Function capsysbinary

src/_pytest/capture.py:1070–1094

r"""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. Returns an instance of :class:`C

(request: SubRequest)

@fixture
def capsysbinary(request: SubRequest) -> Generator[CaptureFixture[bytes]]:
    rclass="st">"""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.

    Returns an instance of :class:`CaptureFixture[bytes] <pytest.CaptureFixture>`.

    Example:

    .. code-block:: python

        def test_output(capsysbinary):
            print(class="st">"hello")
            captured = capsysbinary.readouterr()
            assert captured.out == bclass="st">"hello\n"
    class="st">"""
    capman: CaptureManager = request.config.pluginmanager.getplugin(class="st">"capturemanager")
    capture_fixture = CaptureFixture(SysCaptureBinary, request, _ispytest=True)
    capman.set_fixture(capture_fixture)
    capture_fixture._start()
    yield capture_fixture
    capture_fixture.close()
    capman.unset_fixture()


@fixture