def test_run_loopout(self): #未找到最优解,完成所有迭代
class TCell(object):pass
cell = TCell()
pls = [cell,cell]
proxy = pmock.Mock()
proxy.stubs().method('judge').will(pmock.return_value(88))
proxy.stubs().method('fitness_ranker').will(pmock.return_value([50,50]))
proxy.stubs().method('selector').will(pmock.return_value(([cell,cell],[cell,cell])))
reproducer = lambda seeds,gametes : pls
reproducer.times_of_length = 1
nature = Nature(proxy.judge,proxy.fitness_ranker,proxy.selector,reproducer)
times = 20
rpls,laststep = nature.run(pls,20)
self.assertEquals(times-1,laststep)
self.assertEquals(pls,rpls)
def test_run_2(self): #第二代找到最优解
#print 'begin run2'
class TCell(object):pass
cell,cell2 = TCell(),TCell()
pls = [cell,cell]
pls2 = [cell2,cell2]
proxy = pmock.Mock()
proxy.expects(pmock.once()).judge(pmock.eq(cell)).will(pmock.return_value(88))
proxy.expects(pmock.once()).judge(pmock.eq(cell2)).will(pmock.return_value(100))
proxy.stubs().method('fitness_ranker').will(pmock.return_value([50,50]))
proxy.stubs().method('selector').will(pmock.return_value(([cell,cell],[cell,cell])))
reproducer = lambda seeds,gametes : pls2
reproducer.times_of_length = 1
nature = Nature(proxy.judge,proxy.fitness_ranker,proxy.selector,reproducer)
times = 20
rpls,laststep = nature.run(pls,20)
proxy.verify()
self.assertEquals(1,laststep)
self.assertEquals(pls2,rpls)
def test_cached_judge(self):
class TCell(object):pass
cell = TCell()
proxy = pmock.Mock()
proxy.expects(pmock.once()).judge(pmock.eq(cell)).will(pmock.return_value(88))
reproducer = helper.simple_reproducer_factory(0.8,0.001)
nature = Nature(proxy.judge,helper.nonlinear_rank,helper.roulette_wheel_selection_factory(reproducer.times_of_length),reproducer)
nature.cached_judge(cell)
nature.cached_judge(cell)
nature.cached_judge(cell)
proxy.verify()
