def METHOD_NAME(self):
    errorbars = ErrorBars([(0, 0, 0.1, 0.2, '#000000'), (0, 1, 0.2, 0.4, '#FF0000'), (0, 2, 0.6, 1.2, '#00FF00')],
                          vdims=['y', 'perr', 'nerr', 'color']).opts(edgecolor='color')
    plot = mpl_renderer.get_plot(errorbars)
    artist = plot.handles['artist']
    self.assertEqual(artist.get_edgecolors(), np.array([
        [0, 0, 0, 1], [1, 0, 0, 1], [0, 1, 0, 1]]
    ))