mirror of https://github.com/python/cpython
989 lines
35 KiB
Python
989 lines
35 KiB
Python
import unittest
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from test.support import cpython_only, requires_limited_api
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try:
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import _testcapi
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except ImportError:
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_testcapi = None
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import struct
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import collections
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import itertools
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import gc
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import contextlib
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import sys
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import types
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class BadStr(str):
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def __eq__(self, other):
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return True
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def __hash__(self):
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# Guaranteed different hash
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return str.__hash__(self) ^ 3
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class FunctionCalls(unittest.TestCase):
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def test_kwargs_order(self):
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# bpo-34320: **kwargs should preserve order of passed OrderedDict
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od = collections.OrderedDict([('a', 1), ('b', 2)])
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od.move_to_end('a')
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expected = list(od.items())
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def fn(**kw):
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return kw
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res = fn(**od)
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self.assertIsInstance(res, dict)
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self.assertEqual(list(res.items()), expected)
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def test_frames_are_popped_after_failed_calls(self):
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# GH-93252: stuff blows up if we don't pop the new frame after
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# recovering from failed calls:
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def f():
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pass
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for _ in range(1000):
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try:
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f(None)
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except TypeError:
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pass
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# BOOM!
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@cpython_only
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class CFunctionCallsErrorMessages(unittest.TestCase):
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def test_varargs0(self):
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msg = r"__contains__\(\) takes exactly one argument \(0 given\)"
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self.assertRaisesRegex(TypeError, msg, {}.__contains__)
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def test_varargs2(self):
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msg = r"__contains__\(\) takes exactly one argument \(2 given\)"
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self.assertRaisesRegex(TypeError, msg, {}.__contains__, 0, 1)
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def test_varargs3(self):
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msg = r"^from_bytes\(\) takes at most 2 positional arguments \(3 given\)"
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self.assertRaisesRegex(TypeError, msg, int.from_bytes, b'a', 'little', False)
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def test_varargs1min(self):
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msg = r"get expected at least 1 argument, got 0"
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self.assertRaisesRegex(TypeError, msg, {}.get)
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msg = r"expected 1 argument, got 0"
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self.assertRaisesRegex(TypeError, msg, {}.__delattr__)
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def test_varargs2min(self):
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msg = r"getattr expected at least 2 arguments, got 0"
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self.assertRaisesRegex(TypeError, msg, getattr)
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def test_varargs1max(self):
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msg = r"input expected at most 1 argument, got 2"
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self.assertRaisesRegex(TypeError, msg, input, 1, 2)
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def test_varargs2max(self):
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msg = r"get expected at most 2 arguments, got 3"
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self.assertRaisesRegex(TypeError, msg, {}.get, 1, 2, 3)
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def test_varargs1_kw(self):
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msg = r"__contains__\(\) takes no keyword arguments"
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self.assertRaisesRegex(TypeError, msg, {}.__contains__, x=2)
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def test_varargs2_kw(self):
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msg = r"__contains__\(\) takes no keyword arguments"
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self.assertRaisesRegex(TypeError, msg, {}.__contains__, x=2, y=2)
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def test_varargs3_kw(self):
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msg = r"bool\(\) takes no keyword arguments"
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self.assertRaisesRegex(TypeError, msg, bool, x=2)
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def test_varargs4_kw(self):
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msg = r"^list[.]index\(\) takes no keyword arguments$"
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self.assertRaisesRegex(TypeError, msg, [].index, x=2)
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def test_varargs5_kw(self):
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msg = r"^hasattr\(\) takes no keyword arguments$"
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self.assertRaisesRegex(TypeError, msg, hasattr, x=2)
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def test_varargs6_kw(self):
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msg = r"^getattr\(\) takes no keyword arguments$"
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self.assertRaisesRegex(TypeError, msg, getattr, x=2)
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def test_varargs7_kw(self):
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msg = r"^next\(\) takes no keyword arguments$"
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self.assertRaisesRegex(TypeError, msg, next, x=2)
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def test_varargs8_kw(self):
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msg = r"^_struct[.]pack\(\) takes no keyword arguments$"
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self.assertRaisesRegex(TypeError, msg, struct.pack, x=2)
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def test_varargs9_kw(self):
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msg = r"^_struct[.]pack_into\(\) takes no keyword arguments$"
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self.assertRaisesRegex(TypeError, msg, struct.pack_into, x=2)
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def test_varargs10_kw(self):
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msg = r"^deque[.]index\(\) takes no keyword arguments$"
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self.assertRaisesRegex(TypeError, msg, collections.deque().index, x=2)
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def test_varargs11_kw(self):
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msg = r"^Struct[.]pack\(\) takes no keyword arguments$"
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self.assertRaisesRegex(TypeError, msg, struct.Struct.pack, struct.Struct(""), x=2)
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def test_varargs12_kw(self):
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msg = r"^staticmethod\(\) takes no keyword arguments$"
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self.assertRaisesRegex(TypeError, msg, staticmethod, func=id)
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def test_varargs13_kw(self):
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msg = r"^classmethod\(\) takes no keyword arguments$"
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self.assertRaisesRegex(TypeError, msg, classmethod, func=id)
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def test_varargs14_kw(self):
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msg = r"^product\(\) takes at most 1 keyword argument \(2 given\)$"
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self.assertRaisesRegex(TypeError, msg,
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itertools.product, 0, repeat=1, foo=2)
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def test_varargs15_kw(self):
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msg = r"^ImportError\(\) takes at most 3 keyword arguments \(4 given\)$"
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self.assertRaisesRegex(TypeError, msg,
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ImportError, 0, name=1, path=2, name_from=3, foo=3)
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def test_varargs16_kw(self):
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msg = r"^min\(\) takes at most 2 keyword arguments \(3 given\)$"
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self.assertRaisesRegex(TypeError, msg,
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min, 0, default=1, key=2, foo=3)
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def test_varargs17_kw(self):
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msg = r"'foo' is an invalid keyword argument for print\(\)$"
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self.assertRaisesRegex(TypeError, msg,
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print, 0, sep=1, end=2, file=3, flush=4, foo=5)
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def test_varargs18_kw(self):
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# _PyArg_UnpackKeywordsWithVararg()
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msg = r"invalid keyword argument for print\(\)$"
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with self.assertRaisesRegex(TypeError, msg):
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print(0, 1, **{BadStr('foo'): ','})
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def test_varargs19_kw(self):
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# _PyArg_UnpackKeywords()
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msg = r"invalid keyword argument for round\(\)$"
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with self.assertRaisesRegex(TypeError, msg):
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round(1.75, **{BadStr('foo'): 1})
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def test_oldargs0_1(self):
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msg = r"keys\(\) takes no arguments \(1 given\)"
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self.assertRaisesRegex(TypeError, msg, {}.keys, 0)
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def test_oldargs0_2(self):
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msg = r"keys\(\) takes no arguments \(2 given\)"
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self.assertRaisesRegex(TypeError, msg, {}.keys, 0, 1)
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def test_oldargs0_1_kw(self):
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msg = r"keys\(\) takes no keyword arguments"
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self.assertRaisesRegex(TypeError, msg, {}.keys, x=2)
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def test_oldargs0_2_kw(self):
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msg = r"keys\(\) takes no keyword arguments"
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self.assertRaisesRegex(TypeError, msg, {}.keys, x=2, y=2)
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def test_oldargs1_0(self):
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msg = r"count\(\) takes exactly one argument \(0 given\)"
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self.assertRaisesRegex(TypeError, msg, [].count)
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def test_oldargs1_2(self):
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msg = r"count\(\) takes exactly one argument \(2 given\)"
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self.assertRaisesRegex(TypeError, msg, [].count, 1, 2)
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def test_oldargs1_0_kw(self):
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msg = r"count\(\) takes no keyword arguments"
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self.assertRaisesRegex(TypeError, msg, [].count, x=2)
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def test_oldargs1_1_kw(self):
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msg = r"count\(\) takes no keyword arguments"
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self.assertRaisesRegex(TypeError, msg, [].count, {}, x=2)
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def test_oldargs1_2_kw(self):
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msg = r"count\(\) takes no keyword arguments"
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self.assertRaisesRegex(TypeError, msg, [].count, x=2, y=2)
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def test_object_not_callable(self):
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msg = r"^'object' object is not callable$"
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self.assertRaisesRegex(TypeError, msg, object())
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def test_module_not_callable_no_suggestion_0(self):
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msg = r"^'module' object is not callable$"
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self.assertRaisesRegex(TypeError, msg, types.ModuleType("mod"))
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def test_module_not_callable_no_suggestion_1(self):
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msg = r"^'module' object is not callable$"
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mod = types.ModuleType("mod")
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mod.mod = 42
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self.assertRaisesRegex(TypeError, msg, mod)
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def test_module_not_callable_no_suggestion_2(self):
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msg = r"^'module' object is not callable$"
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mod = types.ModuleType("mod")
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del mod.__name__
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self.assertRaisesRegex(TypeError, msg, mod)
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def test_module_not_callable_no_suggestion_3(self):
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msg = r"^'module' object is not callable$"
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mod = types.ModuleType("mod")
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mod.__name__ = 42
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self.assertRaisesRegex(TypeError, msg, mod)
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def test_module_not_callable_suggestion(self):
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msg = r"^'module' object is not callable\. Did you mean: 'mod\.mod\(\.\.\.\)'\?$"
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mod = types.ModuleType("mod")
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mod.mod = lambda: ...
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self.assertRaisesRegex(TypeError, msg, mod)
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class TestCallingConventions(unittest.TestCase):
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"""Test calling using various C calling conventions (METH_*) from Python
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Subclasses test several kinds of functions (module-level, methods,
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class methods static methods) using these attributes:
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obj: the object that contains tested functions (as attributes)
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expected_self: expected "self" argument to the C function
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The base class tests module-level functions.
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"""
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def setUp(self):
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self.obj = self.expected_self = _testcapi
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def test_varargs(self):
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self.assertEqual(
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self.obj.meth_varargs(1, 2, 3),
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(self.expected_self, (1, 2, 3)),
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)
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def test_varargs_ext(self):
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self.assertEqual(
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self.obj.meth_varargs(*(1, 2, 3)),
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(self.expected_self, (1, 2, 3)),
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)
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def test_varargs_error_kw(self):
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msg = r"meth_varargs\(\) takes no keyword arguments"
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self.assertRaisesRegex(
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TypeError, msg, lambda: self.obj.meth_varargs(k=1),
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)
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def test_varargs_keywords(self):
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self.assertEqual(
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self.obj.meth_varargs_keywords(1, 2, a=3, b=4),
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(self.expected_self, (1, 2), {'a': 3, 'b': 4})
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)
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def test_varargs_keywords_ext(self):
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self.assertEqual(
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self.obj.meth_varargs_keywords(*[1, 2], **{'a': 3, 'b': 4}),
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(self.expected_self, (1, 2), {'a': 3, 'b': 4})
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)
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def test_o(self):
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self.assertEqual(self.obj.meth_o(1), (self.expected_self, 1))
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def test_o_ext(self):
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self.assertEqual(self.obj.meth_o(*[1]), (self.expected_self, 1))
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def test_o_error_no_arg(self):
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msg = r"meth_o\(\) takes exactly one argument \(0 given\)"
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self.assertRaisesRegex(TypeError, msg, self.obj.meth_o)
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def test_o_error_two_args(self):
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msg = r"meth_o\(\) takes exactly one argument \(2 given\)"
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self.assertRaisesRegex(
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TypeError, msg, lambda: self.obj.meth_o(1, 2),
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)
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def test_o_error_ext(self):
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msg = r"meth_o\(\) takes exactly one argument \(3 given\)"
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self.assertRaisesRegex(
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TypeError, msg, lambda: self.obj.meth_o(*(1, 2, 3)),
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)
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def test_o_error_kw(self):
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msg = r"meth_o\(\) takes no keyword arguments"
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self.assertRaisesRegex(
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TypeError, msg, lambda: self.obj.meth_o(k=1),
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)
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def test_o_error_arg_kw(self):
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msg = r"meth_o\(\) takes no keyword arguments"
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self.assertRaisesRegex(
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TypeError, msg, lambda: self.obj.meth_o(k=1),
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)
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def test_noargs(self):
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self.assertEqual(self.obj.meth_noargs(), self.expected_self)
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def test_noargs_ext(self):
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self.assertEqual(self.obj.meth_noargs(*[]), self.expected_self)
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def test_noargs_error_arg(self):
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msg = r"meth_noargs\(\) takes no arguments \(1 given\)"
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self.assertRaisesRegex(
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TypeError, msg, lambda: self.obj.meth_noargs(1),
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)
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def test_noargs_error_arg2(self):
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msg = r"meth_noargs\(\) takes no arguments \(2 given\)"
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self.assertRaisesRegex(
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TypeError, msg, lambda: self.obj.meth_noargs(1, 2),
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)
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def test_noargs_error_ext(self):
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msg = r"meth_noargs\(\) takes no arguments \(3 given\)"
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self.assertRaisesRegex(
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TypeError, msg, lambda: self.obj.meth_noargs(*(1, 2, 3)),
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)
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def test_noargs_error_kw(self):
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msg = r"meth_noargs\(\) takes no keyword arguments"
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self.assertRaisesRegex(
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TypeError, msg, lambda: self.obj.meth_noargs(k=1),
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)
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def test_fastcall(self):
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self.assertEqual(
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self.obj.meth_fastcall(1, 2, 3),
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(self.expected_self, (1, 2, 3)),
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)
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def test_fastcall_ext(self):
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self.assertEqual(
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self.obj.meth_fastcall(*(1, 2, 3)),
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(self.expected_self, (1, 2, 3)),
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)
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def test_fastcall_error_kw(self):
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msg = r"meth_fastcall\(\) takes no keyword arguments"
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self.assertRaisesRegex(
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TypeError, msg, lambda: self.obj.meth_fastcall(k=1),
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)
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def test_fastcall_keywords(self):
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self.assertEqual(
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self.obj.meth_fastcall_keywords(1, 2, a=3, b=4),
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(self.expected_self, (1, 2), {'a': 3, 'b': 4})
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)
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def test_fastcall_keywords_ext(self):
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self.assertEqual(
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self.obj.meth_fastcall_keywords(*(1, 2), **{'a': 3, 'b': 4}),
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(self.expected_self, (1, 2), {'a': 3, 'b': 4})
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)
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class TestCallingConventionsInstance(TestCallingConventions):
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"""Test calling instance methods using various calling conventions"""
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def setUp(self):
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self.obj = self.expected_self = _testcapi.MethInstance()
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class TestCallingConventionsClass(TestCallingConventions):
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"""Test calling class methods using various calling conventions"""
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def setUp(self):
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self.obj = self.expected_self = _testcapi.MethClass
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class TestCallingConventionsClassInstance(TestCallingConventions):
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"""Test calling class methods on instance"""
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def setUp(self):
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self.obj = _testcapi.MethClass()
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self.expected_self = _testcapi.MethClass
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class TestCallingConventionsStatic(TestCallingConventions):
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"""Test calling static methods using various calling conventions"""
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def setUp(self):
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self.obj = _testcapi.MethStatic()
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self.expected_self = None
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def pyfunc(arg1, arg2):
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return [arg1, arg2]
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def pyfunc_noarg():
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return "noarg"
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class PythonClass:
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def method(self, arg1, arg2):
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return [arg1, arg2]
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def method_noarg(self):
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return "noarg"
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@classmethod
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def class_method(cls):
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return "classmethod"
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@staticmethod
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def static_method():
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return "staticmethod"
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PYTHON_INSTANCE = PythonClass()
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NULL_OR_EMPTY = object()
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class FastCallTests(unittest.TestCase):
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"""Test calling using various callables from C
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"""
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# Test calls with positional arguments
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CALLS_POSARGS = [
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# (func, args: tuple, result)
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# Python function with 2 arguments
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(pyfunc, (1, 2), [1, 2]),
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# Python function without argument
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(pyfunc_noarg, (), "noarg"),
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# Python class methods
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(PythonClass.class_method, (), "classmethod"),
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(PythonClass.static_method, (), "staticmethod"),
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# Python instance methods
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(PYTHON_INSTANCE.method, (1, 2), [1, 2]),
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(PYTHON_INSTANCE.method_noarg, (), "noarg"),
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(PYTHON_INSTANCE.class_method, (), "classmethod"),
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(PYTHON_INSTANCE.static_method, (), "staticmethod"),
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# C callables are added later
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]
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# Test calls with positional and keyword arguments
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CALLS_KWARGS = [
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# (func, args: tuple, kwargs: dict, result)
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# Python function with 2 arguments
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(pyfunc, (1,), {'arg2': 2}, [1, 2]),
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(pyfunc, (), {'arg1': 1, 'arg2': 2}, [1, 2]),
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# Python instance methods
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(PYTHON_INSTANCE.method, (1,), {'arg2': 2}, [1, 2]),
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(PYTHON_INSTANCE.method, (), {'arg1': 1, 'arg2': 2}, [1, 2]),
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# C callables are added later
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]
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# Add all the calling conventions and variants of C callables
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_instance = _testcapi.MethInstance()
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for obj, expected_self in (
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(_testcapi, _testcapi), # module-level function
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(_instance, _instance), # bound method
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(_testcapi.MethClass, _testcapi.MethClass), # class method on class
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(_testcapi.MethClass(), _testcapi.MethClass), # class method on inst.
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(_testcapi.MethStatic, None), # static method
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):
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CALLS_POSARGS.extend([
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|
(obj.meth_varargs, (1, 2), (expected_self, (1, 2))),
|
|
(obj.meth_varargs_keywords,
|
|
(1, 2), (expected_self, (1, 2), NULL_OR_EMPTY)),
|
|
(obj.meth_fastcall, (1, 2), (expected_self, (1, 2))),
|
|
(obj.meth_fastcall, (), (expected_self, ())),
|
|
(obj.meth_fastcall_keywords,
|
|
(1, 2), (expected_self, (1, 2), NULL_OR_EMPTY)),
|
|
(obj.meth_fastcall_keywords,
|
|
(), (expected_self, (), NULL_OR_EMPTY)),
|
|
(obj.meth_noargs, (), expected_self),
|
|
(obj.meth_o, (123, ), (expected_self, 123)),
|
|
])
|
|
|
|
CALLS_KWARGS.extend([
|
|
(obj.meth_varargs_keywords,
|
|
(1, 2), {'x': 'y'}, (expected_self, (1, 2), {'x': 'y'})),
|
|
(obj.meth_varargs_keywords,
|
|
(), {'x': 'y'}, (expected_self, (), {'x': 'y'})),
|
|
(obj.meth_varargs_keywords,
|
|
(1, 2), {}, (expected_self, (1, 2), NULL_OR_EMPTY)),
|
|
(obj.meth_fastcall_keywords,
|
|
(1, 2), {'x': 'y'}, (expected_self, (1, 2), {'x': 'y'})),
|
|
(obj.meth_fastcall_keywords,
|
|
(), {'x': 'y'}, (expected_self, (), {'x': 'y'})),
|
|
(obj.meth_fastcall_keywords,
|
|
(1, 2), {}, (expected_self, (1, 2), NULL_OR_EMPTY)),
|
|
])
|
|
|
|
def check_result(self, result, expected):
|
|
if isinstance(expected, tuple) and expected[-1] is NULL_OR_EMPTY:
|
|
if result[-1] in ({}, None):
|
|
expected = (*expected[:-1], result[-1])
|
|
self.assertEqual(result, expected)
|
|
|
|
def test_vectorcall_dict(self):
|
|
# Test PyObject_VectorcallDict()
|
|
|
|
for func, args, expected in self.CALLS_POSARGS:
|
|
with self.subTest(func=func, args=args):
|
|
# kwargs=NULL
|
|
result = _testcapi.pyobject_fastcalldict(func, args, None)
|
|
self.check_result(result, expected)
|
|
|
|
if not args:
|
|
# args=NULL, nargs=0, kwargs=NULL
|
|
result = _testcapi.pyobject_fastcalldict(func, None, None)
|
|
self.check_result(result, expected)
|
|
|
|
for func, args, kwargs, expected in self.CALLS_KWARGS:
|
|
with self.subTest(func=func, args=args, kwargs=kwargs):
|
|
result = _testcapi.pyobject_fastcalldict(func, args, kwargs)
|
|
self.check_result(result, expected)
|
|
|
|
def test_vectorcall(self):
|
|
# Test PyObject_Vectorcall()
|
|
|
|
for func, args, expected in self.CALLS_POSARGS:
|
|
with self.subTest(func=func, args=args):
|
|
# kwnames=NULL
|
|
result = _testcapi.pyobject_vectorcall(func, args, None)
|
|
self.check_result(result, expected)
|
|
|
|
# kwnames=()
|
|
result = _testcapi.pyobject_vectorcall(func, args, ())
|
|
self.check_result(result, expected)
|
|
|
|
if not args:
|
|
# kwnames=NULL
|
|
result = _testcapi.pyobject_vectorcall(func, None, None)
|
|
self.check_result(result, expected)
|
|
|
|
# kwnames=()
|
|
result = _testcapi.pyobject_vectorcall(func, None, ())
|
|
self.check_result(result, expected)
|
|
|
|
for func, args, kwargs, expected in self.CALLS_KWARGS:
|
|
with self.subTest(func=func, args=args, kwargs=kwargs):
|
|
kwnames = tuple(kwargs.keys())
|
|
args = args + tuple(kwargs.values())
|
|
result = _testcapi.pyobject_vectorcall(func, args, kwnames)
|
|
self.check_result(result, expected)
|
|
|
|
def test_fastcall_clearing_dict(self):
|
|
# Test bpo-36907: the point of the test is just checking that this
|
|
# does not crash.
|
|
class IntWithDict:
|
|
__slots__ = ["kwargs"]
|
|
def __init__(self, **kwargs):
|
|
self.kwargs = kwargs
|
|
def __index__(self):
|
|
self.kwargs.clear()
|
|
gc.collect()
|
|
return 0
|
|
x = IntWithDict(optimize=IntWithDict())
|
|
# We test the argument handling of "compile" here, the compilation
|
|
# itself is not relevant. When we pass flags=x below, x.__index__() is
|
|
# called, which changes the keywords dict.
|
|
compile("pass", "", "exec", x, **x.kwargs)
|
|
|
|
|
|
Py_TPFLAGS_HAVE_VECTORCALL = 1 << 11
|
|
Py_TPFLAGS_METHOD_DESCRIPTOR = 1 << 17
|
|
|
|
|
|
def testfunction(self):
|
|
"""some doc"""
|
|
return self
|
|
|
|
|
|
def testfunction_kw(self, *, kw):
|
|
"""some doc"""
|
|
return self
|
|
|
|
|
|
ADAPTIVE_WARMUP_DELAY = 2
|
|
|
|
|
|
class TestPEP590(unittest.TestCase):
|
|
|
|
def test_method_descriptor_flag(self):
|
|
import functools
|
|
cached = functools.lru_cache(1)(testfunction)
|
|
|
|
self.assertFalse(type(repr).__flags__ & Py_TPFLAGS_METHOD_DESCRIPTOR)
|
|
self.assertTrue(type(list.append).__flags__ & Py_TPFLAGS_METHOD_DESCRIPTOR)
|
|
self.assertTrue(type(list.__add__).__flags__ & Py_TPFLAGS_METHOD_DESCRIPTOR)
|
|
self.assertTrue(type(testfunction).__flags__ & Py_TPFLAGS_METHOD_DESCRIPTOR)
|
|
self.assertTrue(type(cached).__flags__ & Py_TPFLAGS_METHOD_DESCRIPTOR)
|
|
|
|
self.assertTrue(_testcapi.MethodDescriptorBase.__flags__ & Py_TPFLAGS_METHOD_DESCRIPTOR)
|
|
self.assertTrue(_testcapi.MethodDescriptorDerived.__flags__ & Py_TPFLAGS_METHOD_DESCRIPTOR)
|
|
self.assertFalse(_testcapi.MethodDescriptorNopGet.__flags__ & Py_TPFLAGS_METHOD_DESCRIPTOR)
|
|
|
|
# Mutable heap types should not inherit Py_TPFLAGS_METHOD_DESCRIPTOR
|
|
class MethodDescriptorHeap(_testcapi.MethodDescriptorBase):
|
|
pass
|
|
self.assertFalse(MethodDescriptorHeap.__flags__ & Py_TPFLAGS_METHOD_DESCRIPTOR)
|
|
|
|
def test_vectorcall_flag(self):
|
|
self.assertTrue(_testcapi.MethodDescriptorBase.__flags__ & Py_TPFLAGS_HAVE_VECTORCALL)
|
|
self.assertTrue(_testcapi.MethodDescriptorDerived.__flags__ & Py_TPFLAGS_HAVE_VECTORCALL)
|
|
self.assertFalse(_testcapi.MethodDescriptorNopGet.__flags__ & Py_TPFLAGS_HAVE_VECTORCALL)
|
|
self.assertTrue(_testcapi.MethodDescriptor2.__flags__ & Py_TPFLAGS_HAVE_VECTORCALL)
|
|
|
|
# Mutable heap types should inherit Py_TPFLAGS_HAVE_VECTORCALL,
|
|
# but should lose it when __call__ is overridden
|
|
class MethodDescriptorHeap(_testcapi.MethodDescriptorBase):
|
|
pass
|
|
self.assertTrue(MethodDescriptorHeap.__flags__ & Py_TPFLAGS_HAVE_VECTORCALL)
|
|
MethodDescriptorHeap.__call__ = print
|
|
self.assertFalse(MethodDescriptorHeap.__flags__ & Py_TPFLAGS_HAVE_VECTORCALL)
|
|
|
|
# Mutable heap types should not inherit Py_TPFLAGS_HAVE_VECTORCALL if
|
|
# they define __call__ directly
|
|
class MethodDescriptorHeap(_testcapi.MethodDescriptorBase):
|
|
def __call__(self):
|
|
pass
|
|
self.assertFalse(MethodDescriptorHeap.__flags__ & Py_TPFLAGS_HAVE_VECTORCALL)
|
|
|
|
def test_vectorcall_override(self):
|
|
# Check that tp_call can correctly override vectorcall.
|
|
# MethodDescriptorNopGet implements tp_call but it inherits from
|
|
# MethodDescriptorBase, which implements vectorcall. Since
|
|
# MethodDescriptorNopGet returns the args tuple when called, we check
|
|
# additionally that no new tuple is created for this call.
|
|
args = tuple(range(5))
|
|
f = _testcapi.MethodDescriptorNopGet()
|
|
self.assertIs(f(*args), args)
|
|
|
|
def test_vectorcall_override_on_mutable_class(self):
|
|
"""Setting __call__ should disable vectorcall"""
|
|
TestType = _testcapi.make_vectorcall_class()
|
|
instance = TestType()
|
|
self.assertEqual(instance(), "tp_call")
|
|
instance.set_vectorcall(TestType)
|
|
self.assertEqual(instance(), "vectorcall") # assume vectorcall is used
|
|
TestType.__call__ = lambda self: "custom"
|
|
self.assertEqual(instance(), "custom")
|
|
|
|
def test_vectorcall_override_with_subclass(self):
|
|
"""Setting __call__ on a superclass should disable vectorcall"""
|
|
SuperType = _testcapi.make_vectorcall_class()
|
|
class DerivedType(SuperType):
|
|
pass
|
|
|
|
instance = DerivedType()
|
|
|
|
# Derived types with its own vectorcall should be unaffected
|
|
UnaffectedType1 = _testcapi.make_vectorcall_class(DerivedType)
|
|
UnaffectedType2 = _testcapi.make_vectorcall_class(SuperType)
|
|
|
|
# Aside: Quickly check that the C helper actually made derived types
|
|
self.assertTrue(issubclass(UnaffectedType1, DerivedType))
|
|
self.assertTrue(issubclass(UnaffectedType2, SuperType))
|
|
|
|
# Initial state: tp_call
|
|
self.assertEqual(instance(), "tp_call")
|
|
self.assertEqual(_testcapi.has_vectorcall_flag(SuperType), True)
|
|
self.assertEqual(_testcapi.has_vectorcall_flag(DerivedType), True)
|
|
self.assertEqual(_testcapi.has_vectorcall_flag(UnaffectedType1), True)
|
|
self.assertEqual(_testcapi.has_vectorcall_flag(UnaffectedType2), True)
|
|
|
|
# Setting the vectorcall function
|
|
instance.set_vectorcall(SuperType)
|
|
|
|
self.assertEqual(instance(), "vectorcall")
|
|
self.assertEqual(_testcapi.has_vectorcall_flag(SuperType), True)
|
|
self.assertEqual(_testcapi.has_vectorcall_flag(DerivedType), True)
|
|
self.assertEqual(_testcapi.has_vectorcall_flag(UnaffectedType1), True)
|
|
self.assertEqual(_testcapi.has_vectorcall_flag(UnaffectedType2), True)
|
|
|
|
# Setting __call__ should remove vectorcall from all subclasses
|
|
SuperType.__call__ = lambda self: "custom"
|
|
|
|
self.assertEqual(instance(), "custom")
|
|
self.assertEqual(_testcapi.has_vectorcall_flag(SuperType), False)
|
|
self.assertEqual(_testcapi.has_vectorcall_flag(DerivedType), False)
|
|
self.assertEqual(_testcapi.has_vectorcall_flag(UnaffectedType1), True)
|
|
self.assertEqual(_testcapi.has_vectorcall_flag(UnaffectedType2), True)
|
|
|
|
|
|
def test_vectorcall(self):
|
|
# Test a bunch of different ways to call objects:
|
|
# 1. vectorcall using PyVectorcall_Call()
|
|
# (only for objects that support vectorcall directly)
|
|
# 2. normal call
|
|
# 3. vectorcall using PyObject_Vectorcall()
|
|
# 4. call as bound method
|
|
# 5. call using functools.partial
|
|
|
|
# A list of (function, args, kwargs, result) calls to test
|
|
calls = [(len, (range(42),), {}, 42),
|
|
(list.append, ([], 0), {}, None),
|
|
([].append, (0,), {}, None),
|
|
(sum, ([36],), {"start":6}, 42),
|
|
(testfunction, (42,), {}, 42),
|
|
(testfunction_kw, (42,), {"kw":None}, 42),
|
|
(_testcapi.MethodDescriptorBase(), (0,), {}, True),
|
|
(_testcapi.MethodDescriptorDerived(), (0,), {}, True),
|
|
(_testcapi.MethodDescriptor2(), (0,), {}, False)]
|
|
|
|
from _testcapi import pyobject_vectorcall, pyvectorcall_call
|
|
from types import MethodType
|
|
from functools import partial
|
|
|
|
def vectorcall(func, args, kwargs):
|
|
args = *args, *kwargs.values()
|
|
kwnames = tuple(kwargs)
|
|
return pyobject_vectorcall(func, args, kwnames)
|
|
|
|
for (func, args, kwargs, expected) in calls:
|
|
with self.subTest(str(func)):
|
|
if not kwargs:
|
|
self.assertEqual(expected, pyvectorcall_call(func, args))
|
|
self.assertEqual(expected, pyvectorcall_call(func, args, kwargs))
|
|
|
|
# Add derived classes (which do not support vectorcall directly,
|
|
# but do support all other ways of calling).
|
|
|
|
class MethodDescriptorHeap(_testcapi.MethodDescriptorBase):
|
|
pass
|
|
|
|
class MethodDescriptorOverridden(_testcapi.MethodDescriptorBase):
|
|
def __call__(self, n):
|
|
return 'new'
|
|
|
|
class SuperBase:
|
|
def __call__(self, *args):
|
|
return super().__call__(*args)
|
|
|
|
class MethodDescriptorSuper(SuperBase, _testcapi.MethodDescriptorBase):
|
|
def __call__(self, *args):
|
|
return super().__call__(*args)
|
|
|
|
calls += [
|
|
(dict.update, ({},), {"key":True}, None),
|
|
({}.update, ({},), {"key":True}, None),
|
|
(MethodDescriptorHeap(), (0,), {}, True),
|
|
(MethodDescriptorOverridden(), (0,), {}, 'new'),
|
|
(MethodDescriptorSuper(), (0,), {}, True),
|
|
]
|
|
|
|
for (func, args, kwargs, expected) in calls:
|
|
with self.subTest(str(func)):
|
|
args1 = args[1:]
|
|
meth = MethodType(func, args[0])
|
|
wrapped = partial(func)
|
|
if not kwargs:
|
|
self.assertEqual(expected, func(*args))
|
|
self.assertEqual(expected, pyobject_vectorcall(func, args, None))
|
|
self.assertEqual(expected, meth(*args1))
|
|
self.assertEqual(expected, wrapped(*args))
|
|
self.assertEqual(expected, func(*args, **kwargs))
|
|
self.assertEqual(expected, vectorcall(func, args, kwargs))
|
|
self.assertEqual(expected, meth(*args1, **kwargs))
|
|
self.assertEqual(expected, wrapped(*args, **kwargs))
|
|
|
|
def test_setvectorcall(self):
|
|
from _testcapi import function_setvectorcall
|
|
def f(num): return num + 1
|
|
assert_equal = self.assertEqual
|
|
num = 10
|
|
assert_equal(11, f(num))
|
|
function_setvectorcall(f)
|
|
# make sure specializer is triggered by running > 50 times
|
|
for _ in range(10 * ADAPTIVE_WARMUP_DELAY):
|
|
assert_equal("overridden", f(num))
|
|
|
|
def test_setvectorcall_load_attr_specialization_skip(self):
|
|
from _testcapi import function_setvectorcall
|
|
|
|
class X:
|
|
def __getattribute__(self, attr):
|
|
return attr
|
|
|
|
assert_equal = self.assertEqual
|
|
x = X()
|
|
assert_equal("a", x.a)
|
|
function_setvectorcall(X.__getattribute__)
|
|
# make sure specialization doesn't trigger
|
|
# when vectorcall is overridden
|
|
for _ in range(ADAPTIVE_WARMUP_DELAY):
|
|
assert_equal("overridden", x.a)
|
|
|
|
def test_setvectorcall_load_attr_specialization_deopt(self):
|
|
from _testcapi import function_setvectorcall
|
|
|
|
class X:
|
|
def __getattribute__(self, attr):
|
|
return attr
|
|
|
|
def get_a(x):
|
|
return x.a
|
|
|
|
assert_equal = self.assertEqual
|
|
x = X()
|
|
# trigger LOAD_ATTR_GETATTRIBUTE_OVERRIDDEN specialization
|
|
for _ in range(ADAPTIVE_WARMUP_DELAY):
|
|
assert_equal("a", get_a(x))
|
|
function_setvectorcall(X.__getattribute__)
|
|
# make sure specialized LOAD_ATTR_GETATTRIBUTE_OVERRIDDEN
|
|
# gets deopted due to overridden vectorcall
|
|
for _ in range(ADAPTIVE_WARMUP_DELAY):
|
|
assert_equal("overridden", get_a(x))
|
|
|
|
@requires_limited_api
|
|
def test_vectorcall_limited_incoming(self):
|
|
from _testcapi import pyobject_vectorcall
|
|
obj = _testcapi.LimitedVectorCallClass()
|
|
self.assertEqual(pyobject_vectorcall(obj, (), ()), "vectorcall called")
|
|
|
|
@requires_limited_api
|
|
def test_vectorcall_limited_outgoing(self):
|
|
from _testcapi import call_vectorcall
|
|
|
|
args_captured = []
|
|
kwargs_captured = []
|
|
|
|
def f(*args, **kwargs):
|
|
args_captured.append(args)
|
|
kwargs_captured.append(kwargs)
|
|
return "success"
|
|
|
|
self.assertEqual(call_vectorcall(f), "success")
|
|
self.assertEqual(args_captured, [("foo",)])
|
|
self.assertEqual(kwargs_captured, [{"baz": "bar"}])
|
|
|
|
@requires_limited_api
|
|
def test_vectorcall_limited_outgoing_method(self):
|
|
from _testcapi import call_vectorcall_method
|
|
|
|
args_captured = []
|
|
kwargs_captured = []
|
|
|
|
class TestInstance:
|
|
def f(self, *args, **kwargs):
|
|
args_captured.append(args)
|
|
kwargs_captured.append(kwargs)
|
|
return "success"
|
|
|
|
self.assertEqual(call_vectorcall_method(TestInstance()), "success")
|
|
self.assertEqual(args_captured, [("foo",)])
|
|
self.assertEqual(kwargs_captured, [{"baz": "bar"}])
|
|
|
|
class A:
|
|
def method_two_args(self, x, y):
|
|
pass
|
|
|
|
@staticmethod
|
|
def static_no_args():
|
|
pass
|
|
|
|
@staticmethod
|
|
def positional_only(arg, /):
|
|
pass
|
|
|
|
@cpython_only
|
|
class TestErrorMessagesUseQualifiedName(unittest.TestCase):
|
|
|
|
@contextlib.contextmanager
|
|
def check_raises_type_error(self, message):
|
|
with self.assertRaises(TypeError) as cm:
|
|
yield
|
|
self.assertEqual(str(cm.exception), message)
|
|
|
|
def test_missing_arguments(self):
|
|
msg = "A.method_two_args() missing 1 required positional argument: 'y'"
|
|
with self.check_raises_type_error(msg):
|
|
A().method_two_args("x")
|
|
|
|
def test_too_many_positional(self):
|
|
msg = "A.static_no_args() takes 0 positional arguments but 1 was given"
|
|
with self.check_raises_type_error(msg):
|
|
A.static_no_args("oops it's an arg")
|
|
|
|
def test_positional_only_passed_as_keyword(self):
|
|
msg = "A.positional_only() got some positional-only arguments passed as keyword arguments: 'arg'"
|
|
with self.check_raises_type_error(msg):
|
|
A.positional_only(arg="x")
|
|
|
|
def test_unexpected_keyword(self):
|
|
msg = "A.method_two_args() got an unexpected keyword argument 'bad'"
|
|
with self.check_raises_type_error(msg):
|
|
A().method_two_args(bad="x")
|
|
|
|
def test_multiple_values(self):
|
|
msg = "A.method_two_args() got multiple values for argument 'x'"
|
|
with self.check_raises_type_error(msg):
|
|
A().method_two_args("x", "y", x="oops")
|
|
|
|
@cpython_only
|
|
class TestRecursion(unittest.TestCase):
|
|
|
|
def test_super_deep(self):
|
|
|
|
def recurse(n):
|
|
if n:
|
|
recurse(n-1)
|
|
|
|
def py_recurse(n, m):
|
|
if n:
|
|
py_recurse(n-1, m)
|
|
else:
|
|
c_py_recurse(m-1)
|
|
|
|
def c_recurse(n):
|
|
if n:
|
|
_testcapi.pyobject_vectorcall(c_recurse, (n-1,), ())
|
|
|
|
def c_py_recurse(m):
|
|
if m:
|
|
_testcapi.pyobject_vectorcall(py_recurse, (1000, m), ())
|
|
|
|
depth = sys.getrecursionlimit()
|
|
sys.setrecursionlimit(100_000)
|
|
try:
|
|
recurse(90_000)
|
|
with self.assertRaises(RecursionError):
|
|
recurse(101_000)
|
|
c_recurse(100)
|
|
with self.assertRaises(RecursionError):
|
|
c_recurse(90_000)
|
|
c_py_recurse(90)
|
|
with self.assertRaises(RecursionError):
|
|
c_py_recurse(100_000)
|
|
finally:
|
|
sys.setrecursionlimit(depth)
|
|
|
|
|
|
class TestFunctionWithManyArgs(unittest.TestCase):
|
|
def test_function_with_many_args(self):
|
|
for N in (10, 500, 1000):
|
|
with self.subTest(N=N):
|
|
args = ",".join([f"a{i}" for i in range(N)])
|
|
src = f"def f({args}) : return a{N//2}"
|
|
l = {}
|
|
exec(src, {}, l)
|
|
self.assertEqual(l['f'](*range(N)), N//2)
|
|
|
|
|
|
@unittest.skipIf(_testcapi is None, 'need _testcapi')
|
|
class TestCAPI(unittest.TestCase):
|
|
def test_cfunction_call(self):
|
|
def func(*args, **kwargs):
|
|
return (args, kwargs)
|
|
|
|
# PyCFunction_Call() was removed in Python 3.13 API, but was kept in
|
|
# the stable ABI.
|
|
def PyCFunction_Call(func, *args, **kwargs):
|
|
if kwargs:
|
|
return _testcapi.pycfunction_call(func, args, kwargs)
|
|
else:
|
|
return _testcapi.pycfunction_call(func, args)
|
|
|
|
self.assertEqual(PyCFunction_Call(func), ((), {}))
|
|
self.assertEqual(PyCFunction_Call(func, 1, 2, 3), ((1, 2, 3), {}))
|
|
self.assertEqual(PyCFunction_Call(func, "arg", num=5), (("arg",), {'num': 5}))
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|