1
我正在解决Python中的一些练习,并使用unittest来自动化我的一些代码验证。一个程序运行单个单元测试就可以了,并且通过。第二个提供了以下错误:从__main__失败的命令行调用unittests
$ python s1c6.py
E
======================================================================
ERROR: s1c6 (unittest.loader._FailedTest)
----------------------------------------------------------------------
AttributeError: module '__main__' has no attribute 's1c6'
----------------------------------------------------------------------
Ran 1 test in 0.001s
FAILED (errors=1)
下面是工作脚本代码:
# s1c5.py
import unittest
import cryptopals
class TestRepeatingKeyXor(unittest.TestCase):
def testCase(self):
key = b"ICE"
data = b"Burning 'em, if you ain't quick and nimble\nI go crazy when I hear a cymbal"
expected = bytes.fromhex(
"0b3637272a2b2e63622c2e69692a23693a2a3c6324202d623d63343c2a26226324272765272a282b2f20430a652e2c652a3124333a653e2b2027630c692b20283165286326302e27282f")
self.assertEqual(expected, cryptopals.xorcrypt(key, data))
if __name__ == "__main__":
unittest.main()
而对于失败的脚本代码:
# s1c6.py
import unittest
import bitstring
import cryptopals
class TestHammingDistance(unittest.TestCase):
def testCase(self):
str1 = b'this is a test'
str2 = b'wokka wokka!!!'
expected = 37
self.assertEqual(expected, hamming_distance(str1, str2))
def hamming_distance(str1, str2):
temp = cryptopals.xor(str1, str2)
return sum(bitstring.Bits(temp))
if __name__ == "__main__":
unittest.main()
我没有看到一个基本这两个程序之间的差异会导致一个错误而不是另一个错误。我错过了什么?
import itertools
import operator
def xor(a, b):
return bytes(map(operator.xor, a, b))
def xorcrypt(key, cipher):
return b''.join(xor(key, x) for x in grouper(cipher, len(key)))
def grouper(iterable, n):
it = iter(iterable)
group = tuple(itertools.islice(it, n))
while group:
yield group
group = tuple(itertools.islice(it, n))
“原始” 版没有脚本:
# s1c6_raw.py
import cryptopals
key = b"ICE"
data = b"Burning 'em, if you ain't quick and nimble\nI go crazy when I hear a cymbal"
expected = bytes.fromhex(
"0b3637272a2b2e63622c2e69692a23693a2a3c6324202d623d63343c2a26226324272765272a282b2f20430a652e2c652a3124333a653e2b2027630c692b20283165286326302e27282f")
print(cryptopals.xorcrypt(key, data))
以上运行正常并打印预期输出。
如果您将失败的测试用例中的代码放入文件(以及必要的导入)并运行它,会发生什么? – BrenBarn
你是如何安装隐形眼镜的?它不在PyPi上,是吗? – Eddie
@Eddie cryptopals是我自己的.py文件,与所示的两个文件位于相同的目录中。 –