def __init__(self):
# Build paths of MNIST dataset
self.train_data_path = fm.join(MNIST_PATH, 'train-images-idx3-ubyte')
self.train_labels_path = fm.join(MNIST_PATH, 'train-labels-idx1-ubyte')
self.test_data_path = fm.join(MNIST_PATH, 't10k-images-idx3-ubyte')
self.test_labels_path = fm.join(MNIST_PATH, 't10k-labels-idx1-ubyte')
with CDataLoaderMNIST.__lock:
# For each file check if already downloaded and extracted
if not fm.file_exist(self.train_data_path) or \
md5(self.train_data_path) != TRAIN_DATA_MD5:
self._get_data(TRAIN_DATA_FILE, MNIST_PATH,
self.train_data_path, TRAIN_DATA_MD5)
if not fm.file_exist(self.train_labels_path) or \
md5(self.train_labels_path) != TRAIN_LABELS_MD5:
self._get_data(TRAIN_LABELS_FILE, MNIST_PATH,
self.train_labels_path, TRAIN_LABELS_MD5)
if not fm.file_exist(self.test_data_path) or \
md5(self.test_data_path) != TEST_DATA_MD5:
self._get_data(TEST_DATA_FILE, MNIST_PATH, self.test_data_path,
TEST_DATA_MD5)
if not fm.file_exist(self.test_labels_path) or \
md5(self.test_labels_path) != TEST_LABELS_MD5:
self._get_data(TEST_LABELS_FILE, MNIST_PATH,
self.test_labels_path, TEST_LABELS_MD5)
def tearDown(self):
# Remove existing 'models_dict.json' before testing
if fm.file_exist(MODELS_DICT_PATH):
fm.remove_file(MODELS_DICT_PATH)
# Removing folder with test model (force 'cause not empty)
if fm.folder_exist(fm.join(SECML_MODELS_DIR, '_test')):
fm.remove_folder(fm.join(SECML_MODELS_DIR, '_test'), force=True)
def __init__(self):
self._train_path = fm.join(ICUBWORLD28_PATH, 'train')
self._test_path = fm.join(ICUBWORLD28_PATH, 'test')
with CDataLoaderICubWorld28.__lock:
# Download (if needed) data and extract it
if not fm.folder_exist(self._train_path) \
or not fm.folder_exist(self._test_path):
self._get_data(ICUBWORLD28_URL, ICUBWORLD28_PATH)
def _load_files(self,
dir_path,
img_w,
img_h,
img_c,
img_ext,
label_re=None,
load_data=True):
"""Loads any file with given extension inside input folder."""
# Folders/files will be loaded in alphabetical order
files_list = sorted(fm.listdir(dir_path))
# Placeholder for patterns/labels CArray
patterns = None
labels = None
for file_name in files_list:
# Full path to image file
file_path = fm.join(dir_path, file_name)
# Load only files of the specified format
if fm.splitext(file_name)[1].lower() == img_ext:
# Opening image in lazy mode (to verify dimensions etc.)
img = Image.open(file_path)
# Storing image dimensions...
img_w = img_w.append(img.width)
img_h = img_h.append(img.height)
img_c = img_c.append(len(img.getbands()))
# If load_data is True, store features, else store path
if load_data is True:
# Storing image as a 2D CArray
array_img = CArray(img.getdata()).ravel().atleast_2d()
else:
array_img = CArray([[file_path]])
# Creating the 2D array patterns x features
patterns = patterns.append(
array_img, axis=0) if patterns is not None else array_img
# Consider only the directory name to set the label
dir_name = fm.split(dir_path)[1]
# label is the image's containing folder name or the re result
c_id = dir_name if label_re is None \
else re.search(label_re, dir_name).group(0)
labels = labels.append(c_id) if labels is not None \
else CArray(c_id)
self.logger.debug("{:} has been loaded..."
"".format(fm.join(dir_path, file_name)))
return patterns, labels, img_w, img_h, img_c
def _explore_dir(self,
dir_path,
img_w,
img_h,
img_c,
img_ext,
label_re=None,
load_data=True):
"""Explore input directory and load files if leaf."""
# Folders/files will be loaded in alphabetical order
items_list = sorted(fm.listdir(dir_path))
# A leaf folder is a folder with only files in it
leaf = not any(
fm.folder_exist(fm.join(dir_path, item)) for item in items_list)
if leaf is True: # Leaf directory, time to load files!
return self._load_files(dir_path,
img_w,
img_h,
img_c,
img_ext,
label_re=label_re,
load_data=load_data)
# Placeholder for patterns/labels CArray
patterns = None
labels = None
for subdir in items_list:
subdir_path = fm.join(dir_path, subdir)
# Only consider folders (there could be also files)
if not fm.folder_exist(subdir_path):
continue
# Explore next subfolder
patterns_new, labels_new, img_w, img_h, img_c = self._explore_dir(
subdir_path,
img_w,
img_h,
img_c,
img_ext,
label_re=label_re,
load_data=load_data)
patterns = patterns.append(patterns_new, axis=0) \
if patterns is not None else patterns_new
labels = labels.append(labels_new) \
if labels is not None else labels_new
return patterns, labels, img_w, img_h, img_c
def setUpClass(cls):
CUnitTest.setUpClass()
# We now prepare all the urls and path required to mock requests
# via gitlab API to https://gitlab.com/secml/secml-zoo repository
# Fake models definitions
cls.test_models_def = \
fm.join(fm.abspath(__file__), 'models_dict_test.json')
# Test model's definition
cls.test_model_id = '_test_model'
cls.test_model = \
fm.join(fm.abspath(__file__), '_test_model_clf.py')
cls.test_model_state = \
fm.join(fm.abspath(__file__), '_test_model-clf.gz')
# Url for mocking requests to the model zoo repository
repo = parse.quote('secml/secml-zoo', safe='')
file_model = parse.quote('models/_test/_test_model_clf.py', safe='')
file_state = parse.quote('models/_test/_test_model-clf.gz', safe='')
file_defs = parse.quote('models_dict.json', safe='')
vers = 'v' + re.search(r'^\d+.\d+', secml.__version__).group(0)
api_url = 'https://gitlab.com/api/v4/projects/' \
'{:}/repository/files/{:}/raw?ref={:}'
# One url for master branch, one for current library version
# One for model file, one for state file
cls.api_url_model_master = api_url.format(repo, file_model, 'master')
cls.api_url_model_vers = api_url.format(repo, file_model, vers)
cls.api_url_state_master = api_url.format(repo, file_state, 'master')
cls.api_url_state_vers = api_url.format(repo, file_state, vers)
cls.api_url_defs_master = api_url.format(repo, file_defs, 'master')
cls.api_url_defs_vers = api_url.format(repo, file_defs, vers)
cls.api_model_headers = {
'Content-Disposition': r'inline; filename="_test_model_clf.py"'
}
cls.api_state_headers = {
'Content-Disposition': r'inline; filename="_test_model-clf.gz"'
}
cls.api_defs_headers = {
'Content-Disposition': r'inline; filename="models_dict.json"'
}
# Set the debug level of models loader to debug
_logger.set_level('DEBUG')
def _test_load_model(self, defs_url, model_url, state_url):
"""Test for `load_model` valid behavior.
We test the following:
- all valid requests
- a need for updating models dict and redownload model
- a need for updating models dict and redownload model
with a connection error when download models dict
Parameters
----------
defs_url : str or None, optional
model_url : str or None, optional
state_url : str or None, optional
"""
with requests_mock.Mocker() as m:
# Simulate a fine process, with all resources available
self._mock_requests(m,
defs_url=defs_url,
model_url=model_url,
state_url=state_url)
self._check_test_model() # Call model loading
# We now simulate a need for `models_dict.json` update
# by removing `.last_update` file
fm.remove_file(fm.join(SECML_MODELS_DIR, '.last_update'))
# Also remove test model to force re-download
fm.remove_folder(fm.join(SECML_MODELS_DIR, '_test'), force=True)
self._check_test_model() # Call model loading
# We now simulate a need for `models_dict.json` update,
# but a connection error occurs (simulated by not mocking dl url)
# Last available version of models dict should be used
fm.remove_file(fm.join(SECML_MODELS_DIR, '.last_update'))
fm.remove_folder(fm.join(SECML_MODELS_DIR, '_test'), force=True)
with requests_mock.Mocker() as m:
# Do not mock the url for models definitions
self._mock_requests(m,
defs_url=None,
model_url=model_url,
state_url=state_url)
self._check_test_model() # Call model loading
def test_plot(self):
""" Compare the classifiers graphically"""
ds = CDLRandomBlobs(n_samples=100, centers=3, n_features=2,
random_state=1).load()
fig = self._test_plot(self.nc, ds, [-10])
fig.savefig(fm.join(fm.abspath(__file__), 'figs',
'test_c_classifier_nearest_centroid.pdf'))
def test_load_paths(self):
"""Testing img dataset path loading."""
dl = CDataLoaderImgClients()
self.logger.info("Testing loading paths of clients dataset...")
ds_path = fm.join(fm.abspath(__file__), "ds_clients")
ds = dl.load(ds_path=ds_path, img_format='jpeg', load_data=False)
self.logger.info(
"Loaded {:} images of {:} features, {:} classes".format(
ds.num_samples, ds.num_features, ds.num_classes))
# TODO: USE 'U' AFTER TRANSITION TO PYTHON 3
self.assertIn(ds.X.dtype.char, ('S', 'U'))
# Checking correct label-img association
self.assertEqual(ds.Y[0].item(),
fm.split(ds.X[0, :].item())[1].replace('.jpeg', ''))
self.assertEqual(ds.Y[1].item(),
fm.split(ds.X[1, :].item())[1].replace('.jpeg', ''))
# Checking behavior of `get_labels_ovr`
ovr = ds.get_labels_ovr(pos_label='tiger') # Y : ['coyote', 'tiger']
self.assert_array_equal(ovr, CArray([0, 1]))
def test_plot(self):
""" Compare the classifiers graphically"""
ds = CDLRandomBlobs(n_samples=100, centers=3, n_features=2,
random_state=1).load()
fig = self._test_plot(self.rnd_forest, ds, levels=[0.5])
fig.savefig(fm.join(fm.abspath(__file__), 'figs',
'test_c_classifier_random_forest.pdf'))
def _load_class_names(self, meta_file, class_names_key):
"""Load the names for the classes in the CIFAR dataset.
Parameters
----------
meta_file : str
Name of the metafile where the labels are stored.
class_names_key : bytes
Dictionary key where the labels are stored.
Returns
----------
dict
A dictionary with the label of each class.
"""
meta_file_url = fm.join(self.data_path, meta_file)
# Load the class-names from the pickled file.
with open(meta_file_url, 'rb') as mf:
raw = pickle.load(mf, encoding='bytes')[class_names_key]
# Convert from binary strings.
names = {i: x.decode('utf-8') for i, x in enumerate(raw)}
return names
def _test_plot(self, evas):
"""Check if `stored_vars` is correctly populated.
Parameters
----------
evas : CAttackEvasionCleverhans
"""
if self.make_figures is False:
self.logger.debug("Skipping figures...")
return
fig = CFigure()
fig.sp.plot_path(evas.x_seq)
fig.sp.plot_fun(evas.objective_function,
plot_levels=False,
multipoint=True,
n_grid_points=50)
fig.sp.plot_decision_regions(self.clf,
plot_background=False,
n_grid_points=100)
fig.title("ATTACK: {}, y_target: {}".format(
evas._clvrh_attack_class.__name__, self.y_target))
name_file = '{}_evasion2D_target_{}.pdf'.format(
evas._clvrh_attack_class.__name__, self.y_target)
fig.savefig(fm.join(self.images_folder, name_file), file_format='pdf')
def test_plot(self):
""" Compare the classifiers graphically"""
ds = CDLRandom(n_features=2, n_redundant=0, n_informative=2,
n_clusters_per_class=1, random_state=0).load()
ds.X = CNormalizerMinMax().fit_transform(ds.X)
fig = self._test_plot(self.ridges[0], ds)
fig.savefig(fm.join(fm.abspath(__file__), 'figs',
'test_c_classifier_ridge.pdf'))
def test_plot(self):
ds = CDLRandomBlobs(n_samples=100,
centers=3,
n_features=2,
random_state=1).load()
fig = self._test_plot(self.knn, ds, levels=[0.5])
fig.savefig(
fm.join(fm.abspath(__file__), 'figs', 'test_c_classifier_knn.pdf'))
def _save_fig(self):
"""Visualizing the function being optimized with line search."""
x_range = CArray.arange(-5, 20, 0.5, )
score_range = x_range.T.apply_along_axis(self.fun.fun, axis=1)
ref_line = CArray.zeros(x_range.size)
fig = CFigure(height=6, width=12)
fig.sp.plot(x_range, score_range, color='b')
fig.sp.plot(x_range, ref_line, color='k')
filename = fm.join(fm.abspath(__file__), 'test_line_search_bisect.pdf')
fig.savefig(filename)
def _load_files(self,
ds_path,
img_w,
img_h,
img_c,
img_ext,
load_data=True):
"""Loads any file with given extension inside input folder."""
# Files will be loaded in alphabetical order
files_list = sorted(fm.listdir(ds_path))
# Placeholder for patterns CArray
patterns = None
for file_name in files_list:
# Full path to image file
file_path = fm.join(ds_path, file_name)
# Load only files of the specified format
if fm.splitext(file_name)[1].lower() == img_ext:
# Opening image in lazy mode (to verify dimensions etc.)
img = Image.open(file_path)
# Storing image dimensions...
img_w = img_w.append(img.width)
img_h = img_h.append(img.height)
img_c = img_c.append(len(img.getbands()))
# If load_data is True, store features, else store path
if load_data is True:
# Storing image as a 2D CArray
array_img = CArray(img.getdata()).ravel().atleast_2d()
else:
array_img = CArray([[file_path]])
# Creating the 2D array patterns x features
patterns = patterns.append(
array_img, axis=0) if patterns is not None else array_img
self.logger.debug("{:} has been loaded..."
"".format(fm.join(ds_path, file_name)))
return patterns, img_w, img_h, img_c
def test_save_and_load_svmlight_file(self):
"""Testing libsvm dataset loading and saving."""
self.logger.info("Testing libsvm dataset loading and saving...")
test_file = fm.join(fm.abspath(__file__), "myfile.libsvm")
# Cleaning test file
try:
fm.remove_file(test_file)
except (OSError, IOError) as e:
if e.errno != 2:
raise e
self.logger.info("Patterns saved:\n{:}".format(self.patterns))
self.logger.info("Labels saved:\n{:}".format(self.labels))
CDataLoaderSvmLight.dump(CDataset(self.patterns, self.labels),
test_file)
new_dataset = CDataLoaderSvmLight().load(test_file)
self.assertFalse((new_dataset.X != self.patterns).any())
self.assertFalse((new_dataset.Y != self.labels).any())
# load data but now remove all zero features (colums)
new_dataset = CDataLoaderSvmLight().load(test_file,
remove_all_zero=True)
self.logger.info("Patterns loaded:\n{:}".format(new_dataset.X))
self.logger.info("Labels loaded:\n{:}".format(new_dataset.Y))
self.logger.info("Mapping back:\n{:}".format(
new_dataset.header.idx_mapping))
self.assertTrue(new_dataset.X.issparse)
self.assertTrue(new_dataset.Y.isdense)
self.assertTrue(new_dataset.header.idx_mapping.isdense)
# non-zero elements should be unchanged
self.assertEqual(self.patterns.nnz, new_dataset.X.nnz)
new_nnz_data = new_dataset.X.nnz_data
self.assertFalse((self.patterns.nnz_data != new_nnz_data.sort()).any())
# With idx_mapping we should be able to reconstruct original data
original = CArray.zeros(self.patterns.shape, sparse=True)
original[:, new_dataset.header.idx_mapping] = new_dataset.X
self.assertFalse((self.patterns != original).any())
# Cleaning test file
try:
fm.remove_file(test_file)
except (OSError, IOError) as e:
if e.errno != 2:
raise e
def test_ps_kmedians(self):
rule = 'k-medians'
self.logger.info("Testing: " + rule + " selector.")
ps = CPrototypesSelector.create(rule)
ps.verbose = 2
ds_reduced = ps.select(self.dataset, n_prototypes=20, random_state=0)
if self.plots is True:
self.draw_selection(ds_reduced, rule)
# k_means in sklearn > 0.24 returns a different result
import sklearn
from pkg_resources import parse_version
if parse_version(sklearn.__version__) < parse_version("0.24"):
idx_path = fm.join(fm.abspath(__file__), "idx_{:}.gz".format(rule))
else:
idx_path = fm.join(fm.abspath(__file__),
"idx_{:}_sk0-24.gz".format(rule))
self.assert_array_equal(ps.sel_idx,
CArray.load(idx_path, dtype=int).ravel())
def clean_tmp():
"""Cleans temporary files created by the DB loader.
This method deletes the joblib-related files created while loading
the database.
Does not delete the downloaded database archive.
"""
jl_tmp_folder = fm.join(SECML_DS_DIR, 'lfw_home', 'joblib')
if fm.folder_exist(jl_tmp_folder):
fm.remove_folder(jl_tmp_folder, force=True)
def _load_mnist():
"""Load MNIST 4971 dataset."""
digits = [4, 9, 7, 1]
digits_str = "".join(['{:}-'.format(i) for i in digits[:-1]])
digits_str += '{:}'.format(digits[-1])
# FIXME: REMOVE THIS AFTER CDATALOADERS AUTOMATICALLY STORE DS
tr_file = fm.join(fm.abspath(__file__),
'mnist_tr_{:}.gz'.format(digits_str))
if not fm.file_exist(tr_file):
loader = CDataLoaderMNIST()
tr = loader.load('training', digits=digits)
pickle_utils.save(tr_file, tr)
else:
tr = pickle_utils.load(tr_file, encoding='latin1')
ts_file = fm.join(fm.abspath(__file__),
'mnist_ts_{:}.gz'.format(digits_str))
if not fm.file_exist(ts_file):
loader = CDataLoaderMNIST()
ts = loader.load('testing', digits=digits)
pickle_utils.save(ts_file, ts)
else:
ts = pickle_utils.load(ts_file, encoding='latin1')
idx = CArray.arange(tr.num_samples)
val_dts_idx = CArray.randsample(idx, 200, random_state=0)
val_dts = tr[val_dts_idx, :]
tr_dts_idx = CArray.randsample(idx, 200, random_state=0)
tr = tr[tr_dts_idx, :]
idx = CArray.arange(0, ts.num_samples)
ts_dts_idx = CArray.randsample(idx, 200, random_state=0)
ts = ts[ts_dts_idx, :]
tr.X /= 255.0
ts.X /= 255.0
return tr, val_dts, ts, digits, tr.header.img_w, tr.header.img_h
def _plot_2d_evasion(self, evas, ds, x0, filename, th=0, grid_limits=None):
"""Plot evasion attack results for 2D data.
Parameters
----------
evas : CAttackEvasion
ds : CDataset
x0 : CArray
Initial attack point.
filename : str
Name of the output pdf file.
th : scalar, optional
Scores threshold of the classifier. Default 0.
grid_limits : list of tuple or None, optional
If not specified, will be set as [(-1.5, 1.5), (-1.5, 1.5)].
"""
if self.make_figures is False:
self.logger.debug("Skipping figures...")
return
fig = CFigure(height=6, width=6)
if grid_limits is None:
grid_limits = [(-1.5, 1.5), (-1.5, 1.5)]
fig.sp.plot_ds(ds)
fig.sp.plot_fun(func=evas.objective_function,
grid_limits=grid_limits,
colorbar=False,
n_grid_points=50,
plot_levels=False)
fig.sp.plot_decision_regions(clf=evas.classifier,
plot_background=False,
grid_limits=grid_limits,
n_grid_points=50)
fig.sp.plot_constraint(self._box(evas),
n_grid_points=20,
grid_limits=grid_limits)
fig.sp.plot_fun(func=lambda z: self._constr(evas, x0).constraint(z),
plot_background=False,
n_grid_points=50,
grid_limits=grid_limits,
levels=[0],
colorbar=False)
fig.sp.plot_path(evas.x_seq)
fig.savefig(fm.join(self.images_folder, filename), file_format='pdf')
def _get_data(self, file_url, dl_folder):
"""Download input datafile, unzip and store in output_path.
Parameters
----------
file_url : str
URL of the file to download.
dl_folder : str
Path to the folder where to store the downloaded file.
"""
f_dl = fm.join(dl_folder, 'iCubWorld28_128x128.zip?dl=1')
if not fm.file_exist(f_dl) or md5(f_dl) != ICUBWORLD28_MD5:
# Generate the full path to the downloaded file
f_dl = dl_file(file_url, dl_folder, md5_digest=ICUBWORLD28_MD5)
self.logger.info("Extracting files...")
# Extract the content of downloaded file
zipfile.ZipFile(f_dl, 'r').extractall(dl_folder)
# Remove downloaded file
fm.remove_file(f_dl)
# iCubWorld28 zip file contains a macosx private folder, clean it up
if fm.folder_exist(fm.join(ICUBWORLD28_PATH, '__MACOSX')):
fm.remove_folder(fm.join(ICUBWORLD28_PATH, '__MACOSX'), force=True)
# iCubWorld28 zip file contains a macosx private files, clean it up
for dirpath, dirnames, filenames in os.walk(ICUBWORLD28_PATH):
for file in filenames:
if fnmatch(file, '.DS_Store'):
fm.remove_file(fm.join(dirpath, file))
# Now move all data to an upper folder if needed
if not fm.folder_exist(self._train_path) \
or not fm.folder_exist(self._test_path):
sub_d = fm.join(dl_folder, fm.listdir(dl_folder)[0])
for e in fm.listdir(sub_d):
e_full = fm.join(sub_d, e) # Full path to current element
try: # Call copy_file or copy_folder when applicable
if fm.file_exist(e_full) is True:
fm.copy_file(e_full, dl_folder)
elif fm.folder_exist(e_full) is True:
fm.copy_folder(e_full, fm.join(dl_folder, e))
except:
pass
# Check that the main dataset file is now in the correct folder
if not fm.folder_exist(self._train_path) \
or not fm.folder_exist(self._test_path):
raise RuntimeError("dataset main file not available!")
# The subdirectory can now be removed
fm.remove_folder(sub_d, force=True)
def test_save_load(self):
a = CArray([1, 2, 3]) # Dummy test array
# Generate a temp file to test
import tempfile
tempdir = tempfile.gettempdir()
tempfile = fm.join(tempdir, 'secml_testpickle')
tempfile = pickle_utils.save(tempfile, a)
a_loaded = pickle_utils.load(tempfile)
self.assert_array_equal(a_loaded, a)
def test_load_img(self):
"""Testing img dataset loading."""
dl = CDataLoaderImgFolders()
self.logger.info("Testing loading rgb dataset...")
ds_rgb_path = fm.join(fm.abspath(__file__), "ds_rgb")
ds = dl.load(ds_path=ds_rgb_path, img_format='jpeg')
self.logger.info(
"Loaded {:} images of {:} features, {:} classes".format(
ds.num_samples, ds.num_features, ds.num_classes))
self.assertEqual((2, 151875), ds.X.shape)
self.assertEqual(2, ds.num_classes)
self.assertTrue((ds.header.img_w == 225).all())
self.assertTrue((ds.header.img_h == 225).all())
self.assertTrue((ds.header.img_c == 3).all())
self.logger.info("Testing loading grayscale dataset...")
ds_gray_path = fm.join(fm.abspath(__file__), "ds_gray")
ds = dl.load(ds_path=ds_gray_path, img_format='jpeg')
self.logger.info(
"Loaded {:} images of {:} features, {:} classes".format(
ds.num_samples, ds.num_features, ds.num_classes))
self.assertEqual((2, 50625), ds.X.shape)
self.assertEqual(2, ds.num_classes)
self.assertTrue((ds.header.img_w == 225).all())
self.assertTrue((ds.header.img_h == 225).all())
self.assertTrue((ds.header.img_c == 1).all())
def __init__(self):
# Extract the name of the data file from the url
self.data_file = self.data_url.split('/')[-1]
# Path to the downloaded dataset file
data_file_path = fm.join(CIFAR_PATH, self.data_file)
with CDataLoaderCIFAR.__lock:
# Download (if needed) data and extract it
if not fm.file_exist(data_file_path) or \
md5(data_file_path) != self.data_md5:
self._get_data(self.data_url, CIFAR_PATH)
elif not fm.folder_exist(self.data_path):
# Downloaded datafile seems valid, extract only
self._get_data(self.data_url, CIFAR_PATH, extract_only=True)
def _test_rule(self, rule, n_prototypes=20, random_state=None):
"""Generic test case for prototype selectors."""
self.logger.info("Testing: " + rule + " selector.")
ps = CPrototypesSelector.create(rule)
ps.verbose = 2
if random_state is None:
ds_reduced = ps.select(self.dataset, n_prototypes=n_prototypes)
else:
ds_reduced = ps.select(self.dataset,
n_prototypes=n_prototypes,
random_state=random_state)
idx_path = fm.join(fm.abspath(__file__), "idx_{:}.gz".format(rule))
self.assert_array_equal(ps.sel_idx,
CArray.load(idx_path, dtype=int).ravel())
if self.plots is True:
self.draw_selection(ds_reduced, rule)
def test_dl_file_md5(self):
# Fixed long string to write to the file
x = b'abcd' * 10000
# Expected digest of the file
md5_test = '3f0f597c3c69ce42e554fdad3adcbeea'
# Generate a temp file to test and write content
tempf = fm.join(self.tempdir, 'test_dl_file_md5')
with open(tempf, 'wb') as fp:
fp.write(x)
md5_digest = md5(fp.name)
self.logger.info("MD5: {:}".format(md5_digest))
self.assertEqual(md5_test, md5_digest)
def test_ps_kmedians(self):
rule = 'k-medians'
self.logger.info("Testing: " + rule + " selector.")
ps = CPrototypesSelector.create(rule)
ps.verbose = 2
ds_reduced = ps.select(self.dataset, n_prototypes=20, random_state=0)
# this test will fail with sklearn < 0.22, because of an issue in
# random_state setting inside the k-means algorithm
import sklearn
from pkg_resources import parse_version
if not parse_version(sklearn.__version__) < parse_version("0.22"):
idx_path = fm.join(fm.abspath(__file__), "idx_{:}.gz".format(rule))
self.assert_array_equal(ps.sel_idx,
CArray.load(idx_path, dtype=int).ravel())
if self.plots is True:
self.draw_selection(ds_reduced, rule)
def test_save_load(self):
"""Test save/load of sparse arrays"""
self.logger.info("UNITTEST - CSparse - save/load")
test_file = fm.join(fm.abspath(__file__), 'test.txt')
# Cleaning test file
try:
fm.remove_file(test_file)
except (OSError, IOError) as e:
if e.errno != 2:
raise e
self.logger.info(
"UNITTEST - CSparse - Testing save/load for sparse matrix")
self.sparse_matrix.save(test_file)
self.logger.info(
"Saving again with overwrite=False... IOError should be raised.")
with self.assertRaises(IOError) as e:
self.sparse_matrix.save(test_file)
self.logger.info(e.exception)
loaded_sparse_matrix = CSparse.load(test_file, dtype=int)
self.assertFalse((loaded_sparse_matrix != self.sparse_matrix).any(),
"Saved and loaded arrays (matrices) are not equal!")
self.logger.info(
"UNITTEST - CSparse - Testing save/load for sparse vector")
self.sparse_vector.save(test_file, overwrite=True)
loaded_sparse_vector = CSparse.load(test_file, dtype=int)
self.assertFalse((loaded_sparse_vector != self.sparse_vector).any(),
"Saved and loaded arrays (vectors) are not equal!")
# Cleaning test file
try:
fm.remove_file(test_file)
except (OSError, IOError) as e:
if e.errno != 2:
raise e
def test_set_get_state(self):
"""Test for set_state and get_state."""
pre = CPreProcess.create_chain(['pca', 'mean-std'], [{}, {}])
clf = CClassifierSkLearn(sklearn_model=SVC(kernel="rbf",
gamma=2,
C=1,
random_state=0),
preprocess=pre)
clf.fit(self.dataset)
pred_y = clf.predict(self.dataset.X)
self.logger.info(
"Predictions before restoring state:\n{:}".format(pred_y))
state = clf.get_state()
self.logger.info("State of multiclass:\n{:}".format(state))
# Generate a temp file to test
import tempfile
from secml.utils import fm
tempdir = tempfile.gettempdir()
tempfile = fm.join(tempdir, 'secml_testgetsetstate')
# Test save state to disk
tempfile = clf.save_state(tempfile)
# Create an entirely new clf
pre_post = CPreProcess.create_chain(['pca', 'mean-std'], [{}, {}])
clf_post = CClassifierSkLearn(sklearn_model=SVC(kernel="rbf",
gamma=2,
C=1,
random_state=0),
preprocess=pre_post)
# Restore state from disk
clf_post.load_state(tempfile)
pred_y_post = clf_post.predict(self.dataset.X)
self.logger.info(
"Predictions after restoring state:\n{:}".format(pred_y_post))
self.assert_array_equal(pred_y, pred_y_post)