diff options
Diffstat (limited to 'src/python/test/test_simplex_tree.py')
-rwxr-xr-x | src/python/test/test_simplex_tree.py | 58 |
1 files changed, 52 insertions, 6 deletions
diff --git a/src/python/test/test_simplex_tree.py b/src/python/test/test_simplex_tree.py index 83be0602..a3eacaa9 100755 --- a/src/python/test/test_simplex_tree.py +++ b/src/python/test/test_simplex_tree.py @@ -8,7 +8,7 @@ - YYYY/MM Author: Description of the modification """ -from gudhi import SimplexTree +from gudhi import SimplexTree, __GUDHI_USE_EIGEN3 import pytest __author__ = "Vincent Rouvreau" @@ -353,8 +353,54 @@ def test_collapse_edges(): assert st.num_simplices() == 10 - st.collapse_edges() - assert st.num_simplices() == 9 - assert st.find([1, 3]) == False - for simplex in st.get_skeleton(0): - assert simplex[1] == 1. + if __GUDHI_USE_EIGEN3: + st.collapse_edges() + assert st.num_simplices() == 9 + assert st.find([1, 3]) == False + for simplex in st.get_skeleton(0): + assert simplex[1] == 1. + else: + # If no Eigen3, collapse_edges throws an exception + with pytest.raises(RuntimeError): + st.collapse_edges() + +def test_reset_filtration(): + st = SimplexTree() + + assert st.insert([0, 1, 2], 3.) == True + assert st.insert([0, 3], 2.) == True + assert st.insert([3, 4, 5], 3.) == True + assert st.insert([0, 1, 6, 7], 4.) == True + + # Guaranteed by construction + for simplex in st.get_simplices(): + assert st.filtration(simplex[0]) >= 2. + + # dimension until 5 even if simplex tree is of dimension 3 to test the limits + for dimension in range(5, -1, -1): + st.reset_filtration(0., dimension) + for simplex in st.get_skeleton(3): + print(simplex) + if len(simplex[0]) < (dimension) + 1: + assert st.filtration(simplex[0]) >= 2. + else: + assert st.filtration(simplex[0]) == 0. + +def test_boundaries_iterator(): + st = SimplexTree() + + assert st.insert([0, 1, 2, 3], filtration=1.0) == True + assert st.insert([1, 2, 3, 4], filtration=2.0) == True + + assert list(st.get_boundaries([1, 2, 3])) == [([1, 2], 1.0), ([1, 3], 1.0), ([2, 3], 1.0)] + assert list(st.get_boundaries([2, 3, 4])) == [([2, 3], 1.0), ([2, 4], 2.0), ([3, 4], 2.0)] + assert list(st.get_boundaries([2])) == [] + + with pytest.raises(RuntimeError): + list(st.get_boundaries([])) + + with pytest.raises(RuntimeError): + list(st.get_boundaries([0, 4])) # (0, 4) does not exist + + with pytest.raises(RuntimeError): + list(st.get_boundaries([6])) # (6) does not exist |