'Helper method for checks specific to line_color= only input.'

def line_color_input_checks(self, p, rgb):

    p.circle([1, 2, 3], [1, 2, 3], line_color=rgb)
    self.assertTupleEqual(p.renderers[(-1)].glyph.line_color, rgb)
    [self.assertIsInstance(v, int) for v in p.renderers[(-1)].glyph.line_color[0:3]]
