mirror of https://github.com/python/cpython
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
#include "parts.h"
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int verify_immortality(PyObject *object)
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{
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assert(_Py_IsImmortal(object));
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Py_ssize_t old_count = Py_REFCNT(object);
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for (int j = 0; j < 10000; j++) {
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Py_DECREF(object);
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}
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Py_ssize_t current_count = Py_REFCNT(object);
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return old_count == current_count;
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}
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static PyObject *
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test_immortal_builtins(PyObject *self, PyObject *Py_UNUSED(ignored))
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{
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PyObject *objects[] = {Py_True, Py_False, Py_None, Py_Ellipsis};
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Py_ssize_t n = Py_ARRAY_LENGTH(objects);
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for (Py_ssize_t i = 0; i < n; i++) {
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assert(verify_immortality(objects[i]));
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}
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Py_RETURN_NONE;
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}
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static PyObject *
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test_immortal_small_ints(PyObject *self, PyObject *Py_UNUSED(ignored))
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{
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for (int i = -5; i <= 256; i++) {
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assert(verify_immortality(PyLong_FromLong(i)));
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}
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Py_RETURN_NONE;
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}
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static PyMethodDef test_methods[] = {
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{"test_immortal_builtins", test_immortal_builtins, METH_NOARGS},
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{"test_immortal_small_ints", test_immortal_small_ints, METH_NOARGS},
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{NULL},
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};
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int
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_PyTestCapi_Init_Immortal(PyObject *mod)
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{
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if (PyModule_AddFunctions(mod, test_methods) < 0) {
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return -1;
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}
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return 0;
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}
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