def test_reset_data_checks_validity(self, values):
dna = ga.FloatDNA([])
with pytest.raises(ValueError):
dna.reset(values)
def test_subscription_setter(self):
dna = ga.FloatDNA([0.0] * 20)
dna[-3:] = [0.1, 0.2, 0.3]
assert len(dna) == 20
assert dna[-3:] == pytest.approx([0.1, 0.2, 0.3])
assert sum(dna) == pytest.approx(0.6)
def test_reset_data(self):
dna = ga.FloatDNA([0.0] * 20)
dna.reset([0.5] * 20)
assert len(dna) == 20
assert dna[7] == 0.5
def test_iter(self):
dna = ga.FloatDNA([1.0] * 20)
assert len(list(dna)) == 20
def test_flip_mutate_at(self):
dna = ga.FloatDNA([0, 0.1, 0.2, 0.3, 0.4])
for index in range(5):
dna.flip_mutate_at(index)
assert list(dna) == pytest.approx([1.0, 0.9, 0.8, 0.7, 0.6])
def test_init_value_is_valid(self, value):
with pytest.raises(ValueError):
ga.FloatDNA([value] * 20)
def test_init_value(self):
dna = ga.FloatDNA([1.0] * 20)
assert all(v == 1.0 for v in dna) is True