Function capsysbinary

src/_pytest/capture.py:895–908

Enable bytes capturing of writes to ``sys.stdout`` and ``sys.stderr``. The captured output is made available via ``capsysbinary.readouterr()`` method calls, which return a ``(out, err)`` namedtuple. ``out`` and ``err`` will be ``bytes`` objects.

(request: SubRequest)

@fixture
def capsysbinary(request: SubRequest) -> Generator[CaptureFixture[bytes], None, None]:
    """Enable bytes capturing of writes to ``sys.stdout`` and ``sys.stderr``.

    The captured output is made available via ``capsysbinary.readouterr()``
    method calls, which return a ``(out, err)`` namedtuple.
    ``out`` and ``err`` will be ``bytes`` objects.
    """
    capman = request.config.pluginmanager.getplugin("capturemanager")
    capture_fixture = CaptureFixture[bytes](SysCaptureBinary, request, _ispytest=True)
    capman.set_fixture(capture_fixture)
    capture_fixture._start()
    yield capture_fixture
    capture_fixture.close()
    capman.unset_fixture()


@fixture