def METHOD_NAME():
    componentlist = [WeatheringComponent(c, f)
                     for c, f
                     in zip((0.3, 0.3, 0.4), (24, 24, 24))]
    assert [c.fraction for c in componentlist] == [0.3, 0.3, 0.4]
    assert [c.factor for c in componentlist] == [24, 24, 24]