import unittest from test import test_support # Skip this test if the _testcapi module isn't available. test_support.import_module('_testcapi') from _testcapi import getargs_keywords import warnings """ > 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. PyInt_AsLongMask() -> unsigned long and PyInt_AsLongLongMask() -> unsigned long long (if that exists). """ LARGE = 0x7FFFFFFF VERY_LARGE = 0xFF0000121212121212121242L 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 try: from _testcapi import getargs_L, getargs_K except ImportError: _PY_LONG_LONG_available = False else: _PY_LONG_LONG_available = True # 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 Long: def __int__(self): return 99L class Int: def __int__(self): return 99 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(Long())) self.assertEqual(99, getargs_b(Int())) 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.assertEqual(42, getargs_b(42L)) 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(Long())) self.assertEqual(99, getargs_B(Int())) self.assertEqual(UCHAR_MAX, getargs_B(-1)) self.assertEqual(UCHAR_MAX, getargs_B(-1L)) 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(42, getargs_B(42L)) 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(Long())) self.assertEqual(99, getargs_H(Int())) 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(42, getargs_H(42L)) 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(Long())) self.assertEqual(99, getargs_I(Int())) 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(42, getargs_I(42L)) 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, Long()) self.assertRaises(TypeError, getargs_k, Int()) 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(42, getargs_k(42L)) 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(Long())) self.assertEqual(99, getargs_h(Int())) 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.assertEqual(42, getargs_h(42L)) 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(Long())) self.assertEqual(99, getargs_i(Int())) 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.assertEqual(42, getargs_i(42L)) 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(Long())) self.assertEqual(99, getargs_l(Int())) 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.assertEqual(42, getargs_l(42L)) 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(Long())) self.assertEqual(99, getargs_n(Int())) 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.assertEqual(42, getargs_n(42L)) self.assertRaises(OverflowError, getargs_n, VERY_LARGE) @unittest.skipUnless(_PY_LONG_LONG_available, 'PY_LONG_LONG not available') 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) with warnings.catch_warnings(): warnings.filterwarnings( "ignore", category=DeprecationWarning, message=".*integer argument expected, got float", module=__name__) self.assertEqual(3, getargs_L(3.14)) with warnings.catch_warnings(): warnings.filterwarnings( "error", category=DeprecationWarning, message=".*integer argument expected, got float", module="unittest") self.assertRaises(DeprecationWarning, getargs_L, 3.14) self.assertRaises(TypeError, getargs_L, "Hello") self.assertEqual(99, getargs_L(Long())) self.assertEqual(99, getargs_L(Int())) 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.assertEqual(42, getargs_L(42L)) 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, Long()) self.assertRaises(TypeError, getargs_K, Int()) 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(42, getargs_K(42L)) self.assertEqual(VERY_LARGE & ULLONG_MAX, getargs_K(VERY_LARGE)) class Tuple_TestCase(unittest.TestCase): 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_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, err: self.assertEqual(str(err), "Required argument 'arg2' (pos 2) not found") 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, 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, err: self.assertEqual(str(err), "'arg666' is an invalid keyword argument for this function") else: self.fail('TypeError should have been raised') def test_main(): tests = [Signed_TestCase, Unsigned_TestCase, LongLong_TestCase, Tuple_TestCase, Keywords_TestCase] test_support.run_unittest(*tests) if __name__ == "__main__": test_main()