def _testFlipBytes(self, bytes_to_flip, value_len):
value = b'\x00' * value_len
nf_count = value_len - bytes_to_flip
expected_mutations = map(lambda i: b'\x00' * (nf_count - i) + b'\xff' * bytes_to_flip + b'\x00' * (i), range(nf_count + 1))
uut = ByteFlip(value=value, num_bytes=bytes_to_flip)
self.assertEqual(uut.num_mutations(), value_len - bytes_to_flip + 1)
mutations = map(lambda x: x.tobytes(), self.get_all_mutations(uut))
self.assertEqual(set(mutations), set(expected_mutations))
def _testFlipBytes(self, bytes_to_flip, value_len):
value = '\x00' * value_len
nf_count = value_len - bytes_to_flip
expected_mutations = map(lambda i: '\x00' * (nf_count - i) + '\xff' * bytes_to_flip + '\x00' * (i), range(nf_count + 1))
uut = ByteFlip(value=value, num_bytes=bytes_to_flip)
self.assertEqual(uut.num_mutations(), value_len - bytes_to_flip + 1)
mutations = map(lambda x: x.tobytes(), self.get_all_mutations(uut))
self.assertEqual(set(mutations), set(expected_mutations))
def testFuzzableIsFalse(self):
uut = ByteFlip(b'\x00\x00\x00\x00', num_bytes=2, fuzzable=False)
self.assertEqual(uut.num_mutations(), 0)
self.assertEqual(self.get_all_mutations(uut), [])
def get_field(self, value=b'\x00\x00\x00\x00'):
return ByteFlip(value=value, num_bytes=1)
def testFuzzableIsFalse(self):
uut = ByteFlip(b'\x00\x00\x00\x00', num_bytes=2, fuzzable=False)
self.assertEqual(uut.num_mutations(), 0)
self.assertEqual(self.get_all_mutations(uut), [])
def testExceptionIfNumOfBitsIsNegative(self):
with self.assertRaises(KittyException):
value = b'\x00'
ByteFlip(value=value, num_bytes=-1)
def testExceptionIfNumOfBytesIsBiggerThanValue(self):
with self.assertRaises(KittyException):
value = b'\x00'
max_len = len(value)
ByteFlip(value=value, num_bytes=max_len + 1)
