def test_fetch_neurovault():
with _TestTemporaryDirectory() as temp_dir:
# check that nothing is downloaded in offline mode
data = neurovault.fetch_neurovault(mode='offline', data_dir=temp_dir)
assert_equal(len(data.images), 0)
# try to download an image
data = neurovault.fetch_neurovault(max_images=1,
fetch_neurosynth_words=True,
mode='overwrite',
data_dir=temp_dir)
# specifying a filter while leaving the default term
# filters in place should raise a warning.
assert_warns(UserWarning,
neurovault.fetch_neurovault,
image_filter=lambda x: True,
max_images=1,
mode='offline')
# if neurovault was available one image matching
# default filters should have been downloaded
if data.images:
assert_equal(len(data.images), 1)
meta = data.images_meta[0]
assert_false(meta['not_mni'])
assert_true(meta['is_valid'])
assert_false(meta['not_mni'])
assert_false(meta['is_thresholded'])
assert_false(
meta['map_type'] in ['ROI/mask', 'anatomical', 'parcellation'])
assert_false(meta['image_type'] == 'atlas')
# using a data directory we can't write into should raise a
# warning unless mode is 'offline'
os.chmod(temp_dir, stat.S_IREAD | stat.S_IEXEC)
os.chmod(os.path.join(temp_dir, 'neurovault'),
stat.S_IREAD | stat.S_IEXEC)
if os.access(os.path.join(temp_dir, 'neurovault'), os.W_OK):
return
assert_warns(UserWarning,
neurovault.fetch_neurovault,
data_dir=temp_dir)
def test_fetch_neurovault(tmp_path):
# check that nothing is downloaded in offline mode
data = neurovault.fetch_neurovault(mode='offline', data_dir=str(tmp_path))
assert len(data.images) == 0
# try to download an image
data = neurovault.fetch_neurovault(max_images=11,
fetch_neurosynth_words=True,
mode='overwrite',
data_dir=str(tmp_path))
# specifying a filter while leaving the default term
# filters in place should raise a warning.
with pytest.warns(UserWarning):
neurovault.fetch_neurovault(image_filter=lambda x: True,
max_images=1,
mode='offline')
assert data.images
assert len(data.images) == 11
for meta in data.images_meta:
assert not meta['not_mni']
assert not meta['is_thresholded']
assert not meta['map_type'] in [
'ROI/mask', 'anatomical', 'parcellation'
]
assert not meta['image_type'] == 'atlas'
# using a data directory we can't write into should raise a
# warning unless mode is 'offline'
os.chmod(str(tmp_path), stat.S_IREAD | stat.S_IEXEC)
os.chmod(os.path.join(str(tmp_path), 'neurovault'),
stat.S_IREAD | stat.S_IEXEC)
if os.access(os.path.join(str(tmp_path), 'neurovault'), os.W_OK):
return
with pytest.warns(UserWarning):
neurovault.fetch_neurovault(data_dir=str(tmp_path))
def test_fetch_neurovault():
with _TestTemporaryDirectory() as temp_dir:
# check that nothing is downloaded in offline mode
data = neurovault.fetch_neurovault(
mode='offline', data_dir=temp_dir)
assert_equal(len(data.images), 0)
# try to download an image
data = neurovault.fetch_neurovault(
max_images=1, fetch_neurosynth_words=True,
mode='overwrite', data_dir=temp_dir)
# specifying a filter while leaving the default term
# filters in place should raise a warning.
assert_warns(UserWarning, neurovault.fetch_neurovault,
image_filter=lambda x: True, max_images=1,
mode='offline')
# if neurovault was available one image matching
# default filters should have been downloaded
if data.images:
assert_equal(len(data.images), 1)
meta = data.images_meta[0]
assert_false(meta['not_mni'])
assert_true(meta['is_valid'])
assert_false(meta['not_mni'])
assert_false(meta['is_thresholded'])
assert_false(meta['map_type'] in [
'ROI/mask', 'anatomical', 'parcellation'])
assert_false(meta['image_type'] == 'atlas')
# using a data directory we can't write into should raise a
# warning unless mode is 'offline'
os.chmod(temp_dir, stat.S_IREAD | stat.S_IEXEC)
os.chmod(os.path.join(temp_dir, 'neurovault'),
stat.S_IREAD | stat.S_IEXEC)
if os.access(os.path.join(temp_dir, 'neurovault'), os.W_OK):
return
assert_warns(UserWarning, neurovault.fetch_neurovault,
data_dir=temp_dir)
def test_fetch_neurovault_errors(request_mocker):
request_mocker.url_mapping["*"] = 500
data = neurovault.fetch_neurovault()
assert len(data.images) == 0