Test failure

[fabaff]

Report

Lately in nixpkg we see a test failure with Python 3.10 and Python 3.11 due to a SyntaxError.

============================= test session starts ==============================
platform linux -- Python 3.10.9, pytest-7.2.0, pluggy-1.0.0
rootdir: /build/source, configfile: setup.cfg, testpaths: unit_tests
plugins: bdd-6.1.1
collected 203 items / 18 deselected / 185 selected                             

unit_tests/test_bit_field_original_value.py ....                         [  2%]
[...]
unit_tests/test_helpers_udp_checksum.py ....F...                         [ 53%]
unit_tests/test_legos.py s..                                             [ 55%]
[...]
unit_tests/test_target.py ..                                             [100%]

=================================== FAILURES ===================================
______________________________ test_msg_60_bytes _______________________________

fixturefunc = <function msg_1_byte at 0x7ffff51dfbe0>
request = <FixtureRequest for <Function test_msg_60_bytes>>
kwargs = {'context': <unit_tests.conftest.context.<locals>.Context object at 0x7ffff503d750>, 'msg': 'with 60 bytes'}

    def call_fixture_func(
        fixturefunc: "_FixtureFunc[FixtureValue]", request: FixtureRequest, kwargs
    ) -> FixtureValue:
        if is_generator(fixturefunc):
            fixturefunc = cast(
                Callable[..., Generator[FixtureValue, None, None]], fixturefunc
            )
            generator = fixturefunc(**kwargs)
            try:
                fixture_result = next(generator)
            except StopIteration:
                raise ValueError(f"{request.fixturename} did not yield a value") from None
            finalizer = functools.partial(_teardown_yield_fixture, fixturefunc, generator)
            request.addfinalizer(finalizer)
        else:
            fixturefunc = cast(Callable[..., FixtureValue], fixturefunc)
>           fixture_result = fixturefunc(**kwargs)

/nix/store/c5qvrk78x6ak9fmlzz5pmfvnhf0lj2g7-python3.10-pytest-7.2.0/lib/python3.10/site-packages/_pytest/fixtures.py:907: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
unit_tests/test_helpers_udp_checksum.py:24: in msg_1_byte
    context.msg = ast.literal_eval(msg)
/nix/store/0pyymzxf7n0fzpaqnvwv92ab72v3jq8d-python3-3.10.9/lib/python3.10/ast.py:64: in literal_eval
    node_or_string = parse(node_or_string.lstrip(" \t"), mode='eval')
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

source = 'with 60 bytes', filename = '<unknown>', mode = 'eval'

    def parse(source, filename='<unknown>', mode='exec', *,
              type_comments=False, feature_version=None):
        """
        Parse the source into an AST node.
        Equivalent to compile(source, filename, mode, PyCF_ONLY_AST).
        Pass type_comments=True to get back type comments where the syntax allows.
        """
        flags = PyCF_ONLY_AST
        if type_comments:
            flags |= PyCF_TYPE_COMMENTS
        if isinstance(feature_version, tuple):
            major, minor = feature_version  # Should be a 2-tuple.
            assert major == 3
            feature_version = minor
        elif feature_version is None:
            feature_version = -1
        # Else it should be an int giving the minor version for 3.x.
>       return compile(source, filename, mode, flags,
                       _feature_version=feature_version)
E         File "<unknown>", line 1
E           with 60 bytes
E           ^^^^
E       SyntaxError: invalid syntax

/nix/store/0pyymzxf7n0fzpaqnvwv92ab72v3jq8d-python3-3.10.9/lib/python3.10/ast.py:50: SyntaxError
=============================== warnings summary ===============================
../../nix/store/fdm6a2cfaxlbgr55xd2yhz1smgcxly71-python3.10-future-0.18.3/lib/python3.10/site-packages/future/standard_library/__init__.py:65
  /nix/store/fdm6a2cfaxlbgr55xd2yhz1smgcxly71-python3.10-future-0.18.3/lib/python3.10/site-packages/future/standard_library/__init__.py:65: DeprecationWarning: the imp module is deprecated in favour of importlib and slated for removal in Python 3.12; see the module's documentation for alternative uses
    import imp

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
=========================== short test summary info ============================
FAILED unit_tests/test_helpers_udp_checksum.py::test_msg_60_bytes -   File "<unknown>", line 1
====== 1 failed, 182 passed, 2 skipped, 18 deselected, 1 warning in 1.27s ======

Expected behavior

No response

Actual behavior

No response

Steps to reproduce the problem

boofuzz script

No response

boofuzz version

0.4.1

Python version

3.11

Platform

Linux

Anything else?

It started to fail somewhere around the end of 2022.

Every feedback would be appreciated as I'm not familiar with the code base. Thanks.

[SR4ven]

Hi @fabaff. I think this error was fixed in 6e509e7.
However, we haven't published a new version to PyPi since, so that might be the reason why you're still seeing the error.

Would you mind installing boofuzz from source (https://boofuzz.readthedocs.io/en/stable/user/install.html#from-source) and check if the error persists?

[SR4ven]

Should be fixed in v0.4.2

[fabaff]

Thanks