Test failures with Python 3.12 due to warnings (from pytest)

Bắt đầu với testing/test_xfail_behavior.py, đặc biệt là test_xfail và bộ lọc cảnh báo của pytest, rồi tái hiện lỗi trên Python 3.12. Kiểm tra cách các cảnh báo làm thay đổi đầu ra được pytest thu thập; được xem là hoàn tất khi các assertion về hành vi xfail đều vượt qua mà đầu ra cảnh báo không liên quan không gây ra lỗi.

While technically the "problem" is in pytest itself, I think it'd be better if the test suite would be more resilient to warnings that don't affect the result.

========================================================= test session starts =========================================================
platform linux -- Python 3.12.0b1, pytest-7.3.1, pluggy-1.0.0
cachedir: .tox/py312/.pytest_cache
rootdir: /tmp/pytest-forked
configfile: tox.ini
plugins: forked-1.6.1.dev4+gd9d05e2
collected 10 items                                                                                                                    

testing/test_boxed.py ...xx.                                                                                                    [ 60%]
testing/test_xfail_behavior.py .F.F                                                                                             [100%]

============================================================== FAILURES ===============================================================
______________________________________________________ test_xfail[strict xpass] _______________________________________________________

is_crashing = False, is_strict = True, testdir = <Testdir local('/tmp/pytest-of-mgorny/pytest-2/test_xfail1')>

    @pytest.mark.parametrize(
        ("is_crashing", "is_strict"),
        (
            pytest.param(True, True, id="strict xfail"),
            pytest.param(False, True, id="strict xpass"),
            pytest.param(True, False, id="non-strict xfail"),
            pytest.param(False, False, id="non-strict xpass"),
        ),
    )
    def test_xfail(is_crashing, is_strict, testdir):
        """Test xfail/xpass/strict permutations."""
        # pylint: disable=possibly-unused-variable
        sig_num = signal.SIGTERM.numerator
    
        test_func_body = (
            "os.kill(os.getpid(), signal.SIGTERM)" if is_crashing else "assert True"
        )
    
        if is_crashing:
            # marked xfailed and crashing, no matter strict or not
            expected_letter = "x"  # XFAILED
            expected_lowercase = "xfailed"
            expected_word = "XFAIL"
        elif is_strict:
            # strict and not failing as expected should cause failure
            expected_letter = "F"  # FAILED
            expected_lowercase = "failed"
            expected_word = FAILED_WORD
        elif not is_strict:
            # non-strict and not failing as expected should cause xpass
            expected_letter = "X"  # XPASS
            expected_lowercase = "xpassed"
            expected_word = "XPASS"
    
        session_start_title = "*==== test session starts ====*"
        loaded_pytest_plugins = "plugins: forked*"
        collected_tests_num = "collected 1 item"
        expected_progress = f"test_xfail.py {expected_letter!s}*"
        failures_title = "*==== FAILURES ====*"
        failures_test_name = "*____ test_function ____*"
        failures_test_reason = "[XPASS(strict)] The process gets terminated"
        short_test_summary_title = "*==== short test summary info ====*"
        short_test_summary = f"{expected_word!s} test_xfail.py::test_function"
        if expected_lowercase == "xpassed":
            # XPASS wouldn't have the crash message from
            # pytest-forked because the crash doesn't happen
            short_test_summary = " ".join(
                (
                    short_test_summary,
                    "The process gets terminated",
                )
            )
        reason_string = (
            f"reason: The process gets terminated; "
            f"pytest-forked reason: "
            f"*:*: running the test CRASHED with signal {sig_num:d}"
        )
        if expected_lowercase == "xfailed" and PYTEST_GTE_7_2:
            short_test_summary += " - " + reason_string
        total_summary_line = f"*==== 1 {expected_lowercase!s} in 0.*s* ====*"
    
        expected_lines = (
            session_start_title,
            loaded_pytest_plugins,
            collected_tests_num,
            expected_progress,
        )
        if expected_word == FAILED_WORD:
            # XPASS(strict)
            expected_lines += (
                failures_title,
                failures_test_name,
                failures_test_reason,
            )
        expected_lines += (
            short_test_summary_title,
            short_test_summary,
        )
        if expected_lowercase == "xpassed" and expected_word == FAILED_WORD:
            # XPASS(strict)
            expected_lines += ("  " + reason_string,)
        expected_lines += (total_summary_line,)
    
        test_module = testdir.makepyfile(
            f"""
            import os
            import signal
    
            import pytest
    
            # The current implementation emits RuntimeWarning.
            pytestmark = pytest.mark.filterwarnings('ignore:pytest-forked xfail')
    
            @pytest.mark.xfail(
                reason='The process gets terminated',
                strict={is_strict!s},
            )
            @pytest.mark.forked
            def test_function():
                {test_func_body!s}
            """
        )
    
        pytest_run_result = testdir.runpytest(test_module, "-ra")
>       pytest_run_result.stdout.fnmatch_lines(expected_lines)
E       Failed: fnmatch: '*==== test session starts ====*'
E          with: '========================================================= test session starts ========================================================='
E       nomatch: 'plugins: forked*'
E           and: 'platform linux -- Python 3.12.0b1, pytest-7.3.1, pluggy-1.0.0'
E           and: 'rootdir: /tmp/pytest-of-mgorny/pytest-2/test_xfail1'
E       fnmatch: 'plugins: forked*'
E          with: 'plugins: forked-1.6.1.dev4+gd9d05e2'
E       exact match: 'collected 1 item'
E       nomatch: 'test_xfail.py F*'
E           and: ''
E       fnmatch: 'test_xfail.py F*'
E          with: 'test_xfail.py F                                                                                                                 [100%]'
E       nomatch: '*==== FAILURES ====*'
E           and: ''
E       fnmatch: '*==== FAILURES ====*'
E          with: '============================================================== FAILURES ==============================================================='
E       fnmatch: '*____ test_function ____*'
E          with: '____________________________________________________________ test_function ____________________________________________________________'
E       exact match: '[XPASS(strict)] The process gets terminated'
E       nomatch: '*==== short test summary info ====*'
E           and: '========================================================== warnings summary ==========================================================='
E           and: '../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:927'
E           and: '  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:927: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead'
E           and: '    assertmsg = ast.Str("")'
E           and: ''
E           and: '../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:929'
E           and: '  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:929: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead'
E           and: '    template = ast.BinOp(assertmsg, ast.Add(), ast.Str(explanation))'
E           and: ''
E           and: '../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817'
E           and: '  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead'
E           and: '    keys = [ast.Str(key) for key in current.keys()]'
E           and: ''
E           and: '../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:941'
E           and: '  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:941: DeprecationWarning: ast.NameConstant is deprecated and will be removed in Python 3.14; use ast.Constant instead'
E           and: '    clear = ast.Assign(variables, ast.NameConstant(None))'
E           and: ''
E           and: '-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html'
E       fnmatch: '*==== short test summary info ====*'
E          with: '======================================================= short test summary info ======================================================='
E       exact match: 'FAILED test_xfail.py::test_function'
E       nomatch: '*==== 1 failed in 0.*s* ====*'
E           and: '==================================================== 1 failed, 4 warnings in 0.01s ===================================================='
E       remains unmatched: '*==== 1 failed in 0.*s* ====*'

/tmp/pytest-forked/testing/test_xfail_behavior.py:121: Failed
-------------------------------------------------------- Captured stdout call ---------------------------------------------------------
========================================================= test session starts =========================================================
platform linux -- Python 3.12.0b1, pytest-7.3.1, pluggy-1.0.0
rootdir: /tmp/pytest-of-mgorny/pytest-2/test_xfail1
plugins: forked-1.6.1.dev4+gd9d05e2
collected 1 item

test_xfail.py F                                                                                                                 [100%]

============================================================== FAILURES ===============================================================
____________________________________________________________ test_function ____________________________________________________________
[XPASS(strict)] The process gets terminated
========================================================== warnings summary ===========================================================
../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:927
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:927: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    assertmsg = ast.Str("")

../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:929
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:929: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    template = ast.BinOp(assertmsg, ast.Add(), ast.Str(explanation))

../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    keys = [ast.Str(key) for key in current.keys()]

../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:941
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:941: DeprecationWarning: ast.NameConstant is deprecated and will be removed in Python 3.14; use ast.Constant instead
    clear = ast.Assign(variables, ast.NameConstant(None))

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
======================================================= short test summary info =======================================================
FAILED test_xfail.py::test_function
==================================================== 1 failed, 4 warnings in 0.01s ====================================================
____________________________________________________ test_xfail[non-strict xpass] _____________________________________________________

is_crashing = False, is_strict = False, testdir = <Testdir local('/tmp/pytest-of-mgorny/pytest-2/test_xfail3')>

    @pytest.mark.parametrize(
        ("is_crashing", "is_strict"),
        (
            pytest.param(True, True, id="strict xfail"),
            pytest.param(False, True, id="strict xpass"),
            pytest.param(True, False, id="non-strict xfail"),
            pytest.param(False, False, id="non-strict xpass"),
        ),
    )
    def test_xfail(is_crashing, is_strict, testdir):
        """Test xfail/xpass/strict permutations."""
        # pylint: disable=possibly-unused-variable
        sig_num = signal.SIGTERM.numerator
    
        test_func_body = (
            "os.kill(os.getpid(), signal.SIGTERM)" if is_crashing else "assert True"
        )
    
        if is_crashing:
            # marked xfailed and crashing, no matter strict or not
            expected_letter = "x"  # XFAILED
            expected_lowercase = "xfailed"
            expected_word = "XFAIL"
        elif is_strict:
            # strict and not failing as expected should cause failure
            expected_letter = "F"  # FAILED
            expected_lowercase = "failed"
            expected_word = FAILED_WORD
        elif not is_strict:
            # non-strict and not failing as expected should cause xpass
            expected_letter = "X"  # XPASS
            expected_lowercase = "xpassed"
            expected_word = "XPASS"
    
        session_start_title = "*==== test session starts ====*"
        loaded_pytest_plugins = "plugins: forked*"
        collected_tests_num = "collected 1 item"
        expected_progress = f"test_xfail.py {expected_letter!s}*"
        failures_title = "*==== FAILURES ====*"
        failures_test_name = "*____ test_function ____*"
        failures_test_reason = "[XPASS(strict)] The process gets terminated"
        short_test_summary_title = "*==== short test summary info ====*"
        short_test_summary = f"{expected_word!s} test_xfail.py::test_function"
        if expected_lowercase == "xpassed":
            # XPASS wouldn't have the crash message from
            # pytest-forked because the crash doesn't happen
            short_test_summary = " ".join(
                (
                    short_test_summary,
                    "The process gets terminated",
                )
            )
        reason_string = (
            f"reason: The process gets terminated; "
            f"pytest-forked reason: "
            f"*:*: running the test CRASHED with signal {sig_num:d}"
        )
        if expected_lowercase == "xfailed" and PYTEST_GTE_7_2:
            short_test_summary += " - " + reason_string
        total_summary_line = f"*==== 1 {expected_lowercase!s} in 0.*s* ====*"
    
        expected_lines = (
            session_start_title,
            loaded_pytest_plugins,
            collected_tests_num,
            expected_progress,
        )
        if expected_word == FAILED_WORD:
            # XPASS(strict)
            expected_lines += (
                failures_title,
                failures_test_name,
                failures_test_reason,
            )
        expected_lines += (
            short_test_summary_title,
            short_test_summary,
        )
        if expected_lowercase == "xpassed" and expected_word == FAILED_WORD:
            # XPASS(strict)
            expected_lines += ("  " + reason_string,)
        expected_lines += (total_summary_line,)
    
        test_module = testdir.makepyfile(
            f"""
            import os
            import signal
    
            import pytest
    
            # The current implementation emits RuntimeWarning.
            pytestmark = pytest.mark.filterwarnings('ignore:pytest-forked xfail')
    
            @pytest.mark.xfail(
                reason='The process gets terminated',
                strict={is_strict!s},
            )
            @pytest.mark.forked
            def test_function():
                {test_func_body!s}
            """
        )
    
        pytest_run_result = testdir.runpytest(test_module, "-ra")
>       pytest_run_result.stdout.fnmatch_lines(expected_lines)
E       Failed: fnmatch: '*==== test session starts ====*'
E          with: '========================================================= test session starts ========================================================='
E       nomatch: 'plugins: forked*'
E           and: 'platform linux -- Python 3.12.0b1, pytest-7.3.1, pluggy-1.0.0'
E           and: 'rootdir: /tmp/pytest-of-mgorny/pytest-2/test_xfail3'
E       fnmatch: 'plugins: forked*'
E          with: 'plugins: forked-1.6.1.dev4+gd9d05e2'
E       exact match: 'collected 1 item'
E       nomatch: 'test_xfail.py X*'
E           and: ''
E       fnmatch: 'test_xfail.py X*'
E          with: 'test_xfail.py X                                                                                                                 [100%]'
E       nomatch: '*==== short test summary info ====*'
E           and: ''
E           and: '========================================================== warnings summary ==========================================================='
E           and: '../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:927'
E           and: '  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:927: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead'
E           and: '    assertmsg = ast.Str("")'
E           and: ''
E           and: '../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:929'
E           and: '  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:929: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead'
E           and: '    template = ast.BinOp(assertmsg, ast.Add(), ast.Str(explanation))'
E           and: ''
E           and: '../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817'
E           and: '  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead'
E           and: '    keys = [ast.Str(key) for key in current.keys()]'
E           and: ''
E           and: '../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:941'
E           and: '  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:941: DeprecationWarning: ast.NameConstant is deprecated and will be removed in Python 3.14; use ast.Constant instead'
E           and: '    clear = ast.Assign(variables, ast.NameConstant(None))'
E           and: ''
E           and: '-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html'
E       fnmatch: '*==== short test summary info ====*'
E          with: '======================================================= short test summary info ======================================================='
E       exact match: 'XPASS test_xfail.py::test_function The process gets terminated'
E       nomatch: '*==== 1 xpassed in 0.*s* ====*'
E           and: '=================================================== 1 xpassed, 4 warnings in 0.01s ===================================================='
E       remains unmatched: '*==== 1 xpassed in 0.*s* ====*'

/tmp/pytest-forked/testing/test_xfail_behavior.py:121: Failed
-------------------------------------------------------- Captured stdout call ---------------------------------------------------------
========================================================= test session starts =========================================================
platform linux -- Python 3.12.0b1, pytest-7.3.1, pluggy-1.0.0
rootdir: /tmp/pytest-of-mgorny/pytest-2/test_xfail3
plugins: forked-1.6.1.dev4+gd9d05e2
collected 1 item

test_xfail.py X                                                                                                                 [100%]

========================================================== warnings summary ===========================================================
../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:927
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:927: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    assertmsg = ast.Str("")

../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:929
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:929: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    template = ast.BinOp(assertmsg, ast.Add(), ast.Str(explanation))

../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    keys = [ast.Str(key) for key in current.keys()]

../../../pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:941
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:941: DeprecationWarning: ast.NameConstant is deprecated and will be removed in Python 3.14; use ast.Constant instead
    clear = ast.Assign(variables, ast.NameConstant(None))

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
======================================================= short test summary info =======================================================
XPASS test_xfail.py::test_function The process gets terminated
=================================================== 1 xpassed, 4 warnings in 0.01s ====================================================
========================================================== warnings summary ===========================================================
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:683
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:683
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:683
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:683: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    and isinstance(item.value, ast.Str)

.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:685
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:685
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:685: DeprecationWarning: Attribute s is deprecated and will be removed in Python 3.14; use value instead
    doc = item.value.s

.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:965
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:965
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:965
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:965
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:965
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:965: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    inlocs = ast.Compare(ast.Str(name.id), [ast.In()], [locs])

.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:968
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:968
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:968
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:968
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:968
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:968: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    expr = ast.IfExp(test, self.display(name), ast.Str(name.id))

.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:1102
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:1102
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:1102: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    syms.append(ast.Str(sym))

.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:1104
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:1104
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:1104: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    expls.append(ast.Str(expl))

.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:817: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    keys = [ast.Str(key) for key in current.keys()]

.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:927
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:927
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:927: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    assertmsg = ast.Str("")

.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:929
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:929
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:929
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:929: DeprecationWarning: ast.Str is deprecated and will be removed in Python 3.14; use ast.Constant instead
    template = ast.BinOp(assertmsg, ast.Add(), ast.Str(explanation))

.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:941
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:941
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:941
.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:941
  /tmp/pytest-forked/.tox/py312/lib/python3.12/site-packages/_pytest/assertion/rewrite.py:941: DeprecationWarning: ast.NameConstant is deprecated and will be removed in Python 3.14; use ast.Constant instead
    clear = ast.Assign(variables, ast.NameConstant(None))

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
======================================================= short test summary info =======================================================
FAILED testing/test_xfail_behavior.py::test_xfail[strict xpass] - Failed: fnmatch: '*==== test session starts ====*'
FAILED testing/test_xfail_behavior.py::test_xfail[non-strict xpass] - Failed: fnmatch: '*==== test session starts ====*'
XFAIL testing/test_boxed.py::test_functional_boxed_capturing[sys] - capture cleanup needed
XFAIL testing/test_boxed.py::test_functional_boxed_capturing[fd] - capture cleanup needed
========================================= 2 failed, 6 passed, 2 xfailed, 37 warnings in 0.66s =========================================