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""" This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
Author(s): Yuichi Ike
Copyright (C) 2020 Inria
Modification(s):
- YYYY/MM Author: Description of the modification
"""
from gudhi.weighted_rips_complex import WeightedRipsComplex
from gudhi.point_cloud.dtm import DTM
import numpy
from scipy.spatial.distance import cdist
import pytest
def test_dtm_rips_complex():
pts = numpy.array([[2.0, 2], [0, 1], [3, 4]])
dist = cdist(pts,pts)
dtm = DTM(2, q=2, metric="precomputed")
r = dtm.fit_transform(dist)
w_rips = WeightedRipsComplex(distance_mattix=dist, filtration_values=r)
st = w_rips.create_simplex_tree(max_dimension=2)
diag = st.persistence()
assert diag == [(0, (1.5811388300841898, float("inf"))), (0, (1.5811388300841898, 2.699172818834085)), (0, (1.5811388300841898, 2.699172818834085))]
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