def test_accepts_equal():
"""
Tests if the hill climbing method accepts a solution that results in the
same objective value.
"""
hill_climbing = HillClimbing()
assert_(hill_climbing.accept(rnd.RandomState(), Zero(), Zero(), Zero()))
def test_accepts_better():
"""
Tests if the hill climbing method accepts a better solution.
"""
hill_climbing = HillClimbing()
assert_(hill_climbing.accept(rnd.RandomState(), One(), One(), Zero()))
def test_rejects_worse():
"""
Tests if the hill climbing method accepts a worse solution.
"""
hill_climbing = HillClimbing()
assert_(not hill_climbing.accept(rnd.RandomState(), Zero(), Zero(), One()))
