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import pytest
def _pairs(*args):
for a, b in args:
yield chr(a), bytearray(b)
def test_decode_bad_mutf8(decoder):
"""Ensure we do the right thing when we encounter invalid MUTF-8."""
# There should never be a null byte in a MUTF-8 string. It's the
# entire point of using MUTF-8.
with pytest.raises(UnicodeDecodeError) as excinfo:
decoder(b'\x00')
assert excinfo.value.encoding == 'mutf-8'
assert 'Embedded NULL' in excinfo.value.reason
# Start of a two-byte codepoint without the sibling.
with pytest.raises(UnicodeDecodeError) as excinfo:
decoder(b'\xC2')
assert excinfo.value.encoding == 'mutf-8'
assert '2-byte' in excinfo.value.reason
# Start of a six-byte codepoint without the sibling.
with pytest.raises(UnicodeDecodeError) as excinfo:
decoder(b'\xED')
assert excinfo.value.encoding == 'mutf-8'
assert '6-byte' in excinfo.value.reason
# Start of a three-byte codepoint without the sibling.
with pytest.raises(UnicodeDecodeError) as excinfo:
decoder(b'\xE2')
assert excinfo.value.encoding == 'mutf-8'
assert '3-byte' in excinfo.value.reason
def test_two_byte(module):
"""
Test two-byte encoding and decoding.
Test data taken from py2jdbc.
"""
pairs = _pairs(
(0x0080, (0xc2, 0x80)),
(0x0081, (0xc2, 0x81)),
(0x0082, (0xc2, 0x82)),
(0x0084, (0xc2, 0x84)),
(0x0088, (0xc2, 0x88)),
(0x0090, (0xc2, 0x90)),
(0x00a0, (0xc2, 0xa0)),
(0x00c0, (0xc3, 0x80)),
(0x0180, (0xc6, 0x80)),
(0x0280, (0xca, 0x80)),
(0x0480, (0xd2, 0x80)),
(0x0481, (0xd2, 0x81)),
(0x0483, (0xd2, 0x83)),
(0x0487, (0xd2, 0x87)),
(0x048f, (0xd2, 0x8f)),
(0x049f, (0xd2, 0x9f)),
(0x04af, (0xd2, 0xaf)),
(0x04bf, (0xd2, 0xbf)),
(0x04ff, (0xd3, 0xbf)),
(0x05ff, (0xd7, 0xbf)),
(0x05ff, (0xd7, 0xbf)),
(0x07ff, (0xdf, 0xbf))
)
for decoded, original in pairs:
assert module.decode_modified_utf8(original) == decoded
assert module.encode_modified_utf8(decoded) == original
def test_three_byte(module):
"""
Test three-byte encoding and decoding.
Test data taken from py2jdbc.
"""
pairs = _pairs(
(0x0800, (0xe0, 0xa0, 0x80)),
(0x0801, (0xe0, 0xa0, 0x81)),
(0x0802, (0xe0, 0xa0, 0x82)),
(0x0804, (0xe0, 0xa0, 0x84)),
(0x0808, (0xe0, 0xa0, 0x88)),
(0x0810, (0xe0, 0xa0, 0x90)),
(0x0820, (0xe0, 0xa0, 0xa0)),
(0x0840, (0xe0, 0xa1, 0x80)),
(0x0880, (0xe0, 0xa2, 0x80)),
(0x0900, (0xe0, 0xa4, 0x80)),
(0x0a00, (0xe0, 0xa8, 0x80)),
(0x0c00, (0xe0, 0xb0, 0x80)),
(0x1800, (0xe1, 0xa0, 0x80)),
(0x2800, (0xe2, 0xa0, 0x80)),
(0x4800, (0xe4, 0xa0, 0x80)),
(0x8800, (0xe8, 0xa0, 0x80)),
(0x8801, (0xe8, 0xa0, 0x81)),
(0x8803, (0xe8, 0xa0, 0x83)),
(0x8807, (0xe8, 0xa0, 0x87)),
(0x880f, (0xe8, 0xa0, 0x8f)),
(0x881f, (0xe8, 0xa0, 0x9f)),
(0x883f, (0xe8, 0xa0, 0xbf)),
(0x887f, (0xe8, 0xa1, 0xbf)),
(0x88ff, (0xe8, 0xa3, 0xbf)),
(0x89ff, (0xe8, 0xa7, 0xbf)),
(0x8bff, (0xe8, 0xaf, 0xbf)),
(0x8fff, (0xe8, 0xbf, 0xbf)),
(0x9fff, (0xe9, 0xbf, 0xbf)),
(0xbfff, (0xeb, 0xbf, 0xbf)),
(0xffff, (0xef, 0xbf, 0xbf))
)
for decoded, original in pairs:
assert module.decode_modified_utf8(original) == decoded
assert module.encode_modified_utf8(decoded) == original
def test_six_byte(module):
"""
Test six-byte encoding and decoding.
Test data taken from py2jdbc.
"""
pairs = _pairs(
(0x10000, (0xed, 0xa1, 0x80, 0xed, 0xb0, 0x80)),
(0x10001, (0xed, 0xa1, 0x80, 0xed, 0xb0, 0x81)),
(0x10002, (0xed, 0xa1, 0x80, 0xed, 0xb0, 0x82)),
(0x10004, (0xed, 0xa1, 0x80, 0xed, 0xb0, 0x84)),
(0x10008, (0xed, 0xa1, 0x80, 0xed, 0xb0, 0x88)),
(0x10010, (0xed, 0xa1, 0x80, 0xed, 0xb0, 0x90)),
(0x10020, (0xed, 0xa1, 0x80, 0xed, 0xb0, 0xa0)),
(0x10040, (0xed, 0xa1, 0x80, 0xed, 0xb1, 0x80)),
(0x10080, (0xed, 0xa1, 0x80, 0xed, 0xb2, 0x80)),
(0x10100, (0xed, 0xa1, 0x80, 0xed, 0xb4, 0x80)),
(0x10200, (0xed, 0xa1, 0x80, 0xed, 0xb8, 0x80)),
(0x10400, (0xed, 0xa1, 0x81, 0xed, 0xb0, 0x80)),
(0x10800, (0xed, 0xa1, 0x82, 0xed, 0xb0, 0x80)),
(0x11000, (0xed, 0xa1, 0x84, 0xed, 0xb0, 0x80)),
(0x12000, (0xed, 0xa1, 0x88, 0xed, 0xb0, 0x80)),
(0x14000, (0xed, 0xa1, 0x90, 0xed, 0xb0, 0x80)),
(0x18000, (0xed, 0xa1, 0xa0, 0xed, 0xb0, 0x80)),
(0x30000, (0xed, 0xa3, 0x80, 0xed, 0xb0, 0x80)),
(0x50000, (0xed, 0xa5, 0x80, 0xed, 0xb0, 0x80)),
(0x90000, (0xed, 0xa9, 0x80, 0xed, 0xb0, 0x80)),
(0x10003, (0xed, 0xa1, 0x80, 0xed, 0xb0, 0x83)),
(0x10007, (0xed, 0xa1, 0x80, 0xed, 0xb0, 0x87)),
(0x1000f, (0xed, 0xa1, 0x80, 0xed, 0xb0, 0x8f)),
(0x1001f, (0xed, 0xa1, 0x80, 0xed, 0xb0, 0x9f)),
(0x1003f, (0xed, 0xa1, 0x80, 0xed, 0xb0, 0xbf)),
(0x1007f, (0xed, 0xa1, 0x80, 0xed, 0xb1, 0xbf)),
(0x100ff, (0xed, 0xa1, 0x80, 0xed, 0xb3, 0xbf)),
(0x101ff, (0xed, 0xa1, 0x80, 0xed, 0xb7, 0xbf)),
(0x103ff, (0xed, 0xa1, 0x80, 0xed, 0xbf, 0xbf)),
(0x107ff, (0xed, 0xa1, 0x81, 0xed, 0xbf, 0xbf)),
(0x10fff, (0xed, 0xa1, 0x83, 0xed, 0xbf, 0xbf)),
(0x11fff, (0xed, 0xa1, 0x87, 0xed, 0xbf, 0xbf)),
(0x13fff, (0xed, 0xa1, 0x8f, 0xed, 0xbf, 0xbf)),
(0x17fff, (0xed, 0xa1, 0x9f, 0xed, 0xbf, 0xbf)),
(0x1ffff, (0xed, 0xa1, 0xbf, 0xed, 0xbf, 0xbf)),
(0x3ffff, (0xed, 0xa3, 0xbf, 0xed, 0xbf, 0xbf)),
(0x7ffff, (0xed, 0xa7, 0xbf, 0xed, 0xbf, 0xbf)),
(0xfffff, (0xed, 0xaf, 0xbf, 0xed, 0xbf, 0xbf))
)
for decoded, original in pairs:
assert module.decode_modified_utf8(original) == decoded
assert module.encode_modified_utf8(decoded) == original
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