IDSIA / sacred

    assert not observer.failed_event.called

@pytest.mark.parametrize("capture_mode", ["no", "sys", "fd"])

def test_stdout_capturing(run, capsys, capture_mode):

    if sys.platform.startswith('win') and capture_mode == "fd":

        return  # skip fd mode under windows

    def print_mock_progress():

        for i in range(10):

            print(i, end="")

        sys.stdout.flush()

    run.main_function.side_effect = print_mock_progress

    run.capture_mode = capture_mode

    with capsys.disabled():

        run()

    if capture_mode != "no":

        assert run.captured_out == '0123456789'

    assert ex.run(named_configs=['ncfg']).result == 10

def test_captured_out_filter(ex, capsys):

    @ex.main

    def run_print_mock_progress():

        sys.stdout.write('progress 0')

        sys.stdout.flush()

        for i in range(10):

            sys.stdout.write('\b')

            sys.stdout.write("{}".format(i))

            sys.stdout.flush()

    ex.captured_out_filter = apply_backspaces_and_linefeeds

    # disable logging and set capture mode to python

    options = {'--loglevel': 'CRITICAL', '--capture': 'sys'}

    with capsys.disabled():

        assert ex.run(options=options).captured_out == 'progress 9'

def test_adding_option_hooks(ex):