Загрузить файлы в «venv/Lib/site-packages/greenlet/tests»

venv/Lib/site-packages/greenlet/tests/__init__.py

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+# -*- coding: utf-8 -*-
+"""
+Tests for greenlet.
+
+"""
+import os
+import sys
+import sysconfig
+import unittest
+
+from gc import collect
+from gc import get_objects
+from threading import active_count as active_thread_count
+from time import sleep
+from time import time
+
+import psutil
+
+from greenlet import greenlet as RawGreenlet
+from greenlet import getcurrent
+
+from greenlet._greenlet import get_pending_cleanup_count
+from greenlet._greenlet import get_total_main_greenlets
+
+from . import leakcheck
+
+PY312 = sys.version_info[:2] >= (3, 12)
+PY313 = sys.version_info[:2] >= (3, 13)
+# XXX: First tested on 3.14a7. Revisit all uses of this on later versions to ensure they
+# are still valid.
+PY314 = sys.version_info[:2] >= (3, 14)
+
+WIN = sys.platform.startswith("win")
+RUNNING_ON_GITHUB_ACTIONS = os.environ.get('GITHUB_ACTIONS')
+RUNNING_ON_TRAVIS = os.environ.get('TRAVIS') or RUNNING_ON_GITHUB_ACTIONS
+RUNNING_ON_APPVEYOR = os.environ.get('APPVEYOR')
+RUNNING_ON_CI = RUNNING_ON_TRAVIS or RUNNING_ON_APPVEYOR
+RUNNING_ON_MANYLINUX = os.environ.get('GREENLET_MANYLINUX')
+
+# Is the current interpreter free-threaded?) Note that this
+# isn't the same as whether the GIL is enabled, this is the build-time
+# value. Certain CPython details, like the garbage collector,
+# work very differently on potentially-free-threaded builds than
+# standard builds.
+RUNNING_ON_FREETHREAD_BUILD = bool(sysconfig.get_config_var("Py_GIL_DISABLED"))
+
+class TestCaseMetaClass(type):
+    # wrap each test method with
+    # a) leak checks
+    def __new__(cls, classname, bases, classDict):
+        # pylint and pep8 fight over what this should be called (mcs or cls).
+        # pylint gets it right, but we can't scope disable pep8, so we go with
+        # its convention.
+        # pylint: disable=bad-mcs-classmethod-argument
+        check_totalrefcount = True
+
+        # Python 3: must copy, we mutate the classDict. Interestingly enough,
+        # it doesn't actually error out, but under 3.6 we wind up wrapping
+        # and re-wrapping the same items over and over and over.
+        for key, value in list(classDict.items()):
+            if key.startswith('test') and callable(value):
+                classDict.pop(key)
+                if check_totalrefcount:
+                    value = leakcheck.wrap_refcount(value)
+                classDict[key] = value
+        return type.__new__(cls, classname, bases, classDict)
+
+
+class TestCase(unittest.TestCase, metaclass=TestCaseMetaClass):
+
+    cleanup_attempt_sleep_duration = 0.001
+    cleanup_max_sleep_seconds = 1
+
+    def wait_for_pending_cleanups(self,
+                                  initial_active_threads=None,
+                                  initial_main_greenlets=None):
+        initial_active_threads = initial_active_threads or self.threads_before_test
+        initial_main_greenlets = initial_main_greenlets or self.main_greenlets_before_test
+        sleep_time = self.cleanup_attempt_sleep_duration
+        # NOTE: This is racy! A Python-level thread object may be dead
+        # and gone, but the C thread may not yet have fired its
+        # destructors and added to the queue. There's no particular
+        # way to know that's about to happen. We try to watch the
+        # Python threads to make sure they, at least, have gone away.
+        # Counting the main greenlets, which we can easily do deterministically,
+        # also helps.
+
+        # Always sleep at least once to let other threads run
+        sleep(sleep_time)
+        quit_after = time() + self.cleanup_max_sleep_seconds
+        # TODO: We could add an API that calls us back when a particular main greenlet is deleted?
+        # It would have to drop the GIL
+        while (
+                get_pending_cleanup_count()
+                or active_thread_count() > initial_active_threads
+                or (not self.expect_greenlet_leak
+                    and get_total_main_greenlets() > initial_main_greenlets)):
+            sleep(sleep_time)
+            if time() > quit_after:
+                print("Time limit exceeded.")
+                print("Threads: Waiting for only", initial_active_threads,
+                      "-->", active_thread_count())
+                print("MGlets : Waiting for only", initial_main_greenlets,
+                      "-->", get_total_main_greenlets())
+                break
+        collect()
+
+    def count_objects(self, kind=list, exact_kind=True):
+        # pylint:disable=unidiomatic-typecheck
+        # Collect the garbage.
+        for _ in range(3):
+            collect()
+        if exact_kind:
+            return sum(
+                1
+                for x in get_objects()
+                if type(x) is kind
+            )
+        # instances
+        return sum(
+            1
+            for x in get_objects()
+            if isinstance(x, kind)
+        )
+
+    greenlets_before_test = 0
+    threads_before_test = 0
+    main_greenlets_before_test = 0
+    expect_greenlet_leak = False
+
+    def count_greenlets(self):
+        """
+        Find all the greenlets and subclasses tracked by the GC.
+        """
+        return self.count_objects(RawGreenlet, False)
+
+    def setUp(self):
+        # Ensure the main greenlet exists, otherwise the first test
+        # gets a false positive leak
+        super().setUp()
+        getcurrent()
+        self.threads_before_test = active_thread_count()
+        self.main_greenlets_before_test = get_total_main_greenlets()
+        self.wait_for_pending_cleanups(self.threads_before_test, self.main_greenlets_before_test)
+        self.greenlets_before_test = self.count_greenlets()
+
+    def tearDown(self):
+        if getattr(self, 'skipTearDown', False):
+            return
+
+        self.wait_for_pending_cleanups(self.threads_before_test, self.main_greenlets_before_test)
+        super().tearDown()
+
+    def get_expected_returncodes_for_aborted_process(self):
+        import signal
+        # The child should be aborted in an unusual way. On POSIX
+        # platforms, this is done with abort() and signal.SIGABRT,
+        # which is reflected in a negative return value; however, on
+        # Windows, even though we observe the child print "Fatal
+        # Python error: Aborted" and in older versions of the C
+        # runtime "This application has requested the Runtime to
+        # terminate it in an unusual way," it always has an exit code
+        # of 3. This is interesting because 3 is the error code for
+        # ERROR_PATH_NOT_FOUND; BUT: the C runtime abort() function
+        # also uses this code.
+        #
+        # If we link to the static C library on Windows, the error
+        # code changes to '0xc0000409' (hex(3221226505)), which
+        # apparently is STATUS_STACK_BUFFER_OVERRUN; but "What this
+        # means is that nowadays when you get a
+        # STATUS_STACK_BUFFER_OVERRUN, it doesn’t actually mean that
+        # there is a stack buffer overrun. It just means that the
+        # application decided to terminate itself with great haste."
+        #
+        #
+        # On windows, we've also seen '0xc0000005' (hex(3221225477)).
+        # That's "Access Violation"
+        #
+        # See
+        # https://devblogs.microsoft.com/oldnewthing/20110519-00/?p=10623
+        # and
+        # https://docs.microsoft.com/en-us/previous-versions/k089yyh0(v=vs.140)?redirectedfrom=MSDN
+        # and
+        # https://devblogs.microsoft.com/oldnewthing/20190108-00/?p=100655
+        expected_exit = (
+            -signal.SIGABRT,
+            # But beginning on Python 3.11, the faulthandler
+            # that prints the C backtraces sometimes segfaults after
+            # reporting the exception but before printing the stack.
+            # This has only been seen on linux/gcc.
+            -signal.SIGSEGV,
+        ) if not WIN else (
+            3,
+            0xc0000409,
+            0xc0000005,
+        )
+        return expected_exit
+
+    def get_process_uss(self):
+        """
+        Return the current process's USS in bytes.
+
+        uss is available on Linux, macOS, Windows. Also known as
+        "Unique Set Size", this is the memory which is unique to a
+        process and which would be freed if the process was terminated
+        right now.
+
+        If this is not supported by ``psutil``, this raises the
+        :exc:`unittest.SkipTest` exception.
+        """
+        try:
+            return psutil.Process().memory_full_info().uss
+        except AttributeError as e:
+            raise unittest.SkipTest("uss not supported") from e
+
+    def run_script(self, script_name, show_output=True):
+        import subprocess
+        script = os.path.join(
+            os.path.dirname(__file__),
+            script_name,
+        )
+
+        try:
+            return subprocess.check_output([sys.executable, script],
+                                           encoding='utf-8',
+                                           stderr=subprocess.STDOUT)
+        except subprocess.CalledProcessError as ex:
+            if show_output:
+                print('-----')
+                print('Failed to run script', script)
+                print('~~~~~')
+                print(ex.output)
+                print('------')
+            raise
+
+
+    def assertScriptRaises(self, script_name, exitcodes=None):
+        import subprocess
+        with self.assertRaises(subprocess.CalledProcessError) as exc:
+            output = self.run_script(script_name, show_output=False)
+            __traceback_info__ = output
+            # We're going to fail the assertion if we get here, at least
+            # preserve the output in the traceback.
+
+        if exitcodes is None:
+            exitcodes = self.get_expected_returncodes_for_aborted_process()
+        self.assertIn(exc.exception.returncode, exitcodes)
+        return exc.exception

venv/Lib/site-packages/greenlet/tests/_test_extension.c

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+/* This is a set of functions used by test_extension_interface.py to test the
+ * Greenlet C API.
+ */
+
+#include "../greenlet.h"
+
+#ifndef Py_RETURN_NONE
+#    define Py_RETURN_NONE return Py_INCREF(Py_None), Py_None
+#endif
+
+#define TEST_MODULE_NAME "_test_extension"
+
+// CAUTION: MSVC is stupidly picky:
+//
+// "The compiler ignores, without warning, any __declspec keywords
+// placed after * or & and in front of the variable identifier in a
+// declaration."
+// (https://docs.microsoft.com/en-us/cpp/cpp/declspec?view=msvc-160)
+//
+// So pointer return types must be handled differently (because of the
+// trailing *), or you get inscrutable compiler warnings like "error
+// C2059: syntax error: ''"
+//
+// In C23, there is a standard syntax for attributes, and
+// GCC defines an attribute to use with this: [[gnu:noinline]].
+// In the future, this is expected to become standard.
+
+#if defined(__GNUC__) || defined(__clang__)
+/* We used to check for GCC 4+ or 3.4+, but those compilers are
+   laughably out of date. Just assume they support it. */
+#    define UNUSED(x) UNUSED_ ## x __attribute__((__unused__))
+#elif defined(_MSC_VER)
+/* We used to check for  && (_MSC_VER >= 1300) but that's also out of date. */
+#    define UNUSED(x) UNUSED_ ## x
+#endif
+
+static PyObject*
+test_switch(PyObject* UNUSED(self), PyObject* greenlet)
+{
+    PyObject* result = NULL;
+
+    if (greenlet == NULL || !PyGreenlet_Check(greenlet)) {
+        PyErr_BadArgument();
+        return NULL;
+    }
+
+    result = PyGreenlet_Switch((PyGreenlet*)greenlet, NULL, NULL);
+    if (result == NULL) {
+        if (!PyErr_Occurred()) {
+            PyErr_SetString(PyExc_AssertionError,
+                            "greenlet.switch() failed for some reason.");
+        }
+        return NULL;
+    }
+    return result;
+}
+
+static PyObject*
+test_switch_kwargs(PyObject* UNUSED(self), PyObject* args, PyObject* kwargs)
+{
+    PyGreenlet* g = NULL;
+    PyObject* result = NULL;
+
+    if (!PyArg_ParseTuple(args, "O!", &PyGreenlet_Type, &g)) {
+        return NULL;
+    }
+
+    if (g == NULL || !PyGreenlet_Check(g)) {
+        PyErr_BadArgument();
+        return NULL;
+    }
+
+    result = PyGreenlet_Switch(g, NULL, kwargs);
+    if (result == NULL) {
+        if (!PyErr_Occurred()) {
+            PyErr_SetString(PyExc_AssertionError,
+                            "greenlet.switch() failed for some reason.");
+        }
+        return NULL;
+    }
+    return result;
+}
+
+static PyObject*
+test_getcurrent(PyObject* UNUSED(self))
+{
+    PyGreenlet* g = PyGreenlet_GetCurrent();
+    if (g == NULL || !PyGreenlet_Check(g) || !PyGreenlet_ACTIVE(g)) {
+        PyErr_SetString(PyExc_AssertionError,
+                        "getcurrent() returned an invalid greenlet");
+        Py_XDECREF(g);
+        return NULL;
+    }
+    Py_DECREF(g);
+    Py_RETURN_NONE;
+}
+
+static PyObject*
+test_setparent(PyObject* UNUSED(self), PyObject* arg)
+{
+    PyGreenlet* current;
+    PyGreenlet* greenlet = NULL;
+    PyObject* switch_result = NULL;
+
+    if (arg == NULL || !PyGreenlet_Check(arg)) {
+        PyErr_BadArgument();
+        return NULL;
+    }
+    if ((current = PyGreenlet_GetCurrent()) == NULL) {
+        return NULL;
+    }
+    greenlet = (PyGreenlet*)arg;
+    if (PyGreenlet_SetParent(greenlet, current)) {
+        Py_DECREF(current);
+        return NULL;
+    }
+    Py_DECREF(current);
+
+    switch_result = PyGreenlet_Switch(greenlet, NULL, NULL);
+    if (switch_result == NULL) {
+        return NULL;
+    }
+    Py_DECREF(switch_result);
+    Py_RETURN_NONE;
+}
+
+static PyObject*
+test_new_greenlet(PyObject* UNUSED(self), PyObject* callable)
+{
+    PyObject* result = NULL;
+    PyGreenlet* greenlet = PyGreenlet_New(callable, NULL);
+
+    if (!greenlet) {
+        return NULL;
+    }
+
+    result = PyGreenlet_Switch(greenlet, NULL, NULL);
+    Py_CLEAR(greenlet);
+    if (result == NULL) {
+        return NULL;
+    }
+
+    return result;
+}
+
+static PyObject*
+test_raise_dead_greenlet(PyObject* UNUSED(self))
+{
+    PyErr_SetString(PyExc_GreenletExit, "test GreenletExit exception.");
+    return NULL;
+}
+
+static PyObject*
+test_raise_greenlet_error(PyObject* UNUSED(self))
+{
+    PyErr_SetString(PyExc_GreenletError, "test greenlet.error exception");
+    return NULL;
+}
+
+static PyObject*
+test_throw(PyObject* UNUSED(self), PyGreenlet* g)
+{
+    const char msg[] = "take that sucka!";
+    PyObject* msg_obj = Py_BuildValue("s", msg);
+    PyGreenlet_Throw(g, PyExc_ValueError, msg_obj, NULL);
+    Py_DECREF(msg_obj);
+    if (PyErr_Occurred()) {
+        return NULL;
+    }
+    Py_RETURN_NONE;
+}
+
+static PyObject*
+test_throw_exact(PyObject* UNUSED(self), PyObject* args)
+{
+    PyGreenlet* g = NULL;
+    PyObject* typ = NULL;
+    PyObject* val = NULL;
+    PyObject* tb = NULL;
+
+    if (!PyArg_ParseTuple(args, "OOOO:throw", &g, &typ, &val, &tb)) {
+        return NULL;
+    }
+
+    PyGreenlet_Throw(g, typ, val, tb);
+    if (PyErr_Occurred()) {
+        return NULL;
+    }
+    Py_RETURN_NONE;
+}
+
+static PyObject*
+getcurrent_api(PyObject* UNUSED(self))
+{
+    return (PyObject*)PyGreenlet_GetCurrent();
+
+}
+
+static PyMethodDef test_methods[] = {
+    {"test_switch",
+     (PyCFunction)test_switch,
+     METH_O,
+     "Switch to the provided greenlet sending provided arguments, and \n"
+     "return the results."},
+    {"test_switch_kwargs",
+     (PyCFunction)test_switch_kwargs,
+     METH_VARARGS | METH_KEYWORDS,
+     "Switch to the provided greenlet sending the provided keyword args."},
+    {"test_getcurrent",
+     (PyCFunction)test_getcurrent,
+     METH_NOARGS,
+     "Test PyGreenlet_GetCurrent()"},
+    {"test_setparent",
+     (PyCFunction)test_setparent,
+     METH_O,
+     "Se the parent of the provided greenlet and switch to it."},
+    {"test_new_greenlet",
+     (PyCFunction)test_new_greenlet,
+     METH_O,
+     "Test PyGreenlet_New()"},
+    {"test_raise_dead_greenlet",
+     (PyCFunction)test_raise_dead_greenlet,
+     METH_NOARGS,
+     "Just raise greenlet.GreenletExit"},
+    {"test_raise_greenlet_error",
+     (PyCFunction)test_raise_greenlet_error,
+     METH_NOARGS,
+     "Just raise greenlet.error"},
+    {"test_throw",
+     (PyCFunction)test_throw,
+     METH_O,
+     "Throw a ValueError at the provided greenlet"},
+    {"test_throw_exact",
+     (PyCFunction)test_throw_exact,
+     METH_VARARGS,
+     "Throw exactly the arguments given at the provided greenlet"},
+    {
+        "getcurrent_api",
+        (PyCFunction)getcurrent_api,
+        METH_NOARGS,
+        "Direct call to the PyGreenlet_GetCurrent API."},
+    {NULL, NULL, 0, NULL}
+};
+
+
+#define INITERROR return NULL
+
+static struct PyModuleDef moduledef = {PyModuleDef_HEAD_INIT,
+                                       TEST_MODULE_NAME,
+                                       NULL,
+                                       0,
+                                       test_methods,
+                                       NULL,
+                                       NULL,
+                                       NULL,
+                                       NULL};
+
+PyMODINIT_FUNC
+PyInit__test_extension(void)
+{
+    PyObject* module = NULL;
+    module = PyModule_Create(&moduledef);
+
+    if (module == NULL) {
+        return NULL;
+    }
+
+    PyGreenlet_Import();
+#ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(module, Py_MOD_GIL_NOT_USED);
+#endif
+    return module;
+}

venv/Lib/site-packages/greenlet/tests/_test_extension_cpp.cpp

@@ -0,0 +1,230 @@
+/* This is a set of functions used to test C++ exceptions are not
+ * broken during greenlet switches
+ */
+
+#include "../greenlet.h"
+#include "../greenlet_compiler_compat.hpp"
+#include <exception>
+#include <stdexcept>
+
+struct exception_t {
+    int depth;
+    exception_t(int depth) : depth(depth) {}
+};
+
+/* Functions are called via pointers to prevent inlining */
+static void (*p_test_exception_throw_nonstd)(int depth);
+static void (*p_test_exception_throw_std)();
+static PyObject* (*p_test_exception_switch_recurse)(int depth, int left);
+
+static void
+test_exception_throw_nonstd(int depth)
+{
+    throw exception_t(depth);
+}
+
+static void
+test_exception_throw_std()
+{
+    throw std::runtime_error("Thrown from an extension.");
+}
+
+static PyObject*
+test_exception_switch_recurse(int depth, int left)
+{
+    if (left > 0) {
+        return p_test_exception_switch_recurse(depth, left - 1);
+    }
+
+    PyObject* result = NULL;
+    PyGreenlet* self = PyGreenlet_GetCurrent();
+    if (self == NULL)
+        return NULL;
+
+    try {
+        if (PyGreenlet_Switch(PyGreenlet_GET_PARENT(self), NULL, NULL) == NULL) {
+            Py_DECREF(self);
+            return NULL;
+        }
+        p_test_exception_throw_nonstd(depth);
+        PyErr_SetString(PyExc_RuntimeError,
+                        "throwing C++ exception didn't work");
+    }
+    catch (const exception_t& e) {
+        if (e.depth != depth)
+            PyErr_SetString(PyExc_AssertionError, "depth mismatch");
+        else
+            result = PyLong_FromLong(depth);
+    }
+    catch (...) {
+        PyErr_SetString(PyExc_RuntimeError, "unexpected C++ exception");
+    }
+
+    Py_DECREF(self);
+    return result;
+}
+
+/* test_exception_switch(int depth)
+ * - recurses depth times
+ * - switches to parent inside try/catch block
+ * - throws an exception that (expected to be caught in the same function)
+ * - verifies depth matches (exceptions shouldn't be caught in other greenlets)
+ */
+static PyObject*
+test_exception_switch(PyObject* UNUSED(self), PyObject* args)
+{
+    int depth;
+    if (!PyArg_ParseTuple(args, "i", &depth))
+        return NULL;
+    return p_test_exception_switch_recurse(depth, depth);
+}
+
+
+static PyObject*
+py_test_exception_throw_nonstd(PyObject* UNUSED(self), PyObject* args)
+{
+    if (!PyArg_ParseTuple(args, ""))
+        return NULL;
+    p_test_exception_throw_nonstd(0);
+    PyErr_SetString(PyExc_AssertionError, "unreachable code running after throw");
+    return NULL;
+}
+
+static PyObject*
+py_test_exception_throw_std(PyObject* UNUSED(self), PyObject* args)
+{
+    if (!PyArg_ParseTuple(args, ""))
+        return NULL;
+    p_test_exception_throw_std();
+    PyErr_SetString(PyExc_AssertionError, "unreachable code running after throw");
+    return NULL;
+}
+
+static PyObject*
+py_test_call(PyObject* UNUSED(self), PyObject* arg)
+{
+    PyObject* noargs = PyTuple_New(0);
+    PyObject* ret = PyObject_Call(arg, noargs, nullptr);
+    Py_DECREF(noargs);
+    return ret;
+}
+
+
+
+/* test_exception_switch_and_do_in_g2(g2func)
+ * - creates new greenlet g2 to run g2func
+ * - switches to g2 inside try/catch block
+ * - verifies that no exception has been caught
+ *
+ * it is used together with test_exception_throw to verify that unhandled
+ * exceptions thrown in one greenlet do not propagate to other greenlet nor
+ * segfault the process.
+ */
+static PyObject*
+test_exception_switch_and_do_in_g2(PyObject* UNUSED(self), PyObject* args)
+{
+    PyObject* g2func = NULL;
+    PyObject* result = NULL;
+
+    if (!PyArg_ParseTuple(args, "O", &g2func))
+        return NULL;
+    PyGreenlet* g2 = PyGreenlet_New(g2func, NULL);
+    if (!g2) {
+        return NULL;
+    }
+
+    try {
+        result = PyGreenlet_Switch(g2, NULL, NULL);
+        if (!result) {
+            Py_DECREF(g2);
+            return NULL;
+        }
+    }
+    catch (const exception_t& e) {
+        /* if we are here the memory can be already corrupted and the program
+         * might crash before below py-level exception might become printed.
+         * -> print something to stderr to make it clear that we had entered
+         *    this catch block.
+         * See comments in inner_bootstrap()
+         */
+#if defined(WIN32) || defined(_WIN32)
+        fprintf(stderr, "C++ exception unexpectedly caught in g1\n");
+        PyErr_SetString(PyExc_AssertionError, "C++ exception unexpectedly caught in g1");
+        Py_XDECREF(result);
+        return NULL;
+#else
+        throw;
+#endif
+    }
+
+    Py_XDECREF(result);
+    Py_RETURN_NONE;
+}
+
+static PyMethodDef test_methods[] = {
+    {"test_exception_switch",
+     (PyCFunction)&test_exception_switch,
+     METH_VARARGS,
+     "Switches to parent twice, to test exception handling and greenlet "
+     "switching."},
+    {"test_exception_switch_and_do_in_g2",
+     (PyCFunction)&test_exception_switch_and_do_in_g2,
+     METH_VARARGS,
+     "Creates new greenlet g2 to run g2func and switches to it inside try/catch "
+     "block. Used together with test_exception_throw to verify that unhandled "
+     "C++ exceptions thrown in a greenlet doe not corrupt memory."},
+    {"test_exception_throw_nonstd",
+     (PyCFunction)&py_test_exception_throw_nonstd,
+     METH_VARARGS,
+     "Throws non-standard C++ exception. Calling this function directly should abort the process."
+    },
+    {"test_exception_throw_std",
+     (PyCFunction)&py_test_exception_throw_std,
+     METH_VARARGS,
+     "Throws standard C++ exception. Calling this function directly should abort the process."
+    },
+    {"test_call",
+     (PyCFunction)&py_test_call,
+     METH_O,
+     "Call the given callable. Unlike calling it directly, this creates a "
+     "new C-level stack frame, which may be helpful in testing."
+    },
+    {NULL, NULL, 0, NULL}
+};
+
+
+static struct PyModuleDef moduledef = {PyModuleDef_HEAD_INIT,
+                                       "greenlet.tests._test_extension_cpp",
+                                       NULL,
+                                       0,
+                                       test_methods,
+                                       NULL,
+                                       NULL,
+                                       NULL,
+                                       NULL};
+
+PyMODINIT_FUNC
+PyInit__test_extension_cpp(void)
+{
+    PyObject* module = NULL;
+
+    module = PyModule_Create(&moduledef);
+
+    if (module == NULL) {
+        return NULL;
+    }
+
+    PyGreenlet_Import();
+    if (_PyGreenlet_API == NULL) {
+        return NULL;
+    }
+
+    p_test_exception_throw_nonstd = test_exception_throw_nonstd;
+    p_test_exception_throw_std = test_exception_throw_std;
+    p_test_exception_switch_recurse = test_exception_switch_recurse;
+#ifdef Py_GIL_DISABLED
+    PyUnstable_Module_SetGIL(module, Py_MOD_GIL_NOT_USED);
+#endif
+
+    return module;
+}