def test_automatic_dimension(): st = SimplexTree() assert st.__is_defined() == True assert st.__is_persistence_defined() == False # insert test assert st.insert([0, 1, 3], filtration=0.5) == True assert st.insert([0, 1, 2], filtration=1.0) == True assert st.num_vertices() == 4 assert st.num_simplices() == 11 assert st.dimension() == 2 assert st.upper_bound_dimension() == 2 assert st.prune_above_filtration(0.6) == True assert st.dimension() == 2 assert st.upper_bound_dimension() == 2 st.assign_filtration([0, 1, 3], 0.7) assert st.filtration([0, 1, 3]) == 0.7 st.remove_maximal_simplex([0, 1, 3]) assert st.upper_bound_dimension() == 2 assert st.dimension() == 1 assert st.upper_bound_dimension() == 1
def test_insertion(): st = SimplexTree() assert st.__is_defined() == True assert st.__is_persistence_defined() == False # insert test assert st.insert([0, 1]) == True assert st.dimension() == 1 assert st.insert([0, 1, 2], filtration=4.0) == True assert st.dimension() == 2 assert st.num_simplices() == 7 assert st.num_vertices() == 3 # find test assert st.find([0, 1, 2]) == True assert st.find([0, 1]) == True assert st.find([0, 2]) == True assert st.find([0]) == True assert st.find([1]) == True assert st.find([2]) == True assert st.find([3]) == False assert st.find([0, 3]) == False assert st.find([1, 3]) == False assert st.find([2, 3]) == False # filtration test assert st.filtration([0, 1, 2]) == 4.0 assert st.filtration([0, 2]) == 4.0 assert st.filtration([1, 2]) == 4.0 assert st.filtration([2]) == 4.0 assert st.filtration([0, 1]) == 0.0 assert st.filtration([0]) == 0.0 assert st.filtration([1]) == 0.0 # skeleton test assert list(st.get_skeleton(2)) == [ ([0, 1, 2], 4.0), ([0, 1], 0.0), ([0, 2], 4.0), ([0], 0.0), ([1, 2], 4.0), ([1], 0.0), ([2], 4.0), ] assert list(st.get_skeleton(1)) == [ ([0, 1], 0.0), ([0, 2], 4.0), ([0], 0.0), ([1, 2], 4.0), ([1], 0.0), ([2], 4.0), ] assert list(st.get_skeleton(0)) == [([0], 0.0), ([1], 0.0), ([2], 4.0)] # remove_maximal_simplex test assert st.get_cofaces([0, 1, 2], 1) == [] st.remove_maximal_simplex([0, 1, 2]) assert list(st.get_skeleton(2)) == [ ([0, 1], 0.0), ([0, 2], 4.0), ([0], 0.0), ([1, 2], 4.0), ([1], 0.0), ([2], 4.0), ] assert st.find([0, 1, 2]) == False assert st.find([0, 1]) == True assert st.find([0, 2]) == True assert st.find([0]) == True assert st.find([1]) == True assert st.find([2]) == True assert st.persistence(persistence_dim_max=True) == [ (1, (4.0, float("inf"))), (0, (0.0, float("inf"))), ] assert st.__is_persistence_defined() == True assert st.betti_numbers() == [1, 1] assert st.persistent_betti_numbers(-0.1, 10000.0) == [0, 0] assert st.persistent_betti_numbers(0.0, 10000.0) == [1, 0] assert st.persistent_betti_numbers(3.9, 10000.0) == [1, 0] assert st.persistent_betti_numbers(4.0, 10000.0) == [1, 1] assert st.persistent_betti_numbers(9999.0, 10000.0) == [1, 1]