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"""passlib.tests -- tests for passlib.pwd"""
#=============================================================================
# imports
#=============================================================================
# core
import itertools
import logging; log = logging.getLogger(__name__)
# site
# pkg
from passlib.tests.utils import TestCase
# local
__all__ = [
"UtilsTest",
"GenerateTest",
"StrengthTest",
]
#=============================================================================
#
#=============================================================================
class UtilsTest(TestCase):
"""test internal utilities"""
descriptionPrefix = "passlib.pwd"
def test_self_info_rate(self):
"""_self_info_rate()"""
from passlib.pwd import _self_info_rate
self.assertEqual(_self_info_rate(""), 0)
self.assertEqual(_self_info_rate("a" * 8), 0)
self.assertEqual(_self_info_rate("ab"), 1)
self.assertEqual(_self_info_rate("ab" * 8), 1)
self.assertEqual(_self_info_rate("abcd"), 2)
self.assertEqual(_self_info_rate("abcd" * 8), 2)
self.assertAlmostEqual(_self_info_rate("abcdaaaa"), 1.5488, places=4)
# def test_total_self_info(self):
# """_total_self_info()"""
# from passlib.pwd import _total_self_info
#
# self.assertEqual(_total_self_info(""), 0)
#
# self.assertEqual(_total_self_info("a" * 8), 0)
#
# self.assertEqual(_total_self_info("ab"), 2)
# self.assertEqual(_total_self_info("ab" * 8), 16)
#
# self.assertEqual(_total_self_info("abcd"), 8)
# self.assertEqual(_total_self_info("abcd" * 8), 64)
# self.assertAlmostEqual(_total_self_info("abcdaaaa"), 12.3904, places=4)
#=============================================================================
# word generation
#=============================================================================
# import subject
from passlib.pwd import genword, default_charsets
ascii_62 = default_charsets['ascii_62']
hex = default_charsets['hex']
class WordGeneratorTest(TestCase):
"""test generation routines"""
descriptionPrefix = "passlib.pwd.genword()"
def setUp(self):
super().setUp()
# patch some RNG references so they're reproducible.
from passlib.pwd import SequenceGenerator
self.patchAttr(SequenceGenerator, "rng",
self.getRandom("pwd generator"))
def assertResultContents(self, results, count, chars, unique=True):
"""check result list matches expected count & charset"""
self.assertEqual(len(results), count)
if unique:
if unique is True:
unique = count
self.assertEqual(len(set(results)), unique)
self.assertEqual(set("".join(results)), set(chars))
def test_general(self):
"""general behavior"""
# basic usage
result = genword()
self.assertEqual(len(result), 9)
# malformed keyword should have useful error.
self.assertRaisesRegex(TypeError, "(?i)unexpected keyword.*badkwd", genword, badkwd=True)
def test_returns(self):
"""'returns' keyword"""
# returns=int option
results = genword(returns=5000)
self.assertResultContents(results, 5000, ascii_62)
# returns=iter option
gen = genword(returns=iter)
results = [next(gen) for _ in range(5000)]
self.assertResultContents(results, 5000, ascii_62)
# invalid returns option
self.assertRaises(TypeError, genword, returns='invalid-type')
def test_charset(self):
"""'charset' & 'chars' options"""
# charset option
results = genword(charset="hex", returns=5000)
self.assertResultContents(results, 5000, hex)
# chars option
# there are 3**3=27 possible combinations
results = genword(length=3, chars="abc", returns=5000)
self.assertResultContents(results, 5000, "abc", unique=27)
# chars + charset
self.assertRaises(TypeError, genword, chars='abc', charset='hex')
# TODO: test rng option
#=============================================================================
# phrase generation
#=============================================================================
# import subject
from passlib.pwd import genphrase
simple_words = ["alpha", "beta", "gamma"]
class PhraseGeneratorTest(TestCase):
"""test generation routines"""
descriptionPrefix = "passlib.pwd.genphrase()"
def assertResultContents(self, results, count, words, unique=True, sep=" "):
"""check result list matches expected count & charset"""
self.assertEqual(len(results), count)
if unique:
if unique is True:
unique = count
self.assertEqual(len(set(results)), unique)
out = set(itertools.chain.from_iterable(elem.split(sep) for elem in results))
self.assertEqual(out, set(words))
def test_general(self):
"""general behavior"""
# basic usage
result = genphrase()
self.assertEqual(len(result.split(" ")), 4) # 48 / log(7776, 2) ~= 3.7 -> 4
# malformed keyword should have useful error.
self.assertRaisesRegex(TypeError, "(?i)unexpected keyword.*badkwd", genphrase, badkwd=True)
def test_entropy(self):
"""'length' & 'entropy' keywords"""
# custom entropy
result = genphrase(entropy=70)
self.assertEqual(len(result.split(" ")), 6) # 70 / log(7776, 2) ~= 5.4 -> 6
# custom length
result = genphrase(length=3)
self.assertEqual(len(result.split(" ")), 3)
# custom length < entropy
result = genphrase(length=3, entropy=48)
self.assertEqual(len(result.split(" ")), 4)
# custom length > entropy
result = genphrase(length=4, entropy=12)
self.assertEqual(len(result.split(" ")), 4)
def test_returns(self):
"""'returns' keyword"""
# returns=int option
results = genphrase(returns=1000, words=simple_words)
self.assertResultContents(results, 1000, simple_words)
# returns=iter option
gen = genphrase(returns=iter, words=simple_words)
results = [next(gen) for _ in range(1000)]
self.assertResultContents(results, 1000, simple_words)
# invalid returns option
self.assertRaises(TypeError, genphrase, returns='invalid-type')
def test_wordset(self):
"""'wordset' & 'words' options"""
# wordset option
results = genphrase(words=simple_words, returns=5000)
self.assertResultContents(results, 5000, simple_words)
# words option
results = genphrase(length=3, words=simple_words, returns=5000)
self.assertResultContents(results, 5000, simple_words, unique=3**3)
# words + wordset
self.assertRaises(TypeError, genphrase, words=simple_words, wordset='bip39')
#=============================================================================
# eof
#=============================================================================
|
