add test for parse test for _libgcc_mutex conda package

[bollwyvl]

Thanks for this tool!

While working on using this after getting it to install in a relaxed environment (as described in #44), I'm seeing the following issues with some non-anaconda.com packages:

conda-forge/jake-feedstock#3 (comment)

(reproduced below)

Haven't had a chance to dig into exactly what is going wrong, but though that a failing test might demonstrate what I'm seeing, after a brief scan of parse_conda_list_str_to_conda_package.

---

This is up to building locally, but trying a self-test with

conda list --explicit | jake sbom -t CONDA

yielded:

Put your Python dependencies in a chokehold

  File "$PREFIX/lib/python3.9/site-packages/jake/app.py", line 65, in execute
    exit_code: int = command.execute(arguments=self._arguments)
  File "$PREFIX/lib/python3.9/site-packages/jake/command/__init__.py", line 33, in execute
    self.handle_args()
  File "$PREFIX/lib/python3.9/site-packages/jake/command/sbom.py", line 37, in handle_args
    bom = Bom.from_parser(self._get_parser())
  File "$PREFIX/lib/python3.9/site-packages/jake/command/sbom.py", line 104, in _get_parser
    return CondaListExplicitParser(conda_data=input_data)
  File "$PREFIX/lib/python3.9/site-packages/cyclonedx/parser/conda.py", line 37, in __init__
    self._parse_to_conda_packages(data_str=conda_data)
  File "$PREFIX/lib/python3.9/site-packages/cyclonedx/parser/conda.py", line 95, in _parse_to_conda_packages
    conda_package = parse_conda_list_str_to_conda_package(conda_list_str=line)
  File "$PREFIX/lib/python3.9/site-packages/cyclonedx/utils/conda.py", line 105, in parse_conda_list_str_to_conda_package
    build_number = int(bnbs_parts.pop())
ValueError: invalid literal for int() with base 10: 'forge'
Tests failed for jake-1.1.0-py_0.tar.bz2 - moving package to /opt/conda/conda-bld/broken
WARNING:conda_build.build:Tests failed for jake-1.1.0-py_0.tar.bz2 - moving package to /opt/conda/conda-bld/broken
WARNING conda_build.build:tests_failed(2955): Tests failed for jake-1.1.0-py_0.tar.bz2 - moving package to /opt/conda/conda-bld/broken
TESTS FAILED: jake-1.1.0-py_0.tar.bz2

I'm wagering this is due to:

https://conda.anaconda.org/conda-forge/linux-64/_libgcc_mutex-0.1-conda_forge.tar.bz2

[jkowalleck]

@bollwyvl could you follow https://github.com/CycloneDX/cyclonedx-python-lib/pull/51/checks?check_run_id=4057551860
and sign your commits, in order to give consent that your code is put under the license this project follows?

[madpah]

Thanks for the example @bollwyvl - I always suspected that parsing of the Conda packages would be a bit brittle!

The specification doesn't seem to be quite verbose enough to allow us to reliably parse build_number from build, but given your example, sure we can improves from what we have today.

FYI: @jkowalleck