() { var wkSpce = new WorkSpace(); var helper = new HelperForWorkSpaces(); wkSpce.WorkModeChanged += new WorkSpaceModeChangeEventHandler<IWorkSpace, WorkSpaceModeChangeEventArgs>(helper.WorkModeChanged_DummyHandler); WorkSpaceMode priorMode = WorkSpaceMode.Normal; WorkSpaceMode newMode = WorkSpaceMode.Execution; var ea = new WorkSpaceModeChangeEventArgs(priorMode, newMode); wkSpce.OnWorkModeChanged(ea); Assert.Equal(1, helper.WorkModeChanged_TimesHandled); }