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Copy pathtest_getargs.py
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1301 lines (1113 loc) · 53.1 KB
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import unittest
import math
import string
import sys
from test import support
from test.support import import_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
# > 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
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
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), "'arg666' is an invalid keyword argument for this function")
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), "'\udc80' is an invalid keyword argument for this function")
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,
"'monster' is an invalid keyword argument for this function"):
getargs_keyword_only(1, 2, monster=666)
def test_surrogate_keyword(self):
with self.assertRaisesRegex(TypeError,
"'\udc80' is an invalid keyword argument for this function"):
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,
"invalid keyword argument for this function"):
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,
"invalid keyword argument for this function"):
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,
"'' is an invalid keyword argument for this function"):
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)
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)
def test_w_star(self):
# getargs_w_star() modifies first and last byte
from _testcapi import getargs_w_star
self.assertRaises(TypeError, getargs_w_star, 'abc\xe9')
self.assertRaises(TypeError, getargs_w_star, b'bytes')
self.assertRaises(TypeError, getargs_w_star, b'nul:\0')
self.assertRaises(TypeError, getargs_w_star, memoryview(b'bytes'))
buf = bytearray(b'bytearray')
self.assertEqual(getargs_w_star(buf), b'[ytearra]')
self.assertEqual(buf, bytearray(b'[ytearra]'))
buf = bytearray(b'memoryview')
self.assertEqual(getargs_w_star(memoryview(buf)), b'[emoryvie]')
self.assertEqual(buf, bytearray(b'[emoryvie]'))
self.assertRaises(TypeError, getargs_w_star, None)
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)
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)
def test_s_hash_int(self):
# "s#" without PY_SSIZE_T_CLEAN defined.
from _testcapi import getargs_s_hash_int
from _testcapi import getargs_s_hash_int2
buf = bytearray([1, 2])
self.assertRaises(SystemError, getargs_s_hash_int, buf, "abc")
self.assertRaises(SystemError, getargs_s_hash_int, buf, x=42)
self.assertRaises(SystemError, getargs_s_hash_int, buf, x="abc")
self.assertRaises(SystemError, getargs_s_hash_int2, buf, ("abc",))
self.assertRaises(SystemError, getargs_s_hash_int2, buf, x=42)
self.assertRaises(SystemError, getargs_s_hash_int2, buf, x="abc")
buf.append(3) # still mutable -- not locked by a buffer export
# getargs_s_hash_int(buf) may not raise SystemError because skipitem()
# is not called. But it is an implementation detail.
# getargs_s_hash_int(buf)
# getargs_s_hash_int2(buf)
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))
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))
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')