| import itertools |
| import operator |
| import unittest |
| import warnings |
| |
| from test.support import import_helper |
| |
| _testcapi = import_helper.import_module('_testcapi') |
| from _testcapi import PY_SSIZE_T_MAX, PY_SSIZE_T_MIN |
| |
| try: |
| from _testbuffer import ndarray |
| except ImportError: |
| ndarray = None |
| |
| NULL = None |
| |
| class BadDescr: |
| def __get__(self, obj, objtype=None): |
| raise RuntimeError |
| |
| class WithDunder: |
| def _meth(self, *args): |
| if self.val: |
| return self.val |
| if self.exc: |
| raise self.exc |
| @classmethod |
| def with_val(cls, val): |
| obj = super().__new__(cls) |
| obj.val = val |
| obj.exc = None |
| setattr(cls, cls.methname, cls._meth) |
| return obj |
| |
| @classmethod |
| def with_exc(cls, exc): |
| obj = super().__new__(cls) |
| obj.val = None |
| obj.exc = exc |
| setattr(cls, cls.methname, cls._meth) |
| return obj |
| |
| class HasBadAttr: |
| def __new__(cls): |
| obj = super().__new__(cls) |
| setattr(cls, cls.methname, BadDescr()) |
| return obj |
| |
| |
| class IndexLike(WithDunder): |
| methname = '__index__' |
| |
| class IntLike(WithDunder): |
| methname = '__int__' |
| |
| class FloatLike(WithDunder): |
| methname = '__float__' |
| |
| |
| def subclassof(base): |
| return type(base.__name__ + 'Subclass', (base,), {}) |
| |
| |
| class SomeError(Exception): |
| pass |
| |
| class OtherError(Exception): |
| pass |
| |
| |
| class CAPITest(unittest.TestCase): |
| def test_check(self): |
| # Test PyNumber_Check() |
| check = _testcapi.number_check |
| |
| self.assertTrue(check(1)) |
| self.assertTrue(check(IndexLike.with_val(1))) |
| self.assertTrue(check(IntLike.with_val(99))) |
| self.assertTrue(check(0.5)) |
| self.assertTrue(check(FloatLike.with_val(4.25))) |
| self.assertTrue(check(1+2j)) |
| |
| self.assertFalse(check([])) |
| self.assertFalse(check("abc")) |
| self.assertFalse(check(object())) |
| self.assertFalse(check(NULL)) |
| |
| def test_unary_ops(self): |
| methmap = {'__neg__': _testcapi.number_negative, # PyNumber_Negative() |
| '__pos__': _testcapi.number_positive, # PyNumber_Positive() |
| '__abs__': _testcapi.number_absolute, # PyNumber_Absolute() |
| '__invert__': _testcapi.number_invert} # PyNumber_Invert() |
| |
| for name, func in methmap.items(): |
| # Generic object, has no tp_as_number structure |
| self.assertRaises(TypeError, func, object()) |
| |
| # C-API function accepts NULL |
| self.assertRaises(SystemError, func, NULL) |
| |
| # Behave as corresponding unary operation |
| op = getattr(operator, name) |
| for x in [0, 42, -1, 3.14, 1+2j]: |
| try: |
| op(x) |
| except TypeError: |
| self.assertRaises(TypeError, func, x) |
| else: |
| self.assertEqual(func(x), op(x)) |
| |
| def test_binary_ops(self): |
| methmap = {'__add__': _testcapi.number_add, # PyNumber_Add() |
| '__sub__': _testcapi.number_subtract, # PyNumber_Subtract() |
| '__mul__': _testcapi.number_multiply, # PyNumber_Multiply() |
| '__matmul__': _testcapi.number_matrixmultiply, # PyNumber_MatrixMultiply() |
| '__floordiv__': _testcapi.number_floordivide, # PyNumber_FloorDivide() |
| '__truediv__': _testcapi.number_truedivide, # PyNumber_TrueDivide() |
| '__mod__': _testcapi.number_remainder, # PyNumber_Remainder() |
| '__divmod__': _testcapi.number_divmod, # PyNumber_Divmod() |
| '__lshift__': _testcapi.number_lshift, # PyNumber_Lshift() |
| '__rshift__': _testcapi.number_rshift, # PyNumber_Rshift() |
| '__and__': _testcapi.number_and, # PyNumber_And() |
| '__xor__': _testcapi.number_xor, # PyNumber_Xor() |
| '__or__': _testcapi.number_or, # PyNumber_Or() |
| '__pow__': _testcapi.number_power, # PyNumber_Power() |
| '__iadd__': _testcapi.number_inplaceadd, # PyNumber_InPlaceAdd() |
| '__isub__': _testcapi.number_inplacesubtract, # PyNumber_InPlaceSubtract() |
| '__imul__': _testcapi.number_inplacemultiply, # PyNumber_InPlaceMultiply() |
| '__imatmul__': _testcapi.number_inplacematrixmultiply, # PyNumber_InPlaceMatrixMultiply() |
| '__ifloordiv__': _testcapi.number_inplacefloordivide, # PyNumber_InPlaceFloorDivide() |
| '__itruediv__': _testcapi.number_inplacetruedivide, # PyNumber_InPlaceTrueDivide() |
| '__imod__': _testcapi.number_inplaceremainder, # PyNumber_InPlaceRemainder() |
| '__ilshift__': _testcapi.number_inplacelshift, # PyNumber_InPlaceLshift() |
| '__irshift__': _testcapi.number_inplacershift, # PyNumber_InPlaceRshift() |
| '__iand__': _testcapi.number_inplaceand, # PyNumber_InPlaceAnd() |
| '__ixor__': _testcapi.number_inplacexor, # PyNumber_InPlaceXor() |
| '__ior__': _testcapi.number_inplaceor, # PyNumber_InPlaceOr() |
| '__ipow__': _testcapi.number_inplacepower, # PyNumber_InPlacePower() |
| } |
| |
| for name, func in methmap.items(): |
| cases = [0, 42, 3.14, -1, 123, 1+2j] |
| |
| # Generic object, has no tp_as_number structure |
| for x in cases: |
| self.assertRaises(TypeError, func, object(), x) |
| self.assertRaises(TypeError, func, x, object()) |
| |
| # Behave as corresponding binary operation |
| op = getattr(operator, name, divmod) |
| for x, y in itertools.combinations(cases, 2): |
| try: |
| op(x, y) |
| except (TypeError, ValueError, ZeroDivisionError) as exc: |
| self.assertRaises(exc.__class__, func, x, y) |
| else: |
| self.assertEqual(func(x, y), op(x, y)) |
| |
| # CRASHES func(NULL, object()) |
| # CRASHES func(object(), NULL) |
| |
| @unittest.skipIf(ndarray is None, "needs _testbuffer") |
| def test_misc_add(self): |
| # PyNumber_Add(), PyNumber_InPlaceAdd() |
| add = _testcapi.number_add |
| inplaceadd = _testcapi.number_inplaceadd |
| |
| # test sq_concat/sq_inplace_concat slots |
| a, b, r = [1, 2], [3, 4], [1, 2, 3, 4] |
| self.assertEqual(add(a, b), r) |
| self.assertEqual(a, [1, 2]) |
| self.assertRaises(TypeError, add, ndarray([1], (1,)), 2) |
| a, b, r = [1, 2], [3, 4], [1, 2, 3, 4] |
| self.assertEqual(inplaceadd(a, b), r) |
| self.assertEqual(a, r) |
| self.assertRaises(TypeError, inplaceadd, ndarray([1], (1,)), 2) |
| |
| @unittest.skipIf(ndarray is None, "needs _testbuffer") |
| def test_misc_multiply(self): |
| # PyNumber_Multiply(), PyNumber_InPlaceMultiply() |
| multiply = _testcapi.number_multiply |
| inplacemultiply = _testcapi.number_inplacemultiply |
| |
| # test sq_repeat/sq_inplace_repeat slots |
| a, b, r = [1], 2, [1, 1] |
| self.assertEqual(multiply(a, b), r) |
| self.assertEqual((a, b), ([1], 2)) |
| self.assertEqual(multiply(b, a), r) |
| self.assertEqual((a, b), ([1], 2)) |
| self.assertEqual(multiply([1], -1), []) |
| self.assertRaises(TypeError, multiply, ndarray([1], (1,)), 2) |
| self.assertRaises(TypeError, multiply, [1], 0.5) |
| self.assertRaises(OverflowError, multiply, [1], PY_SSIZE_T_MAX + 1) |
| self.assertRaises(MemoryError, multiply, [1, 2], PY_SSIZE_T_MAX//2 + 1) |
| a, b, r = [1], 2, [1, 1] |
| self.assertEqual(inplacemultiply(a, b), r) |
| self.assertEqual((a, b), (r, 2)) |
| a = [1] |
| self.assertEqual(inplacemultiply(b, a), r) |
| self.assertEqual((a, b), ([1], 2)) |
| self.assertRaises(TypeError, inplacemultiply, ndarray([1], (1,)), 2) |
| self.assertRaises(OverflowError, inplacemultiply, [1], PY_SSIZE_T_MAX + 1) |
| self.assertRaises(MemoryError, inplacemultiply, [1, 2], PY_SSIZE_T_MAX//2 + 1) |
| |
| def test_misc_power(self): |
| # PyNumber_Power(), PyNumber_InPlacePower() |
| power = _testcapi.number_power |
| inplacepower = _testcapi.number_inplacepower |
| |
| class HasPow(WithDunder): |
| methname = '__pow__' |
| |
| # ternary op |
| self.assertEqual(power(4, 11, 5), pow(4, 11, 5)) |
| self.assertRaises(TypeError, power, 4, 11, 1.25) |
| self.assertRaises(TypeError, power, 4, 11, HasPow.with_val(NotImplemented)) |
| self.assertRaises(TypeError, power, 4, 11, object()) |
| self.assertEqual(inplacepower(4, 11, 5), pow(4, 11, 5)) |
| self.assertRaises(TypeError, inplacepower, 4, 11, 1.25) |
| self.assertRaises(TypeError, inplacepower, 4, 11, object()) |
| |
| class X: |
| def __pow__(*args): |
| return args |
| |
| x = X() |
| self.assertEqual(power(x, 11), (x, 11)) |
| self.assertEqual(inplacepower(x, 11), (x, 11)) |
| self.assertEqual(power(x, 11, 5), (x, 11, 5)) |
| self.assertEqual(inplacepower(x, 11, 5), (x, 11, 5)) |
| |
| class X: |
| def __rpow__(*args): |
| return args |
| |
| x = X() |
| self.assertEqual(power(4, x), (x, 4)) |
| self.assertEqual(inplacepower(4, x), (x, 4)) |
| self.assertEqual(power(4, x, 5), (x, 4, 5)) |
| self.assertEqual(inplacepower(4, x, 5), (x, 4, 5)) |
| |
| class X: |
| def __ipow__(*args): |
| return args |
| |
| x = X() |
| self.assertEqual(inplacepower(x, 11), (x, 11)) |
| # XXX: In-place power doesn't pass the third arg to __ipow__. |
| self.assertEqual(inplacepower(x, 11, 5), (x, 11)) |
| |
| def test_long(self): |
| # Test PyNumber_Long() |
| long = _testcapi.number_long |
| |
| self.assertEqual(long(42), 42) |
| self.assertEqual(long(1.25), 1) |
| self.assertEqual(long("42"), 42) |
| self.assertEqual(long(b"42"), 42) |
| self.assertEqual(long(bytearray(b"42")), 42) |
| self.assertEqual(long(memoryview(b"42")), 42) |
| self.assertEqual(long(IndexLike.with_val(99)), 99) |
| self.assertEqual(long(IntLike.with_val(99)), 99) |
| |
| self.assertRaises(TypeError, long, IntLike.with_val(1.0)) |
| with warnings.catch_warnings(): |
| warnings.simplefilter("error", DeprecationWarning) |
| self.assertRaises(DeprecationWarning, long, IntLike.with_val(True)) |
| with self.assertWarns(DeprecationWarning): |
| self.assertEqual(long(IntLike.with_val(True)), 1) |
| self.assertRaises(RuntimeError, long, IntLike.with_exc(RuntimeError)) |
| |
| self.assertRaises(TypeError, long, 1j) |
| self.assertRaises(TypeError, long, object()) |
| self.assertRaises(SystemError, long, NULL) |
| |
| def test_float(self): |
| # Test PyNumber_Float() |
| float_ = _testcapi.number_float |
| |
| self.assertEqual(float_(1.25), 1.25) |
| self.assertEqual(float_(123), 123.) |
| self.assertEqual(float_("1.25"), 1.25) |
| |
| self.assertEqual(float_(FloatLike.with_val(4.25)), 4.25) |
| self.assertEqual(float_(IndexLike.with_val(99)), 99.0) |
| self.assertEqual(float_(IndexLike.with_val(-1)), -1.0) |
| |
| self.assertRaises(TypeError, float_, FloatLike.with_val(687)) |
| with warnings.catch_warnings(): |
| warnings.simplefilter("error", DeprecationWarning) |
| self.assertRaises(DeprecationWarning, float_, FloatLike.with_val(subclassof(float)(4.25))) |
| with self.assertWarns(DeprecationWarning): |
| self.assertEqual(float_(FloatLike.with_val(subclassof(float)(4.25))), 4.25) |
| self.assertRaises(RuntimeError, float_, FloatLike.with_exc(RuntimeError)) |
| |
| self.assertRaises(TypeError, float_, IndexLike.with_val(1.25)) |
| self.assertRaises(OverflowError, float_, IndexLike.with_val(2**2000)) |
| |
| self.assertRaises(TypeError, float_, 1j) |
| self.assertRaises(TypeError, float_, object()) |
| self.assertRaises(SystemError, float_, NULL) |
| |
| def test_index(self): |
| # Test PyNumber_Index() |
| index = _testcapi.number_index |
| |
| self.assertEqual(index(11), 11) |
| |
| with warnings.catch_warnings(): |
| warnings.simplefilter("error", DeprecationWarning) |
| self.assertRaises(DeprecationWarning, index, IndexLike.with_val(True)) |
| with self.assertWarns(DeprecationWarning): |
| self.assertEqual(index(IndexLike.with_val(True)), 1) |
| self.assertRaises(TypeError, index, IndexLike.with_val(1.0)) |
| self.assertRaises(RuntimeError, index, IndexLike.with_exc(RuntimeError)) |
| |
| self.assertRaises(TypeError, index, 1.25) |
| self.assertRaises(TypeError, index, "42") |
| self.assertRaises(TypeError, index, object()) |
| self.assertRaises(SystemError, index, NULL) |
| |
| def test_tobase(self): |
| # Test PyNumber_ToBase() |
| tobase = _testcapi.number_tobase |
| |
| self.assertEqual(tobase(10, 2), bin(10)) |
| self.assertEqual(tobase(11, 8), oct(11)) |
| self.assertEqual(tobase(16, 10), str(16)) |
| self.assertEqual(tobase(13, 16), hex(13)) |
| |
| self.assertRaises(SystemError, tobase, NULL, 2) |
| self.assertRaises(SystemError, tobase, 2, 3) |
| self.assertRaises(TypeError, tobase, 1.25, 2) |
| self.assertRaises(TypeError, tobase, "42", 2) |
| |
| def test_asssizet(self): |
| # Test PyNumber_AsSsize_t() |
| asssizet = _testcapi.number_asssizet |
| |
| for n in [*range(-6, 7), PY_SSIZE_T_MIN, PY_SSIZE_T_MAX]: |
| self.assertEqual(asssizet(n, OverflowError), n) |
| self.assertEqual(asssizet(PY_SSIZE_T_MAX+10, NULL), PY_SSIZE_T_MAX) |
| self.assertEqual(asssizet(PY_SSIZE_T_MIN-10, NULL), PY_SSIZE_T_MIN) |
| |
| self.assertRaises(OverflowError, asssizet, PY_SSIZE_T_MAX + 10, OverflowError) |
| self.assertRaises(RuntimeError, asssizet, PY_SSIZE_T_MAX + 10, RuntimeError) |
| self.assertRaises(SystemError, asssizet, NULL, TypeError) |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |
