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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): Hind Montassif
#
# Copyright (C) 2021 Inria
#
# Modification(s):
# - YYYY/MM Author: Description of the modification
from gudhi.datasets import remote
import shutil
import io
import sys
import pytest
from os.path import isdir, expanduser, exists
from os import remove, environ
def test_data_home():
# Test _get_data_home and clear_data_home on new empty folder
empty_data_home = remote._get_data_home(data_home="empty_folder_for_test")
assert isdir(empty_data_home)
remote.clear_data_home(data_home=empty_data_home)
assert not isdir(empty_data_home)
def test_fetch_remote():
# Test fetch with a wrong checksum
with pytest.raises(OSError):
remote._fetch_remote("https://raw.githubusercontent.com/GUDHI/gudhi-data/main/points/spiral_2d/spiral_2d.npy", "tmp_spiral_2d.npy", file_checksum = 'XXXXXXXXXX')
assert not exists("tmp_spiral_2d.npy")
def _get_bunny_license_print(accept_license = False):
capturedOutput = io.StringIO()
# Redirect stdout
sys.stdout = capturedOutput
bunny_arr = remote.fetch_bunny("./tmp_for_test/bunny.npy", accept_license)
assert bunny_arr.shape == (35947, 3)
del bunny_arr
remove("./tmp_for_test/bunny.npy")
# Reset redirect
sys.stdout = sys.__stdout__
return capturedOutput
def test_print_bunny_license():
# Test not printing bunny.npy LICENSE when accept_license = True
assert "" == _get_bunny_license_print(accept_license = True).getvalue()
# Test printing bunny.LICENSE file when fetching bunny.npy with accept_license = False (default)
with open("./tmp_for_test/bunny.LICENSE") as f:
assert f.read().rstrip("\n") == _get_bunny_license_print().getvalue().rstrip("\n")
shutil.rmtree("./tmp_for_test")
def test_fetch_remote_datasets_wrapped():
# Test fetch_spiral_2d and fetch_bunny wrapping functions with data directory different from default (twice, to test case of already fetched files)
# Default case is not tested because it would fail in case the user sets the 'GUDHI_DATA' environment variable locally
for i in range(2):
spiral_2d_arr = remote.fetch_spiral_2d("./another_fetch_folder_for_test/spiral_2d.npy")
assert spiral_2d_arr.shape == (114562, 2)
bunny_arr = remote.fetch_bunny("./another_fetch_folder_for_test/bunny.npy")
assert bunny_arr.shape == (35947, 3)
# Check that the directory was created
assert isdir("./another_fetch_folder_for_test")
# Check downloaded files
assert exists("./another_fetch_folder_for_test/spiral_2d.npy")
assert exists("./another_fetch_folder_for_test/bunny.npy")
assert exists("./another_fetch_folder_for_test/bunny.LICENSE")
# Remove test folders
del spiral_2d_arr
del bunny_arr
shutil.rmtree("./another_fetch_folder_for_test")
def test_gudhi_data_env():
# Set environment variable "GUDHI_DATA"
environ["GUDHI_DATA"] = "./test_folder_from_env_var"
bunny_arr = remote.fetch_bunny()
assert bunny_arr.shape == (35947, 3)
assert exists("./test_folder_from_env_var/points/bunny/bunny.npy")
assert exists("./test_folder_from_env_var/points/bunny/bunny.LICENSE")
# Remove test folder
del bunny_arr
shutil.rmtree("./test_folder_from_env_var")
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