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2025 lines (1794 loc) · 76.6 KB
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# Run the tests in Programs/_testembed.c (tests for the CPython embedding APIs)
from test import support
from test.support import import_helper, os_helper, threading_helper, MS_WINDOWS
import unittest
from collections import namedtuple
import contextlib
import json
import os
import os.path
import re
import shutil
import subprocess
import sys
import sysconfig
import tempfile
import textwrap
if not support.has_subprocess_support:
raise unittest.SkipTest("test module requires subprocess")
try:
import _testinternalcapi
except ImportError:
_testinternalcapi = None
MACOS = (sys.platform == 'darwin')
PYMEM_ALLOCATOR_NOT_SET = 0
PYMEM_ALLOCATOR_DEBUG = 2
PYMEM_ALLOCATOR_MALLOC = 3
PYMEM_ALLOCATOR_MIMALLOC = 7
if support.Py_GIL_DISABLED:
ALLOCATOR_FOR_CONFIG = PYMEM_ALLOCATOR_MIMALLOC
else:
ALLOCATOR_FOR_CONFIG = PYMEM_ALLOCATOR_MALLOC
Py_STATS = hasattr(sys, '_stats_on')
# _PyCoreConfig_InitCompatConfig()
API_COMPAT = 1
# _PyCoreConfig_InitPythonConfig()
API_PYTHON = 2
# _PyCoreConfig_InitIsolatedConfig()
API_ISOLATED = 3
INIT_LOOPS = 4
MAX_HASH_SEED = 4294967295
ABI_THREAD = 't' if support.Py_GIL_DISABLED else ''
# PLATSTDLIB_LANDMARK copied from Modules/getpath.py
if os.name == 'nt':
PLATSTDLIB_LANDMARK = f'{sys.platlibdir}'
else:
VERSION_MAJOR = sys.version_info.major
VERSION_MINOR = sys.version_info.minor
PLATSTDLIB_LANDMARK = (f'{sys.platlibdir}/python{VERSION_MAJOR}.'
f'{VERSION_MINOR}{ABI_THREAD}/lib-dynload')
DEFAULT_THREAD_INHERIT_CONTEXT = 1 if support.Py_GIL_DISABLED else 0
DEFAULT_CONTEXT_AWARE_WARNINGS = 1 if support.Py_GIL_DISABLED else 0
# If we are running from a build dir, but the stdlib has been installed,
# some tests need to expect different results.
STDLIB_INSTALL = os.path.join(sys.prefix, sys.platlibdir,
f'python{sys.version_info.major}.{sys.version_info.minor}')
if not os.path.isfile(os.path.join(STDLIB_INSTALL, 'os.py')):
STDLIB_INSTALL = None
def debug_build(program):
program = os.path.basename(program)
name = os.path.splitext(program)[0]
return name.casefold().endswith("_d".casefold())
def remove_python_envvars():
env = dict(os.environ)
# Remove PYTHON* environment variables to get deterministic environment
for key in list(env):
if key.startswith('PYTHON'):
del env[key]
return env
class EmbeddingTestsMixin:
def setUp(self):
exename = "_testembed"
builddir = os.path.dirname(sys.executable)
if MS_WINDOWS:
ext = ("_d" if debug_build(sys.executable) else "") + ".exe"
exename += ext
exepath = builddir
else:
exepath = os.path.join(builddir, 'Programs')
self.test_exe = exe = os.path.join(exepath, exename)
if not os.path.exists(exe):
self.skipTest("%r doesn't exist" % exe)
# This is needed otherwise we get a fatal error:
# "Py_Initialize: Unable to get the locale encoding
# LookupError: no codec search functions registered: can't find encoding"
self.oldcwd = os.getcwd()
os.chdir(builddir)
def tearDown(self):
os.chdir(self.oldcwd)
def run_embedded_interpreter(self, *args, env=None,
timeout=None, returncode=0, input=None,
cwd=None):
"""Runs a test in the embedded interpreter"""
cmd = [self.test_exe]
cmd.extend(args)
if env is not None and MS_WINDOWS:
# Windows requires at least the SYSTEMROOT environment variable to
# start Python.
env = env.copy()
env['SYSTEMROOT'] = os.environ['SYSTEMROOT']
p = subprocess.Popen(cmd,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
universal_newlines=True,
env=env,
cwd=cwd)
try:
(out, err) = p.communicate(input=input, timeout=timeout)
except:
p.terminate()
p.wait()
raise
if p.returncode != returncode and support.verbose:
print(f"--- {cmd} failed ---")
print(f"stdout:\n{out}")
print(f"stderr:\n{err}")
print("------")
self.assertEqual(p.returncode, returncode,
"bad returncode %d, stderr is %r" %
(p.returncode, err))
return out, err
def run_repeated_init_and_subinterpreters(self):
out, err = self.run_embedded_interpreter("test_repeated_init_and_subinterpreters")
self.assertEqual(err, "")
# The output from _testembed looks like this:
# --- Pass 1 ---
# interp 0 <0x1cf9330>, thread state <0x1cf9700>: id(modules) = 139650431942728
# interp 1 <0x1d4f690>, thread state <0x1d35350>: id(modules) = 139650431165784
# interp 2 <0x1d5a690>, thread state <0x1d99ed0>: id(modules) = 139650413140368
# interp 3 <0x1d4f690>, thread state <0x1dc3340>: id(modules) = 139650412862200
# interp 0 <0x1cf9330>, thread state <0x1cf9700>: id(modules) = 139650431942728
# --- Pass 2 ---
# ...
interp_pat = (r"^interp (\d+) <(0x[\dA-F]+)>, "
r"thread state <(0x[\dA-F]+)>: "
r"id\(modules\) = ([\d]+)$")
Interp = namedtuple("Interp", "id interp tstate modules")
numloops = 1
current_run = []
for line in out.splitlines():
if line == "--- Pass {} ---".format(numloops):
self.assertEqual(len(current_run), 0)
if support.verbose > 1:
print(line)
numloops += 1
continue
self.assertLess(len(current_run), 5)
match = re.match(interp_pat, line)
if match is None:
self.assertRegex(line, interp_pat)
# Parse the line from the loop. The first line is the main
# interpreter and the 3 afterward are subinterpreters.
interp = Interp(*match.groups())
if support.verbose > 2:
# 5 lines per pass is super-spammy, so limit that to -vvv
print(interp)
self.assertTrue(interp.interp)
self.assertTrue(interp.tstate)
self.assertTrue(interp.modules)
current_run.append(interp)
# The last line in the loop should be the same as the first.
if len(current_run) == 5:
main = current_run[0]
self.assertEqual(interp, main)
yield current_run
current_run = []
class EmbeddingTests(EmbeddingTestsMixin, unittest.TestCase):
maxDiff = 100 * 50
def test_subinterps_main(self):
for run in self.run_repeated_init_and_subinterpreters():
main = run[0]
self.assertEqual(main.id, '0')
def test_subinterps_different_ids(self):
for run in self.run_repeated_init_and_subinterpreters():
main, *subs, _ = run
mainid = int(main.id)
for i, sub in enumerate(subs):
self.assertEqual(sub.id, str(mainid + i + 1))
def test_subinterps_distinct_state(self):
for run in self.run_repeated_init_and_subinterpreters():
main, *subs, _ = run
if '0x0' in main:
# XXX Fix on Windows (and other platforms): something
# is going on with the pointers in Programs/_testembed.c.
# interp.interp is 0x0 and interp.modules is the same
# between interpreters.
raise unittest.SkipTest('platform prints pointers as 0x0')
for sub in subs:
# A new subinterpreter may have the same
# PyInterpreterState pointer as a previous one if
# the earlier one has already been destroyed. So
# we compare with the main interpreter. The same
# applies to tstate.
self.assertNotEqual(sub.interp, main.interp)
self.assertNotEqual(sub.tstate, main.tstate)
self.assertNotEqual(sub.modules, main.modules)
def test_repeated_init_and_inittab(self):
out, err = self.run_embedded_interpreter("test_repeated_init_and_inittab")
self.assertEqual(err, "")
lines = [f"--- Pass {i} ---" for i in range(1, INIT_LOOPS+1)]
lines = "\n".join(lines) + "\n"
self.assertEqual(out, lines)
def test_create_module_from_initfunc(self):
out, err = self.run_embedded_interpreter("test_create_module_from_initfunc")
self.assertEqual(self._nogil_filtered_err(err, "embedded_ext"), "")
self.assertEqual(out,
"<module 'my_test_extension' (static-extension)>\n"
"my_test_extension.executed='yes'\n"
"my_test_extension.exec_slot_ran='yes'\n"
"<module 'embedded_ext' (static-extension)>\n"
"embedded_ext.executed='yes'\n"
)
def test_inittab_submodule_multiphase(self):
out, err = self.run_embedded_interpreter("test_inittab_submodule_multiphase")
self.assertEqual(err, "")
self.assertEqual(out,
"<module 'mp_pkg.mp_submod' (built-in)>\n"
"<module 'mp_pkg.mp_submod' (built-in)>\n"
"Hello from sub-module\n"
"mp_pkg.mp_submod.mp_submod_exec_slot_ran='yes'\n"
"mp_pkg.mp_pkg_exec_slot_ran='yes'\n"
)
def test_inittab_submodule_singlephase(self):
out, err = self.run_embedded_interpreter("test_inittab_submodule_singlephase")
self.assertEqual(self._nogil_filtered_err(err, "sp_pkg"), "")
self.assertEqual(out,
"<module 'sp_pkg.sp_submod' (built-in)>\n"
"<module 'sp_pkg.sp_submod' (built-in)>\n"
"Hello from sub-module\n"
)
def test_forced_io_encoding(self):
# Checks forced configuration of embedded interpreter IO streams
env = dict(os.environ, PYTHONIOENCODING="utf-8:surrogateescape")
out, err = self.run_embedded_interpreter("test_forced_io_encoding", env=env)
if support.verbose > 1:
print()
print(out)
print(err)
expected_stream_encoding = "utf-8"
expected_errors = "surrogateescape"
expected_output = '\n'.join([
"--- Use defaults ---",
"Expected encoding: default",
"Expected errors: default",
"stdin: {in_encoding}:{errors}",
"stdout: {out_encoding}:{errors}",
"stderr: {out_encoding}:backslashreplace",
"--- Set errors only ---",
"Expected encoding: default",
"Expected errors: ignore",
"stdin: {in_encoding}:ignore",
"stdout: {out_encoding}:ignore",
"stderr: {out_encoding}:backslashreplace",
"--- Set encoding only ---",
"Expected encoding: iso8859-1",
"Expected errors: default",
"stdin: iso8859-1:{errors}",
"stdout: iso8859-1:{errors}",
"stderr: iso8859-1:backslashreplace",
"--- Set encoding and errors ---",
"Expected encoding: iso8859-1",
"Expected errors: replace",
"stdin: iso8859-1:replace",
"stdout: iso8859-1:replace",
"stderr: iso8859-1:backslashreplace"])
expected_output = expected_output.format(
in_encoding=expected_stream_encoding,
out_encoding=expected_stream_encoding,
errors=expected_errors)
# This is useful if we ever trip over odd platform behaviour
self.maxDiff = None
self.assertEqual(out.strip(), expected_output)
def test_pre_initialization_api(self):
"""
Checks some key parts of the C-API that need to work before the runtime
is initialized (via Py_Initialize()).
"""
env = dict(os.environ, PYTHONPATH=os.pathsep.join(sys.path))
out, err = self.run_embedded_interpreter("test_pre_initialization_api", env=env)
if support.verbose > 1:
print()
print(out)
print(err)
if MS_WINDOWS:
expected_path = self.test_exe
else:
expected_path = os.path.join(os.getcwd(), "_testembed")
expected_output = f"sys.executable: {expected_path}\n"
self.assertIn(expected_output, out)
self.assertEqual(err, '')
def test_pre_initialization_sys_options(self):
"""
Checks that sys.warnoptions and sys._xoptions can be set before the
runtime is initialized (otherwise they won't be effective).
"""
env = remove_python_envvars()
env['PYTHONPATH'] = os.pathsep.join(sys.path)
out, err = self.run_embedded_interpreter(
"test_pre_initialization_sys_options", env=env)
if support.verbose > 1:
print()
print(out)
print(err)
expected_output = (
"sys.warnoptions: ['once', 'module', 'default']\n"
"sys._xoptions: {'not_an_option': '1', 'also_not_an_option': '2'}\n"
"warnings.filters[:3]: ['default', 'module', 'once']\n"
)
self.assertIn(expected_output, out)
self.assertEqual(err, '')
def test_bpo20891(self):
"""
bpo-20891: Calling PyGILState_Ensure in a non-Python thread must not
crash.
"""
out, err = self.run_embedded_interpreter("test_bpo20891")
self.assertEqual(out, '')
self.assertEqual(err, '')
def test_initialize_twice(self):
"""
bpo-33932: Calling Py_Initialize() twice should do nothing (and not
crash!).
"""
out, err = self.run_embedded_interpreter("test_initialize_twice")
self.assertEqual(out, '')
self.assertEqual(err, '')
def test_initialize_pymain(self):
"""
bpo-34008: Calling Py_Main() after Py_Initialize() must not fail.
"""
out, err = self.run_embedded_interpreter("test_initialize_pymain")
self.assertEqual(out.rstrip(), "Py_Main() after Py_Initialize: sys.argv=['-c', 'arg2']")
self.assertEqual(err, '')
def test_run_main(self):
out, err = self.run_embedded_interpreter("test_run_main")
self.assertEqual(out.rstrip(), "Py_RunMain(): sys.argv=['-c', 'arg2']")
self.assertEqual(err, '')
def test_run_main_loop(self):
# bpo-40413: Calling Py_InitializeFromConfig()+Py_RunMain() multiple
# times must not crash.
nloop = 5
out, err = self.run_embedded_interpreter("test_run_main_loop")
self.assertEqual(out, "Py_RunMain(): sys.argv=['-c', 'arg2']\n" * nloop)
self.assertEqual(err, '')
def test_finalize_structseq(self):
# bpo-46417: Py_Finalize() clears structseq static types. Check that
# sys attributes using struct types still work when
# Py_Finalize()/Py_Initialize() is called multiple times.
# print() calls type->tp_repr(instance) and so checks that the types
# are still working properly.
script = support.findfile('_test_embed_structseq.py')
with open(script, encoding="utf-8") as fp:
code = fp.read()
out, err = self.run_embedded_interpreter("test_repeated_init_exec", code)
self.assertEqual(out, 'Tests passed\n' * INIT_LOOPS)
def test_simple_initialization_api(self):
# _testembed now uses Py_InitializeFromConfig by default
# This case specifically checks Py_Initialize(Ex) still works
out, err = self.run_embedded_interpreter("test_repeated_simple_init")
self.assertEqual(out, 'Finalized\n' * INIT_LOOPS)
@support.requires_specialization
@unittest.skipUnless(support.TEST_MODULES_ENABLED, "requires test modules")
def test_specialized_static_code_gets_unspecialized_at_Py_FINALIZE(self):
# https://github.com/python/cpython/issues/92031
_testinternalcapi = import_helper.import_module("_testinternalcapi")
code = textwrap.dedent(f"""\
import dis
import importlib._bootstrap
import opcode
import test.test_dis
import test.support
def is_specialized(f):
for instruction in dis.get_instructions(f, adaptive=True):
opname = instruction.opname
if (
opname in opcode._specialized_opmap
# Exclude superinstructions:
and "__" not in opname
# LOAD_CONST_IMMORTAL is "specialized", but is
# inserted during quickening.
and opname != "LOAD_CONST_IMMORTAL"
):
return True
return False
func = importlib._bootstrap._handle_fromlist
# "copy" the code to un-specialize it:
test.support.reset_code(func)
assert not is_specialized(func), "specialized instructions found"
for _ in range({_testinternalcapi.SPECIALIZATION_THRESHOLD}):
func(importlib._bootstrap, ["x"], lambda *args: None)
assert is_specialized(func), "no specialized instructions found"
print("Tests passed")
""")
run = self.run_embedded_interpreter
out, err = run("test_repeated_init_exec", code)
self.assertEqual(out, 'Tests passed\n' * INIT_LOOPS)
def test_ucnhash_capi_reset(self):
# bpo-47182: unicodeobject.c:ucnhash_capi was not reset on shutdown.
code = "print('\\N{digit nine}')"
out, err = self.run_embedded_interpreter("test_repeated_init_exec", code)
self.assertEqual(out, '9\n' * INIT_LOOPS)
def test_datetime_reset_strptime(self):
code = (
"import datetime;"
"d = datetime.datetime.strptime('2000-01-01', '%Y-%m-%d');"
"print(d.strftime('%Y%m%d'))"
)
out, err = self.run_embedded_interpreter("test_repeated_init_exec", code)
self.assertEqual(out, '20000101\n' * INIT_LOOPS)
def test_static_types_inherited_slots(self):
script = textwrap.dedent("""
import test.support
results = []
for cls in test.support.iter_builtin_types():
for attr, _ in test.support.iter_slot_wrappers(cls):
wrapper = getattr(cls, attr)
res = (cls, attr, wrapper)
results.append(res)
results = ((repr(c), a, repr(w)) for c, a, w in results)
""")
def collate_results(raw):
results = {}
for cls, attr, wrapper in raw:
key = cls, attr
assert key not in results, (results, key, wrapper)
results[key] = wrapper
return results
ns = {}
exec(script, ns, ns)
main_results = collate_results(ns['results'])
del ns
script += textwrap.dedent("""
import json
import sys
text = json.dumps(list(results))
print(text, file=sys.stderr)
""")
out, err = self.run_embedded_interpreter(
"test_repeated_init_exec", script, script)
_results = err.split('--- Loop #')[1:]
(_embedded, _reinit,
) = [json.loads(res.rpartition(' ---\n')[-1]) for res in _results]
embedded_results = collate_results(_embedded)
reinit_results = collate_results(_reinit)
for key, expected in main_results.items():
cls, attr = key
for src, results in [
('embedded', embedded_results),
('reinit', reinit_results),
]:
with self.subTest(src, cls=cls, slotattr=attr):
actual = results.pop(key)
self.assertEqual(actual, expected)
self.maxDiff = None
self.assertEqual(embedded_results, {})
self.assertEqual(reinit_results, {})
self.assertEqual(out, '')
def test_getargs_reset_static_parser(self):
# Test _PyArg_Parser initializations via _PyArg_UnpackKeywords()
# https://github.com/python/cpython/issues/122334
code = textwrap.dedent("""
try:
import _ssl
except ModuleNotFoundError:
_ssl = None
if _ssl is not None:
_ssl.txt2obj(txt='1.3')
print('1')
import _queue
_queue.SimpleQueue().put_nowait(item=None)
print('2')
import _zoneinfo
_zoneinfo.ZoneInfo.clear_cache(only_keys=['Foo/Bar'])
print('3')
""")
out, err = self.run_embedded_interpreter("test_repeated_init_exec", code)
self.assertEqual(out, '1\n2\n3\n' * INIT_LOOPS)
@staticmethod
def _nogil_filtered_err(err: str, mod_name: str) -> str:
if not support.Py_GIL_DISABLED:
return err
# the test imports a singlephase init extension, so it emits a warning
# under the free-threaded build
expected_runtime_warning = (
"RuntimeWarning: The global interpreter lock (GIL)"
f" has been enabled to load module '{mod_name}'"
)
filtered_err_lines = [
line
for line in err.strip().splitlines()
if expected_runtime_warning not in line
]
return "\n".join(filtered_err_lines)
def config_dev_mode(preconfig, config):
preconfig['allocator'] = PYMEM_ALLOCATOR_DEBUG
preconfig['dev_mode'] = 1
config['dev_mode'] = 1
config['warnoptions'] = ['default']
config['faulthandler'] = 1
@unittest.skipIf(_testinternalcapi is None, "requires _testinternalcapi")
class InitConfigTests(EmbeddingTestsMixin, unittest.TestCase):
maxDiff = 4096
UTF8_MODE_ERRORS = ('surrogatepass' if MS_WINDOWS else 'surrogateescape')
# Marker to read the default configuration: get_default_config()
GET_DEFAULT_CONFIG = object()
# Marker to ignore a configuration parameter
IGNORE_CONFIG = object()
PRE_CONFIG_COMPAT = {
'_config_init': API_COMPAT,
'allocator': PYMEM_ALLOCATOR_NOT_SET,
'parse_argv': False,
'configure_locale': True,
'coerce_c_locale': False,
'coerce_c_locale_warn': False,
'utf8_mode': True,
}
if MS_WINDOWS:
PRE_CONFIG_COMPAT.update({
'legacy_windows_fs_encoding': False,
})
PRE_CONFIG_PYTHON = dict(PRE_CONFIG_COMPAT,
_config_init=API_PYTHON,
parse_argv=True,
coerce_c_locale=GET_DEFAULT_CONFIG,
utf8_mode=GET_DEFAULT_CONFIG,
)
PRE_CONFIG_ISOLATED = dict(PRE_CONFIG_COMPAT,
_config_init=API_ISOLATED,
configure_locale=False,
isolated=True,
use_environment=False,
utf8_mode=True,
dev_mode=False,
coerce_c_locale=False,
)
COPY_PRE_CONFIG = [
'dev_mode',
'isolated',
'use_environment',
]
CONFIG_COMPAT = {
'_config_init': API_COMPAT,
'isolated': False,
'use_environment': True,
'dev_mode': False,
'install_signal_handlers': True,
'use_hash_seed': False,
'hash_seed': 0,
'int_max_str_digits': sys.int_info.default_max_str_digits,
'cpu_count': -1,
'faulthandler': False,
'tracemalloc': 0,
'perf_profiling': 0,
'import_time': 0,
'thread_inherit_context': DEFAULT_THREAD_INHERIT_CONTEXT,
'context_aware_warnings': DEFAULT_CONTEXT_AWARE_WARNINGS,
'code_debug_ranges': True,
'show_ref_count': False,
'dump_refs': False,
'dump_refs_file': None,
'malloc_stats': False,
'filesystem_encoding': GET_DEFAULT_CONFIG,
'filesystem_errors': GET_DEFAULT_CONFIG,
'pycache_prefix': None,
'program_name': GET_DEFAULT_CONFIG,
'parse_argv': False,
'argv': [""],
'orig_argv': [],
'xoptions': {},
'warnoptions': [],
'pythonpath_env': None,
'home': None,
'executable': GET_DEFAULT_CONFIG,
'base_executable': GET_DEFAULT_CONFIG,
'prefix': GET_DEFAULT_CONFIG,
'base_prefix': GET_DEFAULT_CONFIG,
'exec_prefix': GET_DEFAULT_CONFIG,
'base_exec_prefix': GET_DEFAULT_CONFIG,
'module_search_paths': GET_DEFAULT_CONFIG,
'module_search_paths_set': True,
'platlibdir': sys.platlibdir,
'stdlib_dir': GET_DEFAULT_CONFIG,
'site_import': True,
'bytes_warning': 0,
'warn_default_encoding': False,
'inspect': False,
'interactive': False,
'optimization_level': 0,
'parser_debug': False,
'write_bytecode': True,
'verbose': 0,
'quiet': False,
'remote_debug': True,
'user_site_directory': True,
'configure_c_stdio': False,
'buffered_stdio': True,
'stdio_encoding': GET_DEFAULT_CONFIG,
'stdio_errors': GET_DEFAULT_CONFIG,
'skip_source_first_line': False,
'run_command': None,
'run_module': None,
'run_filename': None,
'sys_path_0': None,
'_install_importlib': True,
'check_hash_pycs_mode': 'default',
'pathconfig_warnings': True,
'_init_main': True,
'use_frozen_modules': not support.Py_DEBUG,
'safe_path': False,
'_is_python_build': IGNORE_CONFIG,
}
if Py_STATS:
CONFIG_COMPAT['_pystats'] = False
if support.Py_DEBUG:
CONFIG_COMPAT['run_presite'] = None
if support.Py_GIL_DISABLED:
CONFIG_COMPAT['enable_gil'] = -1
CONFIG_COMPAT['tlbc_enabled'] = GET_DEFAULT_CONFIG
if MS_WINDOWS:
CONFIG_COMPAT.update({
'legacy_windows_stdio': False,
})
if support.is_apple:
CONFIG_COMPAT['use_system_logger'] = False
CONFIG_PYTHON = dict(CONFIG_COMPAT,
_config_init=API_PYTHON,
configure_c_stdio=True,
parse_argv=True,
)
CONFIG_ISOLATED = dict(CONFIG_COMPAT,
_config_init=API_ISOLATED,
isolated=True,
use_environment=False,
user_site_directory=False,
safe_path=True,
dev_mode=False,
install_signal_handlers=False,
use_hash_seed=False,
faulthandler=False,
tracemalloc=False,
perf_profiling=0,
pathconfig_warnings=False,
)
if MS_WINDOWS:
CONFIG_ISOLATED['legacy_windows_stdio'] = False
# global config
DEFAULT_GLOBAL_CONFIG = {
'Py_HasFileSystemDefaultEncoding': 0,
'Py_HashRandomizationFlag': 1,
'_Py_HasFileSystemDefaultEncodeErrors': 0,
}
COPY_GLOBAL_PRE_CONFIG = [
('Py_UTF8Mode', 'utf8_mode'),
]
COPY_GLOBAL_CONFIG = [
# Copy core config to global config for expected values
# True means that the core config value is inverted (0 => 1 and 1 => 0)
('Py_BytesWarningFlag', 'bytes_warning'),
('Py_DebugFlag', 'parser_debug'),
('Py_DontWriteBytecodeFlag', 'write_bytecode', True),
('Py_FileSystemDefaultEncodeErrors', 'filesystem_errors'),
('Py_FileSystemDefaultEncoding', 'filesystem_encoding'),
('Py_FrozenFlag', 'pathconfig_warnings', True),
('Py_IgnoreEnvironmentFlag', 'use_environment', True),
('Py_InspectFlag', 'inspect'),
('Py_InteractiveFlag', 'interactive'),
('Py_IsolatedFlag', 'isolated'),
('Py_NoSiteFlag', 'site_import', True),
('Py_NoUserSiteDirectory', 'user_site_directory', True),
('Py_OptimizeFlag', 'optimization_level'),
('Py_QuietFlag', 'quiet'),
('Py_UnbufferedStdioFlag', 'buffered_stdio', True),
('Py_VerboseFlag', 'verbose'),
]
if MS_WINDOWS:
COPY_GLOBAL_PRE_CONFIG.extend((
('Py_LegacyWindowsFSEncodingFlag', 'legacy_windows_fs_encoding'),
))
COPY_GLOBAL_CONFIG.extend((
('Py_LegacyWindowsStdioFlag', 'legacy_windows_stdio'),
))
EXPECTED_CONFIG = None
@classmethod
def tearDownClass(cls):
# clear cache
cls.EXPECTED_CONFIG = None
def main_xoptions(self, xoptions_list):
xoptions = {}
for opt in xoptions_list:
if '=' in opt:
key, value = opt.split('=', 1)
xoptions[key] = value
else:
xoptions[opt] = True
return xoptions
def _get_expected_config_impl(self):
env = remove_python_envvars()
code = textwrap.dedent('''
import json
import sys
import _testinternalcapi
configs = _testinternalcapi.get_configs()
data = json.dumps(configs)
data = data.encode('utf-8')
sys.stdout.buffer.write(data)
sys.stdout.buffer.flush()
''')
# Use -S to not import the site module: get the proper configuration
# when test_embed is run from a venv (bpo-35313)
args = [sys.executable, '-S', '-c', code]
proc = subprocess.run(args, env=env,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)
if proc.returncode:
raise Exception(f"failed to get the default config: "
f"stdout={proc.stdout!r} stderr={proc.stderr!r}")
stdout = proc.stdout.decode('utf-8')
# ignore stderr
try:
return json.loads(stdout)
except json.JSONDecodeError:
self.fail(f"fail to decode stdout: {stdout!r}")
def _get_expected_config(self):
cls = InitConfigTests
if cls.EXPECTED_CONFIG is None:
cls.EXPECTED_CONFIG = self._get_expected_config_impl()
# get a copy
configs = {}
for config_key, config_value in cls.EXPECTED_CONFIG.items():
config = {}
for key, value in config_value.items():
if isinstance(value, list):
value = value.copy()
config[key] = value
configs[config_key] = config
return configs
def get_expected_config(self, expected_preconfig, expected,
env, api, modify_path_cb=None):
configs = self._get_expected_config()
pre_config = configs['pre_config']
for key, value in expected_preconfig.items():
if value is self.GET_DEFAULT_CONFIG:
expected_preconfig[key] = pre_config[key]
if not expected_preconfig['configure_locale'] or api == API_COMPAT:
# there is no easy way to get the locale encoding before
# setlocale(LC_CTYPE, "") is called: don't test encodings
for key in ('filesystem_encoding', 'filesystem_errors',
'stdio_encoding', 'stdio_errors'):
expected[key] = self.IGNORE_CONFIG
if expected_preconfig['utf8_mode'] == 1:
if expected['filesystem_encoding'] is self.GET_DEFAULT_CONFIG:
expected['filesystem_encoding'] = 'utf-8'
if expected['filesystem_errors'] is self.GET_DEFAULT_CONFIG:
expected['filesystem_errors'] = self.UTF8_MODE_ERRORS
if expected['stdio_encoding'] is self.GET_DEFAULT_CONFIG:
expected['stdio_encoding'] = 'utf-8'
if expected['stdio_errors'] is self.GET_DEFAULT_CONFIG:
expected['stdio_errors'] = 'surrogateescape'
if MS_WINDOWS:
default_executable = self.test_exe
elif expected['program_name'] is not self.GET_DEFAULT_CONFIG:
default_executable = os.path.abspath(expected['program_name'])
else:
default_executable = os.path.join(os.getcwd(), '_testembed')
if expected['executable'] is self.GET_DEFAULT_CONFIG:
expected['executable'] = default_executable
if expected['base_executable'] is self.GET_DEFAULT_CONFIG:
expected['base_executable'] = default_executable
if expected['program_name'] is self.GET_DEFAULT_CONFIG:
expected['program_name'] = './_testembed'
config = configs['config']
for key, value in expected.items():
if value is self.GET_DEFAULT_CONFIG:
expected[key] = config[key]
if expected['module_search_paths'] is not self.IGNORE_CONFIG:
pythonpath_env = expected['pythonpath_env']
if pythonpath_env is not None:
paths = pythonpath_env.split(os.path.pathsep)
expected['module_search_paths'] = [*paths, *expected['module_search_paths']]
if modify_path_cb is not None:
expected['module_search_paths'] = expected['module_search_paths'].copy()
modify_path_cb(expected['module_search_paths'])
for key in self.COPY_PRE_CONFIG:
if key not in expected_preconfig:
expected_preconfig[key] = expected[key]
def check_pre_config(self, configs, expected):
pre_config = dict(configs['pre_config'])
for key, value in list(expected.items()):
if value is self.IGNORE_CONFIG:
pre_config.pop(key, None)
del expected[key]
self.assertEqual(pre_config, expected)
def check_config(self, configs, expected):
config = dict(configs['config'])
if MS_WINDOWS:
value = config.get(key := 'program_name')
if value and isinstance(value, str):
value = value[:len(value.lower().removesuffix('.exe'))]
if debug_build(sys.executable):
value = value[:len(value.lower().removesuffix('_d'))]
config[key] = value
for key, value in list(expected.items()):
if value is self.IGNORE_CONFIG:
config.pop(key, None)
del expected[key]
# Resolve bool/int mismatches to reduce noise in diffs
if isinstance(value, (bool, int)) and isinstance(config.get(key), (bool, int)):
expected[key] = type(config[key])(expected[key])
self.assertEqual(config, expected)
def check_global_config(self, configs):
pre_config = configs['pre_config']
config = configs['config']
expected = dict(self.DEFAULT_GLOBAL_CONFIG)
for item in self.COPY_GLOBAL_CONFIG:
if len(item) == 3:
global_key, core_key, opposite = item
expected[global_key] = 0 if config[core_key] else 1
else:
global_key, core_key = item
expected[global_key] = config[core_key]
for item in self.COPY_GLOBAL_PRE_CONFIG:
if len(item) == 3:
global_key, core_key, opposite = item
expected[global_key] = 0 if pre_config[core_key] else 1
else:
global_key, core_key = item
expected[global_key] = pre_config[core_key]
self.assertEqual(configs['global_config'], expected)
def check_all_configs(self, testname, expected_config=None,
expected_preconfig=None,
modify_path_cb=None,
stderr=None, *, api, preconfig_api=None,
env=None, ignore_stderr=False, cwd=None):
new_env = remove_python_envvars()
if env is not None:
new_env.update(env)
env = new_env
if preconfig_api is None:
preconfig_api = api
if preconfig_api == API_ISOLATED:
default_preconfig = self.PRE_CONFIG_ISOLATED
elif preconfig_api == API_PYTHON:
default_preconfig = self.PRE_CONFIG_PYTHON
else:
default_preconfig = self.PRE_CONFIG_COMPAT
if expected_preconfig is None:
expected_preconfig = {}
expected_preconfig = dict(default_preconfig, **expected_preconfig)
if expected_config is None:
expected_config = {}
if api == API_PYTHON:
default_config = self.CONFIG_PYTHON
elif api == API_ISOLATED:
default_config = self.CONFIG_ISOLATED
else:
default_config = self.CONFIG_COMPAT
expected_config = dict(default_config, **expected_config)
self.get_expected_config(expected_preconfig,
expected_config,
env,
api, modify_path_cb)
out, err = self.run_embedded_interpreter(testname,
env=env, cwd=cwd)
if stderr is None and not expected_config['verbose']:
stderr = ""
if stderr is not None and not ignore_stderr:
self.assertEqual(err.rstrip(), stderr)
try:
configs = json.loads(out)
except json.JSONDecodeError:
self.fail(f"fail to decode stdout: {out!r}")
self.check_pre_config(configs, expected_preconfig)
self.check_config(configs, expected_config)
self.check_global_config(configs)
return configs
@unittest.skipIf(support.check_bolt_optimized, "segfaults on BOLT instrumented binaries")