671 lines
23 KiB
Python
671 lines
23 KiB
Python
# Run the tests in Programs/_testembed.c (tests for the CPython embedding APIs)
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from test import support
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import unittest
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from collections import namedtuple
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import json
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import os
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import platform
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import re
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import subprocess
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import sys
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import textwrap
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MS_WINDOWS = (os.name == 'nt')
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class EmbeddingTestsMixin:
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def setUp(self):
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here = os.path.abspath(__file__)
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basepath = os.path.dirname(os.path.dirname(os.path.dirname(here)))
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exename = "_testembed"
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if MS_WINDOWS:
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ext = ("_d" if "_d" in sys.executable else "") + ".exe"
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exename += ext
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exepath = os.path.dirname(sys.executable)
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else:
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exepath = os.path.join(basepath, "Programs")
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self.test_exe = exe = os.path.join(exepath, exename)
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if not os.path.exists(exe):
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self.skipTest("%r doesn't exist" % exe)
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# This is needed otherwise we get a fatal error:
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# "Py_Initialize: Unable to get the locale encoding
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# LookupError: no codec search functions registered: can't find encoding"
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self.oldcwd = os.getcwd()
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os.chdir(basepath)
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def tearDown(self):
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os.chdir(self.oldcwd)
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def run_embedded_interpreter(self, *args, env=None):
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"""Runs a test in the embedded interpreter"""
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cmd = [self.test_exe]
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cmd.extend(args)
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if env is not None and MS_WINDOWS:
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# Windows requires at least the SYSTEMROOT environment variable to
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# start Python.
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env = env.copy()
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env['SYSTEMROOT'] = os.environ['SYSTEMROOT']
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p = subprocess.Popen(cmd,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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universal_newlines=True,
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env=env)
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try:
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(out, err) = p.communicate()
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except:
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p.terminate()
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p.wait()
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raise
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if p.returncode != 0 and support.verbose:
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print(f"--- {cmd} failed ---")
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print(f"stdout:\n{out}")
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print(f"stderr:\n{err}")
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print(f"------")
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self.assertEqual(p.returncode, 0,
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"bad returncode %d, stderr is %r" %
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(p.returncode, err))
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return out, err
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def run_repeated_init_and_subinterpreters(self):
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out, err = self.run_embedded_interpreter("repeated_init_and_subinterpreters")
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self.assertEqual(err, "")
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# The output from _testembed looks like this:
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# --- Pass 0 ---
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# interp 0 <0x1cf9330>, thread state <0x1cf9700>: id(modules) = 139650431942728
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# interp 1 <0x1d4f690>, thread state <0x1d35350>: id(modules) = 139650431165784
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# interp 2 <0x1d5a690>, thread state <0x1d99ed0>: id(modules) = 139650413140368
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# interp 3 <0x1d4f690>, thread state <0x1dc3340>: id(modules) = 139650412862200
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# interp 0 <0x1cf9330>, thread state <0x1cf9700>: id(modules) = 139650431942728
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# --- Pass 1 ---
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# ...
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interp_pat = (r"^interp (\d+) <(0x[\dA-F]+)>, "
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r"thread state <(0x[\dA-F]+)>: "
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r"id\(modules\) = ([\d]+)$")
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Interp = namedtuple("Interp", "id interp tstate modules")
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numloops = 0
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current_run = []
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for line in out.splitlines():
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if line == "--- Pass {} ---".format(numloops):
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self.assertEqual(len(current_run), 0)
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if support.verbose > 1:
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print(line)
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numloops += 1
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continue
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self.assertLess(len(current_run), 5)
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match = re.match(interp_pat, line)
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if match is None:
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self.assertRegex(line, interp_pat)
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# Parse the line from the loop. The first line is the main
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# interpreter and the 3 afterward are subinterpreters.
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interp = Interp(*match.groups())
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if support.verbose > 1:
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print(interp)
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self.assertTrue(interp.interp)
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self.assertTrue(interp.tstate)
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self.assertTrue(interp.modules)
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current_run.append(interp)
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# The last line in the loop should be the same as the first.
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if len(current_run) == 5:
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main = current_run[0]
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self.assertEqual(interp, main)
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yield current_run
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current_run = []
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class EmbeddingTests(EmbeddingTestsMixin, unittest.TestCase):
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def test_subinterps_main(self):
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for run in self.run_repeated_init_and_subinterpreters():
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main = run[0]
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self.assertEqual(main.id, '0')
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def test_subinterps_different_ids(self):
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for run in self.run_repeated_init_and_subinterpreters():
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main, *subs, _ = run
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mainid = int(main.id)
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for i, sub in enumerate(subs):
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self.assertEqual(sub.id, str(mainid + i + 1))
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def test_subinterps_distinct_state(self):
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for run in self.run_repeated_init_and_subinterpreters():
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main, *subs, _ = run
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if '0x0' in main:
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# XXX Fix on Windows (and other platforms): something
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# is going on with the pointers in Programs/_testembed.c.
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# interp.interp is 0x0 and interp.modules is the same
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# between interpreters.
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raise unittest.SkipTest('platform prints pointers as 0x0')
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for sub in subs:
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# A new subinterpreter may have the same
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# PyInterpreterState pointer as a previous one if
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# the earlier one has already been destroyed. So
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# we compare with the main interpreter. The same
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# applies to tstate.
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self.assertNotEqual(sub.interp, main.interp)
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self.assertNotEqual(sub.tstate, main.tstate)
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self.assertNotEqual(sub.modules, main.modules)
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def test_forced_io_encoding(self):
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# Checks forced configuration of embedded interpreter IO streams
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env = dict(os.environ, PYTHONIOENCODING="utf-8:surrogateescape")
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out, err = self.run_embedded_interpreter("forced_io_encoding", env=env)
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if support.verbose > 1:
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print()
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print(out)
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print(err)
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expected_stream_encoding = "utf-8"
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expected_errors = "surrogateescape"
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expected_output = '\n'.join([
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"--- Use defaults ---",
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"Expected encoding: default",
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"Expected errors: default",
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"stdin: {in_encoding}:{errors}",
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"stdout: {out_encoding}:{errors}",
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"stderr: {out_encoding}:backslashreplace",
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"--- Set errors only ---",
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"Expected encoding: default",
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"Expected errors: ignore",
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"stdin: {in_encoding}:ignore",
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"stdout: {out_encoding}:ignore",
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"stderr: {out_encoding}:backslashreplace",
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"--- Set encoding only ---",
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"Expected encoding: iso8859-1",
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"Expected errors: default",
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"stdin: iso8859-1:{errors}",
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"stdout: iso8859-1:{errors}",
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"stderr: iso8859-1:backslashreplace",
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"--- Set encoding and errors ---",
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"Expected encoding: iso8859-1",
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"Expected errors: replace",
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"stdin: iso8859-1:replace",
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"stdout: iso8859-1:replace",
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"stderr: iso8859-1:backslashreplace"])
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expected_output = expected_output.format(
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in_encoding=expected_stream_encoding,
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out_encoding=expected_stream_encoding,
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errors=expected_errors)
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# This is useful if we ever trip over odd platform behaviour
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self.maxDiff = None
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self.assertEqual(out.strip(), expected_output)
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def test_pre_initialization_api(self):
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"""
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Checks some key parts of the C-API that need to work before the runtine
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is initialized (via Py_Initialize()).
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"""
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env = dict(os.environ, PYTHONPATH=os.pathsep.join(sys.path))
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out, err = self.run_embedded_interpreter("pre_initialization_api", env=env)
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if MS_WINDOWS:
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expected_path = self.test_exe
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else:
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expected_path = os.path.join(os.getcwd(), "spam")
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expected_output = f"sys.executable: {expected_path}\n"
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self.assertIn(expected_output, out)
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self.assertEqual(err, '')
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def test_pre_initialization_sys_options(self):
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"""
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Checks that sys.warnoptions and sys._xoptions can be set before the
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runtime is initialized (otherwise they won't be effective).
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"""
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env = dict(os.environ, PYTHONPATH=os.pathsep.join(sys.path))
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out, err = self.run_embedded_interpreter(
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"pre_initialization_sys_options", env=env)
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expected_output = (
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"sys.warnoptions: ['once', 'module', 'default']\n"
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"sys._xoptions: {'not_an_option': '1', 'also_not_an_option': '2'}\n"
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"warnings.filters[:3]: ['default', 'module', 'once']\n"
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)
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self.assertIn(expected_output, out)
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self.assertEqual(err, '')
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def test_bpo20891(self):
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"""
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bpo-20891: Calling PyGILState_Ensure in a non-Python thread before
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calling PyEval_InitThreads() must not crash. PyGILState_Ensure() must
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call PyEval_InitThreads() for us in this case.
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"""
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out, err = self.run_embedded_interpreter("bpo20891")
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self.assertEqual(out, '')
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self.assertEqual(err, '')
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def test_initialize_twice(self):
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"""
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bpo-33932: Calling Py_Initialize() twice should do nothing (and not
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crash!).
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"""
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out, err = self.run_embedded_interpreter("initialize_twice")
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self.assertEqual(out, '')
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self.assertEqual(err, '')
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def test_initialize_pymain(self):
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"""
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bpo-34008: Calling Py_Main() after Py_Initialize() must not fail.
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"""
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out, err = self.run_embedded_interpreter("initialize_pymain")
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self.assertEqual(out.rstrip(), "Py_Main() after Py_Initialize: sys.argv=['-c', 'arg2']")
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self.assertEqual(err, '')
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def test_run_main(self):
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out, err = self.run_embedded_interpreter("run_main")
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self.assertEqual(out.rstrip(), "_Py_RunMain(): sys.argv=['-c', 'arg2']")
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self.assertEqual(err, '')
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class InitConfigTests(EmbeddingTestsMixin, unittest.TestCase):
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maxDiff = 4096
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UTF8_MODE_ERRORS = ('surrogatepass' if MS_WINDOWS else 'surrogateescape')
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# core config
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UNTESTED_CORE_CONFIG = (
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# FIXME: untested core configuration variables
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'dll_path',
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'executable',
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'module_search_paths',
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)
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# Mark config which should be get by get_default_config()
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GET_DEFAULT_CONFIG = object()
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DEFAULT_PRE_CONFIG = {
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'allocator': None,
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'coerce_c_locale': 0,
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'coerce_c_locale_warn': 0,
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'utf8_mode': 0,
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}
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COPY_PRE_CONFIG = [
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'dev_mode',
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'isolated',
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'use_environment',
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]
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DEFAULT_CORE_CONFIG = {
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'isolated': 0,
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'use_environment': 1,
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'dev_mode': 0,
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'install_signal_handlers': 1,
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'use_hash_seed': 0,
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'hash_seed': 0,
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'faulthandler': 0,
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'tracemalloc': 0,
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'import_time': 0,
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'show_ref_count': 0,
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'show_alloc_count': 0,
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'dump_refs': 0,
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'malloc_stats': 0,
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'filesystem_encoding': GET_DEFAULT_CONFIG,
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'filesystem_errors': GET_DEFAULT_CONFIG,
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'pycache_prefix': None,
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'program_name': './_testembed',
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'argv': [""],
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'program': '',
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'xoptions': [],
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'warnoptions': [],
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'module_search_path_env': None,
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'home': None,
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'prefix': GET_DEFAULT_CONFIG,
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'base_prefix': GET_DEFAULT_CONFIG,
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'exec_prefix': GET_DEFAULT_CONFIG,
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'base_exec_prefix': GET_DEFAULT_CONFIG,
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'site_import': 1,
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'bytes_warning': 0,
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'inspect': 0,
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'interactive': 0,
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'optimization_level': 0,
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'parser_debug': 0,
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'write_bytecode': 1,
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'verbose': 0,
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'quiet': 0,
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'user_site_directory': 1,
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'buffered_stdio': 1,
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'stdio_encoding': GET_DEFAULT_CONFIG,
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'stdio_errors': GET_DEFAULT_CONFIG,
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'skip_source_first_line': 0,
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'run_command': None,
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'run_module': None,
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'run_filename': None,
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'_install_importlib': 1,
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'check_hash_pycs_mode': 'default',
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'_frozen': 0,
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}
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if MS_WINDOWS:
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DEFAULT_PRE_CONFIG.update({
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'legacy_windows_fs_encoding': 0,
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})
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DEFAULT_CORE_CONFIG.update({
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'legacy_windows_stdio': 0,
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})
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# global config
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DEFAULT_GLOBAL_CONFIG = {
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'Py_HasFileSystemDefaultEncoding': 0,
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'Py_HashRandomizationFlag': 1,
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'_Py_HasFileSystemDefaultEncodeErrors': 0,
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}
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COPY_GLOBAL_PRE_CONFIG = [
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('Py_UTF8Mode', 'utf8_mode'),
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]
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COPY_GLOBAL_CONFIG = [
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# Copy core config to global config for expected values
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# True means that the core config value is inverted (0 => 1 and 1 => 0)
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('Py_BytesWarningFlag', 'bytes_warning'),
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('Py_DebugFlag', 'parser_debug'),
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('Py_DontWriteBytecodeFlag', 'write_bytecode', True),
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('Py_FileSystemDefaultEncodeErrors', 'filesystem_errors'),
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('Py_FileSystemDefaultEncoding', 'filesystem_encoding'),
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('Py_FrozenFlag', '_frozen'),
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('Py_IgnoreEnvironmentFlag', 'use_environment', True),
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('Py_InspectFlag', 'inspect'),
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('Py_InteractiveFlag', 'interactive'),
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('Py_IsolatedFlag', 'isolated'),
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('Py_NoSiteFlag', 'site_import', True),
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('Py_NoUserSiteDirectory', 'user_site_directory', True),
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('Py_OptimizeFlag', 'optimization_level'),
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('Py_QuietFlag', 'quiet'),
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('Py_UnbufferedStdioFlag', 'buffered_stdio', True),
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('Py_VerboseFlag', 'verbose'),
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]
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if MS_WINDOWS:
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COPY_GLOBAL_PRE_CONFIG.extend((
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('Py_LegacyWindowsFSEncodingFlag', 'legacy_windows_fs_encoding'),
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))
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COPY_GLOBAL_CONFIG.extend((
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('Py_LegacyWindowsStdioFlag', 'legacy_windows_stdio'),
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))
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def main_xoptions(self, xoptions_list):
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xoptions = {}
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for opt in xoptions_list:
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if '=' in opt:
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key, value = opt.split('=', 1)
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xoptions[key] = value
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else:
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xoptions[opt] = True
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return xoptions
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def get_expected_config(self, expected, env):
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expected = dict(self.DEFAULT_CORE_CONFIG, **expected)
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code = textwrap.dedent('''
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import json
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import sys
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data = {
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'stdio_encoding': sys.stdout.encoding,
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'stdio_errors': sys.stdout.errors,
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'prefix': sys.prefix,
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'base_prefix': sys.base_prefix,
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'exec_prefix': sys.exec_prefix,
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'base_exec_prefix': sys.base_exec_prefix,
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'filesystem_encoding': sys.getfilesystemencoding(),
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'filesystem_errors': sys.getfilesystemencodeerrors(),
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}
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data = json.dumps(data)
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data = data.encode('utf-8')
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sys.stdout.buffer.write(data)
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sys.stdout.buffer.flush()
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''')
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# Use -S to not import the site module: get the proper configuration
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# when test_embed is run from a venv (bpo-35313)
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args = (sys.executable, '-S', '-c', code)
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env = dict(env)
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if not expected['isolated']:
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env['PYTHONCOERCECLOCALE'] = '0'
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env['PYTHONUTF8'] = '0'
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proc = subprocess.run(args, env=env,
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stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT)
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if proc.returncode:
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raise Exception(f"failed to get the default config: "
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f"stdout={proc.stdout!r} stderr={proc.stderr!r}")
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stdout = proc.stdout.decode('utf-8')
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try:
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config = json.loads(stdout)
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except json.JSONDecodeError:
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self.fail(f"fail to decode stdout: {stdout!r}")
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for key, value in expected.items():
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if value is self.GET_DEFAULT_CONFIG:
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expected[key] = config[key]
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return expected
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def check_pre_config(self, config, expected):
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pre_config = dict(config['pre_config'])
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core_config = dict(config['core_config'])
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self.assertEqual(pre_config, expected)
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def check_core_config(self, config, expected):
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core_config = dict(config['core_config'])
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for key in self.UNTESTED_CORE_CONFIG:
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core_config.pop(key, None)
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self.assertEqual(core_config, expected)
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def check_global_config(self, config):
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pre_config = config['pre_config']
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core_config = config['core_config']
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expected = dict(self.DEFAULT_GLOBAL_CONFIG)
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for item in self.COPY_GLOBAL_CONFIG:
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if len(item) == 3:
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global_key, core_key, opposite = item
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expected[global_key] = 0 if core_config[core_key] else 1
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else:
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global_key, core_key = item
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expected[global_key] = core_config[core_key]
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for item in self.COPY_GLOBAL_PRE_CONFIG:
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if len(item) == 3:
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global_key, core_key, opposite = item
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expected[global_key] = 0 if pre_config[core_key] else 1
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else:
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global_key, core_key = item
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expected[global_key] = pre_config[core_key]
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self.assertEqual(config['global_config'], expected)
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def check_config(self, testname, expected_config, expected_preconfig):
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env = dict(os.environ)
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# Remove PYTHON* environment variables to get deterministic environment
|
|
for key in list(env):
|
|
if key.startswith('PYTHON'):
|
|
del env[key]
|
|
# Disable C locale coercion and UTF-8 mode to not depend
|
|
# on the current locale
|
|
env['PYTHONCOERCECLOCALE'] = '0'
|
|
env['PYTHONUTF8'] = '0'
|
|
|
|
out, err = self.run_embedded_interpreter(testname, env=env)
|
|
# Ignore err
|
|
try:
|
|
config = json.loads(out)
|
|
except json.JSONDecodeError:
|
|
self.fail(f"fail to decode stdout: {out!r}")
|
|
|
|
expected_preconfig = dict(self.DEFAULT_PRE_CONFIG, **expected_preconfig)
|
|
expected_config = self.get_expected_config(expected_config, env)
|
|
for key in self.COPY_PRE_CONFIG:
|
|
if key not in expected_preconfig:
|
|
expected_preconfig[key] = expected_config[key]
|
|
|
|
self.check_pre_config(config, expected_preconfig)
|
|
self.check_core_config(config, expected_config)
|
|
self.check_global_config(config)
|
|
|
|
def test_init_default_config(self):
|
|
self.check_config("init_default_config", {}, {})
|
|
|
|
def test_init_global_config(self):
|
|
preconfig = {
|
|
'utf8_mode': 1,
|
|
}
|
|
config = {
|
|
'program_name': './globalvar',
|
|
'site_import': 0,
|
|
'bytes_warning': 1,
|
|
'warnoptions': ['default::BytesWarning'],
|
|
'inspect': 1,
|
|
'interactive': 1,
|
|
'optimization_level': 2,
|
|
'write_bytecode': 0,
|
|
'verbose': 1,
|
|
'quiet': 1,
|
|
'buffered_stdio': 0,
|
|
|
|
'stdio_encoding': 'utf-8',
|
|
'stdio_errors': 'surrogateescape',
|
|
'filesystem_encoding': 'utf-8',
|
|
'filesystem_errors': self.UTF8_MODE_ERRORS,
|
|
'user_site_directory': 0,
|
|
}
|
|
self.check_config("init_global_config", config, preconfig)
|
|
|
|
def test_init_from_config(self):
|
|
preconfig = {
|
|
'allocator': 'malloc',
|
|
'utf8_mode': 1,
|
|
}
|
|
config = {
|
|
'install_signal_handlers': 0,
|
|
'use_hash_seed': 1,
|
|
'hash_seed': 123,
|
|
'tracemalloc': 2,
|
|
'import_time': 1,
|
|
'show_ref_count': 1,
|
|
'show_alloc_count': 1,
|
|
'malloc_stats': 1,
|
|
|
|
'stdio_encoding': 'iso8859-1',
|
|
'stdio_errors': 'replace',
|
|
'filesystem_encoding': 'utf-8',
|
|
'filesystem_errors': self.UTF8_MODE_ERRORS,
|
|
|
|
'pycache_prefix': 'conf_pycache_prefix',
|
|
'program_name': './conf_program_name',
|
|
'argv': ['-c', 'arg2'],
|
|
'program': 'conf_program',
|
|
'xoptions': ['core_xoption1=3', 'core_xoption2=', 'core_xoption3'],
|
|
'warnoptions': ['error::ResourceWarning', 'default::BytesWarning'],
|
|
'run_command': 'pass\n',
|
|
|
|
'site_import': 0,
|
|
'bytes_warning': 1,
|
|
'inspect': 1,
|
|
'interactive': 1,
|
|
'optimization_level': 2,
|
|
'write_bytecode': 0,
|
|
'verbose': 1,
|
|
'quiet': 1,
|
|
'buffered_stdio': 0,
|
|
'user_site_directory': 0,
|
|
'faulthandler': 1,
|
|
|
|
'check_hash_pycs_mode': 'always',
|
|
}
|
|
self.check_config("init_from_config", config, preconfig)
|
|
|
|
INIT_ENV_PRECONFIG = {
|
|
'allocator': 'malloc',
|
|
}
|
|
INIT_ENV_CONFIG = {
|
|
'use_hash_seed': 1,
|
|
'hash_seed': 42,
|
|
'tracemalloc': 2,
|
|
'import_time': 1,
|
|
'malloc_stats': 1,
|
|
'inspect': 1,
|
|
'optimization_level': 2,
|
|
'pycache_prefix': 'env_pycache_prefix',
|
|
'write_bytecode': 0,
|
|
'verbose': 1,
|
|
'buffered_stdio': 0,
|
|
'stdio_encoding': 'iso8859-1',
|
|
'stdio_errors': 'replace',
|
|
'user_site_directory': 0,
|
|
'faulthandler': 1,
|
|
}
|
|
|
|
def test_init_env(self):
|
|
self.check_config("init_env", self.INIT_ENV_CONFIG, self.INIT_ENV_PRECONFIG)
|
|
|
|
def test_init_env_dev_mode(self):
|
|
preconfig = dict(self.INIT_ENV_PRECONFIG,
|
|
allocator='debug')
|
|
config = dict(self.INIT_ENV_CONFIG,
|
|
dev_mode=1,
|
|
warnoptions=['default'])
|
|
self.check_config("init_env_dev_mode", config, preconfig)
|
|
|
|
def test_init_env_dev_mode_alloc(self):
|
|
preconfig = dict(self.INIT_ENV_PRECONFIG,
|
|
allocator='malloc')
|
|
config = dict(self.INIT_ENV_CONFIG,
|
|
dev_mode=1,
|
|
warnoptions=['default'])
|
|
self.check_config("init_env_dev_mode_alloc", config, preconfig)
|
|
|
|
def test_init_dev_mode(self):
|
|
preconfig = {
|
|
'allocator': 'debug',
|
|
}
|
|
config = {
|
|
'faulthandler': 1,
|
|
'dev_mode': 1,
|
|
'warnoptions': ['default'],
|
|
}
|
|
self.check_config("init_dev_mode", config, preconfig)
|
|
|
|
def test_init_isolated(self):
|
|
preconfig = {}
|
|
config = {
|
|
'isolated': 1,
|
|
'use_environment': 0,
|
|
'user_site_directory': 0,
|
|
}
|
|
self.check_config("init_isolated", config, preconfig)
|
|
|
|
def test_preinit_isolated1(self):
|
|
# _PyPreConfig.isolated=1, _PyCoreConfig.isolated not set
|
|
preconfig = {}
|
|
config = {
|
|
'isolated': 1,
|
|
'use_environment': 0,
|
|
'user_site_directory': 0,
|
|
}
|
|
self.check_config("preinit_isolated1", config, preconfig)
|
|
|
|
def test_preinit_isolated2(self):
|
|
# _PyPreConfig.isolated=0, _PyCoreConfig.isolated=1
|
|
preconfig = {}
|
|
config = {
|
|
'isolated': 1,
|
|
'use_environment': 0,
|
|
'user_site_directory': 0,
|
|
}
|
|
self.check_config("preinit_isolated2", config, preconfig)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|