neuropercolation/tests/test_neighborhood.py
Richard Feistenauer 9b527a044f Reworked CellularAutomaton to improve API and speed
+ Added CI
+ Restructured Project
+ Improved API Improved creation speed by factor of \~2
+ Improved execution speed by factor of \~15

- Removed multi processor since it doesn't work with the new setup and was not fast enough to matter.
2020-10-20 10:14:05 +00:00

149 lines
7.2 KiB
Python

"""
Copyright 2019 Richard Feistenauer
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""
# pylint: disable=missing-function-docstring
# pylint: disable=redefined-outer-name
import pytest
from .context import cellular_automaton as ca
def check_neighbors(neighborhood, neighborhood_sets, dimension=(3, 3)):
for neighborhood_set in neighborhood_sets:
neighbors = neighborhood.calculate_cell_neighbor_coordinates(neighborhood_set(0), dimension)
if neighborhood_set(1) != neighbors:
print("\nWrong neighbors (expected, real): ", (neighborhood_set(1)), neighbors)
return False
return True
@pytest.mark.parametrize(('coordinate', 'expected_neighborhood'),
(((0, 0), ((1, 0), (0, 1), (1, 1))),
((0, 1), ((0, 0), (1, 0), (1, 1), (0, 2), (1, 2))),
((1, 1), ((0, 0), (1, 0), (2, 0), (0, 1), (2, 1), (0, 2), (1, 2), (2, 2))),
((2, 2), ((1, 1), (2, 1), (1, 2)))))
def test_ignore_missing_neighbors(coordinate, expected_neighborhood):
neighborhood = ca.MooreNeighborhood(ca.EdgeRule.IGNORE_MISSING_NEIGHBORS_OF_EDGE_CELLS)
actual_neighborhood = neighborhood.calculate_cell_neighbor_coordinates(coordinate, (3, 3))
assert actual_neighborhood == expected_neighborhood
@pytest.mark.parametrize(('coordinate', 'expected_neighborhood'),
(((0, 0), ()),
((0, 1), ()),
((2, 0), ()),
((1, 1), ((0, 0), (1, 0), (2, 0), (0, 1), (2, 1), (0, 2), (1, 2), (2, 2))),
((2, 2), ())))
def test_ignore_edge_cells(coordinate, expected_neighborhood):
neighborhood = ca.MooreNeighborhood()
actual_neighborhood = neighborhood.calculate_cell_neighbor_coordinates(coordinate, (3, 3))
assert actual_neighborhood == expected_neighborhood
@pytest.mark.parametrize(('coordinate', 'expected_neighborhood'),
(((0, 0), ((2, 2), (0, 2), (1, 2), (2, 0), (1, 0), (2, 1), (0, 1), (1, 1))),
((1, 1), ((0, 0), (1, 0), (2, 0), (0, 1), (2, 1), (0, 2), (1, 2), (2, 2))),
((2, 2), ((1, 1), (2, 1), (0, 1), (1, 2), (0, 2), (1, 0), (2, 0), (0, 0)))))
def test_cyclic_dimensions(coordinate, expected_neighborhood):
neighborhood = ca.MooreNeighborhood(ca.EdgeRule.FIRST_AND_LAST_CELL_OF_DIMENSION_ARE_NEIGHBORS)
actual_neighborhood = neighborhood.calculate_cell_neighbor_coordinates(coordinate, (3, 3))
assert actual_neighborhood == expected_neighborhood
def test_von_neumann_r1():
neighborhood = ca.VonNeumannNeighborhood(ca.EdgeRule.FIRST_AND_LAST_CELL_OF_DIMENSION_ARE_NEIGHBORS)
actual_neighborhood = neighborhood.calculate_cell_neighbor_coordinates((1, 1), (3, 3))
assert actual_neighborhood == ((1, 0), (0, 1), (2, 1), (1, 2))
def test_von_neumann_r2():
neighborhood = ca.VonNeumannNeighborhood(ca.EdgeRule.FIRST_AND_LAST_CELL_OF_DIMENSION_ARE_NEIGHBORS, radius=2)
actual_neighborhood = neighborhood.calculate_cell_neighbor_coordinates((2, 2), (5, 5))
assert actual_neighborhood == ((2, 0), (1, 1), (2, 1), (3, 1), (0, 2), (1, 2),
(3, 2), (4, 2), (1, 3), (2, 3), (3, 3), (2, 4))
def test_von_neumann_d3():
neighborhood = ca.VonNeumannNeighborhood(ca.EdgeRule.FIRST_AND_LAST_CELL_OF_DIMENSION_ARE_NEIGHBORS)
actual_neighborhood = neighborhood.calculate_cell_neighbor_coordinates((1, 1, 1), (3, 3, 3))
assert actual_neighborhood == ((1, 1, 0), (1, 0, 1), (0, 1, 1), (2, 1, 1), (1, 2, 1), (1, 1, 2))
def test_radial():
neighborhood = ca.RadialNeighborhood(radius=2)
actual_neighborhood = neighborhood.calculate_cell_neighbor_coordinates((2, 2), (5, 5))
assert actual_neighborhood == ((1, 0), (2, 0), (3, 0),
(0, 1), (1, 1), (2, 1), (3, 1), (4, 1),
(0, 2), (1, 2), (3, 2), (4, 2),
(0, 3), (1, 3), (2, 3), (3, 3), (4, 3),
(1, 4), (2, 4), (3, 4))
@pytest.mark.parametrize(('coordinate', 'expected_neighborhood'),
(((2, 2), ((1, 0), (2, 0), (3, 0),
(0, 1), (1, 1), (2, 1), (3, 1),
(0, 2), (1, 2), (3, 2), (4, 2),
(0, 3), (1, 3), (2, 3), (3, 3),
(1, 4), (2, 4), (3, 4))),
((2, 3), ((1, 1), (2, 1), (3, 1),
(1, 2), (2, 2), (3, 2), (4, 2),
(0, 3), (1, 3), (3, 3), (4, 3),
(1, 4), (2, 4), (3, 4), (4, 4),
(1, 5), (2, 5), (3, 5)))))
def test_hexagonal(coordinate, expected_neighborhood):
neighborhood = ca.HexagonalNeighborhood(radius=2)
actual_neighborhood = neighborhood.calculate_cell_neighbor_coordinates(coordinate, (6, 6))
assert actual_neighborhood == expected_neighborhood
@pytest.mark.parametrize(('coordinate', 'cid'),
(((-1, -1), 0),
((0, -1), 1),
((1, -1), 2),
((-1, 0), 3),
((1, 0), 4),
((-1, 1), 5),
((0, 1), 6),
((1, 1), 7)))
def test_get_neighbour_by_relative(coordinate, cid):
neighborhood = ca.MooreNeighborhood()
neighborhood.calculate_cell_neighbor_coordinates((0, 0), [3, 3])
assert neighborhood.get_neighbor_by_relative_coordinate(list(range(8)), coordinate) == cid
@pytest.mark.parametrize("dimensions", (1, 2, 3, 4, 5))
def test_get_relative_11_neighbor_of_coordinate_11(dimensions):
neighborhood = ca.MooreNeighborhood()
neighbor = neighborhood.get_neighbor_by_relative_coordinate(
neighborhood.calculate_cell_neighbor_coordinates((1,)*dimensions, (3,)*dimensions),
(1,)*dimensions)
assert neighbor == (2, )*dimensions
@pytest.mark.parametrize(
("dimension", "expected"),
((1, ((0, ), (2, ))),
(2, ((0, 0), (1, 0), (2, 0),
(0, 1), (2, 1),
(0, 2), (1, 2), (2, 2))),
(3, ((0, 0, 0), (1, 0, 0), (2, 0, 0), (0, 1, 0), (1, 1, 0), (2, 1, 0), (0, 2, 0), (1, 2, 0), (2, 2, 0),
(0, 0, 1), (1, 0, 1), (2, 0, 1), (0, 1, 1), (2, 1, 1), (0, 2, 1), (1, 2, 1), (2, 2, 1),
(0, 0, 2), (1, 0, 2), (2, 0, 2), (0, 1, 2), (1, 1, 2), (2, 1, 2), (0, 2, 2), (1, 2, 2), (2, 2, 2)))))
def test_get_neighbor_coordinates(dimension, expected):
n = ca.MooreNeighborhood(edge_rule=ca.EdgeRule.FIRST_AND_LAST_CELL_OF_DIMENSION_ARE_NEIGHBORS)
assert n.calculate_cell_neighbor_coordinates((1,) * dimension, (3,) * dimension) == expected