| import unittest |
| from test import test_support |
| import sys |
| |
| import warnings, re |
| warnings.filterwarnings("ignore", category=DeprecationWarning, module=__name__) |
| |
| """ |
| > 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 |
| |
| from _testcapi import getargs_ul as ul_convert |
| from _testcapi import getargs_l as l_convert |
| try: |
| from _testcapi import getargs_ll as ll_convert |
| from _testcapi import getargs_ull as ull_convert |
| except ImportError: |
| pass |
| |
| # 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): |
| # b returns 'unsigned char', and does range checking (0 ... UCHAR_MAX) |
| self.failUnlessEqual(3, ul_convert("b", 3.14)) |
| self.failUnlessEqual(99, ul_convert("b", Long())) |
| self.failUnlessEqual(99, ul_convert("b", Int())) |
| |
| self.assertRaises(OverflowError, ul_convert, "b", -1) |
| self.failUnlessEqual(0, ul_convert("b", 0)) |
| self.failUnlessEqual(UCHAR_MAX, ul_convert("b", UCHAR_MAX)) |
| self.assertRaises(OverflowError, ul_convert, "b", UCHAR_MAX + 1) |
| |
| self.failUnlessEqual(42, ul_convert("b", 42)) |
| self.failUnlessEqual(42, ul_convert("b", 42L)) |
| self.assertRaises(OverflowError, ul_convert, "b", VERY_LARGE) |
| |
| def test_B(self): |
| # B returns 'unsigned char', no range checking |
| self.failUnless(3 == ul_convert("B", 3.14)) |
| self.failUnlessEqual(99, ul_convert("B", Long())) |
| self.failUnlessEqual(99, ul_convert("B", Int())) |
| |
| self.failUnlessEqual(UCHAR_MAX, ul_convert("B", -1)) |
| self.failUnlessEqual(UCHAR_MAX, ul_convert("B", -1L)) |
| self.failUnlessEqual(0, ul_convert("B", 0)) |
| self.failUnlessEqual(UCHAR_MAX, ul_convert("B", UCHAR_MAX)) |
| self.failUnlessEqual(0, ul_convert("B", UCHAR_MAX+1)) |
| |
| self.failUnlessEqual(42, ul_convert("B", 42)) |
| self.failUnlessEqual(42, ul_convert("B", 42L)) |
| self.failUnlessEqual(UCHAR_MAX & VERY_LARGE, ul_convert("B", VERY_LARGE)) |
| |
| def test_H(self): |
| # H returns 'unsigned short', no range checking |
| self.failUnlessEqual(3, ul_convert("H", 3.14)) |
| self.failUnlessEqual(99, ul_convert("H", Long())) |
| self.failUnlessEqual(99, ul_convert("H", Int())) |
| |
| self.failUnlessEqual(USHRT_MAX, ul_convert("H", -1)) |
| self.failUnlessEqual(0, ul_convert("H", 0)) |
| self.failUnlessEqual(USHRT_MAX, ul_convert("H", USHRT_MAX)) |
| self.failUnlessEqual(0, ul_convert("H", USHRT_MAX+1)) |
| |
| self.failUnlessEqual(42, ul_convert("H", 42)) |
| self.failUnlessEqual(42, ul_convert("H", 42L)) |
| |
| self.failUnlessEqual(VERY_LARGE & USHRT_MAX, ul_convert("H", VERY_LARGE)) |
| |
| def test_I(self): |
| # I returns 'unsigned int', no range checking |
| self.failUnlessEqual(3, ul_convert("I", 3.14)) |
| self.failUnlessEqual(99, ul_convert("I", Long())) |
| self.failUnlessEqual(99, ul_convert("I", Int())) |
| |
| self.failUnlessEqual(UINT_MAX, ul_convert("I", -1)) |
| self.failUnlessEqual(0, ul_convert("I", 0)) |
| self.failUnlessEqual(UINT_MAX, ul_convert("I", UINT_MAX)) |
| self.failUnlessEqual(0, ul_convert("I", UINT_MAX+1)) |
| |
| self.failUnlessEqual(42, ul_convert("I", 42)) |
| self.failUnlessEqual(42, ul_convert("I", 42L)) |
| |
| self.failUnlessEqual(VERY_LARGE & UINT_MAX, ul_convert("I", VERY_LARGE)) |
| |
| def test_k(self): |
| # k returns 'unsigned long', no range checking |
| # it does not accept float, or instances with __int__ |
| self.assertRaises(TypeError, ul_convert, "k", 3.14) |
| self.assertRaises(TypeError, ul_convert, "k", Long()) |
| self.assertRaises(TypeError, ul_convert, "k", Int()) |
| |
| self.failUnlessEqual(ULONG_MAX, ul_convert("k", -1)) |
| self.failUnlessEqual(0, ul_convert("k", 0)) |
| self.failUnlessEqual(ULONG_MAX, ul_convert("k", ULONG_MAX)) |
| self.failUnlessEqual(0, ul_convert("k", ULONG_MAX+1)) |
| |
| self.failUnlessEqual(42, ul_convert("k", 42)) |
| self.failUnlessEqual(42, ul_convert("k", 42L)) |
| |
| self.failUnlessEqual(VERY_LARGE & ULONG_MAX, ul_convert("k", VERY_LARGE)) |
| |
| class Signed_TestCase(unittest.TestCase): |
| def test_i(self): |
| # i returns 'int', and does range checking (INT_MIN ... INT_MAX) |
| self.failUnlessEqual(3, l_convert("i", 3.14)) |
| self.failUnlessEqual(99, l_convert("i", Long())) |
| self.failUnlessEqual(99, l_convert("i", Int())) |
| |
| self.assertRaises(OverflowError, l_convert, "i", INT_MIN-1) |
| self.failUnlessEqual(INT_MIN, l_convert("i", INT_MIN)) |
| self.failUnlessEqual(INT_MAX, l_convert("i", INT_MAX)) |
| self.assertRaises(OverflowError, l_convert, "i", INT_MAX+1) |
| |
| self.failUnlessEqual(42, l_convert("i", 42)) |
| self.failUnlessEqual(42, l_convert("i", 42L)) |
| self.assertRaises(OverflowError, l_convert, "i", VERY_LARGE) |
| |
| def test_l(self): |
| # l returns 'long', and does range checking (LONG_MIN ... LONG_MAX) |
| self.failUnlessEqual(3, l_convert("l", 3.14)) |
| self.failUnlessEqual(99, l_convert("l", Long())) |
| self.failUnlessEqual(99, l_convert("l", Int())) |
| |
| self.assertRaises(OverflowError, l_convert, "l", LONG_MIN-1) |
| self.failUnlessEqual(LONG_MIN, l_convert("l", LONG_MIN)) |
| self.failUnlessEqual(LONG_MAX, l_convert("l", LONG_MAX)) |
| self.assertRaises(OverflowError, l_convert, "l", LONG_MAX+1) |
| |
| self.failUnlessEqual(42, l_convert("l", 42)) |
| self.failUnlessEqual(42, l_convert("l", 42L)) |
| self.assertRaises(OverflowError, l_convert, "l", VERY_LARGE) |
| |
| |
| class LongLong_TestCase(unittest.TestCase): |
| def test_L(self): |
| # L returns 'long long', and does range checking (LLONG_MIN ... LLONG_MAX) |
| |
| # XXX There's a bug in getargs.c, format code "L": |
| # If you pass something else than a Python long, you |
| # get "Bad argument to internal function". |
| |
| # So these three tests are commented out: |
| |
| ## self.failUnlessEqual(3, ll_convert("L", 3.14)) |
| ## self.failUnlessEqual(99, ll_convert("L", Long())) |
| ## self.failUnlessEqual(99, ll_convert("L", Int())) |
| |
| self.assertRaises(OverflowError, ll_convert, "L", LLONG_MIN-1) |
| self.failUnlessEqual(LLONG_MIN, ll_convert("L", LLONG_MIN)) |
| self.failUnlessEqual(LLONG_MAX, ll_convert("L", LLONG_MAX)) |
| self.assertRaises(OverflowError, ll_convert, "L", LLONG_MAX+1) |
| |
| self.failUnlessEqual(42, ll_convert("L", 42)) |
| self.failUnlessEqual(42, ll_convert("L", 42L)) |
| self.assertRaises(OverflowError, ll_convert, "L", VERY_LARGE) |
| |
| def test_K(self): |
| # K return 'unsigned long long', no range checking |
| self.assertRaises(TypeError, ull_convert, "K", 3.14) |
| self.assertRaises(TypeError, ull_convert, "K", Long()) |
| self.assertRaises(TypeError, ull_convert, "K", Int()) |
| self.failUnlessEqual(ULLONG_MAX, ull_convert("K", ULLONG_MAX)) |
| self.failUnlessEqual(0, ull_convert("K", 0)) |
| self.failUnlessEqual(0, ull_convert("K", ULLONG_MAX+1)) |
| |
| self.failUnlessEqual(42, ull_convert("K", 42)) |
| self.failUnlessEqual(42, ull_convert("K", 42L)) |
| |
| self.failUnlessEqual(VERY_LARGE & ULLONG_MAX, ull_convert("K", VERY_LARGE)) |
| |
| def test_main(): |
| suite = unittest.TestSuite() |
| suite.addTest(unittest.makeSuite(Signed_TestCase)) |
| suite.addTest(unittest.makeSuite(Unsigned_TestCase)) |
| try: |
| ll_convert |
| except NameError: |
| pass # PY_LONG_LONG not available |
| else: |
| suite.addTest(unittest.makeSuite(LongLong_TestCase)) |
| test_support.run_suite(suite) |
| |
| if __name__ == "__main__": |
| test_main() |