Commit 4dd2c6f

author

Maxim Kochukov

committed

new: tests

1 parent 109de13 commit 4dd2c6fCopy full SHA for 4dd2c6f

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+74

-8

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Lines changed: 11 additions & 0 deletions

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`@@ -0,0 +1,11 @@`
	`1`	`+language: python`
	`2`	`+python:`
	`3`	`+ - "3.3"`
	`4`	`+ - "3.4"`
	`5`	`+ - "3.5"`
	`6`	`+ - "3.6"`
	`7`	`+ - "3.7"`
	`8`	`+install:`
	`9`	`+ - pip install -r requirements.txt`
	`10`	`+script:`
	`11`	`+ - pytest`

Lines changed: 3 additions & 1 deletion

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`@@ -6,7 +6,9 @@`
`6`	`6`	`![PyPI - Python Version](https://img.shields.io/pypi/pyversions/randcrack.svg)`
`7`	`7`	`![PyPI - Implementation](https://img.shields.io/pypi/implementation/randcrack.svg)`
`8`	`8`
`9`		-This script is able to predict python's `random` module random generated values. Script was tested against Python 3.5.2, 3.6.2. and 3.7.0. Should work against other versions of Python as well, since the generator is pretty much the same in 2.7.12. Enjoy!
	`9`	+This script is able to predict python's `random` module random generated values.
	`10`	`+`
	`11`	`+Script was tested against Python 3.5.2, 3.6.2. and 3.7.0. Should work against other versions of Python as well, since the generator is pretty much the same in 2.7.12. Enjoy!`
`10`	`12`
`11`	`13`	`## Installation`
`12`	`14`	`To install randcrack, simply:`

Lines changed: 8 additions & 7 deletions

Original file line number	Diff line number	Diff line change
`@@ -7,8 +7,8 @@ def __init__(self):`
`7`	`7`
`8`	`8`	`def submit(self, num):`
`9`	`9`	`if self.state:`
`10`		`- print("Already got enough bits")`
`11`		`-return`
	`10`	`+ raiseValueError("Already got enough bits")`
	`11`	`+`
`12`	`12`	`bits = self._to_bitarray(num)`
`13`	`13`
`14`	`14`	`assert (all([x == 0 or x == 1 for x in bits]))`
`@@ -20,8 +20,8 @@ def submit(self, num):`
`20`	`20`
`21`	`21`	`def _predict_32(self):`
`22`	`22`	`if not self.state:`
`23`		`- print("Didn't recieve enough bits to predict")`
`24`		`-return0`
	`23`	`+ raiseValueError("Didn't recieve enough bits to predict")`
	`24`	`+`
`25`	`25`	`if self.counter >= 624:`
`26`	`26`	`self._regen()`
`27`	`27`	`self.counter += 1`
`@@ -30,8 +30,8 @@ def _predict_32(self):`
`30`	`30`
`31`	`31`	`def predict_getrandbits(self, k):`
`32`	`32`	`if not self.state:`
`33`		`- print("Didn't recieve enough bits to predict")`
`34`		`-return0`
	`33`	`+ raiseValueError("Didn't recieve enough bits to predict")`
	`34`	`+`
`35`	`35`	`if k == 0:`
`36`	`36`	`return 0`
`37`	`37`	`words = (k - 1) // 32 + 1`
`@@ -208,7 +208,8 @@ def _regen(self):`
`208`	`208`
`209`	`209`
`210`	`210`	`if __name__ == "__main__":`
`211`		`- import random, time`
	`211`	`+ import random`
	`212`	`+ import time`
`212`	`213`
`213`	`214`	`print("Testing random module cracker...")`
`214`	`215`

Lines changed: 52 additions & 0 deletions

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`@@ -0,0 +1,52 @@`
	`1`	`+import random`
	`2`	`+import time`
	`3`	`+`
	`4`	`+import pytest`
	`5`	`+`
	`6`	`+from randcrack import RandCrack`
	`7`	`+`
	`8`	`+`
	`9`	`+def test_submit_not_enough():`
	`10`	`+ random.seed(time.time())`
	`11`	`+`
	`12`	`+ cracker = RandCrack()`
	`13`	`+`
	`14`	`+ for i in range(623):`
	`15`	`+ cracker.submit(random.randint(0, 4294967294))`
	`16`	`+`
	`17`	`+ with pytest.raises(ValueError):`
	`18`	`+ cracker.predict_randint(0, 1)`
	`19`	`+`
	`20`	`+`
	`21`	`+def test_submit_too_much():`
	`22`	`+ random.seed(time.time())`
	`23`	`+`
	`24`	`+ cracker = RandCrack()`
	`25`	`+`
	`26`	`+ for i in range(624):`
	`27`	`+ cracker.submit(random.randint(0, 4294967294))`
	`28`	`+`
	`29`	`+ with pytest.raises(ValueError):`
	`30`	`+ cracker.submit(random.randint(0, 4294967294))`
	`31`	`+`
	`32`	`+`
	`33`	`+def test_predict_first_624():`
	`34`	`+ random.seed(time.time())`
	`35`	`+`
	`36`	`+ cracker = RandCrack()`
	`37`	`+`
	`38`	`+ for i in range(624):`
	`39`	`+ cracker.submit(random.randint(0, 4294967294))`
	`40`	`+`
	`41`	`+ assert sum([random.getrandbits(32) == cracker.predict_getrandbits(32) for _ in range(1000)]) >= 620`
	`42`	`+`
	`43`	`+`
	`44`	`+def test_predict_first_1000_close():`
	`45`	`+ random.seed(time.time())`
	`46`	`+`
	`47`	`+ cracker = RandCrack()`
	`48`	`+`
	`49`	`+ for i in range(624):`
	`50`	`+ cracker.submit(random.randint(0, 4294967294))`
	`51`	`+`
	`52`	`+ assert sum([random.getrandbits(32) == cracker.predict_getrandbits(32) for _ in range(1000)]) >= 980`

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