mirror of
https://github.com/python/cpython.git
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516 lines
20 KiB
Python
516 lines
20 KiB
Python
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import unittest
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import sys
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from test import support
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from test.support import import_helper
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try:
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import _testcapi
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except ImportError:
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_testcapi = None
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class CAPITest(unittest.TestCase):
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# Test PyUnicode_FromFormat()
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def test_from_format(self):
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import_helper.import_module('ctypes')
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from ctypes import (
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c_char_p,
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pythonapi, py_object, sizeof,
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c_int, c_long, c_longlong, c_ssize_t,
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c_uint, c_ulong, c_ulonglong, c_size_t, c_void_p)
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name = "PyUnicode_FromFormat"
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_PyUnicode_FromFormat = getattr(pythonapi, name)
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_PyUnicode_FromFormat.argtypes = (c_char_p,)
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_PyUnicode_FromFormat.restype = py_object
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def PyUnicode_FromFormat(format, *args):
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cargs = tuple(
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py_object(arg) if isinstance(arg, str) else arg
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for arg in args)
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return _PyUnicode_FromFormat(format, *cargs)
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def check_format(expected, format, *args):
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text = PyUnicode_FromFormat(format, *args)
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self.assertEqual(expected, text)
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# ascii format, non-ascii argument
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check_format('ascii\x7f=unicode\xe9',
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b'ascii\x7f=%U', 'unicode\xe9')
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# non-ascii format, ascii argument: ensure that PyUnicode_FromFormatV()
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# raises an error
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self.assertRaisesRegex(ValueError,
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r'^PyUnicode_FromFormatV\(\) expects an ASCII-encoded format '
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'string, got a non-ASCII byte: 0xe9$',
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PyUnicode_FromFormat, b'unicode\xe9=%s', 'ascii')
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# test "%c"
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check_format('\uabcd',
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b'%c', c_int(0xabcd))
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check_format('\U0010ffff',
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b'%c', c_int(0x10ffff))
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with self.assertRaises(OverflowError):
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PyUnicode_FromFormat(b'%c', c_int(0x110000))
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# Issue #18183
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check_format('\U00010000\U00100000',
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b'%c%c', c_int(0x10000), c_int(0x100000))
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# test "%"
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check_format('%',
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b'%%')
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check_format('%s',
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b'%%s')
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check_format('[%]',
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b'[%%]')
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check_format('%abc',
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b'%%%s', b'abc')
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# truncated string
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check_format('abc',
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b'%.3s', b'abcdef')
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check_format('abc[\ufffd',
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b'%.5s', 'abc[\u20ac]'.encode('utf8'))
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check_format("'\\u20acABC'",
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b'%A', '\u20acABC')
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check_format("'\\u20",
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b'%.5A', '\u20acABCDEF')
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check_format("'\u20acABC'",
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b'%R', '\u20acABC')
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check_format("'\u20acA",
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b'%.3R', '\u20acABCDEF')
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check_format('\u20acAB',
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b'%.3S', '\u20acABCDEF')
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check_format('\u20acAB',
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b'%.3U', '\u20acABCDEF')
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check_format('\u20acAB',
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b'%.3V', '\u20acABCDEF', None)
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check_format('abc[\ufffd',
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b'%.5V', None, 'abc[\u20ac]'.encode('utf8'))
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# following tests comes from #7330
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# test width modifier and precision modifier with %S
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check_format("repr= abc",
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b'repr=%5S', 'abc')
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check_format("repr=ab",
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b'repr=%.2S', 'abc')
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check_format("repr= ab",
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b'repr=%5.2S', 'abc')
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# test width modifier and precision modifier with %R
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check_format("repr= 'abc'",
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b'repr=%8R', 'abc')
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check_format("repr='ab",
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b'repr=%.3R', 'abc')
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check_format("repr= 'ab",
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b'repr=%5.3R', 'abc')
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# test width modifier and precision modifier with %A
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check_format("repr= 'abc'",
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b'repr=%8A', 'abc')
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check_format("repr='ab",
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b'repr=%.3A', 'abc')
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check_format("repr= 'ab",
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b'repr=%5.3A', 'abc')
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# test width modifier and precision modifier with %s
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check_format("repr= abc",
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b'repr=%5s', b'abc')
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check_format("repr=ab",
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b'repr=%.2s', b'abc')
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check_format("repr= ab",
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b'repr=%5.2s', b'abc')
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# test width modifier and precision modifier with %U
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check_format("repr= abc",
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b'repr=%5U', 'abc')
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check_format("repr=ab",
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b'repr=%.2U', 'abc')
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check_format("repr= ab",
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b'repr=%5.2U', 'abc')
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# test width modifier and precision modifier with %V
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check_format("repr= abc",
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b'repr=%5V', 'abc', b'123')
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check_format("repr=ab",
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b'repr=%.2V', 'abc', b'123')
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check_format("repr= ab",
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b'repr=%5.2V', 'abc', b'123')
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check_format("repr= 123",
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b'repr=%5V', None, b'123')
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check_format("repr=12",
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b'repr=%.2V', None, b'123')
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check_format("repr= 12",
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b'repr=%5.2V', None, b'123')
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# test integer formats (%i, %d, %u)
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check_format('010',
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b'%03i', c_int(10))
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check_format('0010',
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b'%0.4i', c_int(10))
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check_format('-123',
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b'%i', c_int(-123))
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check_format('-123',
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b'%li', c_long(-123))
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check_format('-123',
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b'%lli', c_longlong(-123))
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check_format('-123',
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b'%zi', c_ssize_t(-123))
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check_format('-123',
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b'%d', c_int(-123))
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check_format('-123',
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b'%ld', c_long(-123))
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check_format('-123',
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b'%lld', c_longlong(-123))
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check_format('-123',
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b'%zd', c_ssize_t(-123))
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check_format('123',
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b'%u', c_uint(123))
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check_format('123',
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b'%lu', c_ulong(123))
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check_format('123',
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b'%llu', c_ulonglong(123))
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check_format('123',
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b'%zu', c_size_t(123))
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# test long output
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min_longlong = -(2 ** (8 * sizeof(c_longlong) - 1))
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max_longlong = -min_longlong - 1
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check_format(str(min_longlong),
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b'%lld', c_longlong(min_longlong))
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check_format(str(max_longlong),
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b'%lld', c_longlong(max_longlong))
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max_ulonglong = 2 ** (8 * sizeof(c_ulonglong)) - 1
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check_format(str(max_ulonglong),
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b'%llu', c_ulonglong(max_ulonglong))
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PyUnicode_FromFormat(b'%p', c_void_p(-1))
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# test padding (width and/or precision)
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check_format('123'.rjust(10, '0'),
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b'%010i', c_int(123))
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check_format('123'.rjust(100),
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b'%100i', c_int(123))
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check_format('123'.rjust(100, '0'),
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b'%.100i', c_int(123))
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check_format('123'.rjust(80, '0').rjust(100),
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b'%100.80i', c_int(123))
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check_format('123'.rjust(10, '0'),
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b'%010u', c_uint(123))
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check_format('123'.rjust(100),
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b'%100u', c_uint(123))
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check_format('123'.rjust(100, '0'),
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b'%.100u', c_uint(123))
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check_format('123'.rjust(80, '0').rjust(100),
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b'%100.80u', c_uint(123))
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check_format('123'.rjust(10, '0'),
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b'%010x', c_int(0x123))
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check_format('123'.rjust(100),
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b'%100x', c_int(0x123))
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check_format('123'.rjust(100, '0'),
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b'%.100x', c_int(0x123))
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check_format('123'.rjust(80, '0').rjust(100),
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b'%100.80x', c_int(0x123))
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# test %A
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check_format(r"%A:'abc\xe9\uabcd\U0010ffff'",
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b'%%A:%A', 'abc\xe9\uabcd\U0010ffff')
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# test %V
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check_format('repr=abc',
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b'repr=%V', 'abc', b'xyz')
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# test %p
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# We cannot test the exact result,
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# because it returns a hex representation of a C pointer,
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# which is going to be different each time. But, we can test the format.
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p_format_regex = r'^0x[a-zA-Z0-9]{3,}$'
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p_format1 = PyUnicode_FromFormat(b'%p', 'abc')
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self.assertIsInstance(p_format1, str)
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self.assertRegex(p_format1, p_format_regex)
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p_format2 = PyUnicode_FromFormat(b'%p %p', '123456', b'xyz')
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self.assertIsInstance(p_format2, str)
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self.assertRegex(p_format2,
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r'0x[a-zA-Z0-9]{3,} 0x[a-zA-Z0-9]{3,}')
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# Extra args are ignored:
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p_format3 = PyUnicode_FromFormat(b'%p', '123456', None, b'xyz')
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self.assertIsInstance(p_format3, str)
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self.assertRegex(p_format3, p_format_regex)
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# Test string decode from parameter of %s using utf-8.
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# b'\xe4\xba\xba\xe6\xb0\x91' is utf-8 encoded byte sequence of
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# '\u4eba\u6c11'
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check_format('repr=\u4eba\u6c11',
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b'repr=%V', None, b'\xe4\xba\xba\xe6\xb0\x91')
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#Test replace error handler.
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check_format('repr=abc\ufffd',
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b'repr=%V', None, b'abc\xff')
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# Issue #33817: empty strings
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check_format('',
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b'')
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check_format('',
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b'%s', b'')
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# check for crashes
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for fmt in (b'%', b'%0', b'%01', b'%.', b'%.1',
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b'%0%s', b'%1%s', b'%.%s', b'%.1%s', b'%1abc',
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b'%l', b'%ll', b'%z', b'%ls', b'%lls', b'%zs'):
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with self.subTest(fmt=fmt):
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self.assertRaisesRegex(SystemError, 'invalid format string',
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PyUnicode_FromFormat, fmt, b'abc')
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self.assertRaisesRegex(SystemError, 'invalid format string',
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PyUnicode_FromFormat, b'%+i', c_int(10))
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# Test PyUnicode_AsWideChar()
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@support.cpython_only
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@unittest.skipIf(_testcapi is None, 'need _testcapi module')
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def test_aswidechar(self):
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from _testcapi import unicode_aswidechar
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import_helper.import_module('ctypes')
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from ctypes import c_wchar, sizeof
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wchar, size = unicode_aswidechar('abcdef', 2)
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self.assertEqual(size, 2)
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self.assertEqual(wchar, 'ab')
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wchar, size = unicode_aswidechar('abc', 3)
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self.assertEqual(size, 3)
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self.assertEqual(wchar, 'abc')
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wchar, size = unicode_aswidechar('abc', 4)
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self.assertEqual(size, 3)
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self.assertEqual(wchar, 'abc\0')
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wchar, size = unicode_aswidechar('abc', 10)
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self.assertEqual(size, 3)
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self.assertEqual(wchar, 'abc\0')
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wchar, size = unicode_aswidechar('abc\0def', 20)
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self.assertEqual(size, 7)
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self.assertEqual(wchar, 'abc\0def\0')
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nonbmp = chr(0x10ffff)
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if sizeof(c_wchar) == 2:
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buflen = 3
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nchar = 2
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else: # sizeof(c_wchar) == 4
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buflen = 2
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nchar = 1
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wchar, size = unicode_aswidechar(nonbmp, buflen)
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self.assertEqual(size, nchar)
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self.assertEqual(wchar, nonbmp + '\0')
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# Test PyUnicode_AsWideCharString()
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@support.cpython_only
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@unittest.skipIf(_testcapi is None, 'need _testcapi module')
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def test_aswidecharstring(self):
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from _testcapi import unicode_aswidecharstring
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import_helper.import_module('ctypes')
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from ctypes import c_wchar, sizeof
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wchar, size = unicode_aswidecharstring('abc')
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self.assertEqual(size, 3)
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self.assertEqual(wchar, 'abc\0')
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wchar, size = unicode_aswidecharstring('abc\0def')
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self.assertEqual(size, 7)
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self.assertEqual(wchar, 'abc\0def\0')
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nonbmp = chr(0x10ffff)
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|
|
if sizeof(c_wchar) == 2:
|
|||
|
|
nchar = 2
|
|||
|
|
else: # sizeof(c_wchar) == 4
|
|||
|
|
nchar = 1
|
|||
|
|
wchar, size = unicode_aswidecharstring(nonbmp)
|
|||
|
|
self.assertEqual(size, nchar)
|
|||
|
|
self.assertEqual(wchar, nonbmp + '\0')
|
|||
|
|
|
|||
|
|
# Test PyUnicode_AsUCS4()
|
|||
|
|
@support.cpython_only
|
|||
|
|
@unittest.skipIf(_testcapi is None, 'need _testcapi module')
|
|||
|
|
def test_asucs4(self):
|
|||
|
|
from _testcapi import unicode_asucs4
|
|||
|
|
for s in ['abc', '\xa1\xa2', '\u4f60\u597d', 'a\U0001f600',
|
|||
|
|
'a\ud800b\udfffc', '\ud834\udd1e']:
|
|||
|
|
l = len(s)
|
|||
|
|
self.assertEqual(unicode_asucs4(s, l, True), s+'\0')
|
|||
|
|
self.assertEqual(unicode_asucs4(s, l, False), s+'\uffff')
|
|||
|
|
self.assertEqual(unicode_asucs4(s, l+1, True), s+'\0\uffff')
|
|||
|
|
self.assertEqual(unicode_asucs4(s, l+1, False), s+'\0\uffff')
|
|||
|
|
self.assertRaises(SystemError, unicode_asucs4, s, l-1, True)
|
|||
|
|
self.assertRaises(SystemError, unicode_asucs4, s, l-2, False)
|
|||
|
|
s = '\0'.join([s, s])
|
|||
|
|
self.assertEqual(unicode_asucs4(s, len(s), True), s+'\0')
|
|||
|
|
self.assertEqual(unicode_asucs4(s, len(s), False), s+'\uffff')
|
|||
|
|
|
|||
|
|
# Test PyUnicode_AsUTF8()
|
|||
|
|
@support.cpython_only
|
|||
|
|
@unittest.skipIf(_testcapi is None, 'need _testcapi module')
|
|||
|
|
def test_asutf8(self):
|
|||
|
|
from _testcapi import unicode_asutf8
|
|||
|
|
|
|||
|
|
bmp = '\u0100'
|
|||
|
|
bmp2 = '\uffff'
|
|||
|
|
nonbmp = chr(0x10ffff)
|
|||
|
|
|
|||
|
|
self.assertEqual(unicode_asutf8(bmp), b'\xc4\x80')
|
|||
|
|
self.assertEqual(unicode_asutf8(bmp2), b'\xef\xbf\xbf')
|
|||
|
|
self.assertEqual(unicode_asutf8(nonbmp), b'\xf4\x8f\xbf\xbf')
|
|||
|
|
self.assertRaises(UnicodeEncodeError, unicode_asutf8, 'a\ud800b\udfffc')
|
|||
|
|
|
|||
|
|
# Test PyUnicode_AsUTF8AndSize()
|
|||
|
|
@support.cpython_only
|
|||
|
|
@unittest.skipIf(_testcapi is None, 'need _testcapi module')
|
|||
|
|
def test_asutf8andsize(self):
|
|||
|
|
from _testcapi import unicode_asutf8andsize
|
|||
|
|
|
|||
|
|
bmp = '\u0100'
|
|||
|
|
bmp2 = '\uffff'
|
|||
|
|
nonbmp = chr(0x10ffff)
|
|||
|
|
|
|||
|
|
self.assertEqual(unicode_asutf8andsize(bmp), (b'\xc4\x80', 2))
|
|||
|
|
self.assertEqual(unicode_asutf8andsize(bmp2), (b'\xef\xbf\xbf', 3))
|
|||
|
|
self.assertEqual(unicode_asutf8andsize(nonbmp), (b'\xf4\x8f\xbf\xbf', 4))
|
|||
|
|
self.assertRaises(UnicodeEncodeError, unicode_asutf8andsize, 'a\ud800b\udfffc')
|
|||
|
|
|
|||
|
|
# Test PyUnicode_Count()
|
|||
|
|
@support.cpython_only
|
|||
|
|
@unittest.skipIf(_testcapi is None, 'need _testcapi module')
|
|||
|
|
def test_count(self):
|
|||
|
|
from _testcapi import unicode_count
|
|||
|
|
|
|||
|
|
st = 'abcabd'
|
|||
|
|
self.assertEqual(unicode_count(st, 'a', 0, len(st)), 2)
|
|||
|
|
self.assertEqual(unicode_count(st, 'ab', 0, len(st)), 2)
|
|||
|
|
self.assertEqual(unicode_count(st, 'abc', 0, len(st)), 1)
|
|||
|
|
self.assertEqual(unicode_count(st, 'а', 0, len(st)), 0) # cyrillic "a"
|
|||
|
|
# start < end
|
|||
|
|
self.assertEqual(unicode_count(st, 'a', 3, len(st)), 1)
|
|||
|
|
self.assertEqual(unicode_count(st, 'a', 4, len(st)), 0)
|
|||
|
|
self.assertEqual(unicode_count(st, 'a', 0, sys.maxsize), 2)
|
|||
|
|
# start >= end
|
|||
|
|
self.assertEqual(unicode_count(st, 'abc', 0, 0), 0)
|
|||
|
|
self.assertEqual(unicode_count(st, 'a', 3, 2), 0)
|
|||
|
|
self.assertEqual(unicode_count(st, 'a', sys.maxsize, 5), 0)
|
|||
|
|
# negative
|
|||
|
|
self.assertEqual(unicode_count(st, 'ab', -len(st), -1), 2)
|
|||
|
|
self.assertEqual(unicode_count(st, 'a', -len(st), -3), 1)
|
|||
|
|
# wrong args
|
|||
|
|
self.assertRaises(TypeError, unicode_count, 'a', 'a')
|
|||
|
|
self.assertRaises(TypeError, unicode_count, 'a', 'a', 1)
|
|||
|
|
self.assertRaises(TypeError, unicode_count, 1, 'a', 0, 1)
|
|||
|
|
self.assertRaises(TypeError, unicode_count, 'a', 1, 0, 1)
|
|||
|
|
# empty string
|
|||
|
|
self.assertEqual(unicode_count('abc', '', 0, 3), 4)
|
|||
|
|
self.assertEqual(unicode_count('abc', '', 1, 3), 3)
|
|||
|
|
self.assertEqual(unicode_count('', '', 0, 1), 1)
|
|||
|
|
self.assertEqual(unicode_count('', 'a', 0, 1), 0)
|
|||
|
|
# different unicode kinds
|
|||
|
|
for uni in "\xa1", "\u8000\u8080", "\ud800\udc02", "\U0001f100\U0001f1f1":
|
|||
|
|
for ch in uni:
|
|||
|
|
self.assertEqual(unicode_count(uni, ch, 0, len(uni)), 1)
|
|||
|
|
self.assertEqual(unicode_count(st, ch, 0, len(st)), 0)
|
|||
|
|
|
|||
|
|
# subclasses should still work
|
|||
|
|
class MyStr(str):
|
|||
|
|
pass
|
|||
|
|
|
|||
|
|
self.assertEqual(unicode_count(MyStr('aab'), 'a', 0, 3), 2)
|
|||
|
|
|
|||
|
|
# Test PyUnicode_FindChar()
|
|||
|
|
@support.cpython_only
|
|||
|
|
@unittest.skipIf(_testcapi is None, 'need _testcapi module')
|
|||
|
|
def test_findchar(self):
|
|||
|
|
from _testcapi import unicode_findchar
|
|||
|
|
|
|||
|
|
for str in "\xa1", "\u8000\u8080", "\ud800\udc02", "\U0001f100\U0001f1f1":
|
|||
|
|
for i, ch in enumerate(str):
|
|||
|
|
self.assertEqual(unicode_findchar(str, ord(ch), 0, len(str), 1), i)
|
|||
|
|
self.assertEqual(unicode_findchar(str, ord(ch), 0, len(str), -1), i)
|
|||
|
|
|
|||
|
|
str = "!>_<!"
|
|||
|
|
self.assertEqual(unicode_findchar(str, 0x110000, 0, len(str), 1), -1)
|
|||
|
|
self.assertEqual(unicode_findchar(str, 0x110000, 0, len(str), -1), -1)
|
|||
|
|
# start < end
|
|||
|
|
self.assertEqual(unicode_findchar(str, ord('!'), 1, len(str)+1, 1), 4)
|
|||
|
|
self.assertEqual(unicode_findchar(str, ord('!'), 1, len(str)+1, -1), 4)
|
|||
|
|
# start >= end
|
|||
|
|
self.assertEqual(unicode_findchar(str, ord('!'), 0, 0, 1), -1)
|
|||
|
|
self.assertEqual(unicode_findchar(str, ord('!'), len(str), 0, 1), -1)
|
|||
|
|
# negative
|
|||
|
|
self.assertEqual(unicode_findchar(str, ord('!'), -len(str), -1, 1), 0)
|
|||
|
|
self.assertEqual(unicode_findchar(str, ord('!'), -len(str), -1, -1), 0)
|
|||
|
|
|
|||
|
|
# Test PyUnicode_CopyCharacters()
|
|||
|
|
@support.cpython_only
|
|||
|
|
@unittest.skipIf(_testcapi is None, 'need _testcapi module')
|
|||
|
|
def test_copycharacters(self):
|
|||
|
|
from _testcapi import unicode_copycharacters
|
|||
|
|
|
|||
|
|
strings = [
|
|||
|
|
'abcde', '\xa1\xa2\xa3\xa4\xa5',
|
|||
|
|
'\u4f60\u597d\u4e16\u754c\uff01',
|
|||
|
|
'\U0001f600\U0001f601\U0001f602\U0001f603\U0001f604'
|
|||
|
|
]
|
|||
|
|
|
|||
|
|
for idx, from_ in enumerate(strings):
|
|||
|
|
# wide -> narrow: exceed maxchar limitation
|
|||
|
|
for to in strings[:idx]:
|
|||
|
|
self.assertRaises(
|
|||
|
|
SystemError,
|
|||
|
|
unicode_copycharacters, to, 0, from_, 0, 5
|
|||
|
|
)
|
|||
|
|
# same kind
|
|||
|
|
for from_start in range(5):
|
|||
|
|
self.assertEqual(
|
|||
|
|
unicode_copycharacters(from_, 0, from_, from_start, 5),
|
|||
|
|
(from_[from_start:from_start+5].ljust(5, '\0'),
|
|||
|
|
5-from_start)
|
|||
|
|
)
|
|||
|
|
for to_start in range(5):
|
|||
|
|
self.assertEqual(
|
|||
|
|
unicode_copycharacters(from_, to_start, from_, to_start, 5),
|
|||
|
|
(from_[to_start:to_start+5].rjust(5, '\0'),
|
|||
|
|
5-to_start)
|
|||
|
|
)
|
|||
|
|
# narrow -> wide
|
|||
|
|
# Tests omitted since this creates invalid strings.
|
|||
|
|
|
|||
|
|
s = strings[0]
|
|||
|
|
self.assertRaises(IndexError, unicode_copycharacters, s, 6, s, 0, 5)
|
|||
|
|
self.assertRaises(IndexError, unicode_copycharacters, s, -1, s, 0, 5)
|
|||
|
|
self.assertRaises(IndexError, unicode_copycharacters, s, 0, s, 6, 5)
|
|||
|
|
self.assertRaises(IndexError, unicode_copycharacters, s, 0, s, -1, 5)
|
|||
|
|
self.assertRaises(SystemError, unicode_copycharacters, s, 1, s, 0, 5)
|
|||
|
|
self.assertRaises(SystemError, unicode_copycharacters, s, 0, s, 0, -1)
|
|||
|
|
self.assertRaises(SystemError, unicode_copycharacters, s, 0, b'', 0, 0)
|
|||
|
|
|
|||
|
|
@support.cpython_only
|
|||
|
|
@unittest.skipIf(_testcapi is None, 'need _testcapi module')
|
|||
|
|
def test_pep393_utf8_caching_bug(self):
|
|||
|
|
# Issue #25709: Problem with string concatenation and utf-8 cache
|
|||
|
|
from _testcapi import getargs_s_hash
|
|||
|
|
for k in 0x24, 0xa4, 0x20ac, 0x1f40d:
|
|||
|
|
s = ''
|
|||
|
|
for i in range(5):
|
|||
|
|
# Due to CPython specific optimization the 's' string can be
|
|||
|
|
# resized in-place.
|
|||
|
|
s += chr(k)
|
|||
|
|
# Parsing with the "s#" format code calls indirectly
|
|||
|
|
# PyUnicode_AsUTF8AndSize() which creates the UTF-8
|
|||
|
|
# encoded string cached in the Unicode object.
|
|||
|
|
self.assertEqual(getargs_s_hash(s), chr(k).encode() * (i + 1))
|
|||
|
|
# Check that the second call returns the same result
|
|||
|
|
self.assertEqual(getargs_s_hash(s), chr(k).encode() * (i + 1))
|
|||
|
|
|
|||
|
|
|
|||
|
|
if __name__ == "__main__":
|
|||
|
|
unittest.main()
|