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#
# This file is part of pyasn1 software.
#
# Copyright (c) 2005-2020, Ilya Etingof <etingof@gmail.com>
# License: http://snmplabs.com/pyasn1/license.html
#
import pickle
import sys
import unittest
from tests.base import BaseTestCase
from pyasn1.type import char
from pyasn1.type import univ
from pyasn1.type import constraint
from pyasn1.compat.octets import ints2octs
from pyasn1.error import PyAsn1Error
class AbstractStringTestCase(object):
initializer = ()
encoding = 'us-ascii'
asn1Type = None
def setUp(self):
BaseTestCase.setUp(self)
self.asn1String = self.asn1Type(ints2octs(self.initializer), encoding=self.encoding)
self.pythonString = ints2octs(self.initializer).decode(self.encoding)
def testUnicode(self):
assert self.asn1String == self.pythonString, 'unicode init fails'
def testLength(self):
assert len(self.asn1String) == len(self.pythonString), 'unicode len() fails'
def testSizeConstraint(self):
asn1Spec = self.asn1Type(subtypeSpec=constraint.ValueSizeConstraint(1, 1))
try:
asn1Spec.clone(self.pythonString)
except PyAsn1Error:
pass
else:
assert False, 'Size constraint tolerated'
try:
asn1Spec.clone(self.pythonString[0])
except PyAsn1Error:
assert False, 'Size constraint failed'
def testSerialised(self):
if sys.version_info[0] < 3:
assert str(self.asn1String) == self.pythonString.encode(self.encoding), '__str__() fails'
else:
assert bytes(self.asn1String) == self.pythonString.encode(self.encoding), '__str__() fails'
def testPrintable(self):
if sys.version_info[0] < 3:
assert unicode(self.asn1String) == self.pythonString, '__str__() fails'
else:
assert str(self.asn1String) == self.pythonString, '__str__() fails'
def testInit(self):
assert self.asn1Type(self.pythonString) == self.pythonString
assert self.asn1Type(self.pythonString.encode(self.encoding)) == self.pythonString
assert self.asn1Type(univ.OctetString(self.pythonString.encode(self.encoding))) == self.pythonString
assert self.asn1Type(self.asn1Type(self.pythonString)) == self.pythonString
assert self.asn1Type(self.initializer, encoding=self.encoding) == self.pythonString
def testInitFromAsn1(self):
assert self.asn1Type(self.asn1Type(self.pythonString)) == self.pythonString
assert self.asn1Type(univ.OctetString(self.pythonString.encode(self.encoding), encoding=self.encoding)) == self.pythonString
def testAsOctets(self):
assert self.asn1String.asOctets() == self.pythonString.encode(self.encoding), 'testAsOctets() fails'
def testAsNumbers(self):
assert self.asn1String.asNumbers() == self.initializer, 'testAsNumbers() fails'
def testSeq(self):
assert self.asn1String[0] == self.pythonString[0], '__getitem__() fails'
def testEmpty(self):
try:
str(self.asn1Type())
except PyAsn1Error:
pass
else:
assert 0, 'Value operation on ASN1 type tolerated'
def testAdd(self):
assert self.asn1String + self.pythonString.encode(self.encoding) == self.pythonString + self.pythonString, '__add__() fails'
def testRadd(self):
assert self.pythonString.encode(self.encoding) + self.asn1String == self.pythonString + self.pythonString, '__radd__() fails'
def testMul(self):
assert self.asn1String * 2 == self.pythonString * 2, '__mul__() fails'
def testRmul(self):
assert 2 * self.asn1String == 2 * self.pythonString, '__rmul__() fails'
def testContains(self):
assert self.pythonString in self.asn1String
assert self.pythonString + self.pythonString not in self.asn1String
def testReverse(self):
assert list(reversed(self.asn1String)) == list(reversed(self.pythonString))
def testSchemaPickling(self):
old_asn1 = self.asn1Type()
serialised = pickle.dumps(old_asn1)
assert serialised
new_asn1 = pickle.loads(serialised)
assert type(new_asn1) == self.asn1Type
assert old_asn1.isSameTypeWith(new_asn1)
def testValuePickling(self):
old_asn1 = self.asn1String
serialised = pickle.dumps(old_asn1)
assert serialised
new_asn1 = pickle.loads(serialised)
assert new_asn1 == self.asn1String
class VisibleStringTestCase(AbstractStringTestCase, BaseTestCase):
initializer = (97, 102)
encoding = 'us-ascii'
asn1Type = char.VisibleString
class GeneralStringTestCase(AbstractStringTestCase, BaseTestCase):
initializer = (169, 174)
encoding = 'iso-8859-1'
asn1Type = char.GeneralString
class UTF8StringTestCase(AbstractStringTestCase, BaseTestCase):
initializer = (209, 132, 208, 176)
encoding = 'utf-8'
asn1Type = char.UTF8String
class BMPStringTestCase(AbstractStringTestCase, BaseTestCase):
initializer = (4, 48, 4, 68)
encoding = 'utf-16-be'
asn1Type = char.BMPString
if sys.version_info[0] > 2:
# Somehow comparison of UTF-32 encoded strings does not work in Py2
class UniversalStringTestCase(AbstractStringTestCase, BaseTestCase):
initializer = (0, 0, 4, 48, 0, 0, 4, 68)
encoding = 'utf-32-be'
asn1Type = char.UniversalString
suite = unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
if __name__ == '__main__':
unittest.TextTestRunner(verbosity=2).run(suite)
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