Function capsys

src/_pytest/capture.py:1007–1031

r"""Enable text capturing of writes to ``sys.stdout`` and ``sys.stderr``. The captured output is made available via ``capsys.readouterr()`` method calls, which return a ``(out, err)`` namedtuple. ``out`` and ``err`` will be ``text`` objects. Returns an instance of :class:`CaptureFi

(request: SubRequest)

@fixture
def capsys(request: SubRequest) -> Generator[CaptureFixture[str]]:
    rclass="st">"""Enable text capturing of writes to ``sys.stdout`` and ``sys.stderr``.

    The captured output is made available via ``capsys.readouterr()`` method
    calls, which return a ``(out, err)`` namedtuple.
    ``out`` and ``err`` will be ``text`` objects.

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

    Example:

    .. code-block:: python

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


@fixture