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#!/usr/bin/python3-dbg
# -*- coding: utf-8 -*-
# Tests validant le bon calcul d'empreintes.
from chrysacase import ChrysalideTestCase
from pychrysalide.analysis.contents import FileContent, RestrictedContent
from pychrysalide.arch import vmpa, mrange
import hashlib
import tempfile
class TestRestrictedContent(ChrysalideTestCase):
"""TestCase for analysis.contents.RestrictedContent."""
@classmethod
def setUpClass(cls):
super(TestRestrictedContent, cls).setUpClass()
cls._out = tempfile.NamedTemporaryFile()
cls._out.write(b'AAAABBBBCCCCDDDD')
cls._out.flush()
cls.log('Using temporary file "%s"' % cls._out.name)
@classmethod
def tearDownClass(cls):
super(TestRestrictedContent, cls).tearDownClass()
cls.log('Delete file "%s"' % cls._out.name)
cls._out.close()
def testFullChecksum(self):
"""Check checksum of full content."""
fcnt = FileContent(self._out.name)
self.assertIsNotNone(fcnt)
expected = hashlib.sha256(b'AAAABBBBCCCCDDDD').hexdigest()
self.assertEqual(fcnt.checksum, expected)
def testPartialChecksum(self):
"""Check checksum of restricted content."""
fcnt = FileContent(self._out.name)
self.assertIsNotNone(fcnt)
start = vmpa(4, vmpa.VMPA_NO_VIRTUAL)
covered = mrange(start, 4) # 'BBBB'
rcnt = RestrictedContent(fcnt, covered)
self.assertIsNotNone(rcnt)
expected = hashlib.sha256(b'BBBB').hexdigest()
self.assertEqual(rcnt.checksum, expected)
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