import unittest
import math
import string
import sys
from test import support
from test.support import import_helper
from test.support import script_helper
from test.support import warnings_helper
# Skip this test if the _testcapi module isn't available.
_testcapi = import_helper.import_module('_testcapi')
from _testcapi import getargs_keywords, getargs_keyword_only
try:
import _testinternalcapi
except ImportError:
_testinternalcapi = NULL
# > How about the following counterproposal. This also changes some of
# > the other format codes to be a little more regular.
# >
# > Code C type Range check
# >
# > b unsigned char 0..UCHAR_MAX
# > h signed short SHRT_MIN..SHRT_MAX
# > B unsigned char none **
# > H unsigned short none **
# > k * unsigned long none
# > I * unsigned int 0..UINT_MAX
#
#
# > i int INT_MIN..INT_MAX
# > l long LONG_MIN..LONG_MAX
#
# > K * unsigned long long none
# > L long long LLONG_MIN..LLONG_MAX
#
# > Notes:
# >
# > * New format codes.
# >
# > ** Changed from previous "range-and-a-half" to "none"; the
# > range-and-a-half checking wasn't particularly useful.
#
# Plus a C API or two, e.g. PyLong_AsUnsignedLongMask() ->
# unsigned long and PyLong_AsUnsignedLongLongMask() -> unsigned
# long long (if that exists).
LARGE = 0x7FFFFFFF
VERY_LARGE = 0xFF0000121212121212121242
from _testcapi import UCHAR_MAX, USHRT_MAX, UINT_MAX, ULONG_MAX, INT_MAX, \
INT_MIN, LONG_MIN, LONG_MAX, PY_SSIZE_T_MIN, PY_SSIZE_T_MAX, \
SHRT_MIN, SHRT_MAX, FLT_MIN, FLT_MAX, DBL_MIN, DBL_MAX
DBL_MAX_EXP = sys.float_info.max_exp
INF = float('inf')
NAN = float('nan')
# fake, they are not defined in Python's header files
LLONG_MAX = 2**63-1
LLONG_MIN = -2**63
ULLONG_MAX = 2**64-1
NULL = None
class Index:
def __index__(self):
return 99
class IndexIntSubclass(int):
def __index__(self):
return 99
class BadIndex:
def __index__(self):
return 1.0
class BadIndex2:
def __index__(self):
return True
class BadIndex3(int):
def __index__(self):
return True
class Int:
def __int__(self):
return 99
class IntSubclass(int):
def __int__(self):
return 99
class BadInt:
def __int__(self):
return 1.0
class BadInt2:
def __int__(self):
return True
class BadInt3(int):
def __int__(self):
return True
class Float:
def __float__(self):
return 4.25
class FloatSubclass(float):
pass
class FloatSubclass2(float):
def __float__(self):
return 4.25
class BadFloat:
def __float__(self):
return 687
class BadFloat2:
def __float__(self):
return FloatSubclass(4.25)
class BadFloat3(float):
def __float__(self):
return FloatSubclass(4.25)
class Complex:
def __complex__(self):
return 4.25+0.5j
class ComplexSubclass(complex):
pass
class ComplexSubclass2(complex):
def __complex__(self):
return 4.25+0.5j
class BadComplex:
def __complex__(self):
return 1.25
class BadComplex2:
def __complex__(self):
return ComplexSubclass(4.25+0.5j)
class BadComplex3(complex):
def __complex__(self):
return ComplexSubclass(4.25+0.5j)
class TupleSubclass(tuple):
pass
class DictSubclass(dict):
pass
NONCONTIG_WRITABLE = memoryview(bytearray(b'noncontig'))[::-2]
NONCONTIG_READONLY = memoryview(b'noncontig')[::-2]
class Unsigned_TestCase(unittest.TestCase):
def test_b(self):
from _testcapi import getargs_b
# b returns 'unsigned char', and does range checking (0 ... UCHAR_MAX)
self.assertRaises(TypeError, getargs_b, 3.14)
self.assertEqual(99, getargs_b(Index()))
self.assertEqual(0, getargs_b(IndexIntSubclass()))
self.assertRaises(TypeError, getargs_b, BadIndex())
with self.assertWarns(DeprecationWarning):
self.assertEqual(1, getargs_b(BadIndex2()))
self.assertEqual(0, getargs_b(BadIndex3()))
self.assertRaises(TypeError, getargs_b, Int())
self.assertEqual(0, getargs_b(IntSubclass()))
self.assertRaises(TypeError, getargs_b, BadInt())
self.assertRaises(TypeError, getargs_b, BadInt2())
self.assertEqual(0, getargs_b(BadInt3()))
self.assertRaises(OverflowError, getargs_b, -1)
self.assertEqual(0, getargs_b(0))
self.assertEqual(UCHAR_MAX, getargs_b(UCHAR_MAX))
self.assertRaises(OverflowError, getargs_b, UCHAR_MAX + 1)
self.assertEqual(42, getargs_b(42))
self.assertRaises(OverflowError, getargs_b, VERY_LARGE)
def test_B(self):
from _testcapi import getargs_B
# B returns 'unsigned char', no range checking
self.assertRaises(TypeError, getargs_B, 3.14)
self.assertEqual(99, getargs_B(Index()))
self.assertEqual(0, getargs_B(IndexIntSubclass()))
self.assertRaises(TypeError, getargs_B, BadIndex())
with self.assertWarns(DeprecationWarning):
self.assertEqual(1, getargs_B(BadIndex2()))
self.assertEqual(0, getargs_B(BadIndex3()))
self.assertRaises(TypeError, getargs_B, Int())
self.assertEqual(0, getargs_B(IntSubclass()))
self.assertRaises(TypeError, getargs_B, BadInt())
self.assertRaises(TypeError, getargs_B, BadInt2())
self.assertEqual(0, getargs_B(BadInt3()))
self.assertEqual(UCHAR_MAX, getargs_B(-1))
self.assertEqual(0, getargs_B(0))
self.assertEqual(UCHAR_MAX, getargs_B(UCHAR_MAX))
self.assertEqual(0, getargs_B(UCHAR_MAX+1))
self.assertEqual(42, getargs_B(42))
self.assertEqual(UCHAR_MAX & VERY_LARGE, getargs_B(VERY_LARGE))
def test_H(self):
from _testcapi import getargs_H
# H returns 'unsigned short', no range checking
self.assertRaises(TypeError, getargs_H, 3.14)
self.assertEqual(99, getargs_H(Index()))
self.assertEqual(0, getargs_H(IndexIntSubclass()))
self.assertRaises(TypeError, getargs_H, BadIndex())
with self.assertWarns(DeprecationWarning):
self.assertEqual(1, getargs_H(BadIndex2()))
self.assertEqual(0, getargs_H(BadIndex3()))
self.assertRaises(TypeError, getargs_H, Int())
self.assertEqual(0, getargs_H(IntSubclass()))
self.assertRaises(TypeError, getargs_H, BadInt())
self.assertRaises(TypeError, getargs_H, BadInt2())
self.assertEqual(0, getargs_H(BadInt3()))
self.assertEqual(USHRT_MAX, getargs_H(-1))
self.assertEqual(0, getargs_H(0))
self.assertEqual(USHRT_MAX, getargs_H(USHRT_MAX))
self.assertEqual(0, getargs_H(USHRT_MAX+1))
self.assertEqual(42, getargs_H(42))
self.assertEqual(VERY_LARGE & USHRT_MAX, getargs_H(VERY_LARGE))
def test_I(self):
from _testcapi import getargs_I
# I returns 'unsigned int', no range checking
self.assertRaises(TypeError, getargs_I, 3.14)
self.assertEqual(99, getargs_I(Index()))
self.assertEqual(0, getargs_I(IndexIntSubclass()))
self.assertRaises(TypeError, getargs_I, BadIndex())
with self.assertWarns(DeprecationWarning):
self.assertEqual(1, getargs_I(BadIndex2()))
self.assertEqual(0, getargs_I(BadIndex3()))
self.assertRaises(TypeError, getargs_I, Int())
self.assertEqual(0, getargs_I(IntSubclass()))
self.assertRaises(TypeError, getargs_I, BadInt())
self.assertRaises(TypeError, getargs_I, BadInt2())
self.assertEqual(0, getargs_I(BadInt3()))
self.assertEqual(UINT_MAX, getargs_I(-1))
self.assertEqual(0, getargs_I(0))
self.assertEqual(UINT_MAX, getargs_I(UINT_MAX))
self.assertEqual(0, getargs_I(UINT_MAX+1))
self.assertEqual(42, getargs_I(42))
self.assertEqual(VERY_LARGE & UINT_MAX, getargs_I(VERY_LARGE))
def test_k(self):
from _testcapi import getargs_k
# k returns 'unsigned long', no range checking
# it does not accept float, or instances with __int__
self.assertRaises(TypeError, getargs_k, 3.14)
self.assertRaises(TypeError, getargs_k, Index())
self.assertEqual(0, getargs_k(IndexIntSubclass()))
self.assertRaises(TypeError, getargs_k, BadIndex())
self.assertRaises(TypeError, getargs_k, BadIndex2())
self.assertEqual(0, getargs_k(BadIndex3()))
self.assertRaises(TypeError, getargs_k, Int())
self.assertEqual(0, getargs_k(IntSubclass()))
self.assertRaises(TypeError, getargs_k, BadInt())
self.assertRaises(TypeError, getargs_k, BadInt2())
self.assertEqual(0, getargs_k(BadInt3()))
self.assertEqual(ULONG_MAX, getargs_k(-1))
self.assertEqual(0, getargs_k(0))
self.assertEqual(ULONG_MAX, getargs_k(ULONG_MAX))
self.assertEqual(0, getargs_k(ULONG_MAX+1))
self.assertEqual(42, getargs_k(42))
self.assertEqual(VERY_LARGE & ULONG_MAX, getargs_k(VERY_LARGE))
class Signed_TestCase(unittest.TestCase):
def test_h(self):
from _testcapi import getargs_h
# h returns 'short', and does range checking (SHRT_MIN ... SHRT_MAX)
self.assertRaises(TypeError, getargs_h, 3.14)
self.assertEqual(99, getargs_h(Index()))
self.assertEqual(0, getargs_h(IndexIntSubclass()))
self.assertRaises(TypeError, getargs_h, BadIndex())
with self.assertWarns(DeprecationWarning):
self.assertEqual(1, getargs_h(BadIndex2()))
self.assertEqual(0, getargs_h(BadIndex3()))
self.assertRaises(TypeError, getargs_h, Int())
self.assertEqual(0, getargs_h(IntSubclass()))
self.assertRaises(TypeError, getargs_h, BadInt())
self.assertRaises(TypeError, getargs_h, BadInt2())
self.assertEqual(0, getargs_h(BadInt3()))
self.assertRaises(OverflowError, getargs_h, SHRT_MIN-1)
self.assertEqual(SHRT_MIN, getargs_h(SHRT_MIN))
self.assertEqual(SHRT_MAX, getargs_h(SHRT_MAX))
self.assertRaises(OverflowError, getargs_h, SHRT_MAX+1)
self.assertEqual(42, getargs_h(42))
self.assertRaises(OverflowError, getargs_h, VERY_LARGE)
def test_i(self):
from _testcapi import getargs_i
# i returns 'int', and does range checking (INT_MIN ... INT_MAX)
self.assertRaises(TypeError, getargs_i, 3.14)
self.assertEqual(99, getargs_i(Index()))
self.assertEqual(0, getargs_i(IndexIntSubclass()))
self.assertRaises(TypeError, getargs_i, BadIndex())
with self.assertWarns(DeprecationWarning):
self.assertEqual(1, getargs_i(BadIndex2()))
self.assertEqual(0, getargs_i(BadIndex3()))
self.assertRaises(TypeError, getargs_i, Int())
self.assertEqual(0, getargs_i(IntSubclass()))
self.assertRaises(TypeError, getargs_i, BadInt())
self.assertRaises(TypeError, getargs_i, BadInt2())
self.assertEqual(0, getargs_i(BadInt3()))
self.assertRaises(OverflowError, getargs_i, INT_MIN-1)
self.assertEqual(INT_MIN, getargs_i(INT_MIN))
self.assertEqual(INT_MAX, getargs_i(INT_MAX))
self.assertRaises(OverflowError, getargs_i, INT_MAX+1)
self.assertEqual(42, getargs_i(42))
self.assertRaises(OverflowError, getargs_i, VERY_LARGE)
def test_l(self):
from _testcapi import getargs_l
# l returns 'long', and does range checking (LONG_MIN ... LONG_MAX)
self.assertRaises(TypeError, getargs_l, 3.14)
self.assertEqual(99, getargs_l(Index()))
self.assertEqual(0, getargs_l(IndexIntSubclass()))
self.assertRaises(TypeError, getargs_l, BadIndex())
with self.assertWarns(DeprecationWarning):
self.assertEqual(1, getargs_l(BadIndex2()))
self.assertEqual(0, getargs_l(BadIndex3()))
self.assertRaises(TypeError, getargs_l, Int())
self.assertEqual(0, getargs_l(IntSubclass()))
self.assertRaises(TypeError, getargs_l, BadInt())
self.assertRaises(TypeError, getargs_l, BadInt2())
self.assertEqual(0, getargs_l(BadInt3()))
self.assertRaises(OverflowError, getargs_l, LONG_MIN-1)
self.assertEqual(LONG_MIN, getargs_l(LONG_MIN))
self.assertEqual(LONG_MAX, getargs_l(LONG_MAX))
self.assertRaises(OverflowError, getargs_l, LONG_MAX+1)
self.assertEqual(42, getargs_l(42))
self.assertRaises(OverflowError, getargs_l, VERY_LARGE)
def test_n(self):
from _testcapi import getargs_n
# n returns 'Py_ssize_t', and does range checking
# (PY_SSIZE_T_MIN ... PY_SSIZE_T_MAX)
self.assertRaises(TypeError, getargs_n, 3.14)
self.assertEqual(99, getargs_n(Index()))
self.assertEqual(0, getargs_n(IndexIntSubclass()))
self.assertRaises(TypeError, getargs_n, BadIndex())
with self.assertWarns(DeprecationWarning):
self.assertEqual(1, getargs_n(BadIndex2()))
self.assertEqual(0, getargs_n(BadIndex3()))
self.assertRaises(TypeError, getargs_n, Int())
self.assertEqual(0, getargs_n(IntSubclass()))
self.assertRaises(TypeError, getargs_n, BadInt())
self.assertRaises(TypeError, getargs_n, BadInt2())
self.assertEqual(0, getargs_n(BadInt3()))
self.assertRaises(OverflowError, getargs_n, PY_SSIZE_T_MIN-1)
self.assertEqual(PY_SSIZE_T_MIN, getargs_n(PY_SSIZE_T_MIN))
self.assertEqual(PY_SSIZE_T_MAX, getargs_n(PY_SSIZE_T_MAX))
self.assertRaises(OverflowError, getargs_n, PY_SSIZE_T_MAX+1)
self.assertEqual(42, getargs_n(42))
self.assertRaises(OverflowError, getargs_n, VERY_LARGE)
class LongLong_TestCase(unittest.TestCase):
def test_L(self):
from _testcapi import getargs_L
# L returns 'long long', and does range checking (LLONG_MIN
# ... LLONG_MAX)
self.assertRaises(TypeError, getargs_L, 3.14)
self.assertRaises(TypeError, getargs_L, "Hello")
self.assertEqual(99, getargs_L(Index()))
self.assertEqual(0, getargs_L(IndexIntSubclass()))
self.assertRaises(TypeError, getargs_L, BadIndex())
with self.assertWarns(DeprecationWarning):
self.assertEqual(1, getargs_L(BadIndex2()))
self.assertEqual(0, getargs_L(BadIndex3()))
self.assertRaises(TypeError, getargs_L, Int())
self.assertEqual(0, getargs_L(IntSubclass()))
self.assertRaises(TypeError, getargs_L, BadInt())
self.assertRaises(TypeError, getargs_L, BadInt2())
self.assertEqual(0, getargs_L(BadInt3()))
self.assertRaises(OverflowError, getargs_L, LLONG_MIN-1)
self.assertEqual(LLONG_MIN, getargs_L(LLONG_MIN))
self.assertEqual(LLONG_MAX, getargs_L(LLONG_MAX))
self.assertRaises(OverflowError, getargs_L, LLONG_MAX+1)
self.assertEqual(42, getargs_L(42))
self.assertRaises(OverflowError, getargs_L, VERY_LARGE)
def test_K(self):
from _testcapi import getargs_K
# K return 'unsigned long long', no range checking
self.assertRaises(TypeError, getargs_K, 3.14)
self.assertRaises(TypeError, getargs_K, Index())
self.assertEqual(0, getargs_K(IndexIntSubclass()))
self.assertRaises(TypeError, getargs_K, BadIndex())
self.assertRaises(TypeError, getargs_K, BadIndex2())
self.assertEqual(0, getargs_K(BadIndex3()))
self.assertRaises(TypeError, getargs_K, Int())
self.assertEqual(0, getargs_K(IntSubclass()))
self.assertRaises(TypeError, getargs_K, BadInt())
self.assertRaises(TypeError, getargs_K, BadInt2())
self.assertEqual(0, getargs_K(BadInt3()))
self.assertEqual(ULLONG_MAX, getargs_K(ULLONG_MAX))
self.assertEqual(0, getargs_K(0))
self.assertEqual(0, getargs_K(ULLONG_MAX+1))
self.assertEqual(42, getargs_K(42))
self.assertEqual(VERY_LARGE & ULLONG_MAX, getargs_K(VERY_LARGE))
class Float_TestCase(unittest.TestCase):
def assertEqualWithSign(self, actual, expected):
self.assertEqual(actual, expected)
self.assertEqual(math.copysign(1, actual), math.copysign(1, expected))
def test_f(self):
from _testcapi import getargs_f
self.assertEqual(getargs_f(4.25), 4.25)
self.assertEqual(getargs_f(4), 4.0)
self.assertRaises(TypeError, getargs_f, 4.25+0j)
self.assertEqual(getargs_f(Float()), 4.25)
self.assertEqual(getargs_f(FloatSubclass(7.5)), 7.5)
self.assertEqual(getargs_f(FloatSubclass2(7.5)), 7.5)
self.assertRaises(TypeError, getargs_f, BadFloat())
with self.assertWarns(DeprecationWarning):
self.assertEqual(getargs_f(BadFloat2()), 4.25)
self.assertEqual(getargs_f(BadFloat3(7.5)), 7.5)
self.assertEqual(getargs_f(Index()), 99.0)
self.assertRaises(TypeError, getargs_f, Int())
for x in (FLT_MIN, -FLT_MIN, FLT_MAX, -FLT_MAX, INF, -INF):
self.assertEqual(getargs_f(x), x)
if FLT_MAX < DBL_MAX:
self.assertEqual(getargs_f(DBL_MAX), INF)
self.assertEqual(getargs_f(-DBL_MAX), -INF)
if FLT_MIN > DBL_MIN:
self.assertEqualWithSign(getargs_f(DBL_MIN), 0.0)
self.assertEqualWithSign(getargs_f(-DBL_MIN), -0.0)
self.assertEqualWithSign(getargs_f(0.0), 0.0)
self.assertEqualWithSign(getargs_f(-0.0), -0.0)
r = getargs_f(NAN)
self.assertNotEqual(r, r)
@support.requires_IEEE_754
def test_f_rounding(self):
from _testcapi import getargs_f
self.assertEqual(getargs_f(3.40282356e38), FLT_MAX)
self.assertEqual(getargs_f(-3.40282356e38), -FLT_MAX)
def test_d(self):
from _testcapi import getargs_d
self.assertEqual(getargs_d(4.25), 4.25)
self.assertEqual(getargs_d(4), 4.0)
self.assertRaises(TypeError, getargs_d, 4.25+0j)
self.assertEqual(getargs_d(Float()), 4.25)
self.assertEqual(getargs_d(FloatSubclass(7.5)), 7.5)
self.assertEqual(getargs_d(FloatSubclass2(7.5)), 7.5)
self.assertRaises(TypeError, getargs_d, BadFloat())
with self.assertWarns(DeprecationWarning):
self.assertEqual(getargs_d(BadFloat2()), 4.25)
self.assertEqual(getargs_d(BadFloat3(7.5)), 7.5)
self.assertEqual(getargs_d(Index()), 99.0)
self.assertRaises(TypeError, getargs_d, Int())
for x in (DBL_MIN, -DBL_MIN, DBL_MAX, -DBL_MAX, INF, -INF):
self.assertEqual(getargs_d(x), x)
self.assertRaises(OverflowError, getargs_d, 1<<DBL_MAX_EXP)
self.assertRaises(OverflowError, getargs_d, -1<<DBL_MAX_EXP)
self.assertEqualWithSign(getargs_d(0.0), 0.0)
self.assertEqualWithSign(getargs_d(-0.0), -0.0)
r = getargs_d(NAN)
self.assertNotEqual(r, r)
def test_D(self):
from _testcapi import getargs_D
self.assertEqual(getargs_D(4.25+0.5j), 4.25+0.5j)
self.assertEqual(getargs_D(4.25), 4.25+0j)
self.assertEqual(getargs_D(4), 4.0+0j)
self.assertEqual(getargs_D(Complex()), 4.25+0.5j)
self.assertEqual(getargs_D(ComplexSubclass(7.5+0.25j)), 7.5+0.25j)
self.assertEqual(getargs_D(ComplexSubclass2(7.5+0.25j)), 7.5+0.25j)
self.assertRaises(TypeError, getargs_D, BadComplex())
with self.assertWarns(DeprecationWarning):
self.assertEqual(getargs_D(BadComplex2()), 4.25+0.5j)
self.assertEqual(getargs_D(BadComplex3(7.5+0.25j)), 7.5+0.25j)
self.assertEqual(getargs_D(Index()), 99.0+0j)
self.assertRaises(TypeError, getargs_D, Int())
for x in (DBL_MIN, -DBL_MIN, DBL_MAX, -DBL_MAX, INF, -INF):
c = complex(x, 1.0)
self.assertEqual(getargs_D(c), c)
c = complex(1.0, x)
self.assertEqual(getargs_D(c), c)
self.assertEqualWithSign(getargs_D(complex(0.0, 1.0)).real, 0.0)
self.assertEqualWithSign(getargs_D(complex(-0.0, 1.0)).real, -0.0)
self.assertEqualWithSign(getargs_D(complex(1.0, 0.0)).imag, 0.0)
self.assertEqualWithSign(getargs_D(complex(1.0, -0.0)).imag, -0.0)
class Paradox:
"This statement is false."
def __bool__(self):
raise NotImplementedError
class Boolean_TestCase(unittest.TestCase):
def test_p(self):
from _testcapi import getargs_p
self.assertEqual(0, getargs_p(False))
self.assertEqual(0, getargs_p(None))
self.assertEqual(0, getargs_p(0))
self.assertEqual(0, getargs_p(0.0))
self.assertEqual(0, getargs_p(0j))
self.assertEqual(0, getargs_p(''))
self.assertEqual(0, getargs_p(()))
self.assertEqual(0, getargs_p([]))
self.assertEqual(0, getargs_p({}))
self.assertEqual(1, getargs_p(True))
self.assertEqual(1, getargs_p(1))
self.assertEqual(1, getargs_p(1.0))
self.assertEqual(1, getargs_p(1j))
self.assertEqual(1, getargs_p('x'))
self.assertEqual(1, getargs_p((1,)))
self.assertEqual(1, getargs_p([1]))
self.assertEqual(1, getargs_p({1:2}))
self.assertEqual(1, getargs_p(unittest.TestCase))
self.assertRaises(NotImplementedError, getargs_p, Paradox())
class Tuple_TestCase(unittest.TestCase):
def test_args(self):
from _testcapi import get_args
ret = get_args(1, 2)
self.assertEqual(ret, (1, 2))
self.assertIs(type(ret), tuple)
ret = get_args(1, *(2, 3))
self.assertEqual(ret, (1, 2, 3))
self.assertIs(type(ret), tuple)
ret = get_args(*[1, 2])
self.assertEqual(ret, (1, 2))
self.assertIs(type(ret), tuple)
ret = get_args(*TupleSubclass([1, 2]))
self.assertEqual(ret, (1, 2))
self.assertIs(type(ret), tuple)
ret = get_args()
self.assertIn(ret, ((), None))
self.assertIn(type(ret), (tuple, type(None)))
ret = get_args(*())
self.assertIn(ret, ((), None))
self.assertIn(type(ret), (tuple, type(None)))
def test_tuple(self):
from _testcapi import getargs_tuple
ret = getargs_tuple(1, (2, 3))
self.assertEqual(ret, (1,2,3))
# make sure invalid tuple arguments are handled correctly
class seq:
def __len__(self):
return 2
def __getitem__(self, n):
raise ValueError
self.assertRaises(TypeError, getargs_tuple, 1, seq())
class Keywords_TestCase(unittest.TestCase):
def test_kwargs(self):
from _testcapi import get_kwargs
ret = get_kwargs(a=1, b=2)
self.assertEqual(ret, {'a': 1, 'b': 2})
self.assertIs(type(ret), dict)
ret = get_kwargs(a=1, **{'b': 2, 'c': 3})
self.assertEqual(ret, {'a': 1, 'b': 2, 'c': 3})
self.assertIs(type(ret), dict)
ret = get_kwargs(**DictSubclass({'a': 1, 'b': 2}))
self.assertEqual(ret, {'a': 1, 'b': 2})
self.assertIs(type(ret), dict)
ret = get_kwargs()
self.assertIn(ret, ({}, None))
self.assertIn(type(ret), (dict, type(None)))
ret = get_kwargs(**{})
self.assertIn(ret, ({}, None))
self.assertIn(type(ret), (dict, type(None)))
def test_positional_args(self):
# using all positional args
self.assertEqual(
getargs_keywords((1,2), 3, (4,(5,6)), (7,8,9), 10),
(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
)
def test_mixed_args(self):
# positional and keyword args
self.assertEqual(
getargs_keywords((1,2), 3, (4,(5,6)), arg4=(7,8,9), arg5=10),
(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
)
def test_keyword_args(self):
# all keywords
self.assertEqual(
getargs_keywords(arg1=(1,2), arg2=3, arg3=(4,(5,6)), arg4=(7,8,9), arg5=10),
(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
)
def test_optional_args(self):
# missing optional keyword args, skipping tuples
self.assertEqual(
getargs_keywords(arg1=(1,2), arg2=3, arg5=10),
(1, 2, 3, -1, -1, -1, -1, -1, -1, 10)
)
def test_required_args(self):
# required arg missing
try:
getargs_keywords(arg1=(1,2))
except TypeError as err:
self.assertEqual(
str(err), "function missing required argument 'arg2' (pos 2)")
else:
self.fail('TypeError should have been raised')
def test_too_many_args(self):
try:
getargs_keywords((1,2),3,(4,(5,6)),(7,8,9),10,111)
except TypeError as err:
self.assertEqual(str(err), "function takes at most 5 arguments (6 given)")
else:
self.fail('TypeError should have been raised')
def test_invalid_keyword(self):
# extraneous keyword arg
try:
getargs_keywords((1,2),3,arg5=10,arg666=666)
except TypeError as err:
self.assertEqual(str(err), "this function got an unexpected keyword argument 'arg666'")
else:
self.fail('TypeError should have been raised')
def test_surrogate_keyword(self):
try:
getargs_keywords((1,2), 3, (4,(5,6)), (7,8,9), **{'\uDC80': 10})
except TypeError as err:
self.assertEqual(str(err), "this function got an unexpected keyword argument '\udc80'")
else:
self.fail('TypeError should have been raised')
class KeywordOnly_TestCase(unittest.TestCase):
def test_positional_args(self):
# using all possible positional args
self.assertEqual(
getargs_keyword_only(1, 2),
(1, 2, -1)
)
def test_mixed_args(self):
# positional and keyword args
self.assertEqual(
getargs_keyword_only(1, 2, keyword_only=3),
(1, 2, 3)
)
def test_keyword_args(self):
# all keywords
self.assertEqual(
getargs_keyword_only(required=1, optional=2, keyword_only=3),
(1, 2, 3)
)
def test_optional_args(self):
# missing optional keyword args, skipping tuples
self.assertEqual(
getargs_keyword_only(required=1, optional=2),
(1, 2, -1)
)
self.assertEqual(
getargs_keyword_only(required=1, keyword_only=3),
(1, -1, 3)
)
def test_required_args(self):
self.assertEqual(
getargs_keyword_only(1),
(1, -1, -1)
)
self.assertEqual(
getargs_keyword_only(required=1),
(1, -1, -1)
)
# required arg missing
with self.assertRaisesRegex(TypeError,
r"function missing required argument 'required' \(pos 1\)"):
getargs_keyword_only(optional=2)
with self.assertRaisesRegex(TypeError,
r"function missing required argument 'required' \(pos 1\)"):
getargs_keyword_only(keyword_only=3)
def test_too_many_args(self):
with self.assertRaisesRegex(TypeError,
r"function takes at most 2 positional arguments \(3 given\)"):
getargs_keyword_only(1, 2, 3)
with self.assertRaisesRegex(TypeError,
r"function takes at most 3 arguments \(4 given\)"):
getargs_keyword_only(1, 2, 3, keyword_only=5)
def test_invalid_keyword(self):
# extraneous keyword arg
with self.assertRaisesRegex(TypeError,
"this function got an unexpected keyword argument 'monster'"):
getargs_keyword_only(1, 2, monster=666)
def test_surrogate_keyword(self):
with self.assertRaisesRegex(TypeError,
"this function got an unexpected keyword argument '\udc80'"):
getargs_keyword_only(1, 2, **{'\uDC80': 10})
def test_weird_str_subclass(self):
class BadStr(str):
def __eq__(self, other):
return True
def __hash__(self):
# Guaranteed different hash
return str.__hash__(self) ^ 3
with self.assertRaisesRegex(TypeError,
"invalid keyword argument for this function"):
getargs_keyword_only(1, 2, **{BadStr("keyword_only"): 3})
with self.assertRaisesRegex(TypeError,
"this function got an unexpected keyword argument"):
getargs_keyword_only(1, 2, **{BadStr("monster"): 666})
def test_weird_str_subclass2(self):
class BadStr(str):
def __eq__(self, other):
return False
def __hash__(self):
return str.__hash__(self)
with self.assertRaisesRegex(TypeError,
"invalid keyword argument for this function"):
getargs_keyword_only(1, 2, **{BadStr("keyword_only"): 3})
with self.assertRaisesRegex(TypeError,
"this function got an unexpected keyword argument"):
getargs_keyword_only(1, 2, **{BadStr("monster"): 666})
class PositionalOnlyAndKeywords_TestCase(unittest.TestCase):
from _testcapi import getargs_positional_only_and_keywords as getargs
def test_positional_args(self):
# using all possible positional args
self.assertEqual(self.getargs(1, 2, 3), (1, 2, 3))
def test_mixed_args(self):
# positional and keyword args
self.assertEqual(self.getargs(1, 2, keyword=3), (1, 2, 3))
def test_optional_args(self):
# missing optional args
self.assertEqual(self.getargs(1, 2), (1, 2, -1))
self.assertEqual(self.getargs(1, keyword=3), (1, -1, 3))
def test_required_args(self):
self.assertEqual(self.getargs(1), (1, -1, -1))
# required positional arg missing
with self.assertRaisesRegex(TypeError,
r"function takes at least 1 positional argument \(0 given\)"):
self.getargs()
with self.assertRaisesRegex(TypeError,
r"function takes at least 1 positional argument \(0 given\)"):
self.getargs(keyword=3)
def test_empty_keyword(self):
with self.assertRaisesRegex(TypeError,
"this function got an unexpected keyword argument ''"):
self.getargs(1, 2, **{'': 666})
class Bytes_TestCase(unittest.TestCase):
def test_c(self):
from _testcapi import getargs_c
self.assertRaises(TypeError, getargs_c, b'abc') # len > 1
self.assertEqual(getargs_c(b'a'), 97)
self.assertEqual(getargs_c(bytearray(b'a')), 97)
self.assertRaises(TypeError, getargs_c, memoryview(b'a'))
self.assertRaises(TypeError, getargs_c, 's')
self.assertRaises(TypeError, getargs_c, 97)
self.assertRaises(TypeError, getargs_c, None)
def test_y(self):
from _testcapi import getargs_y
self.assertRaises(TypeError, getargs_y, 'abc\xe9')
self.assertEqual(getargs_y(b'bytes'), b'bytes')
self.assertRaises(ValueError, getargs_y, b'nul:\0')
self.assertRaises(TypeError, getargs_y, bytearray(b'bytearray'))
self.assertRaises(TypeError, getargs_y, memoryview(b'memoryview'))
self.assertRaises(TypeError, getargs_y, None)
def test_y_star(self):
from _testcapi import getargs_y_star
self.assertRaises(TypeError, getargs_y_star, 'abc\xe9')
self.assertEqual(getargs_y_star(b'bytes'), b'bytes')
self.assertEqual(getargs_y_star(b'nul:\0'), b'nul:\0')
self.assertEqual(getargs_y_star(bytearray(b'bytearray')), b'bytearray')
self.assertEqual(getargs_y_star(memoryview(b'memoryview')), b'memoryview')
self.assertRaises(TypeError, getargs_y_star, None)
self.assertRaises(BufferError, getargs_y_star, NONCONTIG_WRITABLE)
self.assertRaises(BufferError, getargs_y_star, NONCONTIG_READONLY)
def test_y_hash(self):
from _testcapi import getargs_y_hash
self.assertRaises(TypeError, getargs_y_hash, 'abc\xe9')
self.assertEqual(getargs_y_hash(b'bytes'), b'bytes')
self.assertEqual(getargs_y_hash(b'nul:\0'), b'nul:\0')
self.assertRaises(TypeError, getargs_y_hash, bytearray(b'bytearray'))
self.assertRaises(TypeError, getargs_y_hash, memoryview(b'memoryview'))
self.assertRaises(TypeError, getargs_y_hash, None)
# TypeError: must be read-only bytes-like object, not memoryview
self.assertRaises(TypeError, getargs_y_hash, NONCONTIG_WRITABLE)
self.assertRaises(TypeError, getargs_y_hash, NONCONTIG_READONLY)
def test_w_star(self):
# getargs_w_star() modifies first and last byte
# getargs_w_star_opt() takes additional optional args: with one
# argument it should behave the same as getargs_w_star
from _testcapi import getargs_w_star, getargs_w_star_opt
for func in (getargs_w_star, getargs_w_star_opt):
with self.subTest(func=func):
self.assertRaises(TypeError, func, 'abc\xe9')
self.assertRaises(TypeError, func, b'bytes')
self.assertRaises(TypeError, func, b'nul:\0')
self.assertRaises(TypeError, func, memoryview(b'bytes'))
buf = bytearray(b'bytearray')
self.assertEqual(func(buf), b'[ytearra]')
self.assertEqual(buf, bytearray(b'[ytearra]'))
buf = bytearray(b'memoryview')
self.assertEqual(func(memoryview(buf)), b'[emoryvie]')
self.assertEqual(buf, bytearray(b'[emoryvie]'))
self.assertRaises(TypeError, func, None)
self.assertRaises(TypeError, func, NONCONTIG_WRITABLE)
self.assertRaises(TypeError, func, NONCONTIG_READONLY)
def test_getargs_empty(self):
from _testcapi import getargs_empty
self.assertTrue(getargs_empty())
self.assertRaises(TypeError, getargs_empty, 1)
self.assertRaises(TypeError, getargs_empty, 1, 2, 3)
self.assertRaises(TypeError, getargs_empty, a=1)
self.assertRaises(TypeError, getargs_empty, a=1, b=2)
self.assertRaises(TypeError, getargs_empty, 'x', 'y', 'z', a=1, b=2)
class String_TestCase(unittest.TestCase):
def test_C(self):
from _testcapi import getargs_C
self.assertRaises(TypeError, getargs_C, 'abc') # len > 1
self.assertEqual(getargs_C('a'), 97)
self.assertEqual(getargs_C('\u20ac'), 0x20ac)
self.assertEqual(getargs_C('\U0001f40d'), 0x1f40d)
self.assertRaises(TypeError, getargs_C, b'a')
self.assertRaises(TypeError, getargs_C, bytearray(b'a'))
self.assertRaises(TypeError, getargs_C, memoryview(b'a'))
self.assertRaises(TypeError, getargs_C, 97)
self.assertRaises(TypeError, getargs_C, None)
def test_s(self):
from _testcapi import getargs_s
self.assertEqual(getargs_s('abc\xe9'), b'abc\xc3\xa9')
self.assertRaises(ValueError, getargs_s, 'nul:\0')
self.assertRaises(TypeError, getargs_s, b'bytes')
self.assertRaises(TypeError, getargs_s, bytearray(b'bytearray'))
self.assertRaises(TypeError, getargs_s, memoryview(b'memoryview'))
self.assertRaises(TypeError, getargs_s, None)
def test_s_star(self):
from _testcapi import getargs_s_star
self.assertEqual(getargs_s_star('abc\xe9'), b'abc\xc3\xa9')
self.assertEqual(getargs_s_star('nul:\0'), b'nul:\0')
self.assertEqual(getargs_s_star(b'bytes'), b'bytes')
self.assertEqual(getargs_s_star(bytearray(b'bytearray')), b'bytearray')
self.assertEqual(getargs_s_star(memoryview(b'memoryview')), b'memoryview')
self.assertRaises(TypeError, getargs_s_star, None)
self.assertRaises(BufferError, getargs_s_star, NONCONTIG_WRITABLE)
self.assertRaises(BufferError, getargs_s_star, NONCONTIG_READONLY)
def test_s_hash(self):
from _testcapi import getargs_s_hash
self.assertEqual(getargs_s_hash('abc\xe9'), b'abc\xc3\xa9')
self.assertEqual(getargs_s_hash('nul:\0'), b'nul:\0')
self.assertEqual(getargs_s_hash(b'bytes'), b'bytes')
self.assertRaises(TypeError, getargs_s_hash, bytearray(b'bytearray'))
self.assertRaises(TypeError, getargs_s_hash, memoryview(b'memoryview'))
self.assertRaises(TypeError, getargs_s_hash, None)
# TypeError: must be read-only bytes-like object, not memoryview
self.assertRaises(TypeError, getargs_s_hash, NONCONTIG_WRITABLE)
self.assertRaises(TypeError, getargs_s_hash, NONCONTIG_READONLY)
def test_z(self):
from _testcapi import getargs_z
self.assertEqual(getargs_z('abc\xe9'), b'abc\xc3\xa9')
self.assertRaises(ValueError, getargs_z, 'nul:\0')
self.assertRaises(TypeError, getargs_z, b'bytes')
self.assertRaises(TypeError, getargs_z, bytearray(b'bytearray'))
self.assertRaises(TypeError, getargs_z, memoryview(b'memoryview'))
self.assertIsNone(getargs_z(None))
def test_z_star(self):
from _testcapi import getargs_z_star
self.assertEqual(getargs_z_star('abc\xe9'), b'abc\xc3\xa9')
self.assertEqual(getargs_z_star('nul:\0'), b'nul:\0')
self.assertEqual(getargs_z_star(b'bytes'), b'bytes')
self.assertEqual(getargs_z_star(bytearray(b'bytearray')), b'bytearray')
self.assertEqual(getargs_z_star(memoryview(b'memoryview')), b'memoryview')
self.assertIsNone(getargs_z_star(None))
self.assertRaises(BufferError, getargs_z_star, NONCONTIG_WRITABLE)
self.assertRaises(BufferError, getargs_z_star, NONCONTIG_READONLY)
def test_z_hash(self):
from _testcapi import getargs_z_hash
self.assertEqual(getargs_z_hash('abc\xe9'), b'abc\xc3\xa9')
self.assertEqual(getargs_z_hash('nul:\0'), b'nul:\0')
self.assertEqual(getargs_z_hash(b'bytes'), b'bytes')
self.assertRaises(TypeError, getargs_z_hash, bytearray(b'bytearray'))
self.assertRaises(TypeError, getargs_z_hash, memoryview(b'memoryview'))
self.assertIsNone(getargs_z_hash(None))
# TypeError: must be read-only bytes-like object, not memoryview
self.assertRaises(TypeError, getargs_z_hash, NONCONTIG_WRITABLE)
self.assertRaises(TypeError, getargs_z_hash, NONCONTIG_READONLY)
def test_es(self):
from _testcapi import getargs_es
self.assertEqual(getargs_es('abc\xe9'), b'abc\xc3\xa9')
self.assertEqual(getargs_es('abc\xe9', 'latin1'), b'abc\xe9')
self.assertRaises(UnicodeEncodeError, getargs_es, 'abc\xe9', 'ascii')
self.assertRaises(LookupError, getargs_es, 'abc\xe9', 'spam')
self.assertRaises(TypeError, getargs_es, b'bytes', 'latin1')
self.assertRaises(TypeError, getargs_es, bytearray(b'bytearray'), 'latin1')
self.assertRaises(TypeError, getargs_es, memoryview(b'memoryview'), 'latin1')
self.assertRaises(TypeError, getargs_es, None, 'latin1')
self.assertRaises(TypeError, getargs_es, 'nul:\0', 'latin1')
def test_et(self):
from _testcapi import getargs_et
self.assertEqual(getargs_et('abc\xe9'), b'abc\xc3\xa9')
self.assertEqual(getargs_et('abc\xe9', 'latin1'), b'abc\xe9')
self.assertRaises(UnicodeEncodeError, getargs_et, 'abc\xe9', 'ascii')
self.assertRaises(LookupError, getargs_et, 'abc\xe9', 'spam')
self.assertEqual(getargs_et(b'bytes', 'latin1'), b'bytes')
self.assertEqual(getargs_et(bytearray(b'bytearray'), 'latin1'), b'bytearray')
self.assertRaises(TypeError, getargs_et, memoryview(b'memoryview'), 'latin1')
self.assertRaises(TypeError, getargs_et, None, 'latin1')
self.assertRaises(TypeError, getargs_et, 'nul:\0', 'latin1')
self.assertRaises(TypeError, getargs_et, b'nul:\0', 'latin1')
self.assertRaises(TypeError, getargs_et, bytearray(b'nul:\0'), 'latin1')
def test_es_hash(self):
from _testcapi import getargs_es_hash
self.assertEqual(getargs_es_hash('abc\xe9'), b'abc\xc3\xa9')
self.assertEqual(getargs_es_hash('abc\xe9', 'latin1'), b'abc\xe9')
self.assertRaises(UnicodeEncodeError, getargs_es_hash, 'abc\xe9', 'ascii')
self.assertRaises(LookupError, getargs_es_hash, 'abc\xe9', 'spam')
self.assertRaises(TypeError, getargs_es_hash, b'bytes', 'latin1')
self.assertRaises(TypeError, getargs_es_hash, bytearray(b'bytearray'), 'latin1')
self.assertRaises(TypeError, getargs_es_hash, memoryview(b'memoryview'), 'latin1')
self.assertRaises(TypeError, getargs_es_hash, None, 'latin1')
self.assertEqual(getargs_es_hash('nul:\0', 'latin1'), b'nul:\0')
buf = bytearray(b'x'*8)
self.assertEqual(getargs_es_hash('abc\xe9', 'latin1', buf), b'abc\xe9')
self.assertEqual(buf, bytearray(b'abc\xe9\x00xxx'))
buf = bytearray(b'x'*5)
self.assertEqual(getargs_es_hash('abc\xe9', 'latin1', buf), b'abc\xe9')
self.assertEqual(buf, bytearray(b'abc\xe9\x00'))
buf = bytearray(b'x'*4)
self.assertRaises(ValueError, getargs_es_hash, 'abc\xe9', 'latin1', buf)
self.assertEqual(buf, bytearray(b'x'*4))
buf = bytearray()
self.assertRaises(ValueError, getargs_es_hash, 'abc\xe9', 'latin1', buf)
def test_et_hash(self):
from _testcapi import getargs_et_hash
self.assertEqual(getargs_et_hash('abc\xe9'), b'abc\xc3\xa9')
self.assertEqual(getargs_et_hash('abc\xe9', 'latin1'), b'abc\xe9')
self.assertRaises(UnicodeEncodeError, getargs_et_hash, 'abc\xe9', 'ascii')
self.assertRaises(LookupError, getargs_et_hash, 'abc\xe9', 'spam')
self.assertEqual(getargs_et_hash(b'bytes', 'latin1'), b'bytes')
self.assertEqual(getargs_et_hash(bytearray(b'bytearray'), 'latin1'), b'bytearray')
self.assertRaises(TypeError, getargs_et_hash, memoryview(b'memoryview'), 'latin1')
self.assertRaises(TypeError, getargs_et_hash, None, 'latin1')
self.assertEqual(getargs_et_hash('nul:\0', 'latin1'), b'nul:\0')
self.assertEqual(getargs_et_hash(b'nul:\0', 'latin1'), b'nul:\0')
self.assertEqual(getargs_et_hash(bytearray(b'nul:\0'), 'latin1'), b'nul:\0')
buf = bytearray(b'x'*8)
self.assertEqual(getargs_et_hash('abc\xe9', 'latin1', buf), b'abc\xe9')
self.assertEqual(buf, bytearray(b'abc\xe9\x00xxx'))
buf = bytearray(b'x'*5)
self.assertEqual(getargs_et_hash('abc\xe9', 'latin1', buf), b'abc\xe9')
self.assertEqual(buf, bytearray(b'abc\xe9\x00'))
buf = bytearray(b'x'*4)
self.assertRaises(ValueError, getargs_et_hash, 'abc\xe9', 'latin1', buf)
self.assertEqual(buf, bytearray(b'x'*4))
buf = bytearray()
self.assertRaises(ValueError, getargs_et_hash, 'abc\xe9', 'latin1', buf)
def test_gh_99240_clear_args(self):
from _testcapi import gh_99240_clear_args
self.assertRaises(TypeError, gh_99240_clear_args, 'a', '\0b')
class Object_TestCase(unittest.TestCase):
def test_S(self):
from _testcapi import getargs_S
obj = b'bytes'
self.assertIs(getargs_S(obj), obj)
self.assertRaises(TypeError, getargs_S, bytearray(b'bytearray'))
self.assertRaises(TypeError, getargs_S, 'str')
self.assertRaises(TypeError, getargs_S, None)
self.assertRaises(TypeError, getargs_S, memoryview(obj))
def test_Y(self):
from _testcapi import getargs_Y
obj = bytearray(b'bytearray')
self.assertIs(getargs_Y(obj), obj)
self.assertRaises(TypeError, getargs_Y, b'bytes')
self.assertRaises(TypeError, getargs_Y, 'str')
self.assertRaises(TypeError, getargs_Y, None)
self.assertRaises(TypeError, getargs_Y, memoryview(obj))
def test_U(self):
from _testcapi import getargs_U
obj = 'str'
self.assertIs(getargs_U(obj), obj)
self.assertRaises(TypeError, getargs_U, b'bytes')
self.assertRaises(TypeError, getargs_U, bytearray(b'bytearray'))
self.assertRaises(TypeError, getargs_U, None)
# Bug #6012
class Test6012(unittest.TestCase):
def test(self):
self.assertEqual(_testcapi.argparsing("Hello", "World"), 1)
class SkipitemTest(unittest.TestCase):
# u, and Z raises DeprecationWarning
@warnings_helper.ignore_warnings(category=DeprecationWarning)
def test_skipitem(self):
"""
If this test failed, you probably added a new "format unit"
in Python/getargs.c, but neglected to update our poor friend
skipitem() in the same file. (If so, shame on you!)
With a few exceptions**, this function brute-force tests all
printable ASCII*** characters (32 to 126 inclusive) as format units,
checking to see that PyArg_ParseTupleAndKeywords() return consistent
errors both when the unit is attempted to be used and when it is
skipped. If the format unit doesn't exist, we'll get one of two
specific error messages (one for used, one for skipped); if it does
exist we *won't* get that error--we'll get either no error or some
other error. If we get the specific "does not exist" error for one
test and not for the other, there's a mismatch, and the test fails.
** Some format units have special funny semantics and it would
be difficult to accommodate them here. Since these are all
well-established and properly skipped in skipitem() we can
get away with not testing them--this test is really intended
to catch *new* format units.
*** Python C source files must be ASCII. Therefore it's impossible
to have non-ASCII format units.
"""
empty_tuple = ()
tuple_1 = (0,)
dict_b = {'b':1}
keywords = ["a", "b"]
for i in range(32, 127):
c = chr(i)
# skip parentheses, the error reporting is inconsistent about them
# skip 'e' and 'w', they're always two-character codes
# skip '|' and '$', they don't represent arguments anyway
if c in '()ew|$':
continue
# test the format unit when not skipped
format = c + "i"
try:
_testcapi.parse_tuple_and_keywords(tuple_1, dict_b,
format, keywords)
when_not_skipped = False
except SystemError as e:
s = "argument 1 (impossible<bad format char>)"
when_not_skipped = (str(e) == s)
except TypeError:
when_not_skipped = False
# test the format unit when skipped
optional_format = "|" + format
try:
_testcapi.parse_tuple_and_keywords(empty_tuple, dict_b,
optional_format, keywords)
when_skipped = False
except SystemError as e:
s = "impossible<bad format char>: '{}'".format(format)
when_skipped = (str(e) == s)
message = ("test_skipitem_parity: "
"detected mismatch between convertsimple and skipitem "
"for format unit '{}' ({}), not skipped {}, skipped {}".format(
c, i, when_skipped, when_not_skipped))
self.assertIs(when_skipped, when_not_skipped, message)
def test_skipitem_with_suffix(self):
parse = _testcapi.parse_tuple_and_keywords
empty_tuple = ()
tuple_1 = (0,)
dict_b = {'b':1}
keywords = ["a", "b"]
supported = ('s#', 's*', 'z#', 'z*', 'y#', 'y*', 'w*')
for c in string.ascii_letters:
for c2 in '#*':
f = c + c2
with self.subTest(format=f):
optional_format = "|" + f + "i"
if f in supported:
parse(empty_tuple, dict_b, optional_format, keywords)
else:
with self.assertRaisesRegex(SystemError,
'impossible<bad format char>'):
parse(empty_tuple, dict_b, optional_format, keywords)
for c in map(chr, range(32, 128)):
f = 'e' + c
optional_format = "|" + f + "i"
with self.subTest(format=f):
if c in 'st':
parse(empty_tuple, dict_b, optional_format, keywords)
else:
with self.assertRaisesRegex(SystemError,
'impossible<bad format char>'):
parse(empty_tuple, dict_b, optional_format, keywords)
class ParseTupleAndKeywords_Test(unittest.TestCase):
def test_parse_tuple_and_keywords(self):
# Test handling errors in the parse_tuple_and_keywords helper itself
self.assertRaises(TypeError, _testcapi.parse_tuple_and_keywords,
(), {}, 42, [])
self.assertRaises(ValueError, _testcapi.parse_tuple_and_keywords,
(), {}, '', 42)
self.assertRaises(ValueError, _testcapi.parse_tuple_and_keywords,
(), {}, '', [''] * 42)
self.assertRaises(ValueError, _testcapi.parse_tuple_and_keywords,
(), {}, '', [42])
def test_basic(self):
parse = _testcapi.parse_tuple_and_keywords
self.assertEqual(parse((), {'a': 1}, 'O', ['a']), (1,))
self.assertEqual(parse((), {}, '|O', ['a']), (NULL,))
self.assertEqual(parse((1, 2), {}, 'OO', ['a', 'b']), (1, 2))
self.assertEqual(parse((1,), {'b': 2}, 'OO', ['a', 'b']), (1, 2))
self.assertEqual(parse((), {'a': 1, 'b': 2}, 'OO', ['a', 'b']), (1, 2))
self.assertEqual(parse((), {'b': 2}, '|OO', ['a', 'b']), (NULL, 2))
with self.assertRaisesRegex(TypeError,
"function missing required argument 'a'"):
parse((), {}, 'O', ['a'])
with self.assertRaisesRegex(TypeError,
"this function got an unexpected keyword argument 'b'"):
parse((), {'b': 1}, '|O', ['a'])
with self.assertRaisesRegex(TypeError,
fr"argument for function given by name \('a'\) "
fr"and position \(1\)"):
parse((1,), {'a': 2}, 'O|O', ['a', 'b'])
def test_bad_use(self):
# Test handling invalid format and keywords in
# PyArg_ParseTupleAndKeywords()
self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords,
(1,), {}, '||O', ['a'])
self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords,
(1, 2), {}, '|O|O', ['a', 'b'])
self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords,
(), {'a': 1}, '$$O', ['a'])
self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords,
(), {'a': 1, 'b': 2}, '$O$O', ['a', 'b'])
self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords,
(), {'a': 1}, '$|O', ['a'])
self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords,
(), {'a': 1, 'b': 2}, '$O|O', ['a', 'b'])
self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords,
(1,), {}, '|O', ['a', 'b'])
self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords,
(1,), {}, '|OO', ['a'])
self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords,
(), {}, '|$O', [''])
self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords,
(), {}, '|OO', ['a', ''])
def test_positional_only(self):
parse = _testcapi.parse_tuple_and_keywords
self.assertEqual(parse((1, 2, 3), {}, 'OOO', ['', '', 'a']), (1, 2, 3))
self.assertEqual(parse((1, 2), {'a': 3}, 'OOO', ['', '', 'a']), (1, 2, 3))
with self.assertRaisesRegex(TypeError,
r'function takes at least 2 positional arguments \(1 given\)'):
parse((1,), {'a': 3}, 'OOO', ['', '', 'a'])
self.assertEqual(parse((1,), {}, 'O|OO', ['', '', 'a']),
(1, NULL, NULL))
with self.assertRaisesRegex(TypeError,
r'function takes at least 1 positional argument \(0 given\)'):
parse((), {}, 'O|OO', ['', '', 'a'])
self.assertEqual(parse((1, 2), {'a': 3}, 'OO$O', ['', '', 'a']),
(1, 2, 3))
with self.assertRaisesRegex(TypeError,
r'function takes exactly 2 positional arguments \(1 given\)'):
parse((1,), {'a': 3}, 'OO$O', ['', '', 'a'])
self.assertEqual(parse((1,), {}, 'O|O$O', ['', '', 'a']),
(1, NULL, NULL))
with self.assertRaisesRegex(TypeError,
r'function takes at least 1 positional argument \(0 given\)'):
parse((), {}, 'O|O$O', ['', '', 'a'])
with self.assertRaisesRegex(SystemError, r'Empty parameter name after \$'):
parse((1,), {}, 'O|$OO', ['', '', 'a'])
with self.assertRaisesRegex(SystemError, 'Empty keyword'):
parse((1,), {}, 'O|OO', ['', 'a', ''])
def test_nonascii_keywords(self):
parse = _testcapi.parse_tuple_and_keywords
for name in ('a', 'ä', 'ŷ', '㷷', '𐀀'):
with self.subTest(name=name):
self.assertEqual(parse((), {name: 1}, 'O', [name]), (1,))
self.assertEqual(parse((), {}, '|O', [name]), (NULL,))
with self.assertRaisesRegex(TypeError,
f"function missing required argument '{name}'"):
parse((), {}, 'O', [name])
with self.assertRaisesRegex(TypeError,
fr"argument for function given by name \('{name}'\) "
fr"and position \(1\)"):
parse((1,), {name: 2}, 'O|O', [name, 'b'])
with self.assertRaisesRegex(TypeError,
f"this function got an unexpected keyword argument '{name}'"):
parse((), {name: 1}, '|O', ['b'])
with self.assertRaisesRegex(TypeError,
"this function got an unexpected keyword argument 'b'"):
parse((), {'b': 1}, '|O', [name])
invalid = name.encode() + (name.encode()[:-1] or b'\x80')
self.assertEqual(parse((), {}, '|O', [invalid]), (NULL,))
self.assertEqual(parse((1,), {'b': 2}, 'O|O', [invalid, 'b']),
(1, 2))
with self.assertRaisesRegex(TypeError,
f"function missing required argument '{name}\ufffd'"):
parse((), {}, 'O', [invalid])
with self.assertRaisesRegex(UnicodeDecodeError,
f"'utf-8' codec can't decode bytes? "):
parse((), {'b': 1}, '|OO', [invalid, 'b'])
with self.assertRaisesRegex(UnicodeDecodeError,
f"'utf-8' codec can't decode bytes? "):
parse((), {'b': 1}, '|O', [invalid])
for name2 in ('b', 'ë', 'ĉ', 'Ɐ', '𐀁'):
with self.subTest(name2=name2):
with self.assertRaisesRegex(TypeError,
f"this function got an unexpected keyword argument '{name2}'"):
parse((), {name2: 1}, '|O', [name])
name2 = name.encode().decode('latin1')
if name2 != name:
with self.assertRaisesRegex(TypeError,
f"this function got an unexpected keyword argument '{name2}'"):
parse((), {name2: 1}, '|O', [name])
name3 = name + '3'
with self.assertRaisesRegex(TypeError,
f"this function got an unexpected keyword argument '{name2}'"):
parse((), {name2: 1, name3: 2}, '|OO', [name, name3])
def test_nested_tuple(self):
parse = _testcapi.parse_tuple_and_keywords
self.assertEqual(parse(((1, 2, 3),), {}, '(OOO)', ['a']), (1, 2, 3))
self.assertEqual(parse((1, (2, 3), 4), {}, 'O(OO)O', ['a', 'b', 'c']),
(1, 2, 3, 4))
parse(((1, 2, 3),), {}, '(iii)', ['a'])
with self.assertRaisesRegex(TypeError,
"argument 1 must be sequence of length 2, not 3"):
parse(((1, 2, 3),), {}, '(ii)', ['a'])
with self.assertRaisesRegex(TypeError,
"argument 1 must be sequence of length 2, not 1"):
parse(((1,),), {}, '(ii)', ['a'])
with self.assertRaisesRegex(TypeError,
"argument 1 must be 2-item sequence, not int"):
parse((1,), {}, '(ii)', ['a'])
with self.assertRaisesRegex(TypeError,
"argument 1 must be 2-item sequence, not bytes"):
parse((b'ab',), {}, '(ii)', ['a'])
for f in 'es', 'et', 'es#', 'et#':
with self.assertRaises(LookupError): # empty encoding ""
parse((('a',),), {}, '(' + f + ')', ['a'])
with self.assertRaisesRegex(TypeError,
"argument 1 must be sequence of length 1, not 0"):
parse(((),), {}, '(' + f + ')', ['a'])
@unittest.skipIf(_testinternalcapi is None, 'needs _testinternalcapi')
def test_gh_119213(self):
rc, out, err = script_helper.assert_python_ok("-c", """if True:
from test import support
script = '''if True:
import _testinternalcapi
_testinternalcapi.gh_119213_getargs(spam='eggs')
'''
config = dict(
allow_fork=False,
allow_exec=False,
allow_threads=True,
allow_daemon_threads=False,
use_main_obmalloc=False,
gil=2,
check_multi_interp_extensions=True,
)
rc = support.run_in_subinterp_with_config(script, **config)
assert rc == 0
# The crash is different if the interpreter was not destroyed first.
#interpid = _testinternalcapi.create_interpreter()
#rc = _testinternalcapi.exec_interpreter(interpid, script)
#assert rc == 0
""")
self.assertEqual(rc, 0)
if __name__ == "__main__":
unittest.main()
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