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from gudhi import CubicalComplex
"""This file is part of the Gudhi Library. The Gudhi library
(Geometric Understanding in Higher Dimensions) is a generic C++
library for computational topology.
Author(s): Vincent Rouvreau
Copyright (C) 2016 Inria
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
__author__ = "Vincent Rouvreau"
__copyright__ = "Copyright (C) 2016 Inria"
__license__ = "GPL v3"
def test_empty_constructor():
# Try to create an empty CubicalComplex
cub = CubicalComplex()
assert cub.__is_defined() == False
assert cub.__is_persistence_defined() == False
def test_non_existing_perseus_file_constructor():
# Try to open a non existing file
cub = CubicalComplex(perseus_file='pouetpouettralala.toubiloubabdou')
assert cub.__is_defined() == False
assert cub.__is_persistence_defined() == False
def test_dimension_or_perseus_file_constructor():
# Create test file
test_file = open('CubicalOneSphere.txt', 'w')
test_file.write('2\n3\n3\n0\n0\n0\n0\n100\n0\n0\n0\n0\n')
test_file.close()
# CubicalComplex can be constructed from dimensions and
# top_dimensional_cells OR from a Perseus-style file name.
cub = CubicalComplex(dimensions=[3, 3],
top_dimensional_cells = [1,2,3,4,5,6,7,8,9],
perseus_file='CubicalOneSphere.txt')
assert cub.__is_defined() == False
assert cub.__is_persistence_defined() == False
cub = CubicalComplex(top_dimensional_cells = [1,2,3,4,5,6,7,8,9],
perseus_file='CubicalOneSphere.txt')
assert cub.__is_defined() == False
assert cub.__is_persistence_defined() == False
cub = CubicalComplex(dimensions=[3, 3],
perseus_file='CubicalOneSphere.txt')
assert cub.__is_defined() == False
assert cub.__is_persistence_defined() == False
def test_dimension_simple_constructor():
cub = CubicalComplex(dimensions=[3, 3],
top_dimensional_cells = [1,2,3,4,5,6,7,8,9])
assert cub.__is_defined() == True
assert cub.__is_persistence_defined() == False
assert cub.persistence() == [(0, (1.0, float('inf')))]
assert cub.__is_persistence_defined() == True
assert cub.betti_numbers() == [1, 0, 0]
assert cub.persistent_betti_numbers(0, 1000) == [0, 0, 0]
def test_user_case_simple_constructor():
cub = CubicalComplex(dimensions=[3, 3],
top_dimensional_cells = [float('inf'), 0.,0.,0.,1.,0.,0.,0.,0.])
assert cub.__is_defined() == True
assert cub.__is_persistence_defined() == False
assert cub.persistence() == [(1, (0.0, 1.0)), (0, (0.0, float('inf')))]
assert cub.__is_persistence_defined() == True
other_cub = CubicalComplex(dimensions=[3, 3],
top_dimensional_cells = [1000., 0.,0.,0.,1.,0.,0.,0.,0.])
assert other_cub.persistence() == [(1, (0.0, 1.0)), (0, (0.0, float('inf')))]
def test_dimension_file_constructor():
# Create test file
test_file = open('CubicalOneSphere.txt', 'w')
test_file.write('2\n3\n3\n0\n0\n0\n0\n100\n0\n0\n0\n0\n')
test_file.close()
cub = CubicalComplex(perseus_file='CubicalOneSphere.txt')
assert cub.__is_defined() == True
assert cub.__is_persistence_defined() == False
assert cub.persistence() == [(1, (0.0, 100.0)), (0, (0.0, float('inf')))]
assert cub.__is_persistence_defined() == True
assert cub.betti_numbers() == [1, 0, 0]
assert cub.persistent_betti_numbers(0, 1000) == [1, 0, 0]
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