def test_extended_help_shown():

    # John is still not quite sure how the tool works. Therefore he

    # decides to try out the -h flag to the command.

    process = subprocess.Popen(["gimmecert", "-h"], stdout=subprocess.PIPE, stderr=subprocess.PIPE)

    stdout, stderr = process.communicate()

    stdout, stderr = stdout.decode(), stderr.decode()

    # In doing so, John is presented with much more extensive

    # instructions that provide him with better idea on how to use the

    # tool.

    assert stderr == ''

    assert process.returncode == 0

    assert "usage: gimmecert [-h]" in stdout

    assert "Examples:" in stdout

    assert "optional arguments" in stdout

    # @TODO: Can't really test this without producing errors, but

    # possibly not needed.

    # assert "positional arguments" in stdout

    # @TODO: Can't test at the moment, should be added once the first

    # commands is implemented.

    # assert "command1|command2" in stdout

Examples:

def test_parser_help_contains_examples():

    parser = gimmecert.cli.get_parser()

    assert 'Examples' in parser.description