def test_one_way_ring_null_alg(self):
pop_xs = (
((1.0, ), (2.0, ), (3.0, )),
((2.0, ), (2.0, ), (2.0, )),
((3.0, ), (3.0, ), (3.0, )),
((4.0, ), (4.0, ), (4.0, )),
)
# Since we evolve the populations in index-order, the champion of pop1 ([1, ])
# will travel along the ring until pop4
out_pop_xs = (
((1.0, ), (2.0, ), (3.0, )),
((1.0, ), (2.0, ), (2.0, )),
((1.0, ), (3.0, ), (3.0, )),
((1.0, ), (4.0, ), (4.0, )),
)
top = topology.one_way_ring(4)
top.set_weight(1.0)
self.do_test_migr_setup(pop_xs, out_pop_xs, top, 1)
# We set the probability to 0.0 between islands 0 and 1. During migration,
# it is the the champion of pop2 - (2.0, ) which travels along the ring
top.set_weight(0, 1, 0.0)
out_pop_xs_2 = (
((1.0, ), (2.0, ), (3.0, )),
((2.0, ), (2.0, ), (2.0, )),
((2.0, ), (3.0, ), (3.0, )),
((2.0, ), (4.0, ), (4.0, )),
)
self.do_test_migr_setup(pop_xs, out_pop_xs_2, top, 1)
# We set the probability to 0.0, not migration should happen
top.set_weight(0.0)
self.do_test_migr_setup(pop_xs, pop_xs, top, 1)
def test_one_way_ring_null_alg(self):
pop_xs = (
((1.0, ), (2.0, ), (3.0, )),
((2.0, ), (2.0, ), (2.0, )),
((3.0, ), (3.0, ), (3.0, )),
((4.0, ), (4.0, ), (4.0, )),
)
# Since we evolve the populations in index-order, the champion of pop1 ([1, ])
# will travel along the ring until pop4
out_pop_xs = (
((1.0, ), (2.0, ), (3.0, )),
((1.0, ), (2.0, ), (2.0, )),
((1.0, ), (3.0, ), (3.0, )),
((1.0, ), (4.0, ), (4.0, )),
)
top = topology.one_way_ring(4)
top.set_weight(1.0)
self.do_test_migr_setup(pop_xs, out_pop_xs, top, 1)
# We set the probability to 0.0 between islands 0 and 1. During migration,
# it is the the champion of pop2 - (2.0, ) which travels along the ring
top.set_weight(0, 1, 0.0)
out_pop_xs_2 = (
((1.0, ), (2.0, ), (3.0, )),
((2.0, ), (2.0, ), (2.0, )),
((2.0, ), (3.0, ), (3.0, )),
((2.0, ), (4.0, ), (4.0, )),
)
self.do_test_migr_setup(pop_xs, out_pop_xs_2, top, 1)
# We set the probability to 0.0, not migration should happen
top.set_weight(0.0)
self.do_test_migr_setup(pop_xs, pop_xs, top, 1)
def test_chain_break(self):
""" Testing 'chain breaking' after push_back in one-way-ring """
t = topology.ring(2)
t.set_weight(0, 1, 0.1)
t.set_weight(1, 0, 0.2)
t.push_back()
# In two-way ring, the weights between the first and second island should be the same after push_back
self.assertEqual(t.get_weight(0, 1), 0.1)
self.assertEqual(t.get_weight(1, 0), 0.2)
self.assertEqual(t.get_weight(1, 2), 1.0)
self.assertEqual(t.get_weight(2, 1), 1.0)
self.assertEqual(t.get_weight(2, 0), 1.0)
self.assertEqual(t.get_weight(0, 2), 1.0)
# In one-way-ring, the edge 1->0 will be broken
# and replaced by 1->2 and 2->0 with weights 1.0 each
t = topology.one_way_ring(2)
t.set_weight(0, 1, 0.1)
t.set_weight(1, 0, 0.2)
t.push_back()
self.assertEqual(t.get_weight(0, 1), 0.1)
self.assertEqual(t.get_weight(1, 2), 1.0)
self.assertEqual(t.get_weight(2, 0), 1.0)
def test_chain_break(self):
""" Testing 'chain breaking' after push_back in one-way-ring """
t = topology.ring(2)
t.set_weight(0, 1, 0.1)
t.set_weight(1, 0, 0.2)
t.push_back()
# In two-way ring, the weights between the first and second island should be the same after push_back
self.assertEqual(t.get_weight(0, 1), 0.1)
self.assertEqual(t.get_weight(1, 0), 0.2)
self.assertEqual(t.get_weight(1, 2), 1.0)
self.assertEqual(t.get_weight(2, 1), 1.0)
self.assertEqual(t.get_weight(2, 0), 1.0)
self.assertEqual(t.get_weight(0, 2), 1.0)
# In one-way-ring, the edge 1->0 will be broken
# and replaced by 1->2 and 2->0 with weights 1.0 each
t = topology.one_way_ring(2)
t.set_weight(0, 1, 0.1)
t.set_weight(1, 0, 0.2)
t.push_back()
self.assertEqual(t.get_weight(0, 1), 0.1)
self.assertEqual(t.get_weight(1, 2), 1.0)
self.assertEqual(t.get_weight(2, 0), 1.0)