from test
import test_support
warnings
.filterwarnings("ignore",
category
=DeprecationWarning,
message
=".*integer argument expected, got float",
warnings
.filterwarnings("ignore",
category
=DeprecationWarning,
message
=".*integer argument expected, got float",
> 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 **
> I * unsigned int 0..UINT_MAX
> l long LONG_MIN..LONG_MAX
> K * unsigned long long none
> L long long LLONG_MIN..LLONG_MAX
> ** 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. PyInt_AsLongMask() ->
unsigned long and PyInt_AsLongLongMask() -> unsigned
long long (if that exists).
VERY_LARGE
= 0xFF0000121212121212121242L
from _testcapi
import UCHAR_MAX
, USHRT_MAX
, UINT_MAX
, ULONG_MAX
, INT_MAX
, \
INT_MIN
, LONG_MIN
, LONG_MAX
# fake, they are not defined in Python's header files
class Unsigned_TestCase(unittest
.TestCase
):
from _testcapi
import getargs_b
# b returns 'unsigned char', and does range checking (0 ... UCHAR_MAX)
self
.failUnlessEqual(3, getargs_b(3.14))
self
.failUnlessEqual(99, getargs_b(Long()))
self
.failUnlessEqual(99, getargs_b(Int()))
self
.assertRaises(OverflowError, getargs_b
, -1)
self
.failUnlessEqual(0, getargs_b(0))
self
.failUnlessEqual(UCHAR_MAX
, getargs_b(UCHAR_MAX
))
self
.assertRaises(OverflowError, getargs_b
, UCHAR_MAX
+ 1)
self
.failUnlessEqual(42, getargs_b(42))
self
.failUnlessEqual(42, getargs_b(42L))
self
.assertRaises(OverflowError, getargs_b
, VERY_LARGE
)
from _testcapi
import getargs_B
# B returns 'unsigned char', no range checking
self
.failUnlessEqual(3, getargs_B(3.14))
self
.failUnlessEqual(99, getargs_B(Long()))
self
.failUnlessEqual(99, getargs_B(Int()))
self
.failUnlessEqual(UCHAR_MAX
, getargs_B(-1))
self
.failUnlessEqual(UCHAR_MAX
, getargs_B(-1L))
self
.failUnlessEqual(0, getargs_B(0))
self
.failUnlessEqual(UCHAR_MAX
, getargs_B(UCHAR_MAX
))
self
.failUnlessEqual(0, getargs_B(UCHAR_MAX
+1))
self
.failUnlessEqual(42, getargs_B(42))
self
.failUnlessEqual(42, getargs_B(42L))
self
.failUnlessEqual(UCHAR_MAX
& VERY_LARGE
, getargs_B(VERY_LARGE
))
from _testcapi
import getargs_H
# H returns 'unsigned short', no range checking
self
.failUnlessEqual(3, getargs_H(3.14))
self
.failUnlessEqual(99, getargs_H(Long()))
self
.failUnlessEqual(99, getargs_H(Int()))
self
.failUnlessEqual(USHRT_MAX
, getargs_H(-1))
self
.failUnlessEqual(0, getargs_H(0))
self
.failUnlessEqual(USHRT_MAX
, getargs_H(USHRT_MAX
))
self
.failUnlessEqual(0, getargs_H(USHRT_MAX
+1))
self
.failUnlessEqual(42, getargs_H(42))
self
.failUnlessEqual(42, getargs_H(42L))
self
.failUnlessEqual(VERY_LARGE
& USHRT_MAX
, getargs_H(VERY_LARGE
))
from _testcapi
import getargs_I
# I returns 'unsigned int', no range checking
self
.failUnlessEqual(3, getargs_I(3.14))
self
.failUnlessEqual(99, getargs_I(Long()))
self
.failUnlessEqual(99, getargs_I(Int()))
self
.failUnlessEqual(UINT_MAX
, getargs_I(-1))
self
.failUnlessEqual(0, getargs_I(0))
self
.failUnlessEqual(UINT_MAX
, getargs_I(UINT_MAX
))
self
.failUnlessEqual(0, getargs_I(UINT_MAX
+1))
self
.failUnlessEqual(42, getargs_I(42))
self
.failUnlessEqual(42, getargs_I(42L))
self
.failUnlessEqual(VERY_LARGE
& UINT_MAX
, getargs_I(VERY_LARGE
))
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
, Long())
self
.assertRaises(TypeError, getargs_k
, Int())
self
.failUnlessEqual(ULONG_MAX
, getargs_k(-1))
self
.failUnlessEqual(0, getargs_k(0))
self
.failUnlessEqual(ULONG_MAX
, getargs_k(ULONG_MAX
))
self
.failUnlessEqual(0, getargs_k(ULONG_MAX
+1))
self
.failUnlessEqual(42, getargs_k(42))
self
.failUnlessEqual(42, getargs_k(42L))
self
.failUnlessEqual(VERY_LARGE
& ULONG_MAX
, getargs_k(VERY_LARGE
))
class Signed_TestCase(unittest
.TestCase
):
from _testcapi
import getargs_i
# i returns 'int', and does range checking (INT_MIN ... INT_MAX)
self
.failUnlessEqual(3, getargs_i(3.14))
self
.failUnlessEqual(99, getargs_i(Long()))
self
.failUnlessEqual(99, getargs_i(Int()))
self
.assertRaises(OverflowError, getargs_i
, INT_MIN
-1)
self
.failUnlessEqual(INT_MIN
, getargs_i(INT_MIN
))
self
.failUnlessEqual(INT_MAX
, getargs_i(INT_MAX
))
self
.assertRaises(OverflowError, getargs_i
, INT_MAX
+1)
self
.failUnlessEqual(42, getargs_i(42))
self
.failUnlessEqual(42, getargs_i(42L))
self
.assertRaises(OverflowError, getargs_i
, VERY_LARGE
)
from _testcapi
import getargs_l
# l returns 'long', and does range checking (LONG_MIN ... LONG_MAX)
self
.failUnlessEqual(3, getargs_l(3.14))
self
.failUnlessEqual(99, getargs_l(Long()))
self
.failUnlessEqual(99, getargs_l(Int()))
self
.assertRaises(OverflowError, getargs_l
, LONG_MIN
-1)
self
.failUnlessEqual(LONG_MIN
, getargs_l(LONG_MIN
))
self
.failUnlessEqual(LONG_MAX
, getargs_l(LONG_MAX
))
self
.assertRaises(OverflowError, getargs_l
, LONG_MAX
+1)
self
.failUnlessEqual(42, getargs_l(42))
self
.failUnlessEqual(42, getargs_l(42L))
self
.assertRaises(OverflowError, getargs_l
, VERY_LARGE
)
class LongLong_TestCase(unittest
.TestCase
):
from _testcapi
import getargs_L
# L returns 'long long', and does range checking (LLONG_MIN ... LLONG_MAX)
self
.failUnlessRaises(TypeError, getargs_L
, "Hello")
self
.failUnlessEqual(3, getargs_L(3.14))
self
.failUnlessEqual(99, getargs_L(Long()))
self
.failUnlessEqual(99, getargs_L(Int()))
self
.assertRaises(OverflowError, getargs_L
, LLONG_MIN
-1)
self
.failUnlessEqual(LLONG_MIN
, getargs_L(LLONG_MIN
))
self
.failUnlessEqual(LLONG_MAX
, getargs_L(LLONG_MAX
))
self
.assertRaises(OverflowError, getargs_L
, LLONG_MAX
+1)
self
.failUnlessEqual(42, getargs_L(42))
self
.failUnlessEqual(42, getargs_L(42L))
self
.assertRaises(OverflowError, getargs_L
, VERY_LARGE
)
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
, Long())
self
.assertRaises(TypeError, getargs_K
, Int())
self
.failUnlessEqual(ULLONG_MAX
, getargs_K(ULLONG_MAX
))
self
.failUnlessEqual(0, getargs_K(0))
self
.failUnlessEqual(0, getargs_K(ULLONG_MAX
+1))
self
.failUnlessEqual(42, getargs_K(42))
self
.failUnlessEqual(42, getargs_K(42L))
self
.failUnlessEqual(VERY_LARGE
& ULLONG_MAX
, getargs_K(VERY_LARGE
))
tests
= [Signed_TestCase
, Unsigned_TestCase
]
from _testcapi
import getargs_L
, getargs_K
pass # PY_LONG_LONG not available
tests
.append(LongLong_TestCase
)
test_support
.run_unittest(*tests
)
if __name__
== "__main__":