def test_search_my_neighbors_when_distance_equal_range(self):
glowworm1 = Glowworm(self.landscape_position1, self.gso_parameters)
glowworm2 = Glowworm(self.landscape_position4, self.gso_parameters)
glowworm3 = Glowworm(self.landscape_position5, self.gso_parameters)
glowworm4 = Glowworm(self.landscape_position6, self.gso_parameters)
glowworm1.luciferin = 3.0
glowworm1.vision_range = 1.0
glowworms = [glowworm1, glowworm2, glowworm3, glowworm4]
glowworm1.search_neighbors(glowworms)
assert 1 == len(glowworm1.neighbors)
assert glowworm1.neighbors[0] == glowworm2
def test_search_my_neighbors(self):
glowworm1 = Glowworm(self.landscape_position1, self.gso_parameters)
glowworm2 = Glowworm(self.landscape_position4, self.gso_parameters)
glowworm3 = Glowworm(self.landscape_position5, self.gso_parameters)
glowworm1.luciferin = 3.0
glowworm1.vision_range = 1.0
glowworms = [glowworm1, glowworm2, glowworm3]
glowworm1.search_neighbors(glowworms)
assert len(glowworm1.neighbors) == 1
assert glowworm1.neighbors[0] == glowworm2
def __init__(self, landscape_positions, parameters):
"""Creates a glowworm population using a landscape_positons list and parameters"""
positions_per_glowworm = [[]
for _ in range(len(landscape_positions[0]))]
for function in landscape_positions:
for glowworm_id, position in enumerate(function):
positions_per_glowworm[glowworm_id].append(position)
self.glowworms = [
Glowworm(positions, parameters)
for positions in positions_per_glowworm
]
self.docking = (landscape_positions[0][0].__class__.__name__ !=
'LandscapePosition')
def test_distance2(self):
glowworm1 = Glowworm(self.landscape_position1, self.gso_parameters)
glowworm2 = Glowworm(self.landscape_position3, self.gso_parameters)
assert_almost_equals(8.0, glowworm1.distance2(glowworm2))
def check_compare_glowworms(self):
glowworm1 = Glowworm(self.landscape_position1, self.gso_parameters)
glowworm2 = Glowworm(self.landscape_position2, self.gso_parameters)
assert glowworm1 == glowworm1
assert glowworm1 != glowworm2
def test_compute_luciferin(self):
glowworm = Glowworm(self.landscape_position1, self.gso_parameters)
assert_almost_equals((1.0 - 0.4) * 5.0 + 0.6 * 0.9810118431238463,
glowworm.compute_luciferin())
def test_create_glowworm(self):
glowworm = Glowworm(self.landscape_position1, self.gso_parameters)
assert_almost_equals(0.4, glowworm.rho)
def test_move_same_coordinates(self):
landscape_position1 = [
LandscapePosition(self.objective_function, Coordinates([1.0, 2.0]))
]
landscape_position2 = [
LandscapePosition(self.objective_function, Coordinates([1.0, 2.0]))
]
glowworm1 = Glowworm(landscape_position1, self.gso_parameters)
glowworm2 = Glowworm(landscape_position2, self.gso_parameters)
glowworm1.luciferin = 4.0
glowworm1.vision_range = 2.0
glowworm1.max_vision_range = 1.0
glowworm2.luciferin = 4.0
glowworm2.vision_range = 2.0
glowworm2.max_vision_range = 1.0
glowworm1.move(glowworm2)
expected = LandscapePosition(self.objective_function,
Coordinates([1.0, 2.0]))
assert expected == glowworm1.landscape_positions[0]
def test_update_visio_range_when_number_neighbors_is_greater_than_maximum_neighbors(
self):
glowworm1 = Glowworm(self.landscape_position1, self.gso_parameters)
glowworm2 = Glowworm(self.landscape_position7, self.gso_parameters)
glowworm1.luciferin = 5.0
glowworm1.vision_range = 3.0
glowworm1.max_vision_range = 3.0
glowworm2.luciferin = 5.0
glowworm2.vision_range = 3.0
glowworm2.max_vision_range = 3.0
for _ in range(23):
glowworm1.neighbors.append(glowworm2)
assert 23 == len(glowworm1.neighbors)
glowworm1.update_vision_range()
assert_almost_equals(1.5600000000000001, glowworm1.vision_range)
def test_update_visio_range_when_number_neighbors_is_less_than_maximum_neighbors(
self):
glowworm1 = Glowworm(self.landscape_position1, self.gso_parameters)
glowworm2 = Glowworm(self.landscape_position7, self.gso_parameters)
glowworm3 = Glowworm(self.landscape_position8, self.gso_parameters)
glowworm1.luciferin = 3.0
glowworm1.vision_range = 2.0
glowworm1.max_vision_range = 1.0
glowworm2.luciferin = 4.0
glowworm2.vision_range = 2.0
glowworm2.max_vision_range = 1.0
glowworm3.luciferin = 5.0
glowworm3.vision_range = 2.0
glowworm3.max_vision_range = 1.0
glowworm1.neighbors = [glowworm2, glowworm3]
glowworm1.update_vision_range()
assert_almost_equals(1.0, glowworm1.vision_range)
def test_select_a_glowworm_by_random_number(self):
glowworm1 = Glowworm(self.landscape_position1, self.gso_parameters)
glowworm2 = Glowworm(self.landscape_position7, self.gso_parameters)
glowworm3 = Glowworm(self.landscape_position8, self.gso_parameters)
glowworm4 = Glowworm(self.landscape_position9, self.gso_parameters)
glowworm1.luciferin = 3.0
glowworm1.vision_range = 1.0
glowworm2.luciferin = 4.0
glowworm2.vision_range = 1.0
glowworm3.luciferin = 5.0
glowworm3.vision_range = 1.0
glowworm4.luciferin = 6.0
glowworm4.vision_range = 1.0
glowworm1.neighbors = [glowworm2, glowworm3, glowworm4]
glowworm1.probabilities = [1.0 / 6.0, 2.0 / 6.0, 3.0 / 6.0]
assert glowworm4 == glowworm1.select_random_neighbor(0.55)
assert glowworm2 == glowworm1.select_random_neighbor(0.1)
assert glowworm3 == glowworm1.select_random_neighbor(0.2)
def test_compute_probability_moving_toward_neighbor(self):
glowworm1 = Glowworm(self.landscape_position1, self.gso_parameters)
glowworm2 = Glowworm(self.landscape_position7, self.gso_parameters)
glowworm3 = Glowworm(self.landscape_position8, self.gso_parameters)
glowworm4 = Glowworm(self.landscape_position9, self.gso_parameters)
glowworm1.luciferin = 3.0
glowworm1.vision_range = 1.0
glowworm2.luciferin = 4.0
glowworm2.vision_range = 1.0
glowworm3.luciferin = 5.0
glowworm3.vision_range = 1.0
glowworm4.luciferin = 6.0
glowworm4.vision_range = 1.0
glowworm1.neighbors = [glowworm2, glowworm3, glowworm4]
glowworm1.compute_probability_moving_toward_neighbor()
assert_almost_equals(1.0 / 6.0, glowworm1.probabilities[0])
assert_almost_equals(2.0 / 6.0, glowworm1.probabilities[1])
assert_almost_equals(3.0 / 6.0, glowworm1.probabilities[2])
