def generate(amt: int) -> None :
rs = Rstr(SystemRandom())
codes = dict()
if os.path.exists(codes_path) :
with open(codes_path, 'r') as fp :
codes = json.load(fp)['codes']
count = 0
new_codes = []
while count < amt :
cd = rs.xeger(pattern)
if cd not in codes :
new_codes.append(cd)
codes[cd] = True
count += 1
# separate JSON of most recently generated codes
with open(os.path.join(path, 'obj/new-codes.json'), 'w') as fp :
json.dump({'codes' : {cd : True for cd in new_codes}}, fp, indent=INDENT)
else :
codes = {rs.xeger(pattern) : True for _ in range(amt)}
with open(codes_path, 'w') as fp :
json.dump({'codes' : codes}, fp, indent=INDENT)
class TestNondigits(unittest.TestCase):
def setUp(self) -> None:
self.rs = Rstr()
def test_nondigits(self) -> None:
assert_matches(r'^\D{1,10}$', self.rs.nondigits())
def test_nondigits_include(self) -> None:
assert_matches(r'^\D*@\D*$', self.rs.nondigits(include='@'))
def test_nondigits_exclude(self) -> None:
for _ in range(0, 100):
assert 'A' not in self.rs.nondigits(exclude='A')
class TestLetters(unittest.TestCase):
def setUp(self) -> None:
self.rs = Rstr()
def test_letters(self) -> None:
assert_matches(r'^[a-zA-Z]{1,10}$', self.rs.letters())
def test_letters_include(self) -> None:
assert_matches(r'^[a-zA-Z]*@[a-zA-Z]*$', self.rs.letters(include='@'))
def test_letters_exclude(self) -> None:
for _ in range(0, 100):
assert 'A' not in self.rs.letters(exclude='A')
class TestDigits(unittest.TestCase):
def setUp(self) -> None:
self.rs = Rstr()
def test_all_digits(self) -> None:
assert_matches(r'^\d{1,10}$', self.rs.digits())
def test_digits_include(self) -> None:
assert_matches(r'^\d*@\d*$', self.rs.digits(include='@'))
def test_digits_exclude(self) -> None:
for _ in range(0, 100):
assert '5' not in self.rs.digits(exclude='5')
class TestUnambiguous(unittest.TestCase):
def setUp(self) -> None:
self.rs = Rstr()
def test_unambiguous(self) -> None:
assert_matches('^[a-km-zA-HJ-NP-Z2-9]{1,10}$', self.rs.unambiguous())
def test_unambiguous_include(self) -> None:
assert_matches('^[a-km-zA-HJ-NP-Z2-9@]{1,10}$',
self.rs.unambiguous(include='@'))
def test_unambiguous_exclude(self) -> None:
for _ in range(0, 100):
assert 'A' not in self.rs.unambiguous(exclude='A')
class Regex(Generator):
def __init__(self, regex, seed=None):
self.gen = Rstr(Random(seed))
self.regex = regex
def get_single(self):
return self.gen.xeger(self.regex)
from contextlib import contextmanager
import errno
import os
import re
from random import SystemRandom
import tempfile
from rstr import Rstr
from ._compat import which
rstr = Rstr(SystemRandom())
import_module = __import__
def genpass(pattern=r'[\w]{32}'):
"""generates a password with random chararcters
"""
try:
return rstr.xeger(pattern)
except re.error as e:
raise ValueError(str(e))
@contextmanager
def mkdir_open(path, mode="r"):
try:
dir_path = os.path.dirname(path)
os.makedirs(dir_path)
def __init__(self, regex, seed=None):
self.gen = Rstr(Random(seed))
self.regex = regex
def text_from_regex(draw, regexp):
random = draw(st.randoms())
return Rstr(random).xeger(regexp)
def setUp(self) -> None:
self.rs = Rstr()
class TestXeger(unittest.TestCase):
def setUp(self) -> None:
self.rs = Rstr()
def test_literals(self) -> None:
pattern = r'foo'
assert re.match(pattern, self.rs.xeger(pattern))
def test_dot(self) -> None:
'''
Verify that the dot character doesn't produce newlines.
See: https://bitbucket.org/leapfrogdevelopment/rstr/issue/1/
'''
pattern = r'.+'
for i in range(100):
assert re.match(pattern, self.rs.xeger(pattern))
def test_digit(self) -> None:
pattern = r'\d'
assert re.match(pattern, self.rs.xeger(pattern))
def test_nondigits(self) -> None:
pattern = r'\D'
assert re.match(pattern, self.rs.xeger(pattern))
def test_literal_with_repeat(self) -> None:
pattern = r'A{3}'
assert re.match(pattern, self.rs.xeger(pattern))
def test_literal_with_range_repeat(self) -> None:
pattern = r'A{2, 5}'
assert re.match(pattern, self.rs.xeger(pattern))
def test_word(self) -> None:
pattern = r'\w'
assert re.match(pattern, self.rs.xeger(pattern))
def test_nonword(self) -> None:
pattern = r'\W'
assert re.match(pattern, self.rs.xeger(pattern))
def test_or(self) -> None:
pattern = r'foo|bar'
assert re.match(pattern, self.rs.xeger(pattern))
def test_or_with_subpattern(self) -> None:
pattern = r'(foo|bar)'
assert re.match(pattern, self.rs.xeger(pattern))
def test_range(self) -> None:
pattern = r'[A-F]'
assert re.match(pattern, self.rs.xeger(pattern))
def test_character_group(self) -> None:
pattern = r'[ABC]'
assert re.match(pattern, self.rs.xeger(pattern))
def test_carot(self) -> None:
pattern = r'^foo'
assert re.match(pattern, self.rs.xeger(pattern))
def test_dollarsign(self) -> None:
pattern = r'foo$'
assert re.match(pattern, self.rs.xeger(pattern))
def test_not_literal(self) -> None:
pattern = r'[^a]'
assert re.match(pattern, self.rs.xeger(pattern))
def test_negation_group(self) -> None:
pattern = r'[^AEIOU]'
assert re.match(pattern, self.rs.xeger(pattern))
def test_lookahead(self) -> None:
pattern = r'foo(?=bar)'
assert re.match(pattern, self.rs.xeger(pattern))
def test_lookbehind(self) -> None:
pattern = r'(?<=foo)bar'
assert re.search(pattern, self.rs.xeger(pattern))
def test_backreference(self) -> None:
pattern = r'(foo|bar)baz\1'
assert re.match(pattern, self.rs.xeger(pattern))
def test_zero_or_more_greedy(self) -> None:
pattern = r'a*'
assert re.match(pattern, self.rs.xeger(pattern))
def test_zero_or_more_non_greedy(self) -> None:
pattern = r'a*?'
assert re.match(pattern, self.rs.xeger(pattern))
def gen_access_key(self):
rs = Rstr(SystemRandom())
self.access_key = rs.xeger(r'[A-Z]\d[A-Z]-\d[A-Z]\d')
return self.access_key
def setUp(self) -> None:
self.rs = Rstr(random.SystemRandom())
def test_add_alphabet(self) -> None:
rs = Rstr()
rs.add_alphabet('evens', '02468')
assert_matches('^[02468]{1,10}$', rs.evens())
def test_alphabet_at_instantiation(self) -> None:
rs = Rstr(vowels='AEIOU')
assert_matches('^[AEIOU]{1,10}$', rs.vowels())
class TestRstr(unittest.TestCase):
def setUp(self) -> None:
self.rs = Rstr()
def test_specific_length(self) -> None:
assert_matches('^A{5}$', self.rs.rstr('A', 5))
def test_length_range(self) -> None:
assert_matches('^A{11,20}$', self.rs.rstr('A', 11, 20))
def test_end_range_no_start_range(self) -> None:
assert_matches('^A{1,20}$', self.rs.rstr('A', end_range=20))
def test_custom_alphabet(self) -> None:
assert_matches('^A{1,10}$', self.rs.rstr('AA'))
def test_alphabet_as_list(self) -> None:
assert_matches('^A{1,10}$', self.rs.rstr(['A', 'A']))
def test_include(self) -> None:
assert_matches('^[ABC]*@[ABC]*$', self.rs.rstr('ABC', include='@'))
def test_include_specific_length(self) -> None:
'''
Verify including characters doesn't make the string longer than intended.
'''
assert_matches('^[ABC@]{5}$', self.rs.rstr('ABC', 5, include='@'))
def test_exclude(self) -> None:
for _ in range(0, 100):
assert 'C' not in self.rs.rstr('ABC', exclude='C')
def test_include_as_list(self) -> None:
assert_matches('^[ABC]*@[ABC]*$', self.rs.rstr('ABC', include=['@']))
def test_exclude_as_list(self) -> None:
for _ in range(0, 100):
assert 'C' not in self.rs.rstr('ABC', exclude=['C'])
def test_raise_exception_if_include_and_exclude_parameters_contain_same_character(
self) -> None:
with self.assertRaisesRegex(
SameCharacterError,
r"include and exclude parameters contain same character \(B\)"
):
self.rs.rstr('A', include='B', exclude='B')
self.rs.rstr('A', include=['B'], exclude=['B'])
with self.assertRaisesRegex(
SameCharacterError,
r"include and exclude parameters contain same characters \(., .\)"
):
self.rs.rstr('A', include='BC', exclude='BC')