def METHOD_NAME(self):
    hmap = HoloMap(
        {0: (Curve([]).opts(title='A') * Curve([])),
         1: (Curve([]).opts(title='B') * Curve([]))}
    )
    plot = mpl_renderer.get_plot(hmap)
    self.assertEqual(plot.handles['title'].get_text(), 'A')
    plot.update((1,))
    self.assertEqual(plot.handles['title'].get_text(), 'B')