1 import unittest

     2 from test import test_support

     3 import sys

     4 

     5 import warnings, re

     6 warnings.filterwarnings("ignore",

     7                         category=DeprecationWarning,

     8                         message=".*integer argument expected, got float",

     9                         module=__name__)

    10 warnings.filterwarnings("ignore",

    11                         category=DeprecationWarning,

    12                         message=".*integer argument expected, got float",

    13                         module="unittest")

    14 

    15 """

    16 > How about the following counterproposal. This also changes some of

    17 > the other format codes to be a little more regular.

    18 >

    19 > Code C type Range check

    20 >

    21 > b unsigned char 0..UCHAR_MAX

    22 > h signed short SHRT_MIN..SHRT_MAX

    23 > B unsigned char none **

    24 > H unsigned short none **

    25 > k * unsigned long none

    26 > I * unsigned int 0..UINT_MAX

    27 

    28 

    29 > i int INT_MIN..INT_MAX

    30 > l long LONG_MIN..LONG_MAX

    31 

    32 > K * unsigned long long none

    33 > L long long LLONG_MIN..LLONG_MAX

    34 

    35 > Notes:

    36 >

    37 > * New format codes.

    38 >

    39 > ** Changed from previous "range-and-a-half" to "none"; the

    40 > range-and-a-half checking wasn't particularly useful.

    41 

    42 Plus a C API or two, e.g. PyInt_AsLongMask() ->

    43 unsigned long and PyInt_AsLongLongMask() -> unsigned

    44 long long (if that exists).

    45 """

    46 

    47 LARGE = 0x7FFFFFFF

    48 VERY_LARGE = 0xFF0000121212121212121242L

    49 

    50 from _testcapi import UCHAR_MAX, USHRT_MAX, UINT_MAX, ULONG_MAX, INT_MAX, \

    51      INT_MIN, LONG_MIN, LONG_MAX, PY_SSIZE_T_MIN, PY_SSIZE_T_MAX

    52 

    53 # fake, they are not defined in Python's header files

    54 LLONG_MAX = 2**63-1

    55 LLONG_MIN = -2**63

    56 ULLONG_MAX = 2**64-1

    57 

    58 class Long:

    59     def __int__(self):

    60         return 99L

    61 

    62 class Int:

    63     def __int__(self):

    64         return 99

    65 

    66 class Unsigned_TestCase(unittest.TestCase):

    67     def test_b(self):

    68         from _testcapi import getargs_b

    69         # b returns 'unsigned char', and does range checking (0 ... UCHAR_MAX)

    70         self.failUnlessEqual(3, getargs_b(3.14))

    71         self.failUnlessEqual(99, getargs_b(Long()))

    72         self.failUnlessEqual(99, getargs_b(Int()))

    73 

    74         self.assertRaises(OverflowError, getargs_b, -1)

    75         self.failUnlessEqual(0, getargs_b(0))

    76         self.failUnlessEqual(UCHAR_MAX, getargs_b(UCHAR_MAX))

    77         self.assertRaises(OverflowError, getargs_b, UCHAR_MAX + 1)

    78 

    79         self.failUnlessEqual(42, getargs_b(42))

    80         self.failUnlessEqual(42, getargs_b(42L))

    81         self.assertRaises(OverflowError, getargs_b, VERY_LARGE)

    82 

    83     def test_B(self):

    84         from _testcapi import getargs_B

    85         # B returns 'unsigned char', no range checking

    86         self.failUnlessEqual(3, getargs_B(3.14))

    87         self.failUnlessEqual(99, getargs_B(Long()))

    88         self.failUnlessEqual(99, getargs_B(Int()))

    89 

    90         self.failUnlessEqual(UCHAR_MAX, getargs_B(-1))

    91         self.failUnlessEqual(UCHAR_MAX, getargs_B(-1L))

    92         self.failUnlessEqual(0, getargs_B(0))

    93         self.failUnlessEqual(UCHAR_MAX, getargs_B(UCHAR_MAX))

    94         self.failUnlessEqual(0, getargs_B(UCHAR_MAX+1))

    95 

    96         self.failUnlessEqual(42, getargs_B(42))

    97         self.failUnlessEqual(42, getargs_B(42L))

    98         self.failUnlessEqual(UCHAR_MAX & VERY_LARGE, getargs_B(VERY_LARGE))

    99 

   100     def test_H(self):

   101         from _testcapi import getargs_H

   102         # H returns 'unsigned short', no range checking

   103         self.failUnlessEqual(3, getargs_H(3.14))

   104         self.failUnlessEqual(99, getargs_H(Long()))

   105         self.failUnlessEqual(99, getargs_H(Int()))

   106 

   107         self.failUnlessEqual(USHRT_MAX, getargs_H(-1))

   108         self.failUnlessEqual(0, getargs_H(0))

   109         self.failUnlessEqual(USHRT_MAX, getargs_H(USHRT_MAX))

   110         self.failUnlessEqual(0, getargs_H(USHRT_MAX+1))

   111 

   112         self.failUnlessEqual(42, getargs_H(42))

   113         self.failUnlessEqual(42, getargs_H(42L))

   114 

   115         self.failUnlessEqual(VERY_LARGE & USHRT_MAX, getargs_H(VERY_LARGE))

   116 

   117     def test_I(self):

   118         from _testcapi import getargs_I

   119         # I returns 'unsigned int', no range checking

   120         self.failUnlessEqual(3, getargs_I(3.14))

   121         self.failUnlessEqual(99, getargs_I(Long()))

   122         self.failUnlessEqual(99, getargs_I(Int()))

   123 

   124         self.failUnlessEqual(UINT_MAX, getargs_I(-1))

   125         self.failUnlessEqual(0, getargs_I(0))

   126         self.failUnlessEqual(UINT_MAX, getargs_I(UINT_MAX))

   127         self.failUnlessEqual(0, getargs_I(UINT_MAX+1))

   128 

   129         self.failUnlessEqual(42, getargs_I(42))

   130         self.failUnlessEqual(42, getargs_I(42L))

   131 

   132         self.failUnlessEqual(VERY_LARGE & UINT_MAX, getargs_I(VERY_LARGE))

   133 

   134     def test_k(self):

   135         from _testcapi import getargs_k

   136         # k returns 'unsigned long', no range checking

   137         # it does not accept float, or instances with __int__

   138         self.assertRaises(TypeError, getargs_k, 3.14)

   139         self.assertRaises(TypeError, getargs_k, Long())

   140         self.assertRaises(TypeError, getargs_k, Int())

   141 

   142         self.failUnlessEqual(ULONG_MAX, getargs_k(-1))

   143         self.failUnlessEqual(0, getargs_k(0))

   144         self.failUnlessEqual(ULONG_MAX, getargs_k(ULONG_MAX))

   145         self.failUnlessEqual(0, getargs_k(ULONG_MAX+1))

   146 

   147         self.failUnlessEqual(42, getargs_k(42))

   148         self.failUnlessEqual(42, getargs_k(42L))

   149 

   150         self.failUnlessEqual(VERY_LARGE & ULONG_MAX, getargs_k(VERY_LARGE))

   151 

   152 class Signed_TestCase(unittest.TestCase):

   153     def test_i(self):

   154         from _testcapi import getargs_i

   155         # i returns 'int', and does range checking (INT_MIN ... INT_MAX)

   156         self.failUnlessEqual(3, getargs_i(3.14))

   157         self.failUnlessEqual(99, getargs_i(Long()))

   158         self.failUnlessEqual(99, getargs_i(Int()))

   159 

   160         self.assertRaises(OverflowError, getargs_i, INT_MIN-1)

   161         self.failUnlessEqual(INT_MIN, getargs_i(INT_MIN))

   162         self.failUnlessEqual(INT_MAX, getargs_i(INT_MAX))

   163         self.assertRaises(OverflowError, getargs_i, INT_MAX+1)

   164 

   165         self.failUnlessEqual(42, getargs_i(42))

   166         self.failUnlessEqual(42, getargs_i(42L))

   167         self.assertRaises(OverflowError, getargs_i, VERY_LARGE)

   168 

   169     def test_l(self):

   170         from _testcapi import getargs_l

   171         # l returns 'long', and does range checking (LONG_MIN ... LONG_MAX)

   172         self.failUnlessEqual(3, getargs_l(3.14))

   173         self.failUnlessEqual(99, getargs_l(Long()))

   174         self.failUnlessEqual(99, getargs_l(Int()))

   175 

   176         self.assertRaises(OverflowError, getargs_l, LONG_MIN-1)

   177         self.failUnlessEqual(LONG_MIN, getargs_l(LONG_MIN))

   178         self.failUnlessEqual(LONG_MAX, getargs_l(LONG_MAX))

   179         self.assertRaises(OverflowError, getargs_l, LONG_MAX+1)

   180 

   181         self.failUnlessEqual(42, getargs_l(42))

   182         self.failUnlessEqual(42, getargs_l(42L))

   183         self.assertRaises(OverflowError, getargs_l, VERY_LARGE)

   184 

   185     def test_n(self):

   186         from _testcapi import getargs_n

   187         # n returns 'Py_ssize_t', and does range checking

   188         # (PY_SSIZE_T_MIN ... PY_SSIZE_T_MAX)

   189         self.failUnlessEqual(3, getargs_n(3.14))

   190         self.failUnlessEqual(99, getargs_n(Long()))

   191         self.failUnlessEqual(99, getargs_n(Int()))

   192 

   193         self.assertRaises(OverflowError, getargs_n, PY_SSIZE_T_MIN-1)

   194         self.failUnlessEqual(PY_SSIZE_T_MIN, getargs_n(PY_SSIZE_T_MIN))

   195         self.failUnlessEqual(PY_SSIZE_T_MAX, getargs_n(PY_SSIZE_T_MAX))

   196         self.assertRaises(OverflowError, getargs_n, PY_SSIZE_T_MAX+1)

   197 

   198         self.failUnlessEqual(42, getargs_n(42))

   199         self.failUnlessEqual(42, getargs_n(42L))

   200         self.assertRaises(OverflowError, getargs_n, VERY_LARGE)

   201 

   202 

   203 class LongLong_TestCase(unittest.TestCase):

   204     def test_L(self):

   205         from _testcapi import getargs_L

   206         # L returns 'long long', and does range checking (LLONG_MIN ... LLONG_MAX)

   207         self.failUnlessRaises(TypeError, getargs_L, "Hello")

   208         self.failUnlessEqual(3, getargs_L(3.14))

   209         self.failUnlessEqual(99, getargs_L(Long()))

   210         self.failUnlessEqual(99, getargs_L(Int()))

   211 

   212         self.assertRaises(OverflowError, getargs_L, LLONG_MIN-1)

   213         self.failUnlessEqual(LLONG_MIN, getargs_L(LLONG_MIN))

   214         self.failUnlessEqual(LLONG_MAX, getargs_L(LLONG_MAX))

   215         self.assertRaises(OverflowError, getargs_L, LLONG_MAX+1)

   216 

   217         self.failUnlessEqual(42, getargs_L(42))

   218         self.failUnlessEqual(42, getargs_L(42L))

   219         self.assertRaises(OverflowError, getargs_L, VERY_LARGE)

   220 

   221     def test_K(self):

   222         from _testcapi import getargs_K

   223         # K return 'unsigned long long', no range checking

   224         self.assertRaises(TypeError, getargs_K, 3.14)

   225         self.assertRaises(TypeError, getargs_K, Long())

   226         self.assertRaises(TypeError, getargs_K, Int())

   227         self.failUnlessEqual(ULLONG_MAX, getargs_K(ULLONG_MAX))

   228         self.failUnlessEqual(0, getargs_K(0))

   229         self.failUnlessEqual(0, getargs_K(ULLONG_MAX+1))

   230 

   231         self.failUnlessEqual(42, getargs_K(42))

   232         self.failUnlessEqual(42, getargs_K(42L))

   233 

   234         self.failUnlessEqual(VERY_LARGE & ULLONG_MAX, getargs_K(VERY_LARGE))

   235 

   236 

   237 class Tuple_TestCase(unittest.TestCase):

   238     def test_tuple(self):

   239         from _testcapi import getargs_tuple

   240 

   241         ret = getargs_tuple(1, (2, 3))

   242         self.assertEquals(ret, (1,2,3))

   243 

   244         # make sure invalid tuple arguments are handled correctly

   245         class seq:

   246             def __len__(self):

   247                 return 2

   248             def __getitem__(self, n):

   249                 raise ValueError

   250         self.assertRaises(TypeError, getargs_tuple, 1, seq())

   251 

   252 

   253 def test_main():

   254     tests = [Signed_TestCase, Unsigned_TestCase, Tuple_TestCase]

   255     try:

   256         from _testcapi import getargs_L, getargs_K

   257     except ImportError:

   258         pass # PY_LONG_LONG not available

   259     else:

   260         tests.append(LongLong_TestCase)

   261     test_support.run_unittest(*tests)

   262 

   263 if __name__ == "__main__":

   264     test_main()