171 lines
6.9 KiB
Python
171 lines
6.9 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2014 Red Hat, Inc.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from unittest import mock
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from oslo_i18n import fixture as oslo_i18n_fixture
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from oslotest import base as test_base
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from oslo_utils import encodeutils
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class EncodeUtilsTest(test_base.BaseTestCase):
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def test_safe_decode(self):
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safe_decode = encodeutils.safe_decode
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self.assertRaises(TypeError, safe_decode, True)
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self.assertEqual('ni\xf1o',
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safe_decode("ni\xc3\xb1o".encode("latin-1"),
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incoming="utf-8"))
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self.assertEqual("strange",
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safe_decode('\x80strange'.encode("latin-1"),
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errors='ignore'))
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self.assertEqual('\xc0', safe_decode('\xc0'.encode("latin-1"),
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incoming='iso-8859-1'))
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# Forcing incoming to ascii so it falls back to utf-8
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self.assertEqual('ni\xf1o',
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safe_decode('ni\xc3\xb1o'.encode("latin-1"),
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incoming='ascii'))
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self.assertEqual('foo', safe_decode(b'foo'))
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def test_safe_encode_none_instead_of_text(self):
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self.assertRaises(TypeError, encodeutils.safe_encode, None)
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def test_safe_encode_bool_instead_of_text(self):
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self.assertRaises(TypeError, encodeutils.safe_encode, True)
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def test_safe_encode_int_instead_of_text(self):
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self.assertRaises(TypeError, encodeutils.safe_encode, 1)
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def test_safe_encode_list_instead_of_text(self):
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self.assertRaises(TypeError, encodeutils.safe_encode, [])
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def test_safe_encode_dict_instead_of_text(self):
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self.assertRaises(TypeError, encodeutils.safe_encode, {})
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def test_safe_encode_tuple_instead_of_text(self):
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self.assertRaises(TypeError, encodeutils.safe_encode, ('foo', 'bar', ))
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def test_safe_encode_force_incoming_utf8_to_ascii(self):
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# Forcing incoming to ascii so it falls back to utf-8
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self.assertEqual(
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'ni\xc3\xb1o'.encode("latin-1"),
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encodeutils.safe_encode('ni\xc3\xb1o'.encode("latin-1"),
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incoming='ascii'),
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)
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def test_safe_encode_same_encoding_different_cases(self):
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with mock.patch.object(encodeutils, 'safe_decode', mock.Mock()):
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utf8 = encodeutils.safe_encode(
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'foo\xf1bar', encoding='utf-8')
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self.assertEqual(
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encodeutils.safe_encode(utf8, 'UTF-8', 'utf-8'),
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encodeutils.safe_encode(utf8, 'utf-8', 'UTF-8'),
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)
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self.assertEqual(
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encodeutils.safe_encode(utf8, 'UTF-8', 'utf-8'),
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encodeutils.safe_encode(utf8, 'utf-8', 'utf-8'),
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)
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encodeutils.safe_decode.assert_has_calls([])
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def test_safe_encode_different_encodings(self):
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text = 'foo\xc3\xb1bar'
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result = encodeutils.safe_encode(
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text=text, incoming='utf-8', encoding='iso-8859-1')
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self.assertNotEqual(text, result)
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self.assertNotEqual("foo\xf1bar".encode("latin-1"), result)
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def test_to_utf8(self):
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self.assertEqual(encodeutils.to_utf8(b'a\xe9\xff'), # bytes
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b'a\xe9\xff')
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self.assertEqual(encodeutils.to_utf8('a\xe9\xff\u20ac'), # Unicode
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b'a\xc3\xa9\xc3\xbf\xe2\x82\xac')
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self.assertRaises(TypeError, encodeutils.to_utf8, 123) # invalid
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# oslo.i18n Message objects should also be accepted for convenience.
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# It works because Message is a subclass of str. Use the
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# lazy translation to get a Message instance of oslo_i18n.
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msg = oslo_i18n_fixture.Translation().lazy("test")
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self.assertEqual(encodeutils.to_utf8(msg),
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b'test')
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class ExceptionToUnicodeTest(test_base.BaseTestCase):
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def test_str_exception(self):
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# The regular Exception class cannot be used directly:
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# Exception('\xe9').__str__() raises an UnicodeEncodeError
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# on Python 2
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class StrException(Exception):
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def __init__(self, value):
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Exception.__init__(self)
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self.value = value
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def __str__(self):
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return self.value
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# On Python 3, an exception which returns bytes with is __str__()
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# method (like StrException(bytes)) is probably a bug, but it was not
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# harder to support this silly case in exception_to_unicode().
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# Decode from ASCII
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exc = StrException(b'bytes ascii')
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self.assertEqual(encodeutils.exception_to_unicode(exc),
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'bytes ascii')
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# Decode from UTF-8
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exc = StrException(b'utf-8 \xc3\xa9\xe2\x82\xac')
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self.assertEqual(encodeutils.exception_to_unicode(exc),
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'utf-8 \xe9\u20ac')
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# Force the locale encoding to ASCII to test the fallback
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with mock.patch.object(encodeutils, '_getfilesystemencoding',
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return_value='ascii'):
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# Fallback: decode from ISO-8859-1
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exc = StrException(b'rawbytes \x80\xff')
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self.assertEqual(encodeutils.exception_to_unicode(exc),
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'rawbytes \x80\xff')
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# No conversion needed
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exc = StrException('unicode ascii')
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self.assertEqual(encodeutils.exception_to_unicode(exc),
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'unicode ascii')
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# No conversion needed
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exc = StrException('unicode \xe9\u20ac')
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self.assertEqual(encodeutils.exception_to_unicode(exc),
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'unicode \xe9\u20ac')
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# Test the locale encoding
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with mock.patch.object(encodeutils, '_getfilesystemencoding',
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return_value='koi8_r'):
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exc = StrException(b'\xf2\xd5\xd3\xd3\xcb\xc9\xca')
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# Decode from the locale encoding
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# (the message cannot be decoded from ASCII nor UTF-8)
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self.assertEqual(encodeutils.exception_to_unicode(exc),
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'\u0420\u0443\u0441\u0441\u043a\u0438\u0439')
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def test_oslo_i18n_message(self):
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# use the lazy translation to get a Message instance of oslo_i18n
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exc = oslo_i18n_fixture.Translation().lazy("test")
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self.assertEqual(encodeutils.exception_to_unicode(exc),
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"test")
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