def test_is_fixed_sized(self):
"""
Ensure that RewiredECA is of fixed size
"""
from neet.interfaces import is_fixed_sized
self.assertTrue(is_fixed_sized(RewiredECA))
self.assertTrue(is_fixed_sized(RewiredECA(23, size=3)))
self.assertTrue(is_fixed_sized(RewiredECA(
30, wiring=[[-1, 0, 1], [0, 1, 2], [1, 2, 3]])))
def test_is_network(self):
"""
Ensure that RewiredECA meets the requirement of a network
"""
from neet.interfaces import is_network
self.assertTrue(is_network(RewiredECA))
self.assertTrue(is_network(RewiredECA(23, size=3)))
self.assertTrue(is_network(RewiredECA(
30, wiring=[[-1, 0, 1], [0, 1, 2], [1, 2, 3]])))
def test_invalid_code(self):
"""
Ensure that init fails when an invalid Wolfram code is provided
"""
with self.assertRaises(ValueError):
RewiredECA(-1, size=3)
with self.assertRaises(ValueError):
RewiredECA(256, size=3)
with self.assertRaises(TypeError):
RewiredECA("30", size=3)
def test_invalid_boundary(self):
"""
Ensure that init fails when an invalid boundary condition is provided
"""
with self.assertRaises(TypeError):
RewiredECA(30, boundary=[1, 2], size=3)
with self.assertRaises(ValueError):
RewiredECA(30, boundary=(1, 0, 1), size=3)
with self.assertRaises(ValueError):
RewiredECA(30, boundary=(1, 2), size=3)
def test_invalid_size(self):
"""
Ensure that init fails when an invalid size is provided
"""
with self.assertRaises(TypeError):
RewiredECA(30, size="3")
with self.assertRaises(ValueError):
RewiredECA(30, size=-1)
with self.assertRaises(ValueError):
RewiredECA(30, size=0)
def test_invalid_size_wiring(self):
"""
Ensure that size and wiring are not both provided, but at least one is
"""
with self.assertRaises(ValueError):
RewiredECA(30, size=3, wiring=[])
with self.assertRaises(ValueError):
RewiredECA(30)
with self.assertRaises(ValueError):
RewiredECA(30, boundary=(0, 0))
def test_size_init(self):
"""
Ensure that size initialization is working correctly
"""
eca = RewiredECA(30, size=2)
self.assertEqual(30, eca.code)
self.assertEqual(2, eca.size)
self.assertTrue(np.array_equal([[-1, 0], [0, 1], [1, 2]], eca.wiring))
eca = RewiredECA(23, boundary=(1, 0), size=5)
self.assertEqual(23, eca.code)
self.assertEqual(5, eca.size)
self.assertTrue(
np.array_equal([[-1, 0, 1, 2, 3], [0, 1, 2, 3, 4],
[1, 2, 3, 4, 5]],
eca.wiring))
def test_wiring_init(self):
"""
Ensure that wiring initialization is working correctly
"""
eca = RewiredECA(30, wiring=[[0], [0], [0]])
self.assertEqual(30, eca.code)
self.assertEqual(1, eca.size)
self.assertTrue(np.array_equal([[0], [0], [0]], eca.wiring))
eca = RewiredECA(23, boundary=(1, 0), wiring=[
[-1, -1, 0], [0, 1, 1], [2, 0, -1]])
self.assertEqual(23, eca.code)
self.assertEqual(3, eca.size)
self.assertTrue(
np.array_equal([[-1, -1, 0], [0, 1, 1], [2, 0, -1]],
eca.wiring))
def test_reca_values_none(self):
"""
Ensure that values behaves correctly for nil arguments
"""
reca = RewiredECA(30, size=5)
xs = [0, 0, 1, 0, 0]
self.assertEqual([0, 1, 1, 1, 0], reca.update(xs, values=None))
self.assertEqual([1, 1, 0, 0, 1], reca.update(xs, values={}))
def test_reca_pin_none(self):
"""
Ensure that pin behaves correctly for nil arguments
"""
reca = RewiredECA(30, size=5)
xs = [0, 0, 1, 0, 0]
self.assertEqual([0, 1, 1, 1, 0], reca.update(xs, pin=None))
self.assertEqual([1, 1, 0, 0, 1], reca.update(xs, pin=[]))
def test_setting_wiring(self):
"""
Ensure that we cannot reshape the wiring
"""
eca = RewiredECA(30, size=2)
with self.assertRaises(AttributeError):
eca.wiring = np.asarray([[0, 0, 0], [0, 0, 0], [0, 0, 0]])
self.assertEqual(-1, eca.wiring[0, 0])
eca.wiring[0, 0] = 0
self.assertEqual(0, eca.wiring[0, 0])
def test_invalid_lattice_size(self):
"""
Ensure that update fails when the lattice is the wrong size
"""
eca = RewiredECA(30, size=3)
with self.assertRaises(ValueError):
eca.update([])
with self.assertRaises(ValueError):
eca.update([0])
with self.assertRaises(ValueError):
eca.update([0, 0])
def test_reca_invalid_values(self):
"""
Ensure ValueError is raised for invalid values
"""
reca = RewiredECA(30, size=5)
with self.assertRaises(ValueError):
reca.update([0, 0, 0, 0, 0], values={0: 2})
with self.assertRaises(ValueError):
reca.update([0, 0, 0, 0, 0], values={0: -1})
def test_reproduce_open_ecas(self):
"""
Ensure that RewiredECAs can reproduce open ECAs
"""
from neet.automata import ECA
reca = RewiredECA(30, boundary=(1, 0), size=7)
eca = ECA(30, boundary=(1, 0))
state = [0, 0, 0, 1, 0, 0, 0]
for _ in range(10):
expect = eca.update(np.copy(state))
got = reca.update(state)
self.assertTrue(np.array_equal(expect, got))
def test_reca_pin_index_clash(self):
"""
Ensure ValueError is raised when index and pin are provided
"""
reca = RewiredECA(30, size=5)
with self.assertRaises(ValueError):
reca.update([0, 0, 0, 0, 0], index=0, pin=[1])
with self.assertRaises(ValueError):
reca.update([0, 0, 0, 0, 0], index=1, pin=[1])
with self.assertRaises(ValueError):
reca.update([0, 0, 0, 0, 0], index=1, pin=[0, 1])
def test_reca_invalid_index(self):
"""
Test for invalid index arguments
"""
reca = RewiredECA(30, wiring=[
[0, 4, 1, 2, 3], [0, 1, 2, 3, 4], [0, 2, 3, 4, 5]
])
with self.assertRaises(IndexError):
reca.update([0, 0, 0, 0, 1], index=6)
with self.assertRaises(IndexError):
reca.update([0, 0, 0, 0, 1], index=-6)
def test_reca_values_index_clash(self):
"""
Ensure ValueError is raised when index and values are both provided
"""
reca = RewiredECA(30, size=5)
with self.assertRaises(ValueError):
reca.update([0, 0, 0, 0, 0], index=0, values={0: 1})
with self.assertRaises(ValueError):
reca.update([0, 0, 0, 0, 0], index=1, values={1: 0})
with self.assertRaises(ValueError):
reca.update([0, 0, 0, 0, 0], index=1, values={0: 0, 1: 0})
def test_reca_index(self):
"""
Test the index argument
"""
reca = RewiredECA(30, wiring=[
[0, 4, 1, 2, 3], [0, 1, 2, 3, 4], [0, 2, 3, 4, 5]
])
state = [0, 0, 0, 0, 1]
self.assertEqual([0, 0, 0, 1, 1], reca.update(state, index=3))
self.assertEqual([0, 0, 1, 1, 1], reca.update(state, index=2))
self.assertEqual([0, 0, 1, 1, 0], reca.update(state, index=-1))
self.assertEqual([0, 1, 1, 1, 0], reca.update(state, index=1))
self.assertEqual([0, 1, 0, 1, 0], reca.update(state, index=-3))
self.assertEqual([0, 1, 0, 1, 0], reca.update(state, index=0))
def test_invalid_wiring(self):
"""
Ensure that init fails when an invalid wiring is provided
"""
with self.assertRaises(TypeError):
RewiredECA(30, wiring=5)
with self.assertRaises(TypeError):
RewiredECA(30, wiring="apples")
with self.assertRaises(ValueError):
RewiredECA(30, wiring=[])
with self.assertRaises(ValueError):
RewiredECA(30, wiring=[-1, 0, 1])
with self.assertRaises(ValueError):
RewiredECA(30, wiring=np.asarray([-1, 0, 1]))
with self.assertRaises(ValueError):
RewiredECA(30, wiring=[[0], [0]])
with self.assertRaises(ValueError):
RewiredECA(30, wiring=[[0, 0], [0], [0]])
with self.assertRaises(ValueError):
RewiredECA(30, wiring=[[-2], [0], [0]])
with self.assertRaises(ValueError):
RewiredECA(30, wiring=[[2], [0], [0]])
def test_invalid_lattice_state(self):
"""
Ensure that the states of the lattice are binary states
"""
eca = RewiredECA(30, size=3)
with self.assertRaises(ValueError):
eca.update([-1, 0, 1])
with self.assertRaises(ValueError):
eca.update([1, 0, -1])
with self.assertRaises(ValueError):
eca.update([2, 0, 0])
with self.assertRaises(ValueError):
eca.update([1, 0, 2])
with self.assertRaises(ValueError):
eca.update([[1], [0], [2]])
with self.assertRaises(ValueError):
eca.update("101")
def test_reca_values_pin_clash(self):
"""
Ensure ValueError is raised when pin and values are both provided
"""
reca = RewiredECA(30, size=5)
with self.assertRaises(ValueError):
reca.update([0, 0, 0, 0, 0], pin=[0], values={0: 1})
with self.assertRaises(ValueError):
reca.update([0, 0, 0, 0, 0], pin=[1], values={1: 0})
with self.assertRaises(ValueError):
reca.update([0, 0, 0, 0, 0], pin=[1], values={0: 0, 1: 0})
with self.assertRaises(ValueError):
reca.update([0, 0, 0, 0, 0], pin=[1, 0], values={0: 0, 1: 0})
def test_reca_pin(self):
"""
Test the pin argument
"""
reca = RewiredECA(30, wiring=[
[-1, 4, 1, 2, -1], [0, 1, 2, 3, 4], [0, 2, 3, 4, 5]
])
xs = [0, 0, 1, 0, 0]
self.assertEqual([0, 0, 1, 1, 0], reca.update(xs, pin=[1]))
self.assertEqual([0, 1, 1, 1, 0], reca.update(xs, pin=[3]))
self.assertEqual([0, 1, 1, 1, 0], reca.update(xs, pin=[3, 2]))
self.assertEqual([0, 1, 0, 1, 0], reca.update(xs, pin=[-2]))
reca.boundary = (1, 1)
xs = [0, 0, 1, 0, 0]
self.assertEqual([1, 0, 1, 0, 0], reca.update(xs, pin=[1, 3]))
self.assertEqual([1, 1, 1, 0, 0], reca.update(xs, pin=[-2, -5]))
self.assertEqual([1, 1, 1, 1, 0], reca.update(xs, pin=[0, 2]))
def test_rewired_network(self):
"""
Test a non-trivially rewired network
"""
reca = RewiredECA(30, wiring=[
[-1, 0, 1, 2, 3], [0, 1, 2, 3, 4], [1, 2, 3, 4, 5]
])
state = [0, 0, 0, 0, 1]
self.assertEqual([1, 0, 0, 1, 1], reca.update(state))
reca.wiring[:, :] = [
[0, 4, 1, 2, 3], [0, 1, 2, 3, 4], [0, 2, 3, 4, 5]
]
state = [0, 0, 0, 0, 1]
self.assertEqual([0, 1, 0, 1, 1], reca.update(state))
self.assertEqual([0, 0, 0, 1, 0], reca.update(state))
self.assertEqual([0, 0, 1, 1, 1], reca.update(state))
self.assertEqual([0, 0, 1, 0, 0], reca.update(state))
self.assertEqual([0, 1, 1, 1, 0], reca.update(state))
self.assertEqual([0, 1, 0, 0, 1], reca.update(state))
self.assertEqual([0, 0, 1, 1, 1], reca.update(state))
def test_reca_values(self):
"""
Test the values argument
"""
reca = RewiredECA(30, wiring=[
[-1, 4, 1, 2, -1], [0, 1, 2, 3, 4], [0, 2, 3, 4, 5]
])
xs = [0, 0, 1, 0, 0]
self.assertEqual([1, 1, 1, 1, 0], reca.update(xs, values={0: 1}))
self.assertEqual([1, 1, 0, 0, 0], reca.update(xs, values={-1: 0}))
self.assertEqual([1, 1, 1, 1, 1], reca.update(xs, values={-2: 1}))
self.assertEqual([1, 0, 1, 0, 0], reca.update(
xs, values={2: 1, -5: 1}))
reca.boundary = (1, 1)
xs = [0, 0, 1, 0, 0]
self.assertEqual([0, 1, 1, 1, 0], reca.update(xs, values={0: 0}))
self.assertEqual([1, 1, 0, 0, 1], reca.update(xs, values={-1: 1}))
self.assertEqual([0, 0, 1, 0, 0], reca.update(xs, values={-2: 0}))
self.assertEqual([0, 1, 0, 1, 0], reca.update(
xs, values={2: 0, -5: 0}))