def cmd_rotate(self):
"""Rotate order of the stacks"""
utils.shuffle_up(self.stacks)
self.group.layout_all()
def test_shuffle():
test_l = list(range(3))
utils.shuffle_up(test_l)
assert test_l != list(range(3))
utils.shuffle_down(test_l)
assert test_l == list(range(3))
