| import unittest |
| import sys |
| |
| from test.support import import_helper |
| |
| # Skip this test if the _testcapi module isn't available. |
| _testcapi = import_helper.import_module('_testcapi') |
| |
| NULL = None |
| |
| class IntSubclass(int): |
| pass |
| |
| class Index: |
| def __init__(self, value): |
| self.value = value |
| |
| def __index__(self): |
| return self.value |
| |
| # use __index__(), not __int__() |
| class MyIndexAndInt: |
| def __index__(self): |
| return 10 |
| def __int__(self): |
| return 22 |
| |
| |
| class LongTests(unittest.TestCase): |
| |
| def test_compact(self): |
| for n in { |
| # Edge cases |
| *(2**n for n in range(66)), |
| *(-2**n for n in range(66)), |
| *(2**n - 1 for n in range(66)), |
| *(-2**n + 1 for n in range(66)), |
| # Essentially random |
| *(37**n for n in range(14)), |
| *(-37**n for n in range(14)), |
| }: |
| with self.subTest(n=n): |
| is_compact, value = _testcapi.call_long_compact_api(n) |
| if is_compact: |
| self.assertEqual(n, value) |
| |
| def test_compact_known(self): |
| # Sanity-check some implementation details (we don't guarantee |
| # that these are/aren't compact) |
| self.assertEqual(_testcapi.call_long_compact_api(-1), (True, -1)) |
| self.assertEqual(_testcapi.call_long_compact_api(0), (True, 0)) |
| self.assertEqual(_testcapi.call_long_compact_api(256), (True, 256)) |
| self.assertEqual(_testcapi.call_long_compact_api(sys.maxsize), |
| (False, -1)) |
| |
| def test_long_check(self): |
| # Test PyLong_Check() |
| check = _testcapi.pylong_check |
| self.assertTrue(check(1)) |
| self.assertTrue(check(123456789012345678901234567890)) |
| self.assertTrue(check(-1)) |
| self.assertTrue(check(True)) |
| self.assertTrue(check(IntSubclass(1))) |
| self.assertFalse(check(1.0)) |
| self.assertFalse(check(object())) |
| # CRASHES check(NULL) |
| |
| def test_long_checkexact(self): |
| # Test PyLong_CheckExact() |
| check = _testcapi.pylong_checkexact |
| self.assertTrue(check(1)) |
| self.assertTrue(check(123456789012345678901234567890)) |
| self.assertTrue(check(-1)) |
| self.assertFalse(check(True)) |
| self.assertFalse(check(IntSubclass(1))) |
| self.assertFalse(check(1.0)) |
| self.assertFalse(check(object())) |
| # CRASHES check(NULL) |
| |
| def test_long_fromdouble(self): |
| # Test PyLong_FromDouble() |
| fromdouble = _testcapi.pylong_fromdouble |
| float_max = sys.float_info.max |
| for value in (5.0, 5.1, 5.9, -5.1, -5.9, 0.0, -0.0, float_max, -float_max): |
| with self.subTest(value=value): |
| self.assertEqual(fromdouble(value), int(value)) |
| self.assertRaises(OverflowError, fromdouble, float('inf')) |
| self.assertRaises(OverflowError, fromdouble, float('-inf')) |
| self.assertRaises(ValueError, fromdouble, float('nan')) |
| |
| def test_long_fromvoidptr(self): |
| # Test PyLong_FromVoidPtr() |
| fromvoidptr = _testcapi.pylong_fromvoidptr |
| obj = object() |
| x = fromvoidptr(obj) |
| y = fromvoidptr(NULL) |
| self.assertIsInstance(x, int) |
| self.assertGreaterEqual(x, 0) |
| self.assertIsInstance(y, int) |
| self.assertEqual(y, 0) |
| self.assertNotEqual(x, y) |
| |
| def test_long_fromstring(self): |
| # Test PyLong_FromString() |
| fromstring = _testcapi.pylong_fromstring |
| self.assertEqual(fromstring(b'123', 10), (123, 3)) |
| self.assertEqual(fromstring(b'cafe', 16), (0xcafe, 4)) |
| self.assertEqual(fromstring(b'xyz', 36), (44027, 3)) |
| self.assertEqual(fromstring(b'123', 0), (123, 3)) |
| self.assertEqual(fromstring(b'0xcafe', 0), (0xcafe, 6)) |
| self.assertRaises(ValueError, fromstring, b'cafe', 0) |
| self.assertEqual(fromstring(b'-123', 10), (-123, 4)) |
| self.assertEqual(fromstring(b' -123 ', 10), (-123, 6)) |
| self.assertEqual(fromstring(b'1_23', 10), (123, 4)) |
| self.assertRaises(ValueError, fromstring, b'- 123', 10) |
| self.assertRaises(ValueError, fromstring, b'', 10) |
| |
| self.assertRaises(ValueError, fromstring, b'123', 1) |
| self.assertRaises(ValueError, fromstring, b'123', -1) |
| self.assertRaises(ValueError, fromstring, b'123', 37) |
| |
| self.assertRaises(ValueError, fromstring, '١٢٣٤٥٦٧٨٩٠'.encode(), 0) |
| self.assertRaises(ValueError, fromstring, '١٢٣٤٥٦٧٨٩٠'.encode(), 16) |
| |
| self.assertEqual(fromstring(b'123\x00', 0), (123, 3)) |
| self.assertEqual(fromstring(b'123\x00456', 0), (123, 3)) |
| self.assertEqual(fromstring(b'123\x00', 16), (0x123, 3)) |
| self.assertEqual(fromstring(b'123\x00456', 16), (0x123, 3)) |
| |
| # CRASHES fromstring(NULL, 0) |
| # CRASHES fromstring(NULL, 16) |
| |
| def test_long_fromunicodeobject(self): |
| # Test PyLong_FromUnicodeObject() |
| fromunicodeobject = _testcapi.pylong_fromunicodeobject |
| self.assertEqual(fromunicodeobject('123', 10), 123) |
| self.assertEqual(fromunicodeobject('cafe', 16), 0xcafe) |
| self.assertEqual(fromunicodeobject('xyz', 36), 44027) |
| self.assertEqual(fromunicodeobject('123', 0), 123) |
| self.assertEqual(fromunicodeobject('0xcafe', 0), 0xcafe) |
| self.assertRaises(ValueError, fromunicodeobject, 'cafe', 0) |
| self.assertEqual(fromunicodeobject('-123', 10), -123) |
| self.assertEqual(fromunicodeobject(' -123 ', 10), -123) |
| self.assertEqual(fromunicodeobject('1_23', 10), 123) |
| self.assertRaises(ValueError, fromunicodeobject, '- 123', 10) |
| self.assertRaises(ValueError, fromunicodeobject, '', 10) |
| |
| self.assertRaises(ValueError, fromunicodeobject, '123', 1) |
| self.assertRaises(ValueError, fromunicodeobject, '123', -1) |
| self.assertRaises(ValueError, fromunicodeobject, '123', 37) |
| |
| self.assertEqual(fromunicodeobject('١٢٣٤٥٦٧٨٩٠', 0), 1234567890) |
| self.assertEqual(fromunicodeobject('١٢٣٤٥٦٧٨٩٠', 16), 0x1234567890) |
| |
| self.assertRaises(ValueError, fromunicodeobject, '123\x00', 0) |
| self.assertRaises(ValueError, fromunicodeobject, '123\x00456', 0) |
| self.assertRaises(ValueError, fromunicodeobject, '123\x00', 16) |
| self.assertRaises(ValueError, fromunicodeobject, '123\x00456', 16) |
| |
| # CRASHES fromunicodeobject(NULL, 0) |
| # CRASHES fromunicodeobject(NULL, 16) |
| |
| def test_long_asint(self): |
| # Test PyLong_AsInt() |
| PyLong_AsInt = _testcapi.PyLong_AsInt |
| from _testcapi import INT_MIN, INT_MAX |
| |
| # round trip (object -> int -> object) |
| for value in (INT_MIN, INT_MAX, -1, 0, 1, 123): |
| with self.subTest(value=value): |
| self.assertEqual(PyLong_AsInt(value), value) |
| self.assertEqual(PyLong_AsInt(IntSubclass(42)), 42) |
| self.assertEqual(PyLong_AsInt(Index(42)), 42) |
| self.assertEqual(PyLong_AsInt(MyIndexAndInt()), 10) |
| |
| # bound checking |
| self.assertRaises(OverflowError, PyLong_AsInt, INT_MIN - 1) |
| self.assertRaises(OverflowError, PyLong_AsInt, INT_MAX + 1) |
| |
| # invalid type |
| self.assertRaises(TypeError, PyLong_AsInt, 1.0) |
| self.assertRaises(TypeError, PyLong_AsInt, b'2') |
| self.assertRaises(TypeError, PyLong_AsInt, '3') |
| self.assertRaises(SystemError, PyLong_AsInt, NULL) |
| |
| def test_long_aslong(self): |
| # Test PyLong_AsLong() and PyLong_FromLong() |
| aslong = _testcapi.pylong_aslong |
| from _testcapi import LONG_MIN, LONG_MAX |
| # round trip (object -> long -> object) |
| for value in (LONG_MIN, LONG_MAX, -1, 0, 1, 1234): |
| with self.subTest(value=value): |
| self.assertEqual(aslong(value), value) |
| |
| self.assertEqual(aslong(IntSubclass(42)), 42) |
| self.assertEqual(aslong(Index(42)), 42) |
| self.assertEqual(aslong(MyIndexAndInt()), 10) |
| |
| self.assertRaises(OverflowError, aslong, LONG_MIN - 1) |
| self.assertRaises(OverflowError, aslong, LONG_MAX + 1) |
| self.assertRaises(TypeError, aslong, 1.0) |
| self.assertRaises(TypeError, aslong, b'2') |
| self.assertRaises(TypeError, aslong, '3') |
| self.assertRaises(SystemError, aslong, NULL) |
| |
| def test_long_aslongandoverflow(self): |
| # Test PyLong_AsLongAndOverflow() |
| aslongandoverflow = _testcapi.pylong_aslongandoverflow |
| from _testcapi import LONG_MIN, LONG_MAX |
| # round trip (object -> long -> object) |
| for value in (LONG_MIN, LONG_MAX, -1, 0, 1, 1234): |
| with self.subTest(value=value): |
| self.assertEqual(aslongandoverflow(value), (value, 0)) |
| |
| self.assertEqual(aslongandoverflow(IntSubclass(42)), (42, 0)) |
| self.assertEqual(aslongandoverflow(Index(42)), (42, 0)) |
| self.assertEqual(aslongandoverflow(MyIndexAndInt()), (10, 0)) |
| |
| self.assertEqual(aslongandoverflow(LONG_MIN - 1), (-1, -1)) |
| self.assertEqual(aslongandoverflow(LONG_MAX + 1), (-1, 1)) |
| # CRASHES aslongandoverflow(1.0) |
| # CRASHES aslongandoverflow(NULL) |
| |
| def test_long_asunsignedlong(self): |
| # Test PyLong_AsUnsignedLong() and PyLong_FromUnsignedLong() |
| asunsignedlong = _testcapi.pylong_asunsignedlong |
| from _testcapi import ULONG_MAX |
| # round trip (object -> unsigned long -> object) |
| for value in (ULONG_MAX, 0, 1, 1234): |
| with self.subTest(value=value): |
| self.assertEqual(asunsignedlong(value), value) |
| |
| self.assertEqual(asunsignedlong(IntSubclass(42)), 42) |
| self.assertRaises(TypeError, asunsignedlong, Index(42)) |
| self.assertRaises(TypeError, asunsignedlong, MyIndexAndInt()) |
| |
| self.assertRaises(OverflowError, asunsignedlong, -1) |
| self.assertRaises(OverflowError, asunsignedlong, ULONG_MAX + 1) |
| self.assertRaises(TypeError, asunsignedlong, 1.0) |
| self.assertRaises(TypeError, asunsignedlong, b'2') |
| self.assertRaises(TypeError, asunsignedlong, '3') |
| self.assertRaises(SystemError, asunsignedlong, NULL) |
| |
| def test_long_asunsignedlongmask(self): |
| # Test PyLong_AsUnsignedLongMask() |
| asunsignedlongmask = _testcapi.pylong_asunsignedlongmask |
| from _testcapi import ULONG_MAX |
| # round trip (object -> unsigned long -> object) |
| for value in (ULONG_MAX, 0, 1, 1234): |
| with self.subTest(value=value): |
| self.assertEqual(asunsignedlongmask(value), value) |
| |
| self.assertEqual(asunsignedlongmask(IntSubclass(42)), 42) |
| self.assertEqual(asunsignedlongmask(Index(42)), 42) |
| self.assertEqual(asunsignedlongmask(MyIndexAndInt()), 10) |
| |
| self.assertEqual(asunsignedlongmask(-1), ULONG_MAX) |
| self.assertEqual(asunsignedlongmask(ULONG_MAX + 1), 0) |
| self.assertRaises(TypeError, asunsignedlongmask, 1.0) |
| self.assertRaises(TypeError, asunsignedlongmask, b'2') |
| self.assertRaises(TypeError, asunsignedlongmask, '3') |
| self.assertRaises(SystemError, asunsignedlongmask, NULL) |
| |
| def test_long_aslonglong(self): |
| # Test PyLong_AsLongLong() and PyLong_FromLongLong() |
| aslonglong = _testcapi.pylong_aslonglong |
| from _testcapi import LLONG_MIN, LLONG_MAX |
| # round trip (object -> long long -> object) |
| for value in (LLONG_MIN, LLONG_MAX, -1, 0, 1, 1234): |
| with self.subTest(value=value): |
| self.assertEqual(aslonglong(value), value) |
| |
| self.assertEqual(aslonglong(IntSubclass(42)), 42) |
| self.assertEqual(aslonglong(Index(42)), 42) |
| self.assertEqual(aslonglong(MyIndexAndInt()), 10) |
| |
| self.assertRaises(OverflowError, aslonglong, LLONG_MIN - 1) |
| self.assertRaises(OverflowError, aslonglong, LLONG_MAX + 1) |
| self.assertRaises(TypeError, aslonglong, 1.0) |
| self.assertRaises(TypeError, aslonglong, b'2') |
| self.assertRaises(TypeError, aslonglong, '3') |
| self.assertRaises(SystemError, aslonglong, NULL) |
| |
| def test_long_aslonglongandoverflow(self): |
| # Test PyLong_AsLongLongAndOverflow() |
| aslonglongandoverflow = _testcapi.pylong_aslonglongandoverflow |
| from _testcapi import LLONG_MIN, LLONG_MAX |
| # round trip (object -> long long -> object) |
| for value in (LLONG_MIN, LLONG_MAX, -1, 0, 1, 1234): |
| with self.subTest(value=value): |
| self.assertEqual(aslonglongandoverflow(value), (value, 0)) |
| |
| self.assertEqual(aslonglongandoverflow(IntSubclass(42)), (42, 0)) |
| self.assertEqual(aslonglongandoverflow(Index(42)), (42, 0)) |
| self.assertEqual(aslonglongandoverflow(MyIndexAndInt()), (10, 0)) |
| |
| self.assertEqual(aslonglongandoverflow(LLONG_MIN - 1), (-1, -1)) |
| self.assertEqual(aslonglongandoverflow(LLONG_MAX + 1), (-1, 1)) |
| # CRASHES aslonglongandoverflow(1.0) |
| # CRASHES aslonglongandoverflow(NULL) |
| |
| def test_long_asunsignedlonglong(self): |
| # Test PyLong_AsUnsignedLongLong() and PyLong_FromUnsignedLongLong() |
| asunsignedlonglong = _testcapi.pylong_asunsignedlonglong |
| from _testcapi import ULLONG_MAX |
| # round trip (object -> unsigned long long -> object) |
| for value in (ULLONG_MAX, 0, 1, 1234): |
| with self.subTest(value=value): |
| self.assertEqual(asunsignedlonglong(value), value) |
| |
| self.assertEqual(asunsignedlonglong(IntSubclass(42)), 42) |
| self.assertRaises(TypeError, asunsignedlonglong, Index(42)) |
| self.assertRaises(TypeError, asunsignedlonglong, MyIndexAndInt()) |
| |
| self.assertRaises(OverflowError, asunsignedlonglong, -1) |
| self.assertRaises(OverflowError, asunsignedlonglong, ULLONG_MAX + 1) |
| self.assertRaises(TypeError, asunsignedlonglong, 1.0) |
| self.assertRaises(TypeError, asunsignedlonglong, b'2') |
| self.assertRaises(TypeError, asunsignedlonglong, '3') |
| self.assertRaises(SystemError, asunsignedlonglong, NULL) |
| |
| def test_long_asunsignedlonglongmask(self): |
| # Test PyLong_AsUnsignedLongLongMask() |
| asunsignedlonglongmask = _testcapi.pylong_asunsignedlonglongmask |
| from _testcapi import ULLONG_MAX |
| # round trip (object -> unsigned long long -> object) |
| for value in (ULLONG_MAX, 0, 1, 1234): |
| with self.subTest(value=value): |
| self.assertEqual(asunsignedlonglongmask(value), value) |
| |
| self.assertEqual(asunsignedlonglongmask(IntSubclass(42)), 42) |
| self.assertEqual(asunsignedlonglongmask(Index(42)), 42) |
| self.assertEqual(asunsignedlonglongmask(MyIndexAndInt()), 10) |
| |
| self.assertEqual(asunsignedlonglongmask(-1), ULLONG_MAX) |
| self.assertEqual(asunsignedlonglongmask(ULLONG_MAX + 1), 0) |
| self.assertRaises(TypeError, asunsignedlonglongmask, 1.0) |
| self.assertRaises(TypeError, asunsignedlonglongmask, b'2') |
| self.assertRaises(TypeError, asunsignedlonglongmask, '3') |
| self.assertRaises(SystemError, asunsignedlonglongmask, NULL) |
| |
| def test_long_as_ssize_t(self): |
| # Test PyLong_AsSsize_t() and PyLong_FromSsize_t() |
| as_ssize_t = _testcapi.pylong_as_ssize_t |
| from _testcapi import PY_SSIZE_T_MIN, PY_SSIZE_T_MAX |
| # round trip (object -> Py_ssize_t -> object) |
| for value in (PY_SSIZE_T_MIN, PY_SSIZE_T_MAX, -1, 0, 1, 1234): |
| with self.subTest(value=value): |
| self.assertEqual(as_ssize_t(value), value) |
| |
| self.assertEqual(as_ssize_t(IntSubclass(42)), 42) |
| self.assertRaises(TypeError, as_ssize_t, Index(42)) |
| self.assertRaises(TypeError, as_ssize_t, MyIndexAndInt()) |
| |
| self.assertRaises(OverflowError, as_ssize_t, PY_SSIZE_T_MIN - 1) |
| self.assertRaises(OverflowError, as_ssize_t, PY_SSIZE_T_MAX + 1) |
| self.assertRaises(TypeError, as_ssize_t, 1.0) |
| self.assertRaises(TypeError, as_ssize_t, b'2') |
| self.assertRaises(TypeError, as_ssize_t, '3') |
| self.assertRaises(SystemError, as_ssize_t, NULL) |
| |
| def test_long_as_size_t(self): |
| # Test PyLong_AsSize_t() and PyLong_FromSize_t() |
| as_size_t = _testcapi.pylong_as_size_t |
| from _testcapi import SIZE_MAX |
| # round trip (object -> size_t -> object) |
| for value in (SIZE_MAX, 0, 1, 1234): |
| with self.subTest(value=value): |
| self.assertEqual(as_size_t(value), value) |
| |
| self.assertEqual(as_size_t(IntSubclass(42)), 42) |
| self.assertRaises(TypeError, as_size_t, Index(42)) |
| self.assertRaises(TypeError, as_size_t, MyIndexAndInt()) |
| |
| self.assertRaises(OverflowError, as_size_t, -1) |
| self.assertRaises(OverflowError, as_size_t, SIZE_MAX + 1) |
| self.assertRaises(TypeError, as_size_t, 1.0) |
| self.assertRaises(TypeError, as_size_t, b'2') |
| self.assertRaises(TypeError, as_size_t, '3') |
| self.assertRaises(SystemError, as_size_t, NULL) |
| |
| def test_long_asdouble(self): |
| # Test PyLong_AsDouble() |
| asdouble = _testcapi.pylong_asdouble |
| MAX = int(sys.float_info.max) |
| for value in (-MAX, MAX, -1, 0, 1, 1234): |
| with self.subTest(value=value): |
| self.assertEqual(asdouble(value), float(value)) |
| self.assertIsInstance(asdouble(value), float) |
| |
| self.assertEqual(asdouble(IntSubclass(42)), 42.0) |
| self.assertRaises(TypeError, asdouble, Index(42)) |
| self.assertRaises(TypeError, asdouble, MyIndexAndInt()) |
| |
| self.assertRaises(OverflowError, asdouble, 2 * MAX) |
| self.assertRaises(OverflowError, asdouble, -2 * MAX) |
| self.assertRaises(TypeError, asdouble, 1.0) |
| self.assertRaises(TypeError, asdouble, b'2') |
| self.assertRaises(TypeError, asdouble, '3') |
| self.assertRaises(SystemError, asdouble, NULL) |
| |
| def test_long_asvoidptr(self): |
| # Test PyLong_AsVoidPtr() |
| fromvoidptr = _testcapi.pylong_fromvoidptr |
| asvoidptr = _testcapi.pylong_asvoidptr |
| obj = object() |
| x = fromvoidptr(obj) |
| y = fromvoidptr(NULL) |
| self.assertIs(asvoidptr(x), obj) |
| self.assertIs(asvoidptr(y), NULL) |
| self.assertIs(asvoidptr(IntSubclass(x)), obj) |
| |
| # negative values |
| M = (1 << _testcapi.SIZEOF_VOID_P * 8) |
| if x >= M//2: |
| self.assertIs(asvoidptr(x - M), obj) |
| if y >= M//2: |
| self.assertIs(asvoidptr(y - M), NULL) |
| |
| self.assertRaises(TypeError, asvoidptr, Index(x)) |
| self.assertRaises(TypeError, asvoidptr, object()) |
| self.assertRaises(OverflowError, asvoidptr, 2**1000) |
| self.assertRaises(OverflowError, asvoidptr, -2**1000) |
| # CRASHES asvoidptr(NULL) |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |
