def testInvalidMagic(self):
"""Asserts that an exception is raised when the magic is invalid.
"""
stream = io.BytesIO(struct.pack('L', 0xC0BFFFFFFFFFFF10))
p = sancov_parser.SancovParser(stream)
with self.assertRaises(parser.FileFormatError) as context:
p.Parse()
self.assertTrue('Invalid magic' in str(context.exception))
def testMagic64(self):
"""Asserts that values are correctly read in 64-bit sancov files.
"""
stream = io.BytesIO(struct.pack('L', sancov_parser.MAGIC64))
stream.seek(8)
values = (4, 5, 6)
stream.write(struct.pack('LLL', *values))
stream.seek(0)
p = sancov_parser.SancovParser(stream)
s = p.Parse()
self.assertEqual(64, p._bitness)
self.assertEqual(values, s)
def testMagic32(self):
"""Asserts that values are correctly read in 32-bit sancov files.
"""
stream = io.BytesIO(struct.pack('L', sancov_parser.MAGIC32))
stream.seek(8)
values = (1, 2, 3)
stream.write(struct.pack('III', *values))
stream.seek(0)
p = sancov_parser.SancovParser(stream)
s = p.Parse()
self.assertEqual(32, p._bitness)
self.assertEqual(values, s)
def testGetBitness64(self):
"""Asserts that bitness is correctly determined from a 64-bit sancov file.
"""
stream = io.BytesIO(struct.pack('L', sancov_parser.MAGIC64))
p = sancov_parser.SancovParser(stream)
self.assertEqual(64, p.GetBitness())