def test_read_persistence_intervals_without_dimension():
# Create test file
test_file = open("persistence_intervals_without_dimension.pers", "w")
test_file.write(
"# Simple persistence diagram without dimension\n2.7 3.7\n9.6 14.\n34.2 34.974\n3. inf"
)
test_file.close()
persistence = gudhi.read_persistence_intervals_in_dimension(
persistence_file="persistence_intervals_without_dimension.pers")
np.testing.assert_array_equal(persistence, [(2.7, 3.7), (9.6, 14.0),
(34.2, 34.974),
(3.0, float("Inf"))])
persistence = gudhi.read_persistence_intervals_in_dimension(
persistence_file="persistence_intervals_without_dimension.pers",
only_this_dim=0)
np.testing.assert_array_equal(persistence, [])
persistence = gudhi.read_persistence_intervals_in_dimension(
persistence_file="persistence_intervals_without_dimension.pers",
only_this_dim=1)
np.testing.assert_array_equal(persistence, [])
persistence = gudhi.read_persistence_intervals_grouped_by_dimension(
persistence_file="persistence_intervals_without_dimension.pers")
assert persistence == {
-1: [(2.7, 3.7), (9.6, 14.0), (34.2, 34.974), (3.0, float("Inf"))]
}
def test_non_existing_persistence_file():
# Try to open a non existing file
persistence = gudhi.read_persistence_intervals_grouped_by_dimension(
persistence_file="pouetpouettralala.toubiloubabdou")
assert persistence == []
persistence = gudhi.read_persistence_intervals_in_dimension(
persistence_file="pouetpouettralala.toubiloubabdou", only_this_dim=1)
np.testing.assert_array_equal(persistence, [])
