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Added steganalysis.statistics unit test

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AdrienCos 2019-06-06 22:36:06 -04:00
parent b054fc7a0c
commit a060757f76
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2 changed files with 12 additions and 1 deletions
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1
tests/expected-results/statistics Normal file
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@ -0,0 +1 @@
([58, 56, 54, 57, 60, 59, 62, 61, 63, 65, 64, 66, 67, 254, 68, 69, 255, 70, 253, 71, 72, 74, 252, 73, 251, 250, 75, 249, 76, 77], [(224, 4327), (221, 4138), (223, 4057), (222, 3987), (225, 3713), (220, 3554), (209, 3516), (207, 3476), (208, 3424), (219, 3360)])

12
tests/test_steganalysis.py
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@ -32,7 +32,7 @@ import unittest
from unittest.mock import patch from unittest.mock import patch
from stegano import lsb from stegano import lsb
from stegano.steganalysis import parity from stegano.steganalysis import parity, statistics
from PIL import Image, ImageChops from PIL import Image, ImageChops
@ -59,6 +59,16 @@ class TestSteganalysis(unittest.TestCase):
diff = ImageChops.difference(target, analysis).getbbox() diff = ImageChops.difference(target, analysis).getbbox()
self.assertTrue(diff is None) self.assertTrue(diff is None)
def test_statistics(self):
""" Test stegano.steganalysis.statistics
"""
image = Image.open("./tests/sample-files/Lenna.png")
stats = str(statistics.steganalyse(image)) + '\n'
file = open("./tests/expected-results/statistics")
target = file.read()
file.close()
self.assertEqual(stats, target)
if __name__ == '__main__': if __name__ == '__main__':
unittest.main() unittest.main()