How to use the tpot.driver._get_arg_parser function in TPOT

def test_driver_2():
    """Assert that the tpot_driver() in TPOT driver outputs normal result with verbosity = 1."""
    args_list = [
                'tests/tests.csv',
                '-is', ',',
                '-target', 'class',
                '-g', '1',
                '-p', '2',
                '-cv', '2',
                '-s',' 45',
                '-config', 'TPOT light',
                '-v', '1'
                ]
    args = _get_arg_parser().parse_args(args_list)
    with captured_output() as (out, err):
        tpot_driver(args)
    ret_stdout = out.getvalue()

    assert "TPOT settings" not in ret_stdout
    assert "Final Pareto front testing scores" not in ret_stdout
    try:
        ret_val = float(ret_stdout.split('\n')[-2].split(': ')[-1])
    except Exception:
        ret_val = -float('inf')
    assert ret_val > 0.0

def test_driver_4():
    """Assert that the tpot_driver() in TPOT driver outputs normal result with verbosity = 3."""
    args_list = [
                'tests/tests.csv',
                '-is', ',',
                '-target', 'class',
                '-g', '1',
                '-p', '2',
                '-cv', '3',
                '-s', '42',
                '-config', 'TPOT light',
                '-v', '3'
                ]
    args = _get_arg_parser().parse_args(args_list)
    with captured_output() as (out, err):
        tpot_driver(args)
    ret_stdout = out.getvalue()

    assert "TPOT settings" in ret_stdout
    assert "Final Pareto front testing scores" in ret_stdout
    try:
        ret_val = float(ret_stdout.split('\n')[-2].split('\t')[1])
    except Exception:
        ret_val = -float('inf')
    assert ret_val > 0.0

def test_driver_3():
    """Assert that the tpot_driver() in TPOT driver outputs normal result with verbosity = 2."""
    args_list = [
                'tests/tests.csv',
                '-is', ',',
                '-target', 'class',
                '-g', '1',
                '-p', '2',
                '-cv', '3',
                '-s',' 45',
                '-config', 'TPOT light',
                '-v', '2'
                ]
    args = _get_arg_parser().parse_args(args_list)
    with captured_output() as (out, err):
        tpot_driver(args)
    ret_stdout = out.getvalue()
    assert "TPOT settings" in ret_stdout
    assert "Final Pareto front testing scores" not in ret_stdout
    try:
        ret_val = float(ret_stdout.split('\n')[-2].split(': ')[-1])
    except Exception:
        ret_val = -float('inf')
    assert ret_val > 0.0

# Mis-spelled target
    args_list = [
        'tests/tests.csv',
        '-is', ',',
        '-target', 'clas'   # typo for right target 'class'
    ]
    args = _get_arg_parser().parse_args(args_list)
    assert_raises(ValueError, _read_data_file, args=args)

    # Correctly spelled target
    args_list = [
        'tests/tests.csv',
        '-is', ',',
        '-target', 'class'
    ]
    args = _get_arg_parser().parse_args(args_list)
    input_data = _read_data_file(args)

    assert isinstance(input_data, pd.DataFrame)

def setUp(self):
        self.parser = _get_arg_parser()

sklearn.__version__ <= LooseVersion("0.20.0")):
        raise nose.SkipTest("Warning raised by scikit-learn")

    args_list = [
                'tests/tests.csv',
                '-is', ',',
                '-target', 'class',
                '-o', 'test_export.py',
                '-g', '1',
                '-p', '2',
                '-cv', '3',
                '-s', '42',
                '-config', 'TPOT light',
                '-v', '0'
                ]
    args = _get_arg_parser().parse_args(args_list)
    with captured_output() as (out, err):
        tpot_driver(args)
    ret_stdout = out.getvalue()

    assert ret_stdout == ""
    assert path.isfile("test_export.py")
    remove("test_export.py") # clean up exported file