mirror of
https://github.com/cedricbonhomme/Stegano.git
synced 2025-05-12 17:18:30 +02:00
Merge lsb and lsbset tests
This commit is contained in:
Flavien
parent
3103a3ae9b
commit
eed1f08526
2 changed files with 117 additions and 287 deletions
|
|
@ -2,7 +2,7 @@
|
|||
# -*- coding: utf-8 -*-
|
||||
|
||||
# Stegano - Stegano is a pure Python steganography module.
|
||||
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
|
||||
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
|
||||
#
|
||||
# For more information : https://git.sr.ht/~cedric/stegano
|
||||
#
|
||||
|
|
@ -20,18 +20,18 @@
|
|||
# along with this program. If not, see <http://www.gnu.org/licenses/>
|
||||
|
||||
__author__ = "Cedric Bonhomme"
|
||||
__version__ = "$Revision: 0.3 $"
|
||||
__date__ = "$Date: 2016/04/12 $"
|
||||
__revision__ = "$Date: 2017/05/04 $"
|
||||
__version__ = "$Revision: 0.6 $"
|
||||
__date__ = "$Date: 2016/04/13 $"
|
||||
__revision__ = "$Date: 2022/01/04 $"
|
||||
__license__ = "GPLv3"
|
||||
|
||||
import io
|
||||
import os
|
||||
import base64
|
||||
import unittest
|
||||
from unittest.mock import patch
|
||||
|
||||
from stegano import lsb
|
||||
from stegano.lsb import generators
|
||||
|
||||
|
||||
class TestLSB(unittest.TestCase):
|
||||
|
|
@ -40,133 +40,170 @@ class TestLSB(unittest.TestCase):
|
|||
Test hiding the empty string.
|
||||
"""
|
||||
with self.assertRaises(AssertionError):
|
||||
lsb.hide("./tests/sample-files/Lenna.png", "")
|
||||
lsb.hide("./tests/sample-files/Lenna.png", "", generators.eratosthenes())
|
||||
|
||||
def test_hide_and_reveal(self):
|
||||
def test_hide_and_reveal_without_generator(self):
|
||||
messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
|
||||
for message in messages_to_hide:
|
||||
secret = lsb.hide("./tests/sample-files/Lenna.png", message)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsb.reveal("./image.png")
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
def test_hide_and_reveal_with_eratosthenes(self):
|
||||
messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
|
||||
for message in messages_to_hide:
|
||||
secret = lsb.hide(
|
||||
"./tests/sample-files/Lenna.png", message, generators.eratosthenes()
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsb.reveal("./image.png", generators.eratosthenes())
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
def test_hide_and_reveal_with_ackermann(self):
|
||||
messages_to_hide = ["foo"]
|
||||
for message in messages_to_hide:
|
||||
secret = lsb.hide(
|
||||
"./tests/sample-files/Lenna.png", message, generators.ackermann(m=3)
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsb.reveal("./image.png", generators.ackermann(m=3))
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
def test_hide_and_reveal_with_shi_tomashi(self):
|
||||
messages_to_hide = ["foo bar"]
|
||||
for message in messages_to_hide:
|
||||
secret = lsb.hide(
|
||||
"./tests/sample-files/Lenna.png",
|
||||
message,
|
||||
generators.shi_tomashi("./tests/sample-files/Lenna.png"),
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsb.reveal(
|
||||
"./image.png", generators.shi_tomashi("./tests/sample-files/Lenna.png")
|
||||
)
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
def test_hide_and_reveal_with_shift(self):
|
||||
messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
|
||||
for message in messages_to_hide:
|
||||
secret = lsb.hide(
|
||||
"./tests/sample-files/Lenna.png", message, generators.eratosthenes(), 4
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsb.reveal("./image.png", generators.eratosthenes(), 4)
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
def test_hide_and_reveal_UTF32LE(self):
|
||||
messages_to_hide = "I love 🍕 and 🍫!"
|
||||
secret = lsb.hide(
|
||||
"./tests/sample-files/Lenna.png", messages_to_hide, encoding="UTF-32LE"
|
||||
"./tests/sample-files/Lenna.png",
|
||||
messages_to_hide,
|
||||
generators.eratosthenes(),
|
||||
encoding="UTF-32LE",
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsb.reveal("./image.png", encoding="UTF-32LE")
|
||||
clear_message = lsb.reveal(
|
||||
"./image.png", generators.eratosthenes(), encoding="UTF-32LE"
|
||||
)
|
||||
self.assertEqual(messages_to_hide, clear_message)
|
||||
|
||||
def test_with_transparent_png(self):
|
||||
messages_to_hide = ["🍕", "a", "foo", "Hello World!", ":Python:"]
|
||||
messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
|
||||
for message in messages_to_hide:
|
||||
secret = lsb.hide(
|
||||
"./tests/sample-files/transparent.png", message, encoding="UTF-32LE"
|
||||
"./tests/sample-files/transparent.png",
|
||||
message,
|
||||
generators.eratosthenes(),
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsb.reveal("./image.png", encoding="UTF-32LE")
|
||||
clear_message = lsb.reveal("./image.png", generators.eratosthenes())
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
@patch("builtins.input", return_value="y")
|
||||
def test_manual_convert_rgb(self, input):
|
||||
message_to_hide = "I love 🍕 and 🍫!"
|
||||
message_to_hide = "Hello World!"
|
||||
lsb.hide(
|
||||
"./tests/sample-files/Lenna-grayscale.png",
|
||||
message_to_hide,
|
||||
encoding="UTF-32LE",
|
||||
generators.eratosthenes(),
|
||||
)
|
||||
|
||||
@patch("builtins.input", return_value="n")
|
||||
def test_refuse_convert_rgb(self, input):
|
||||
message_to_hide = "I love 🍕 and 🍫!"
|
||||
message_to_hide = "Hello World!"
|
||||
with self.assertRaises(Exception):
|
||||
lsb.hide(
|
||||
"./tests/sample-files/Lenna-grayscale.png",
|
||||
message_to_hide,
|
||||
encoding="UTF-32LE",
|
||||
generators.eratosthenes(),
|
||||
)
|
||||
|
||||
def test_auto_convert_rgb(self):
|
||||
message_to_hide = "I love 🍕 and 🍫!"
|
||||
lsb.hide(
|
||||
"./tests/sample-files/Lenna-grayscale.png",
|
||||
message_to_hide,
|
||||
encoding="UTF-32LE",
|
||||
auto_convert_rgb=True,
|
||||
)
|
||||
|
||||
def test_with_text_file(self):
|
||||
text_file_to_hide = "./tests/sample-files/lorem_ipsum.txt"
|
||||
with open(text_file_to_hide) as f:
|
||||
message = f.read()
|
||||
secret = lsb.hide("./tests/sample-files/Lenna.png", message)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsb.reveal("./image.png")
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
def test_with_binary_file(self):
|
||||
binary_file_to_hide = "./tests/sample-files/free-software-song.ogg"
|
||||
with open(binary_file_to_hide, "rb") as bin_file:
|
||||
encoded_string = base64.b64encode(bin_file.read())
|
||||
message = encoded_string.decode()
|
||||
secret = lsb.hide("./tests/sample-files/Montenach.png", message)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsb.reveal("./image.png")
|
||||
clear_message += "==="
|
||||
clear_message = base64.b64decode(clear_message)
|
||||
with open("file1", "wb") as f:
|
||||
f.write(clear_message)
|
||||
with open("file1", "rb") as bin_file:
|
||||
encoded_string = base64.b64encode(bin_file.read())
|
||||
message1 = encoded_string.decode()
|
||||
self.assertEqual(message, message1)
|
||||
try:
|
||||
os.unlink("./file1")
|
||||
except Exception:
|
||||
pass
|
||||
|
||||
def test_with_too_long_message(self):
|
||||
with open("./tests/sample-files/lorem_ipsum.txt") as f:
|
||||
message = f.read()
|
||||
message += message * 2
|
||||
with self.assertRaises(Exception):
|
||||
lsb.hide("./tests/sample-files/Lenna.png", message)
|
||||
|
||||
def test_with_bytes(self):
|
||||
messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
|
||||
|
||||
for message in messages_to_hide:
|
||||
outputBytes = io.BytesIO()
|
||||
with open("./tests/sample-files/20160505T130442.jpg", "rb") as f:
|
||||
bytes_image = lsb.hide(f, message)
|
||||
bytes_image.save(outputBytes, "PNG")
|
||||
outputBytes.seek(0)
|
||||
|
||||
clear_message = lsb.reveal(outputBytes)
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
def test_with_location_of_image_as_argument(self):
|
||||
messages_to_hide = ["Hello World!"]
|
||||
|
||||
for message in messages_to_hide:
|
||||
outputBytes = io.BytesIO()
|
||||
bytes_image = lsb.hide("./tests/sample-files/20160505T130442.jpg", message)
|
||||
bytes_image = lsb.hide(
|
||||
"./tests/sample-files/20160505T130442.jpg",
|
||||
message,
|
||||
generators.identity(),
|
||||
)
|
||||
bytes_image.save(outputBytes, "PNG")
|
||||
outputBytes.seek(0)
|
||||
|
||||
clear_message = lsb.reveal(outputBytes)
|
||||
clear_message = lsb.reveal(outputBytes, generators.identity())
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
def test_auto_convert_rgb(self):
|
||||
message_to_hide = "Hello World!"
|
||||
lsb.hide(
|
||||
"./tests/sample-files/Lenna-grayscale.png",
|
||||
message_to_hide,
|
||||
generators.eratosthenes(),
|
||||
auto_convert_rgb=True,
|
||||
)
|
||||
|
||||
def test_with_too_long_message(self):
|
||||
with open("./tests/sample-files/lorem_ipsum.txt") as f:
|
||||
message = f.read()
|
||||
message += message * 2
|
||||
with self.assertRaises(Exception):
|
||||
lsb.hide("./tests/sample-files/Lenna.png", message, generators.identity())
|
||||
|
||||
def test_hide_and_reveal_with_bad_generator(self):
|
||||
message_to_hide = "Hello World!"
|
||||
secret = lsb.hide(
|
||||
"./tests/sample-files/Lenna.png", message_to_hide, generators.eratosthenes()
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
with self.assertRaises(IndexError):
|
||||
lsb.reveal("./image.png", generators.identity())
|
||||
|
||||
def test_with_unknown_generator(self):
|
||||
message_to_hide = "Hello World!"
|
||||
with self.assertRaises(AttributeError):
|
||||
lsb.hide(
|
||||
"./tests/sample-files/Lenna.png",
|
||||
message_to_hide,
|
||||
generators.unknown_generator(),
|
||||
)
|
||||
|
||||
def tearDown(self):
|
||||
try:
|
||||
os.unlink("./image.png")
|
||||
|
|
|
|||
|
|
@ -1,207 +0,0 @@
|
|||
#!/usr/bin/env python
|
||||
# -*- coding: utf-8 -*-
|
||||
|
||||
# Stegano - Stegano is a pure Python steganography module.
|
||||
# Copyright (C) 2010-2022 Cédric Bonhomme - https://www.cedricbonhomme.org
|
||||
#
|
||||
# For more information : https://git.sr.ht/~cedric/stegano
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see <http://www.gnu.org/licenses/>
|
||||
|
||||
__author__ = "Cedric Bonhomme"
|
||||
__version__ = "$Revision: 0.6 $"
|
||||
__date__ = "$Date: 2016/04/13 $"
|
||||
__revision__ = "$Date: 2022/01/04 $"
|
||||
__license__ = "GPLv3"
|
||||
|
||||
import io
|
||||
import os
|
||||
import unittest
|
||||
from unittest.mock import patch
|
||||
|
||||
from stegano import lsbset
|
||||
from stegano.lsbset import generators
|
||||
|
||||
|
||||
class TestLSBSet(unittest.TestCase):
|
||||
def test_hide_empty_message(self):
|
||||
"""
|
||||
Test hiding the empty string.
|
||||
"""
|
||||
with self.assertRaises(AssertionError):
|
||||
lsbset.hide("./tests/sample-files/Lenna.png", "", generators.eratosthenes())
|
||||
|
||||
def test_hide_and_reveal(self):
|
||||
messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
|
||||
for message in messages_to_hide:
|
||||
secret = lsbset.hide(
|
||||
"./tests/sample-files/Lenna.png", message, generators.eratosthenes()
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsbset.reveal("./image.png", generators.eratosthenes())
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
def test_hide_and_reveal_with_ackermann(self):
|
||||
messages_to_hide = ["foo"]
|
||||
for message in messages_to_hide:
|
||||
secret = lsbset.hide(
|
||||
"./tests/sample-files/Lenna.png", message, generators.ackermann(m=3)
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsbset.reveal("./image.png", generators.ackermann(m=3))
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
def test_hide_and_reveal_with_shi_tomashi(self):
|
||||
messages_to_hide = ["foo bar"]
|
||||
for message in messages_to_hide:
|
||||
secret = lsbset.hide(
|
||||
"./tests/sample-files/Lenna.png",
|
||||
message,
|
||||
generators.shi_tomashi("./tests/sample-files/Lenna.png"),
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsbset.reveal(
|
||||
"./image.png", generators.shi_tomashi("./tests/sample-files/Lenna.png")
|
||||
)
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
def test_hide_and_reveal_with_shift(self):
|
||||
messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
|
||||
for message in messages_to_hide:
|
||||
secret = lsbset.hide(
|
||||
"./tests/sample-files/Lenna.png", message, generators.eratosthenes(), 4
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsbset.reveal("./image.png", generators.eratosthenes(), 4)
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
def test_hide_and_reveal_UTF32LE(self):
|
||||
messages_to_hide = "I love 🍕 and 🍫!"
|
||||
secret = lsbset.hide(
|
||||
"./tests/sample-files/Lenna.png",
|
||||
messages_to_hide,
|
||||
generators.eratosthenes(),
|
||||
encoding="UTF-32LE",
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsbset.reveal(
|
||||
"./image.png", generators.eratosthenes(), encoding="UTF-32LE"
|
||||
)
|
||||
self.assertEqual(messages_to_hide, clear_message)
|
||||
|
||||
def test_with_transparent_png(self):
|
||||
messages_to_hide = ["a", "foo", "Hello World!", ":Python:"]
|
||||
for message in messages_to_hide:
|
||||
secret = lsbset.hide(
|
||||
"./tests/sample-files/transparent.png",
|
||||
message,
|
||||
generators.eratosthenes(),
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
clear_message = lsbset.reveal("./image.png", generators.eratosthenes())
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
@patch("builtins.input", return_value="y")
|
||||
def test_manual_convert_rgb(self, input):
|
||||
message_to_hide = "Hello World!"
|
||||
lsbset.hide(
|
||||
"./tests/sample-files/Lenna-grayscale.png",
|
||||
message_to_hide,
|
||||
generators.eratosthenes(),
|
||||
)
|
||||
|
||||
@patch("builtins.input", return_value="n")
|
||||
def test_refuse_convert_rgb(self, input):
|
||||
message_to_hide = "Hello World!"
|
||||
with self.assertRaises(Exception):
|
||||
lsbset.hide(
|
||||
"./tests/sample-files/Lenna-grayscale.png",
|
||||
message_to_hide,
|
||||
generators.eratosthenes(),
|
||||
)
|
||||
|
||||
def test_with_location_of_image_as_argument(self):
|
||||
messages_to_hide = ["Hello World!"]
|
||||
|
||||
for message in messages_to_hide:
|
||||
outputBytes = io.BytesIO()
|
||||
bytes_image = lsbset.hide(
|
||||
"./tests/sample-files/20160505T130442.jpg",
|
||||
message,
|
||||
generators.identity(),
|
||||
)
|
||||
bytes_image.save(outputBytes, "PNG")
|
||||
outputBytes.seek(0)
|
||||
|
||||
clear_message = lsbset.reveal(outputBytes, generators.identity())
|
||||
|
||||
self.assertEqual(message, clear_message)
|
||||
|
||||
def test_auto_convert_rgb(self):
|
||||
message_to_hide = "Hello World!"
|
||||
lsbset.hide(
|
||||
"./tests/sample-files/Lenna-grayscale.png",
|
||||
message_to_hide,
|
||||
generators.eratosthenes(),
|
||||
auto_convert_rgb=True,
|
||||
)
|
||||
|
||||
def test_with_too_long_message(self):
|
||||
with open("./tests/sample-files/lorem_ipsum.txt") as f:
|
||||
message = f.read()
|
||||
message += message * 2
|
||||
with self.assertRaises(Exception):
|
||||
lsbset.hide(
|
||||
"./tests/sample-files/Lenna.png", message, generators.identity()
|
||||
)
|
||||
|
||||
def test_hide_and_reveal_with_bad_generator(self):
|
||||
message_to_hide = "Hello World!"
|
||||
secret = lsbset.hide(
|
||||
"./tests/sample-files/Lenna.png", message_to_hide, generators.eratosthenes()
|
||||
)
|
||||
secret.save("./image.png")
|
||||
|
||||
with self.assertRaises(IndexError):
|
||||
lsbset.reveal("./image.png", generators.identity())
|
||||
|
||||
def test_with_unknown_generator(self):
|
||||
message_to_hide = "Hello World!"
|
||||
with self.assertRaises(AttributeError):
|
||||
lsbset.hide(
|
||||
"./tests/sample-files/Lenna.png",
|
||||
message_to_hide,
|
||||
generators.eratosthene(), # type: ignore
|
||||
)
|
||||
|
||||
def tearDown(self):
|
||||
try:
|
||||
os.unlink("./image.png")
|
||||
except Exception:
|
||||
pass
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
unittest.main()
|
||||
Loading…
Add table
Reference in a new issue