'Create log locator with default value, base=10.0, subs=[1.0],
numdecs=4, numticks=15 and change it to something else.
See if change was successful. Should not raise exception.'

def test_set_params(self):

    loc = mticker.LogLocator()
    loc.set_params(numticks=7, numdecs=8, subs=[2.0], base=4)
    assert (loc.numticks == 7)
    assert (loc.numdecs == 8)
    assert (loc._base == 4)
    assert (list(loc._subs) == [2.0])
