def test_fitness_function_returns_float(self):
"""
Makes sure the generated fitness function returns a fitness score as a
float.
"""
fitness_function = make_fitness_function(TARGET_WORD)
genome = Genome(['c', 'a', 't'])
result = fitness_function(genome)
self.assertTrue(float, type(result))
def test_fitness_function_returns_float(self):
"""
Makes sure the generated fitness function returns a fitness score as a
float.
"""
fitness_function = make_fitness_function(TARGET_WORD)
genome = Genome(['c', 'a', 't'])
result = fitness_function(genome)
self.assertTrue(float, type(result))
def test_fitness_function_uses_cached_genome_fitness(self):
"""
Ensures the fitness function bails if there is already a score set for
the genome.
"""
fitness_function = make_fitness_function(TARGET_WORD)
genome = Genome(['c', 'a', 't'])
genome.fitness = 12345
result = fitness_function(genome)
self.assertEqual(12345, result)
def test_fitness_function_uses_cached_genome_fitness(self):
"""
Ensures the fitness function bails if there is already a score set for
the genome.
"""
fitness_function = make_fitness_function(TARGET_WORD)
genome = Genome(['c', 'a', 't'])
genome.fitness = 12345
result = fitness_function(genome)
self.assertEqual(12345, result)
def test_fitness_function_sets_fitness_on_genome(self):
"""
Ensures the fitness score is set in the genome's fitness attribute and
is the same as the returned fitness score.
"""
fitness_function = make_fitness_function(TARGET_WORD)
genome = Genome(['c', 'a', 't'])
self.assertEqual(None, genome.fitness)
result = fitness_function(genome)
self.assertNotEqual(None, genome.fitness)
self.assertEqual(result, genome.fitness)
def test_fitness_function_sets_fitness_on_genome(self):
"""
Ensures the fitness score is set in the genome's fitness attribute and
is the same as the returned fitness score.
"""
fitness_function = make_fitness_function(TARGET_WORD)
genome = Genome(['c', 'a', 't'])
self.assertEqual(None, genome.fitness)
result = fitness_function(genome)
self.assertNotEqual(None, genome.fitness)
self.assertEqual(result, genome.fitness)
def test_make_fitness_function_returns_callable(self):
"""
Ensures the make_fitness_function returns a callable.
"""
result = make_fitness_function(TARGET_WORD)
self.assertTrue(callable(result))
def test_make_fitness_function_returns_callable(self):
"""
Ensures the make_fitness_function returns a callable.
"""
result = make_fitness_function(TARGET_WORD)
self.assertTrue(callable(result))
