def test_keep_new(self):
"""Make sure we always keep the new organism when specified.
"""
mutator = SafeFitnessMutation(self.test_mutator, 1.0)
self.test_mutator.type = "same"
new_org = mutator.mutate(self.org)
assert (new_org == self.org), \
"Did not retain organism for same fitness."
self.test_mutator.type = "lower"
new_org = mutator.mutate(self.org)
assert (new_org.fitness < self.org.fitness), \
"Did not get new organism when it had lower fitness."
self.test_mutator.type = "higher"
new_org = mutator.mutate(self.org)
assert (new_org.fitness > self.org.fitness), \
"Did not get new organism under higher fitness conditions."
def test_keep_higher(self):
"""Make sure we always keep the higher fitness.
"""
mutator = SafeFitnessMutation(self.test_mutator)
self.test_mutator.type = "same"
new_org = mutator.mutate(self.org)
assert (new_org == self.org), \
"Did not retain organism for same fitness."
self.test_mutator.type = "lower"
new_org = mutator.mutate(self.org)
assert (new_org == self.org), \
"Did not retain organism when crossover had lower fitness."
self.test_mutator.type = "higher"
new_org = mutator.mutate(self.org)
assert (new_org.fitness > self.org.fitness), \
"Did not get new organism when it had higher fitness."
def test_keep_new(self):
"""Make sure we always keep the new organism when specified.
"""
mutator = SafeFitnessMutation(self.test_mutator, 1.0)
self.test_mutator.type = "same"
new_org = mutator.mutate(self.org)
assert (new_org == self.org), \
"Did not retain organism for same fitness."
self.test_mutator.type = "lower"
new_org = mutator.mutate(self.org)
assert (new_org.fitness < self.org.fitness), \
"Did not get new organism when it had lower fitness."
self.test_mutator.type = "higher"
new_org = mutator.mutate(self.org)
assert (new_org.fitness > self.org.fitness), \
"Did not get new organism under higher fitness conditions."
def test_keep_higher(self):
"""Make sure we always keep the higher fitness.
"""
mutator = SafeFitnessMutation(self.test_mutator)
self.test_mutator.type = "same"
new_org = mutator.mutate(self.org)
assert (new_org == self.org), \
"Did not retain organism for same fitness."
self.test_mutator.type = "lower"
new_org = mutator.mutate(self.org)
assert (new_org == self.org), \
"Did not retain organism when crossover had lower fitness."
self.test_mutator.type = "higher"
new_org = mutator.mutate(self.org)
assert (new_org.fitness > self.org.fitness), \
"Did not get new organism when it had higher fitness."
def test_keep_new(self):
"""Make sure we always keep the new organism when specified.
"""
mutator = SafeFitnessMutation(self.test_mutator, 1.0)
self.test_mutator.type = "same"
new_org = mutator.mutate(self.org)
self.assertEqual(new_org, self.org,
"Did not retain organism for same fitness.")
self.test_mutator.type = "lower"
new_org = mutator.mutate(self.org)
self.assertLess(new_org.fitness, self.org.fitness,
"Did not get new organism when it had lower fitness.")
self.test_mutator.type = "higher"
new_org = mutator.mutate(self.org)
self.assertGreater(new_org.fitness, self.org.fitness,
"Did not get new organism under higher "
"fitness conditions.")
def test_keep_new(self):
"""Make sure we always keep the new organism when specified.
"""
mutator = SafeFitnessMutation(self.test_mutator, 1.0)
self.test_mutator.type = "same"
new_org = mutator.mutate(self.org)
self.assertEqual(new_org, self.org,
"Did not retain organism for same fitness.")
self.test_mutator.type = "lower"
new_org = mutator.mutate(self.org)
self.assertLess(new_org.fitness, self.org.fitness,
"Did not get new organism when it had lower fitness.")
self.test_mutator.type = "higher"
new_org = mutator.mutate(self.org)
self.assertGreater(
new_org.fitness, self.org.fitness,
"Did not get new organism under higher "
"fitness conditions.")
def test_keep_higher(self):
"""Make sure we always keep the higher fitness.
"""
mutator = SafeFitnessMutation(self.test_mutator)
self.test_mutator.type = "same"
new_org = mutator.mutate(self.org)
self.assertEqual(new_org, self.org,
"Did not retain organism for same fitness.")
self.test_mutator.type = "lower"
new_org = mutator.mutate(self.org)
self.assertEqual(new_org, self.org,
"Did not retain organism when crossover "
"had lower fitness.")
self.test_mutator.type = "higher"
new_org = mutator.mutate(self.org)
self.assertGreater(new_org.fitness, self.org.fitness,
"Did not get new organism when it had "
"higher fitness.")
def test_keep_higher(self):
"""Make sure we always keep the higher fitness.
"""
mutator = SafeFitnessMutation(self.test_mutator)
self.test_mutator.type = "same"
new_org = mutator.mutate(self.org)
self.assertEqual(new_org, self.org,
"Did not retain organism for same fitness.")
self.test_mutator.type = "lower"
new_org = mutator.mutate(self.org)
self.assertEqual(
new_org, self.org, "Did not retain organism when crossover "
"had lower fitness.")
self.test_mutator.type = "higher"
new_org = mutator.mutate(self.org)
self.assertGreater(
new_org.fitness, self.org.fitness,
"Did not get new organism when it had "
"higher fitness.")
