public void ShowHelpTabMessageExpectHelpTabWithUriActive()
{
lock (syncroot)
{
CreateFullExportsAndVm();
var msg = new ShowHelpTabMessage("testuri");
_mainViewModel.Handle(msg);
var helpctx = _mainViewModel.ActiveItem.WorkSurfaceViewModel as HelpViewModel;
Assert.IsTrue(helpctx.Uri == "testuri");
}
}