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import unittest
from precis_i18n import get_profile
from precis_i18n.profile import Username
from precis_i18n.unicode import UnicodeData
class IdempotentTestCase(unittest.TestCase):
def test_broken_profile(self):
"""Test that we can catch a profile that is not idempotent."""
class _BrokenProfile(Username):
def additional_mapping_rule(self, value):
return "%s+" % value
broken = _BrokenProfile(UnicodeData(), name="Broken")
with self.assertRaisesRegex(ValueError, "DISALLOWED/not_idempotent"):
broken.enforce("x")
def test_all_codepoints(self):
"""Verify all individual code points are idempotent."""
profiles = [
get_profile(profile)
for profile in ("UsernameCaseMapped", "NicknameCaseMapped")
]
for cp in range(0x0110000):
original = chr(cp)
for profile in profiles:
try:
profile.enforce(original)
except UnicodeEncodeError as ex:
if "not_idempotent" in str(ex):
raise
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