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cpython/Programs/_testembed.c

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#ifndef Py_BUILD_CORE_MODULE
# define Py_BUILD_CORE_MODULE
#endif
/* Always enable assertion (even in release mode) */
#undef NDEBUG
#include <Python.h>
#include "pycore_initconfig.h" // _PyConfig_InitCompatConfig()
#include "pycore_runtime.h" // _PyRuntime
#include "pycore_pythread.h" // PyThread_start_joinable_thread()
#include "pycore_import.h" // _PyImport_FrozenBootstrap
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h> // putenv()
#include <wchar.h>
// These functions were removed from Python 3.13 API but are still exported
// for the stable ABI. We want to test them in this program.
extern void PySys_AddWarnOption(const wchar_t *s);
extern void PySys_AddXOption(const wchar_t *s);
extern void Py_SetPath(const wchar_t *path);
int main_argc;
char **main_argv;
/*********************************************************
* Embedded interpreter tests that need a custom exe
*
* Executed via Lib/test/test_embed.py
*********************************************************/
// Use to display the usage
#define PROGRAM "test_embed"
/* Use path starting with "./" avoids a search along the PATH */
#define PROGRAM_NAME L"./_testembed"
#define PROGRAM_NAME_UTF8 "./_testembed"
#define INIT_LOOPS 4
// Ignore Py_DEPRECATED() compiler warnings: deprecated functions are
// tested on purpose here.
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
static void error(const char *msg)
{
fprintf(stderr, "ERROR: %s\n", msg);
fflush(stderr);
}
static void config_set_string(PyConfig *config, wchar_t **config_str, const wchar_t *str)
{
PyStatus status = PyConfig_SetString(config, config_str, str);
if (PyStatus_Exception(status)) {
PyConfig_Clear(config);
Py_ExitStatusException(status);
}
}
static void config_set_program_name(PyConfig *config)
{
const wchar_t *program_name = PROGRAM_NAME;
config_set_string(config, &config->program_name, program_name);
}
static void init_from_config_clear(PyConfig *config)
{
PyStatus status = Py_InitializeFromConfig(config);
PyConfig_Clear(config);
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
}
static void _testembed_Py_InitializeFromConfig(void)
{
PyConfig config;
_PyConfig_InitCompatConfig(&config);
config_set_program_name(&config);
init_from_config_clear(&config);
}
static void _testembed_Py_Initialize(void)
{
Py_SetProgramName(PROGRAM_NAME);
Py_Initialize();
}
static int test_import_in_subinterpreters(void)
{
_testembed_Py_InitializeFromConfig();
PyThreadState_Swap(Py_NewInterpreter());
return PyRun_SimpleString("import readline"); // gh-124160
}
/*****************************************************
* Test repeated initialisation and subinterpreters
*****************************************************/
static void print_subinterp(void)
{
/* Output information about the interpreter in the format
expected in Lib/test/test_capi.py (test_subinterps). */
PyThreadState *ts = PyThreadState_Get();
PyInterpreterState *interp = ts->interp;
int64_t id = PyInterpreterState_GetID(interp);
printf("interp %" PRId64 " <0x%" PRIXPTR ">, thread state <0x%" PRIXPTR ">: ",
id, (uintptr_t)interp, (uintptr_t)ts);
fflush(stdout);
PyRun_SimpleString(
"import sys;"
"print('id(modules) =', id(sys.modules));"
"sys.stdout.flush()"
);
}
static int test_repeated_init_and_subinterpreters(void)
{
PyThreadState *mainstate, *substate;
PyGILState_STATE gilstate;
for (int i=1; i <= INIT_LOOPS; i++) {
printf("--- Pass %d ---\n", i);
_testembed_Py_InitializeFromConfig();
mainstate = PyThreadState_Get();
PyEval_ReleaseThread(mainstate);
gilstate = PyGILState_Ensure();
print_subinterp();
PyThreadState_Swap(NULL);
for (int j=0; j<3; j++) {
substate = Py_NewInterpreter();
print_subinterp();
Py_EndInterpreter(substate);
}
PyThreadState_Swap(mainstate);
print_subinterp();
PyGILState_Release(gilstate);
PyEval_RestoreThread(mainstate);
Py_Finalize();
}
return 0;
}
#define EMBEDDED_EXT_NAME "embedded_ext"
static PyModuleDef embedded_ext = {
PyModuleDef_HEAD_INIT,
.m_name = EMBEDDED_EXT_NAME,
.m_size = 0,
};
static PyObject*
PyInit_embedded_ext(void)
{
return PyModule_Create(&embedded_ext);
}
/****************************************************************************
* Call Py_Initialize()/Py_Finalize() multiple times and execute Python code
***************************************************************************/
// Used by bpo-46417 to test that structseq types used by the sys module are
// cleared properly and initialized again properly when Python is finalized
// multiple times.
static int test_repeated_init_exec(void)
{
if (main_argc < 3) {
fprintf(stderr,
"usage: %s test_repeated_init_exec CODE ...\n", PROGRAM);
exit(1);
}
const char *code = main_argv[2];
int loops = main_argc > 3
? main_argc - 2
: INIT_LOOPS;
for (int i=0; i < loops; i++) {
fprintf(stderr, "--- Loop #%d ---\n", i+1);
fflush(stderr);
if (main_argc > 3) {
code = main_argv[i+2];
}
_testembed_Py_InitializeFromConfig();
int err = PyRun_SimpleString(code);
Py_Finalize();
if (err) {
return 1;
}
}
return 0;
}
/****************************************************************************
* Test the Py_Initialize(Ex) convenience/compatibility wrappers
***************************************************************************/
// This is here to help ensure there are no wrapper resource leaks (gh-96853)
static int test_repeated_simple_init(void)
{
for (int i=1; i <= INIT_LOOPS; i++) {
fprintf(stderr, "--- Loop #%d ---\n", i);
fflush(stderr);
_testembed_Py_Initialize();
Py_Finalize();
printf("Finalized\n"); // Give test_embed some output to check
}
return 0;
}
/*****************************************************
* Test forcing a particular IO encoding
*****************************************************/
static void check_stdio_details(const wchar_t *encoding, const wchar_t *errors)
{
/* Output info for the test case to check */
if (encoding) {
printf("Expected encoding: %ls\n", encoding);
} else {
printf("Expected encoding: default\n");
}
if (errors) {
printf("Expected errors: %ls\n", errors);
} else {
printf("Expected errors: default\n");
}
fflush(stdout);
PyConfig config;
_PyConfig_InitCompatConfig(&config);
/* Force the given IO encoding */
if (encoding) {
config_set_string(&config, &config.stdio_encoding, encoding);
}
if (errors) {
config_set_string(&config, &config.stdio_errors, errors);
}
#ifdef MS_WINDOWS
// gh-106659: On Windows, don't use _io._WindowsConsoleIO which always
// announce UTF-8 for sys.stdin.encoding.
config.legacy_windows_stdio = 1;
#endif
config_set_program_name(&config);
init_from_config_clear(&config);
PyRun_SimpleString(
"import sys;"
"print('stdin: {0.encoding}:{0.errors}'.format(sys.stdin));"
"print('stdout: {0.encoding}:{0.errors}'.format(sys.stdout));"
"print('stderr: {0.encoding}:{0.errors}'.format(sys.stderr));"
"sys.stdout.flush()"
);
Py_Finalize();
}
static int test_forced_io_encoding(void)
{
/* Check various combinations */
printf("--- Use defaults ---\n");
check_stdio_details(NULL, NULL);
printf("--- Set errors only ---\n");
check_stdio_details(NULL, L"ignore");
printf("--- Set encoding only ---\n");
check_stdio_details(L"iso8859-1", NULL);
printf("--- Set encoding and errors ---\n");
check_stdio_details(L"iso8859-1", L"replace");
return 0;
}
/*********************************************************
* Test parts of the C-API that work before initialization
*********************************************************/
/* The pre-initialization tests tend to break by segfaulting, so explicitly
* flushed progress messages make the broken API easier to find when they fail.
*/
#define _Py_EMBED_PREINIT_CHECK(msg) \
do {printf(msg); fflush(stdout);} while (0);
static int test_pre_initialization_api(void)
{
/* the test doesn't support custom memory allocators */
putenv("PYTHONMALLOC=");
/* Leading "./" ensures getpath.c can still find the standard library */
_Py_EMBED_PREINIT_CHECK("Checking Py_DecodeLocale\n");
wchar_t *program = Py_DecodeLocale("./spam", NULL);
if (program == NULL) {
fprintf(stderr, "Fatal error: cannot decode program name\n");
return 1;
}
_Py_EMBED_PREINIT_CHECK("Checking Py_SetProgramName\n");
Py_SetProgramName(program);
_Py_EMBED_PREINIT_CHECK("Initializing interpreter\n");
Py_Initialize();
_Py_EMBED_PREINIT_CHECK("Check sys module contents\n");
PyRun_SimpleString("import sys; "
"print('sys.executable:', sys.executable)");
_Py_EMBED_PREINIT_CHECK("Finalizing interpreter\n");
Py_Finalize();
_Py_EMBED_PREINIT_CHECK("Freeing memory allocated by Py_DecodeLocale\n");
PyMem_RawFree(program);
return 0;
}
/* bpo-33042: Ensure embedding apps can predefine sys module options */
static int test_pre_initialization_sys_options(void)
{
/* We allocate a couple of the options dynamically, and then delete
* them before calling Py_Initialize. This ensures the interpreter isn't
* relying on the caller to keep the passed in strings alive.
*/
const wchar_t *static_warnoption = L"once";
const wchar_t *static_xoption = L"also_not_an_option=2";
size_t warnoption_len = wcslen(static_warnoption);
size_t xoption_len = wcslen(static_xoption);
wchar_t *dynamic_once_warnoption = \
(wchar_t *) calloc(warnoption_len+1, sizeof(wchar_t));
wchar_t *dynamic_xoption = \
(wchar_t *) calloc(xoption_len+1, sizeof(wchar_t));
wcsncpy(dynamic_once_warnoption, static_warnoption, warnoption_len+1);
wcsncpy(dynamic_xoption, static_xoption, xoption_len+1);
_Py_EMBED_PREINIT_CHECK("Checking PySys_AddWarnOption\n");
PySys_AddWarnOption(L"default");
_Py_EMBED_PREINIT_CHECK("Checking PySys_ResetWarnOptions\n");
PySys_ResetWarnOptions();
_Py_EMBED_PREINIT_CHECK("Checking PySys_AddWarnOption linked list\n");
PySys_AddWarnOption(dynamic_once_warnoption);
PySys_AddWarnOption(L"module");
PySys_AddWarnOption(L"default");
_Py_EMBED_PREINIT_CHECK("Checking PySys_AddXOption\n");
PySys_AddXOption(L"not_an_option=1");
PySys_AddXOption(dynamic_xoption);
/* Delete the dynamic options early */
free(dynamic_once_warnoption);
dynamic_once_warnoption = NULL;
free(dynamic_xoption);
dynamic_xoption = NULL;
_Py_EMBED_PREINIT_CHECK("Initializing interpreter\n");
_testembed_Py_InitializeFromConfig();
_Py_EMBED_PREINIT_CHECK("Check sys module contents\n");
PyRun_SimpleString("import sys; "
"print('sys.warnoptions:', sys.warnoptions); "
"print('sys._xoptions:', sys._xoptions); "
"warnings = sys.modules['warnings']; "
"latest_filters = [f[0] for f in warnings.filters[:3]]; "
"print('warnings.filters[:3]:', latest_filters)");
_Py_EMBED_PREINIT_CHECK("Finalizing interpreter\n");
Py_Finalize();
return 0;
}
/* bpo-20891: Avoid race condition when initialising the GIL */
static void bpo20891_thread(void *lockp)
{
PyThread_type_lock lock = *((PyThread_type_lock*)lockp);
PyGILState_STATE state = PyGILState_Ensure();
if (!PyGILState_Check()) {
error("PyGILState_Check failed!");
abort();
}
PyGILState_Release(state);
PyThread_release_lock(lock);
}
static int test_bpo20891(void)
{
/* the test doesn't support custom memory allocators */
putenv("PYTHONMALLOC=");
/* bpo-20891: Calling PyGILState_Ensure in a non-Python thread must not
crash. */
PyThread_type_lock lock = PyThread_allocate_lock();
if (!lock) {
error("PyThread_allocate_lock failed!");
return 1;
}
_testembed_Py_InitializeFromConfig();
unsigned long thrd = PyThread_start_new_thread(bpo20891_thread, &lock);
if (thrd == PYTHREAD_INVALID_THREAD_ID) {
error("PyThread_start_new_thread failed!");
return 1;
}
PyThread_acquire_lock(lock, WAIT_LOCK);
Py_BEGIN_ALLOW_THREADS
/* wait until the thread exit */
PyThread_acquire_lock(lock, WAIT_LOCK);
Py_END_ALLOW_THREADS
PyThread_free_lock(lock);
Py_Finalize();
return 0;
}
static int test_initialize_twice(void)
{
_testembed_Py_InitializeFromConfig();
/* bpo-33932: Calling Py_Initialize() twice should do nothing
* (and not crash!). */
Py_Initialize();
Py_Finalize();
return 0;
}
static int test_initialize_pymain(void)
{
wchar_t *argv[] = {L"PYTHON", L"-c",
(L"import sys; "
L"print(f'Py_Main() after Py_Initialize: "
L"sys.argv={sys.argv}')"),
L"arg2"};
_testembed_Py_InitializeFromConfig();
/* bpo-34008: Calling Py_Main() after Py_Initialize() must not crash */
Py_Main(Py_ARRAY_LENGTH(argv), argv);
Py_Finalize();
return 0;
}
static void
dump_config(void)
{
(void) PyRun_SimpleStringFlags(
"import _testinternalcapi, json; "
"print(json.dumps(_testinternalcapi.get_configs()))",
0);
}
static int test_init_initialize_config(void)
{
_testembed_Py_InitializeFromConfig();
dump_config();
Py_Finalize();
return 0;
}
static void config_set_argv(PyConfig *config, Py_ssize_t argc, wchar_t * const *argv)
{
PyStatus status = PyConfig_SetArgv(config, argc, argv);
if (PyStatus_Exception(status)) {
PyConfig_Clear(config);
Py_ExitStatusException(status);
}
}
static void
config_set_wide_string_list(PyConfig *config, PyWideStringList *list,
Py_ssize_t length, wchar_t **items)
{
PyStatus status = PyConfig_SetWideStringList(config, list, length, items);
if (PyStatus_Exception(status)) {
PyConfig_Clear(config);
Py_ExitStatusException(status);
}
}
static int check_init_compat_config(int preinit)
{
PyStatus status;
if (preinit) {
PyPreConfig preconfig;
_PyPreConfig_InitCompatConfig(&preconfig);
status = Py_PreInitialize(&preconfig);
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
}
PyConfig config;
_PyConfig_InitCompatConfig(&config);
config_set_program_name(&config);
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
static int test_preinit_compat_config(void)
{
return check_init_compat_config(1);
}
static int test_init_compat_config(void)
{
return check_init_compat_config(0);
}
static int test_init_global_config(void)
{
/* FIXME: test Py_IgnoreEnvironmentFlag */
putenv("PYTHONUTF8=0");
Py_UTF8Mode = 1;
/* Test initialization from global configuration variables (Py_xxx) */
Py_SetProgramName(L"./globalvar");
/* Py_IsolatedFlag is not tested */
Py_NoSiteFlag = 1;
Py_BytesWarningFlag = 1;
putenv("PYTHONINSPECT=");
Py_InspectFlag = 1;
putenv("PYTHONOPTIMIZE=0");
Py_InteractiveFlag = 1;
putenv("PYTHONDEBUG=0");
Py_OptimizeFlag = 2;
/* Py_DebugFlag is not tested */
putenv("PYTHONDONTWRITEBYTECODE=");
Py_DontWriteBytecodeFlag = 1;
putenv("PYTHONVERBOSE=0");
Py_VerboseFlag = 1;
Py_QuietFlag = 1;
Py_NoUserSiteDirectory = 1;
putenv("PYTHONUNBUFFERED=");
Py_UnbufferedStdioFlag = 1;
Py_FrozenFlag = 1;
/* FIXME: test Py_LegacyWindowsFSEncodingFlag */
/* FIXME: test Py_LegacyWindowsStdioFlag */
Py_Initialize();
dump_config();
Py_Finalize();
return 0;
}
static int test_init_from_config(void)
{
PyPreConfig preconfig;
_PyPreConfig_InitCompatConfig(&preconfig);
putenv("PYTHONMALLOC=malloc_debug");
#ifndef Py_GIL_DISABLED
preconfig.allocator = PYMEM_ALLOCATOR_MALLOC;
#else
preconfig.allocator = PYMEM_ALLOCATOR_MIMALLOC;
#endif
putenv("PYTHONUTF8=0");
Py_UTF8Mode = 0;
preconfig.utf8_mode = 1;
PyStatus status = Py_PreInitialize(&preconfig);
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
PyConfig config;
_PyConfig_InitCompatConfig(&config);
config.install_signal_handlers = 0;
/* FIXME: test use_environment */
putenv("PYTHONHASHSEED=42");
config.use_hash_seed = 1;
config.hash_seed = 123;
/* dev_mode=1 is tested in test_init_dev_mode() */
putenv("PYTHONFAULTHANDLER=");
config.faulthandler = 1;
putenv("PYTHONTRACEMALLOC=0");
config.tracemalloc = 2;
putenv("PYTHONPROFILEIMPORTTIME=0");
config.import_time = 1;
putenv("PYTHONNODEBUGRANGES=0");
config.code_debug_ranges = 0;
config.show_ref_count = 1;
/* FIXME: test dump_refs: bpo-34223 */
putenv("PYTHONMALLOCSTATS=0");
config.malloc_stats = 1;
putenv("PYTHONPYCACHEPREFIX=env_pycache_prefix");
config_set_string(&config, &config.pycache_prefix, L"conf_pycache_prefix");
Py_SetProgramName(L"./globalvar");
config_set_string(&config, &config.program_name, L"./conf_program_name");
wchar_t* argv[] = {
L"python3",
L"-W",
L"cmdline_warnoption",
L"-X",
L"cmdline_xoption",
L"-c",
L"pass",
L"arg2",
};
config_set_argv(&config, Py_ARRAY_LENGTH(argv), argv);
config.parse_argv = 1;
wchar_t* xoptions[3] = {
L"config_xoption1=3",
L"config_xoption2=",
L"config_xoption3",
};
config_set_wide_string_list(&config, &config.xoptions,
Py_ARRAY_LENGTH(xoptions), xoptions);
wchar_t* warnoptions[1] = {
L"config_warnoption",
};
config_set_wide_string_list(&config, &config.warnoptions,
Py_ARRAY_LENGTH(warnoptions), warnoptions);
/* FIXME: test pythonpath_env */
/* FIXME: test home */
/* FIXME: test path config: module_search_path .. dll_path */
putenv("PYTHONPLATLIBDIR=env_platlibdir");
config_set_string(&config, &config.platlibdir, L"my_platlibdir");
putenv("PYTHONVERBOSE=0");
Py_VerboseFlag = 0;
config.verbose = 1;
Py_NoSiteFlag = 0;
config.site_import = 0;
Py_BytesWarningFlag = 0;
config.bytes_warning = 1;
putenv("PYTHONINSPECT=");
Py_InspectFlag = 0;
config.inspect = 1;
Py_InteractiveFlag = 0;
config.interactive = 1;
putenv("PYTHONOPTIMIZE=0");
Py_OptimizeFlag = 1;
config.optimization_level = 2;
/* FIXME: test parser_debug */
putenv("PYTHONDONTWRITEBYTECODE=");
Py_DontWriteBytecodeFlag = 0;
config.write_bytecode = 0;
Py_QuietFlag = 0;
config.quiet = 1;
config.configure_c_stdio = 1;
putenv("PYTHONUNBUFFERED=");
Py_UnbufferedStdioFlag = 0;
config.buffered_stdio = 0;
putenv("PYTHONIOENCODING=cp424");
config_set_string(&config, &config.stdio_encoding, L"iso8859-1");
config_set_string(&config, &config.stdio_errors, L"replace");
putenv("PYTHONNOUSERSITE=");
Py_NoUserSiteDirectory = 0;
config.user_site_directory = 0;
config_set_string(&config, &config.check_hash_pycs_mode, L"always");
Py_FrozenFlag = 0;
config.pathconfig_warnings = 0;
config.safe_path = 1;
#ifdef Py_STATS
putenv("PYTHONSTATS=");
config._pystats = 1;
#endif
putenv("PYTHONINTMAXSTRDIGITS=6666");
config.int_max_str_digits = 31337;
config.cpu_count = 4321;
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
static int check_init_parse_argv(int parse_argv)
{
PyConfig config;
PyConfig_InitPythonConfig(&config);
config.parse_argv = parse_argv;
wchar_t* argv[] = {
L"./argv0",
L"-E",
L"-c",
L"pass",
L"arg1",
L"-v",
L"arg3",
};
config_set_argv(&config, Py_ARRAY_LENGTH(argv), argv);
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
static int test_init_parse_argv(void)
{
return check_init_parse_argv(1);
}
static int test_init_dont_parse_argv(void)
{
return check_init_parse_argv(0);
}
static void set_most_env_vars(void)
{
putenv("PYTHONHASHSEED=42");
#ifndef Py_GIL_DISABLED
putenv("PYTHONMALLOC=malloc");
#else
putenv("PYTHONMALLOC=mimalloc");
#endif
putenv("PYTHONTRACEMALLOC=2");
putenv("PYTHONPROFILEIMPORTTIME=1");
putenv("PYTHONNODEBUGRANGES=1");
putenv("PYTHONMALLOCSTATS=1");
putenv("PYTHONUTF8=1");
putenv("PYTHONVERBOSE=1");
putenv("PYTHONINSPECT=1");
putenv("PYTHONOPTIMIZE=2");
putenv("PYTHONDONTWRITEBYTECODE=1");
putenv("PYTHONUNBUFFERED=1");
putenv("PYTHONPYCACHEPREFIX=env_pycache_prefix");
putenv("PYTHONNOUSERSITE=1");
putenv("PYTHONFAULTHANDLER=1");
putenv("PYTHONIOENCODING=iso8859-1:replace");
putenv("PYTHONPLATLIBDIR=env_platlibdir");
putenv("PYTHONSAFEPATH=1");
putenv("PYTHONINTMAXSTRDIGITS=4567");
#ifdef Py_STATS
putenv("PYTHONSTATS=1");
#endif
putenv("PYTHONPERFSUPPORT=1");
}
static void set_all_env_vars(void)
{
set_most_env_vars();
putenv("PYTHONWARNINGS=EnvVar");
putenv("PYTHONPATH=/my/path");
}
static int test_init_compat_env(void)
{
/* Test initialization from environment variables */
Py_IgnoreEnvironmentFlag = 0;
set_all_env_vars();
_testembed_Py_InitializeFromConfig();
dump_config();
Py_Finalize();
return 0;
}
static int test_init_python_env(void)
{
set_all_env_vars();
PyConfig config;
PyConfig_InitPythonConfig(&config);
config_set_program_name(&config);
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
static void set_all_env_vars_dev_mode(void)
{
putenv("PYTHONMALLOC=");
putenv("PYTHONFAULTHANDLER=");
putenv("PYTHONDEVMODE=1");
}
static int test_init_env_dev_mode(void)
{
/* Test initialization from environment variables */
Py_IgnoreEnvironmentFlag = 0;
set_all_env_vars_dev_mode();
_testembed_Py_InitializeFromConfig();
dump_config();
Py_Finalize();
return 0;
}
static int test_init_env_dev_mode_alloc(void)
{
/* Test initialization from environment variables */
Py_IgnoreEnvironmentFlag = 0;
set_all_env_vars_dev_mode();
#ifndef Py_GIL_DISABLED
putenv("PYTHONMALLOC=malloc");
#else
putenv("PYTHONMALLOC=mimalloc");
#endif
_testembed_Py_InitializeFromConfig();
dump_config();
Py_Finalize();
return 0;
}
static int test_init_isolated_flag(void)
{
/* Test PyConfig.isolated=1 */
PyConfig config;
PyConfig_InitPythonConfig(&config);
Py_IsolatedFlag = 0;
config.isolated = 1;
// These options are set to 1 by isolated=1
config.safe_path = 0;
config.use_environment = 1;
config.user_site_directory = 1;
config_set_program_name(&config);
set_all_env_vars();
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
/* PyPreConfig.isolated=1, PyConfig.isolated=0 */
static int test_preinit_isolated1(void)
{
PyPreConfig preconfig;
_PyPreConfig_InitCompatConfig(&preconfig);
preconfig.isolated = 1;
PyStatus status = Py_PreInitialize(&preconfig);
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
PyConfig config;
_PyConfig_InitCompatConfig(&config);
config_set_program_name(&config);
set_all_env_vars();
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
/* PyPreConfig.isolated=0, PyConfig.isolated=1 */
static int test_preinit_isolated2(void)
{
PyPreConfig preconfig;
_PyPreConfig_InitCompatConfig(&preconfig);
preconfig.isolated = 0;
PyStatus status = Py_PreInitialize(&preconfig);
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
/* Test PyConfig.isolated=1 */
PyConfig config;
_PyConfig_InitCompatConfig(&config);
Py_IsolatedFlag = 0;
config.isolated = 1;
config_set_program_name(&config);
set_all_env_vars();
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
static int test_preinit_dont_parse_argv(void)
{
PyPreConfig preconfig;
PyPreConfig_InitIsolatedConfig(&preconfig);
preconfig.isolated = 0;
/* -X dev must be ignored by isolated preconfiguration */
wchar_t *argv[] = {L"python3",
L"-E",
L"-I",
L"-P",
L"-X", L"dev",
L"-X", L"utf8",
L"script.py"};
PyStatus status = Py_PreInitializeFromArgs(&preconfig,
Py_ARRAY_LENGTH(argv), argv);
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
PyConfig config;
PyConfig_InitIsolatedConfig(&config);
config.isolated = 0;
/* Pre-initialize implicitly using argv: make sure that -X dev
is used to configure the allocation in preinitialization */
config_set_argv(&config, Py_ARRAY_LENGTH(argv), argv);
config_set_program_name(&config);
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
static int test_preinit_parse_argv(void)
{
PyConfig config;
PyConfig_InitPythonConfig(&config);
/* Pre-initialize implicitly using argv: make sure that -X dev
is used to configure the allocation in preinitialization */
wchar_t *argv[] = {L"python3", L"-X", L"dev", L"-P", L"script.py"};
config_set_argv(&config, Py_ARRAY_LENGTH(argv), argv);
config_set_program_name(&config);
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
static void set_all_global_config_variables(void)
{
Py_IsolatedFlag = 0;
Py_IgnoreEnvironmentFlag = 0;
Py_BytesWarningFlag = 2;
Py_InspectFlag = 1;
Py_InteractiveFlag = 1;
Py_OptimizeFlag = 1;
Py_DebugFlag = 1;
Py_VerboseFlag = 1;
Py_QuietFlag = 1;
Py_FrozenFlag = 0;
Py_UnbufferedStdioFlag = 1;
Py_NoSiteFlag = 1;
Py_DontWriteBytecodeFlag = 1;
Py_NoUserSiteDirectory = 1;
#ifdef MS_WINDOWS
Py_LegacyWindowsStdioFlag = 1;
#endif
}
static int check_preinit_isolated_config(int preinit)
{
PyStatus status;
PyPreConfig *rt_preconfig;
/* environment variables must be ignored */
set_all_env_vars();
/* global configuration variables must be ignored */
set_all_global_config_variables();
if (preinit) {
PyPreConfig preconfig;
PyPreConfig_InitIsolatedConfig(&preconfig);
status = Py_PreInitialize(&preconfig);
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
rt_preconfig = &_PyRuntime.preconfig;
assert(rt_preconfig->isolated == 1);
assert(rt_preconfig->use_environment == 0);
}
PyConfig config;
PyConfig_InitIsolatedConfig(&config);
config_set_program_name(&config);
init_from_config_clear(&config);
rt_preconfig = &_PyRuntime.preconfig;
assert(rt_preconfig->isolated == 1);
assert(rt_preconfig->use_environment == 0);
dump_config();
Py_Finalize();
return 0;
}
static int test_preinit_isolated_config(void)
{
return check_preinit_isolated_config(1);
}
static int test_init_isolated_config(void)
{
return check_preinit_isolated_config(0);
}
static int check_init_python_config(int preinit)
{
/* global configuration variables must be ignored */
set_all_global_config_variables();
Py_IsolatedFlag = 1;
Py_IgnoreEnvironmentFlag = 1;
Py_FrozenFlag = 1;
Py_UnbufferedStdioFlag = 1;
Py_NoSiteFlag = 1;
Py_DontWriteBytecodeFlag = 1;
Py_NoUserSiteDirectory = 1;
#ifdef MS_WINDOWS
Py_LegacyWindowsStdioFlag = 1;
#endif
if (preinit) {
PyPreConfig preconfig;
PyPreConfig_InitPythonConfig(&preconfig);
PyStatus status = Py_PreInitialize(&preconfig);
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
}
PyConfig config;
PyConfig_InitPythonConfig(&config);
config_set_program_name(&config);
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
static int test_preinit_python_config(void)
{
return check_init_python_config(1);
}
static int test_init_python_config(void)
{
return check_init_python_config(0);
}
static int test_init_dont_configure_locale(void)
{
PyPreConfig preconfig;
PyPreConfig_InitPythonConfig(&preconfig);
preconfig.configure_locale = 0;
preconfig.coerce_c_locale = 1;
preconfig.coerce_c_locale_warn = 1;
PyStatus status = Py_PreInitialize(&preconfig);
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
PyConfig config;
PyConfig_InitPythonConfig(&config);
config_set_program_name(&config);
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
static int test_init_dev_mode(void)
{
PyConfig config;
PyConfig_InitPythonConfig(&config);
putenv("PYTHONFAULTHANDLER=");
putenv("PYTHONMALLOC=");
config.dev_mode = 1;
config_set_program_name(&config);
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
static PyObject *_open_code_hook(PyObject *path, void *data)
{
if (PyUnicode_CompareWithASCIIString(path, "$$test-filename") == 0) {
return PyLong_FromVoidPtr(data);
}
PyObject *io = PyImport_ImportModule("_io");
if (!io) {
return NULL;
}
return PyObject_CallMethod(io, "open", "Os", path, "rb");
}
static int test_open_code_hook(void)
{
int result = 0;
/* Provide a hook */
result = PyFile_SetOpenCodeHook(_open_code_hook, &result);
if (result) {
printf("Failed to set hook\n");
return 1;
}
/* A second hook should fail */
result = PyFile_SetOpenCodeHook(_open_code_hook, &result);
if (!result) {
printf("Should have failed to set second hook\n");
return 2;
}
Py_IgnoreEnvironmentFlag = 0;
_testembed_Py_InitializeFromConfig();
result = 0;
PyObject *r = PyFile_OpenCode("$$test-filename");
if (!r) {
PyErr_Print();
result = 3;
} else {
void *cmp = PyLong_AsVoidPtr(r);
Py_DECREF(r);
if (cmp != &result) {
printf("Did not get expected result from hook\n");
result = 4;
}
}
if (!result) {
PyObject *io = PyImport_ImportModule("_io");
PyObject *r = io
? PyObject_CallMethod(io, "open_code", "s", "$$test-filename")
: NULL;
if (!r) {
PyErr_Print();
result = 5;
} else {
void *cmp = PyLong_AsVoidPtr(r);
Py_DECREF(r);
if (cmp != &result) {
printf("Did not get expected result from hook\n");
result = 6;
}
}
Py_XDECREF(io);
}
Py_Finalize();
return result;
}
static int _audit_hook_clear_count = 0;
static int _audit_hook(const char *event, PyObject *args, void *userdata)
{
assert(args && PyTuple_CheckExact(args));
if (strcmp(event, "_testembed.raise") == 0) {
PyErr_SetString(PyExc_RuntimeError, "Intentional error");
return -1;
} else if (strcmp(event, "_testembed.set") == 0) {
if (!PyArg_ParseTuple(args, "n", userdata)) {
return -1;
}
return 0;
} else if (strcmp(event, "cpython._PySys_ClearAuditHooks") == 0) {
_audit_hook_clear_count += 1;
}
return 0;
}
static int _test_audit(Py_ssize_t setValue)
{
Py_ssize_t sawSet = 0;
Py_IgnoreEnvironmentFlag = 0;
PySys_AddAuditHook(_audit_hook, &sawSet);
_testembed_Py_InitializeFromConfig();
if (PySys_Audit("_testembed.raise", NULL) == 0) {
printf("No error raised");
return 1;
}
if (PySys_Audit("_testembed.nop", NULL) != 0) {
printf("Nop event failed");
/* Exception from above may still remain */
PyErr_Clear();
return 2;
}
if (!PyErr_Occurred()) {
printf("Exception not preserved");
return 3;
}
PyErr_Clear();
if (PySys_Audit("_testembed.set", "n", setValue) != 0) {
PyErr_Print();
printf("Set event failed");
return 4;
}
if (PyErr_Occurred()) {
printf("Exception raised");
return 5;
}
if (sawSet != 42) {
printf("Failed to see *userData change\n");
return 6;
}
return 0;
}
static int test_audit(void)
{
int result = _test_audit(42);
Py_Finalize();
if (_audit_hook_clear_count != 1) {
return 0x1000 | _audit_hook_clear_count;
}
return result;
}
static int test_audit_tuple(void)
{
#define ASSERT(TEST, EXITCODE) \
if (!(TEST)) { \
printf("ERROR test failed at %s:%i\n", __FILE__, __LINE__); \
return (EXITCODE); \
}
Py_ssize_t sawSet = 0;
// we need at least one hook, otherwise code checking for
// PySys_AuditTuple() is skipped.
PySys_AddAuditHook(_audit_hook, &sawSet);
_testembed_Py_InitializeFromConfig();
ASSERT(!PyErr_Occurred(), 0);
// pass Python tuple object
PyObject *tuple = Py_BuildValue("(i)", 444);
if (tuple == NULL) {
goto error;
}
ASSERT(PySys_AuditTuple("_testembed.set", tuple) == 0, 10);
ASSERT(!PyErr_Occurred(), 11);
ASSERT(sawSet == 444, 12);
Py_DECREF(tuple);
// pass Python int object
PyObject *int_arg = PyLong_FromLong(555);
if (int_arg == NULL) {
goto error;
}
ASSERT(PySys_AuditTuple("_testembed.set", int_arg) == -1, 20);
ASSERT(PyErr_ExceptionMatches(PyExc_TypeError), 21);
PyErr_Clear();
Py_DECREF(int_arg);
// NULL is accepted and means "no arguments"
ASSERT(PySys_AuditTuple("_testembed.test_audit_tuple", NULL) == 0, 30);
ASSERT(!PyErr_Occurred(), 31);
Py_Finalize();
return 0;
error:
PyErr_Print();
return 1;
#undef ASSERT
}
static volatile int _audit_subinterpreter_interpreter_count = 0;
static int _audit_subinterpreter_hook(const char *event, PyObject *args, void *userdata)
{
printf("%s\n", event);
if (strcmp(event, "cpython.PyInterpreterState_New") == 0) {
_audit_subinterpreter_interpreter_count += 1;
}
return 0;
}
static int test_audit_subinterpreter(void)
{
Py_IgnoreEnvironmentFlag = 0;
PySys_AddAuditHook(_audit_subinterpreter_hook, NULL);
_testembed_Py_InitializeFromConfig();
Py_NewInterpreter();
Py_NewInterpreter();
Py_NewInterpreter();
Py_Finalize();
switch (_audit_subinterpreter_interpreter_count) {
case 3: return 0;
case 0: return -1;
default: return _audit_subinterpreter_interpreter_count;
}
}
typedef struct {
const char* expected;
int exit;
} AuditRunCommandTest;
static int _audit_hook_run(const char *eventName, PyObject *args, void *userData)
{
AuditRunCommandTest *test = (AuditRunCommandTest*)userData;
if (strcmp(eventName, test->expected)) {
return 0;
}
if (test->exit) {
PyObject *msg = PyUnicode_FromFormat("detected %s(%R)", eventName, args);
if (msg) {
printf("%s\n", PyUnicode_AsUTF8(msg));
Py_DECREF(msg);
}
exit(test->exit);
}
PyErr_Format(PyExc_RuntimeError, "detected %s(%R)", eventName, args);
return -1;
}
static int test_audit_run_command(void)
{
AuditRunCommandTest test = {"cpython.run_command"};
wchar_t *argv[] = {PROGRAM_NAME, L"-c", L"pass"};
Py_IgnoreEnvironmentFlag = 0;
PySys_AddAuditHook(_audit_hook_run, (void*)&test);
return Py_Main(Py_ARRAY_LENGTH(argv), argv);
}
static int test_audit_run_file(void)
{
AuditRunCommandTest test = {"cpython.run_file"};
wchar_t *argv[] = {PROGRAM_NAME, L"filename.py"};
Py_IgnoreEnvironmentFlag = 0;
PySys_AddAuditHook(_audit_hook_run, (void*)&test);
return Py_Main(Py_ARRAY_LENGTH(argv), argv);
}
static int run_audit_run_test(int argc, wchar_t **argv, void *test)
{
PyConfig config;
PyConfig_InitPythonConfig(&config);
config.argv.length = argc;
config.argv.items = argv;
config.parse_argv = 1;
config.program_name = argv[0];
config.interactive = 1;
config.isolated = 0;
config.use_environment = 1;
config.quiet = 1;
PySys_AddAuditHook(_audit_hook_run, test);
PyStatus status = Py_InitializeFromConfig(&config);
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
return Py_RunMain();
}
static int test_audit_run_interactivehook(void)
{
AuditRunCommandTest test = {"cpython.run_interactivehook", 10};
wchar_t *argv[] = {PROGRAM_NAME};
return run_audit_run_test(Py_ARRAY_LENGTH(argv), argv, &test);
}
static int test_audit_run_startup(void)
{
AuditRunCommandTest test = {"cpython.run_startup", 10};
wchar_t *argv[] = {PROGRAM_NAME};
return run_audit_run_test(Py_ARRAY_LENGTH(argv), argv, &test);
}
static int test_audit_run_stdin(void)
{
AuditRunCommandTest test = {"cpython.run_stdin"};
wchar_t *argv[] = {PROGRAM_NAME};
return run_audit_run_test(Py_ARRAY_LENGTH(argv), argv, &test);
}
static int test_init_read_set(void)
{
PyStatus status;
PyConfig config;
PyConfig_InitPythonConfig(&config);
config_set_string(&config, &config.program_name, L"./init_read_set");
status = PyConfig_Read(&config);
if (PyStatus_Exception(status)) {
goto fail;
}
status = PyWideStringList_Insert(&config.module_search_paths,
1, L"test_path_insert1");
if (PyStatus_Exception(status)) {
goto fail;
}
status = PyWideStringList_Append(&config.module_search_paths,
L"test_path_append");
if (PyStatus_Exception(status)) {
goto fail;
}
/* override executable computed by PyConfig_Read() */
config_set_string(&config, &config.executable, L"my_executable");
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
fail:
PyConfig_Clear(&config);
Py_ExitStatusException(status);
}
static int test_init_sys_add(void)
{
PySys_AddXOption(L"sysadd_xoption");
PySys_AddXOption(L"faulthandler");
PySys_AddWarnOption(L"ignore:::sysadd_warnoption");
PyConfig config;
PyConfig_InitPythonConfig(&config);
wchar_t* argv[] = {
L"python3",
L"-W",
L"ignore:::cmdline_warnoption",
L"-X",
L"cmdline_xoption",
};
config_set_argv(&config, Py_ARRAY_LENGTH(argv), argv);
config.parse_argv = 1;
PyStatus status;
status = PyWideStringList_Append(&config.xoptions,
L"config_xoption");
if (PyStatus_Exception(status)) {
goto fail;
}
status = PyWideStringList_Append(&config.warnoptions,
L"ignore:::config_warnoption");
if (PyStatus_Exception(status)) {
goto fail;
}
config_set_program_name(&config);
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
fail:
PyConfig_Clear(&config);
Py_ExitStatusException(status);
}
static int test_init_setpath(void)
{
char *env = getenv("TESTPATH");
if (!env) {
error("missing TESTPATH env var");
return 1;
}
wchar_t *path = Py_DecodeLocale(env, NULL);
if (path == NULL) {
error("failed to decode TESTPATH");
return 1;
}
Py_SetPath(path);
PyMem_RawFree(path);
putenv("TESTPATH=");
Py_Initialize();
dump_config();
Py_Finalize();
return 0;
}
static int test_init_setpath_config(void)
{
PyPreConfig preconfig;
PyPreConfig_InitPythonConfig(&preconfig);
/* Explicitly preinitializes with Python preconfiguration to avoid
Py_SetPath() implicit preinitialization with compat preconfiguration. */
PyStatus status = Py_PreInitialize(&preconfig);
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
char *env = getenv("TESTPATH");
if (!env) {
error("missing TESTPATH env var");
return 1;
}
wchar_t *path = Py_DecodeLocale(env, NULL);
if (path == NULL) {
error("failed to decode TESTPATH");
return 1;
}
Py_SetPath(path);
PyMem_RawFree(path);
putenv("TESTPATH=");
PyConfig config;
PyConfig_InitPythonConfig(&config);
config_set_string(&config, &config.program_name, L"conf_program_name");
config_set_string(&config, &config.executable, L"conf_executable");
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
static int test_init_setpythonhome(void)
{
char *env = getenv("TESTHOME");
if (!env) {
error("missing TESTHOME env var");
return 1;
}
wchar_t *home = Py_DecodeLocale(env, NULL);
if (home == NULL) {
error("failed to decode TESTHOME");
return 1;
}
Py_SetPythonHome(home);
PyMem_RawFree(home);
putenv("TESTHOME=");
Py_Initialize();
dump_config();
Py_Finalize();
return 0;
}
static int test_init_is_python_build(void)
{
// gh-91985: in-tree builds fail to check for build directory landmarks
// under the effect of 'home' or PYTHONHOME environment variable.
char *env = getenv("TESTHOME");
if (!env) {
error("missing TESTHOME env var");
return 1;
}
wchar_t *home = Py_DecodeLocale(env, NULL);
if (home == NULL) {
error("failed to decode TESTHOME");
return 1;
}
PyConfig config;
_PyConfig_InitCompatConfig(&config);
config_set_program_name(&config);
config_set_string(&config, &config.home, home);
PyMem_RawFree(home);
putenv("TESTHOME=");
// Use an impossible value so we can detect whether it isn't updated
// during initialization.
config._is_python_build = INT_MAX;
env = getenv("NEGATIVE_ISPYTHONBUILD");
if (env && strcmp(env, "0") != 0) {
config._is_python_build = INT_MIN;
}
init_from_config_clear(&config);
Py_Finalize();
// Second initialization
config._is_python_build = -1;
init_from_config_clear(&config);
dump_config(); // home and _is_python_build are cached in _Py_path_config
Py_Finalize();
return 0;
}
static int test_init_warnoptions(void)
{
putenv("PYTHONWARNINGS=ignore:::env1,ignore:::env2");
PySys_AddWarnOption(L"ignore:::PySys_AddWarnOption1");
PySys_AddWarnOption(L"ignore:::PySys_AddWarnOption2");
PyConfig config;
PyConfig_InitPythonConfig(&config);
config.dev_mode = 1;
config.bytes_warning = 1;
config_set_program_name(&config);
PyStatus status;
status = PyWideStringList_Append(&config.warnoptions,
L"ignore:::PyConfig_BeforeRead");
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
wchar_t* argv[] = {
L"python3",
L"-Wignore:::cmdline1",
L"-Wignore:::cmdline2"};
config_set_argv(&config, Py_ARRAY_LENGTH(argv), argv);
config.parse_argv = 1;
status = PyConfig_Read(&config);
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
status = PyWideStringList_Append(&config.warnoptions,
L"ignore:::PyConfig_AfterRead");
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
status = PyWideStringList_Insert(&config.warnoptions,
0, L"ignore:::PyConfig_Insert0");
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
static int tune_config(void)
{
PyConfig config;
PyConfig_InitPythonConfig(&config);
if (_PyInterpreterState_GetConfigCopy(&config) < 0) {
PyConfig_Clear(&config);
PyErr_Print();
return -1;
}
config.bytes_warning = 2;
if (_PyInterpreterState_SetConfig(&config) < 0) {
PyConfig_Clear(&config);
return -1;
}
PyConfig_Clear(&config);
return 0;
}
static int test_init_set_config(void)
{
// Initialize core
PyConfig config;
PyConfig_InitIsolatedConfig(&config);
config_set_string(&config, &config.program_name, PROGRAM_NAME);
config._init_main = 0;
config.bytes_warning = 0;
init_from_config_clear(&config);
// Tune the configuration using _PyInterpreterState_SetConfig()
if (tune_config() < 0) {
PyErr_Print();
return 1;
}
// Finish initialization: main part
PyStatus status = _Py_InitializeMain();
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
dump_config();
Py_Finalize();
return 0;
}
static int initconfig_getint(PyInitConfig *config, const char *name)
{
int64_t value;
int res = PyInitConfig_GetInt(config, name, &value);
assert(res == 0);
assert(INT_MIN <= value && value <= INT_MAX);
return (int)value;
}
static int test_initconfig_api(void)
{
PyInitConfig *config = PyInitConfig_Create();
if (config == NULL) {
printf("Init allocation error\n");
return 1;
}
if (PyInitConfig_SetInt(config, "configure_locale", 1) < 0) {
goto error;
}
if (PyInitConfig_SetInt(config, "dev_mode", 1) < 0) {
goto error;
}
if (PyInitConfig_SetInt(config, "hash_seed", 10) < 0) {
goto error;
}
if (PyInitConfig_SetInt(config, "perf_profiling", 2) < 0) {
goto error;
}
// Set a UTF-8 string (program_name)
if (PyInitConfig_SetStr(config, "program_name", PROGRAM_NAME_UTF8) < 0) {
goto error;
}
// Set a UTF-8 string (pycache_prefix)
if (PyInitConfig_SetStr(config, "pycache_prefix",
"conf_pycache_prefix") < 0) {
goto error;
}
// Set a list of UTF-8 strings (argv)
char* xoptions[] = {"faulthandler"};
if (PyInitConfig_SetStrList(config, "xoptions",
Py_ARRAY_LENGTH(xoptions), xoptions) < 0) {
goto error;
}
if (Py_InitializeFromInitConfig(config) < 0) {
goto error;
}
PyInitConfig_Free(config);
dump_config();
Py_Finalize();
return 0;
const char *err_msg;
error:
(void)PyInitConfig_GetError(config, &err_msg);
printf("Python init failed: %s\n", err_msg);
exit(1);
}
static int test_initconfig_get_api(void)
{
PyInitConfig *config = PyInitConfig_Create();
if (config == NULL) {
printf("Init allocation error\n");
return 1;
}
// test PyInitConfig_HasOption()
assert(PyInitConfig_HasOption(config, "verbose") == 1);
assert(PyInitConfig_HasOption(config, "utf8_mode") == 1);
assert(PyInitConfig_HasOption(config, "non-existent") == 0);
// test PyInitConfig_GetInt()
assert(initconfig_getint(config, "dev_mode") == 0);
assert(PyInitConfig_SetInt(config, "dev_mode", 1) == 0);
assert(initconfig_getint(config, "dev_mode") == 1);
// test PyInitConfig_GetInt() on a PyPreConfig option
assert(initconfig_getint(config, "utf8_mode") == 0);
assert(PyInitConfig_SetInt(config, "utf8_mode", 1) == 0);
assert(initconfig_getint(config, "utf8_mode") == 1);
// test PyInitConfig_GetStr()
char *str;
assert(PyInitConfig_GetStr(config, "program_name", &str) == 0);
assert(str == NULL);
assert(PyInitConfig_SetStr(config, "program_name", PROGRAM_NAME_UTF8) == 0);
assert(PyInitConfig_GetStr(config, "program_name", &str) == 0);
assert(strcmp(str, PROGRAM_NAME_UTF8) == 0);
free(str);
// test PyInitConfig_GetStrList() and PyInitConfig_FreeStrList()
size_t length;
char **items;
assert(PyInitConfig_GetStrList(config, "xoptions", &length, &items) == 0);
assert(length == 0);
char* xoptions[] = {"faulthandler"};
assert(PyInitConfig_SetStrList(config, "xoptions",
Py_ARRAY_LENGTH(xoptions), xoptions) == 0);
assert(PyInitConfig_GetStrList(config, "xoptions", &length, &items) == 0);
assert(length == 1);
assert(strcmp(items[0], "faulthandler") == 0);
PyInitConfig_FreeStrList(length, items);
// Setting hash_seed sets use_hash_seed
assert(initconfig_getint(config, "use_hash_seed") == 0);
assert(PyInitConfig_SetInt(config, "hash_seed", 123) == 0);
assert(initconfig_getint(config, "use_hash_seed") == 1);
// Setting module_search_paths sets module_search_paths_set
assert(initconfig_getint(config, "module_search_paths_set") == 0);
char* paths[] = {"search", "path"};
assert(PyInitConfig_SetStrList(config, "module_search_paths",
Py_ARRAY_LENGTH(paths), paths) == 0);
assert(initconfig_getint(config, "module_search_paths_set") == 1);
return 0;
}
static int test_initconfig_exit(void)
{
PyInitConfig *config = PyInitConfig_Create();
if (config == NULL) {
printf("Init allocation error\n");
return 1;
}
char *argv[] = {PROGRAM_NAME_UTF8, "--help"};
assert(PyInitConfig_SetStrList(config, "argv",
Py_ARRAY_LENGTH(argv), argv) == 0);
assert(PyInitConfig_SetInt(config, "parse_argv", 1) == 0);
assert(Py_InitializeFromInitConfig(config) < 0);
int exitcode;
assert(PyInitConfig_GetExitCode(config, &exitcode) == 1);
assert(exitcode == 0);
const char *err_msg;
assert(PyInitConfig_GetError(config, &err_msg) == 1);
assert(strcmp(err_msg, "exit code 0") == 0);
PyInitConfig_Free(config);
return 0;
}
static PyModuleDef_Slot extension_slots[] = {
{Py_mod_gil, Py_MOD_GIL_NOT_USED},
{0, NULL}
};
static struct PyModuleDef extension_module = {
PyModuleDef_HEAD_INIT,
.m_name = "my_test_extension",
.m_size = 0,
.m_slots = extension_slots,
};
static PyObject* init_my_test_extension(void)
{
return PyModuleDef_Init(&extension_module);
}
static int test_initconfig_module(void)
{
PyInitConfig *config = PyInitConfig_Create();
if (config == NULL) {
printf("Init allocation error\n");
return 1;
}
if (PyInitConfig_SetStr(config, "program_name", PROGRAM_NAME_UTF8) < 0) {
goto error;
}
if (PyInitConfig_AddModule(config, "my_test_extension",
init_my_test_extension) < 0) {
goto error;
}
if (Py_InitializeFromInitConfig(config) < 0) {
goto error;
}
PyInitConfig_Free(config);
if (PyRun_SimpleString("import my_test_extension") < 0) {
fprintf(stderr, "unable to import my_test_extension\n");
exit(1);
}
Py_Finalize();
return 0;
const char *err_msg;
error:
(void)PyInitConfig_GetError(config, &err_msg);
printf("Python init failed: %s\n", err_msg);
exit(1);
}
static void configure_init_main(PyConfig *config)
{
wchar_t* argv[] = {
L"python3", L"-c",
(L"import _testinternalcapi, json; "
L"print(json.dumps(_testinternalcapi.get_configs()))"),
L"arg2"};
config->parse_argv = 1;
config_set_argv(config, Py_ARRAY_LENGTH(argv), argv);
config_set_string(config, &config->program_name, L"./python3");
}
static int test_init_run_main(void)
{
PyConfig config;
PyConfig_InitPythonConfig(&config);
configure_init_main(&config);
init_from_config_clear(&config);
return Py_RunMain();
}
static int test_init_main(void)
{
PyConfig config;
PyConfig_InitPythonConfig(&config);
configure_init_main(&config);
config._init_main = 0;
init_from_config_clear(&config);
/* sys.stdout don't exist yet: it is created by _Py_InitializeMain() */
int res = PyRun_SimpleString(
"import sys; "
"print('Run Python code before _Py_InitializeMain', "
"file=sys.stderr)");
if (res < 0) {
exit(1);
}
PyStatus status = _Py_InitializeMain();
if (PyStatus_Exception(status)) {
Py_ExitStatusException(status);
}
return Py_RunMain();
}
static int test_run_main(void)
{
PyConfig config;
PyConfig_InitPythonConfig(&config);
wchar_t *argv[] = {L"python3", L"-c",
(L"import sys; "
L"print(f'Py_RunMain(): sys.argv={sys.argv}')"),
L"arg2"};
config_set_argv(&config, Py_ARRAY_LENGTH(argv), argv);
config_set_string(&config, &config.program_name, L"./python3");
init_from_config_clear(&config);
return Py_RunMain();
}
static int test_run_main_loop(void)
{
// bpo-40413: Calling Py_InitializeFromConfig()+Py_RunMain() multiple
// times must not crash.
for (int i=0; i<5; i++) {
int exitcode = test_run_main();
if (exitcode != 0) {
return exitcode;
}
}
return 0;
}
static int test_get_argc_argv(void)
{
PyConfig config;
PyConfig_InitPythonConfig(&config);
wchar_t *argv[] = {L"python3", L"-c", L"pass", L"arg2"};
config_set_argv(&config, Py_ARRAY_LENGTH(argv), argv);
config_set_string(&config, &config.program_name, L"./python3");
// Calling PyConfig_Read() twice must not change Py_GetArgcArgv() result.
// The second call is done by Py_InitializeFromConfig().
PyStatus status = PyConfig_Read(&config);
if (PyStatus_Exception(status)) {
PyConfig_Clear(&config);
Py_ExitStatusException(status);
}
init_from_config_clear(&config);
int get_argc;
wchar_t **get_argv;
Py_GetArgcArgv(&get_argc, &get_argv);
printf("argc: %i\n", get_argc);
assert(get_argc == Py_ARRAY_LENGTH(argv));
for (int i=0; i < get_argc; i++) {
printf("argv[%i]: %ls\n", i, get_argv[i]);
assert(wcscmp(get_argv[i], argv[i]) == 0);
}
Py_Finalize();
printf("\n");
printf("test ok\n");
return 0;
}
static int check_use_frozen_modules(const char *rawval)
{
wchar_t optval[100];
if (rawval == NULL) {
wcscpy(optval, L"frozen_modules");
}
else if (swprintf(optval, 100,
#if defined(_MSC_VER)
L"frozen_modules=%S",
#else
L"frozen_modules=%s",
#endif
rawval) < 0) {
error("rawval is too long");
return -1;
}
PyConfig config;
PyConfig_InitPythonConfig(&config);
config.parse_argv = 1;
wchar_t* argv[] = {
L"./argv0",
L"-X",
optval,
L"-c",
L"pass",
};
config_set_argv(&config, Py_ARRAY_LENGTH(argv), argv);
init_from_config_clear(&config);
dump_config();
Py_Finalize();
return 0;
}
static int test_init_use_frozen_modules(void)
{
const char *envvar = getenv("TESTFROZEN");
return check_use_frozen_modules(envvar);
}
static int test_unicode_id_init(void)
{
// bpo-42882: Test that _PyUnicode_FromId() works
// when Python is initialized multiples times.
// This is equivalent to `_Py_IDENTIFIER(test_unicode_id_init)`
// but since `_Py_IDENTIFIER` is disabled when `Py_BUILD_CORE`
// is defined, it is manually expanded here.
static _Py_Identifier PyId_test_unicode_id_init = {
.string = "test_unicode_id_init",
.index = -1,
};
// Initialize Python once without using the identifier
_testembed_Py_InitializeFromConfig();
Py_Finalize();
// Now initialize Python multiple times and use the identifier.
// The first _PyUnicode_FromId() call initializes the identifier index.
for (int i=0; i<3; i++) {
_testembed_Py_InitializeFromConfig();
PyObject *str1, *str2;
str1 = _PyUnicode_FromId(&PyId_test_unicode_id_init);
assert(str1 != NULL);
assert(_Py_IsImmortal(str1));
str2 = PyUnicode_FromString("test_unicode_id_init");
assert(str2 != NULL);
assert(PyUnicode_Compare(str1, str2) == 0);
Py_DECREF(str2);
Py_Finalize();
}
return 0;
}
static int test_init_main_interpreter_settings(void)
{
_testembed_Py_Initialize();
(void) PyRun_SimpleStringFlags(
"import _testinternalcapi, json; "
"print(json.dumps(_testinternalcapi.get_interp_settings(0)))",
0);
Py_Finalize();
return 0;
}
static void do_init(void *unused)
{
_testembed_Py_Initialize();
Py_Finalize();
}
static int test_init_in_background_thread(void)
{
PyThread_handle_t handle;
PyThread_ident_t ident;
if (PyThread_start_joinable_thread(&do_init, NULL, &ident, &handle) < 0) {
return -1;
}
return PyThread_join_thread(handle);
}
#ifndef MS_WINDOWS
#include "test_frozenmain.h" // M_test_frozenmain
static int test_frozenmain(void)
{
static struct _frozen frozen_modules[4] = {
{"__main__", M_test_frozenmain, sizeof(M_test_frozenmain)},
{0, 0, 0} // sentinel
};
char* argv[] = {
"./argv0",
"-E",
"arg1",
"arg2",
};
PyImport_FrozenModules = frozen_modules;
return Py_FrozenMain(Py_ARRAY_LENGTH(argv), argv);
}
#endif // !MS_WINDOWS
static int test_repeated_init_and_inittab(void)
{
// bpo-44441: Py_RunMain() must reset PyImport_Inittab at exit.
// It must be possible to call PyImport_AppendInittab() or
// PyImport_ExtendInittab() before each Python initialization.
for (int i=1; i <= INIT_LOOPS; i++) {
printf("--- Pass %d ---\n", i);
// Call PyImport_AppendInittab() at each iteration
if (PyImport_AppendInittab(EMBEDDED_EXT_NAME,
&PyInit_embedded_ext) != 0) {
fprintf(stderr, "PyImport_AppendInittab() failed\n");
return 1;
}
// Initialize Python
wchar_t* argv[] = {PROGRAM_NAME, L"-c", L"pass"};
PyConfig config;
PyConfig_InitPythonConfig(&config);
config.isolated = 1;
config_set_argv(&config, Py_ARRAY_LENGTH(argv), argv);
init_from_config_clear(&config);
// Py_RunMain() calls _PyImport_Fini2() which resets PyImport_Inittab
int exitcode = Py_RunMain();
if (exitcode != 0) {
return exitcode;
}
}
return 0;
}
static void wrap_allocator(PyMemAllocatorEx *allocator);
static void unwrap_allocator(PyMemAllocatorEx *allocator);
static void *
malloc_wrapper(void *ctx, size_t size)
{
PyMemAllocatorEx *allocator = (PyMemAllocatorEx *)ctx;
unwrap_allocator(allocator);
PyEval_GetFrame(); // BOOM!
wrap_allocator(allocator);
return allocator->malloc(allocator->ctx, size);
}
static void *
calloc_wrapper(void *ctx, size_t nelem, size_t elsize)
{
PyMemAllocatorEx *allocator = (PyMemAllocatorEx *)ctx;
return allocator->calloc(allocator->ctx, nelem, elsize);
}
static void *
realloc_wrapper(void *ctx, void *ptr, size_t new_size)
{
PyMemAllocatorEx *allocator = (PyMemAllocatorEx *)ctx;
return allocator->realloc(allocator->ctx, ptr, new_size);
}
static void
free_wrapper(void *ctx, void *ptr)
{
PyMemAllocatorEx *allocator = (PyMemAllocatorEx *)ctx;
allocator->free(allocator->ctx, ptr);
}
static void
wrap_allocator(PyMemAllocatorEx *allocator)
{
PyMem_GetAllocator(PYMEM_DOMAIN_OBJ, allocator);
PyMemAllocatorEx wrapper = {
.malloc = &malloc_wrapper,
.calloc = &calloc_wrapper,
.realloc = &realloc_wrapper,
.free = &free_wrapper,
.ctx = allocator,
};
PyMem_SetAllocator(PYMEM_DOMAIN_OBJ, &wrapper);
}
static void
unwrap_allocator(PyMemAllocatorEx *allocator)
{
PyMem_SetAllocator(PYMEM_DOMAIN_OBJ, allocator);
}
static int
test_get_incomplete_frame(void)
{
_testembed_Py_InitializeFromConfig();
PyMemAllocatorEx allocator;
wrap_allocator(&allocator);
// Force an allocation with an incomplete (generator) frame:
int result = PyRun_SimpleString("(_ for _ in ())");
unwrap_allocator(&allocator);
Py_Finalize();
return result;
}
/* *********************************************************
* List of test cases and the function that implements it.
*
* Names are compared case-sensitively with the first
* argument. If no match is found, or no first argument was
* provided, the names of all test cases are printed and
* the exit code will be -1.
*
* The int returned from test functions is used as the exit
* code, and test_capi treats all non-zero exit codes as a
* failed test.
*********************************************************/
struct TestCase
{
const char *name;
int (*func)(void);
};
static struct TestCase TestCases[] = {
// Python initialization
{"test_repeated_init_exec", test_repeated_init_exec},
{"test_repeated_simple_init", test_repeated_simple_init},
{"test_forced_io_encoding", test_forced_io_encoding},
{"test_import_in_subinterpreters", test_import_in_subinterpreters},
{"test_repeated_init_and_subinterpreters", test_repeated_init_and_subinterpreters},
{"test_repeated_init_and_inittab", test_repeated_init_and_inittab},
{"test_pre_initialization_api", test_pre_initialization_api},
{"test_pre_initialization_sys_options", test_pre_initialization_sys_options},
{"test_bpo20891", test_bpo20891},
{"test_initialize_twice", test_initialize_twice},
{"test_initialize_pymain", test_initialize_pymain},
{"test_init_initialize_config", test_init_initialize_config},
{"test_preinit_compat_config", test_preinit_compat_config},
{"test_init_compat_config", test_init_compat_config},
{"test_init_global_config", test_init_global_config},
{"test_init_from_config", test_init_from_config},
{"test_init_parse_argv", test_init_parse_argv},
{"test_init_dont_parse_argv", test_init_dont_parse_argv},
{"test_init_compat_env", test_init_compat_env},
{"test_init_python_env", test_init_python_env},
{"test_init_env_dev_mode", test_init_env_dev_mode},
{"test_init_env_dev_mode_alloc", test_init_env_dev_mode_alloc},
{"test_init_dont_configure_locale", test_init_dont_configure_locale},
{"test_init_dev_mode", test_init_dev_mode},
{"test_init_isolated_flag", test_init_isolated_flag},
{"test_preinit_isolated_config", test_preinit_isolated_config},
{"test_init_isolated_config", test_init_isolated_config},
{"test_preinit_python_config", test_preinit_python_config},
{"test_init_python_config", test_init_python_config},
{"test_preinit_isolated1", test_preinit_isolated1},
{"test_preinit_isolated2", test_preinit_isolated2},
{"test_preinit_parse_argv", test_preinit_parse_argv},
{"test_preinit_dont_parse_argv", test_preinit_dont_parse_argv},
{"test_init_read_set", test_init_read_set},
{"test_init_run_main", test_init_run_main},
{"test_init_main", test_init_main},
{"test_init_sys_add", test_init_sys_add},
{"test_init_setpath", test_init_setpath},
{"test_init_setpath_config", test_init_setpath_config},
{"test_init_setpythonhome", test_init_setpythonhome},
{"test_init_is_python_build", test_init_is_python_build},
{"test_init_warnoptions", test_init_warnoptions},
{"test_init_set_config", test_init_set_config},
{"test_initconfig_api", test_initconfig_api},
{"test_initconfig_get_api", test_initconfig_get_api},
{"test_initconfig_exit", test_initconfig_exit},
{"test_initconfig_module", test_initconfig_module},
{"test_run_main", test_run_main},
{"test_run_main_loop", test_run_main_loop},
{"test_get_argc_argv", test_get_argc_argv},
{"test_init_use_frozen_modules", test_init_use_frozen_modules},
{"test_init_main_interpreter_settings", test_init_main_interpreter_settings},
{"test_init_in_background_thread", test_init_in_background_thread},
// Audit
{"test_open_code_hook", test_open_code_hook},
{"test_audit", test_audit},
{"test_audit_tuple", test_audit_tuple},
{"test_audit_subinterpreter", test_audit_subinterpreter},
{"test_audit_run_command", test_audit_run_command},
{"test_audit_run_file", test_audit_run_file},
{"test_audit_run_interactivehook", test_audit_run_interactivehook},
{"test_audit_run_startup", test_audit_run_startup},
{"test_audit_run_stdin", test_audit_run_stdin},
// Specific C API
{"test_unicode_id_init", test_unicode_id_init},
#ifndef MS_WINDOWS
{"test_frozenmain", test_frozenmain},
#endif
{"test_get_incomplete_frame", test_get_incomplete_frame},
{NULL, NULL}
};
int main(int argc, char *argv[])
{
main_argc = argc;
main_argv = argv;
if (argc > 1) {
for (struct TestCase *tc = TestCases; tc && tc->name; tc++) {
if (strcmp(argv[1], tc->name) == 0)
return (*tc->func)();
}
}
/* No match found, or no test name provided, so display usage */
printf("Python " PY_VERSION " _testembed executable for embedded interpreter tests\n"
"Normally executed via 'EmbeddingTests' in Lib/test/test_embed.py\n\n"
"Usage: %s TESTNAME\n\nAll available tests:\n", argv[0]);
for (struct TestCase *tc = TestCases; tc && tc->name; tc++) {
printf(" %s\n", tc->name);
}
/* Non-zero exit code will cause test_embed.py tests to fail.
This is intentional. */
return -1;
}
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