How to use the watchmaker.logger._configure_ec2_config_event_log function in watchmaker

def test_configure_ec2_config_event_log_raises_filenotfound(mocker):
    """Raise FileNotFoundError when EC2_CONFIG_EVENT_LOG is missing."""
    logger.EC2_CONFIG_EVENT_LOG = 'notreal.xml'

    with pytest.raises(FileNotFoundError):
        logger._configure_ec2_config_event_log()

def test_configure_ec2config_write_all_events(mocker):
    """Configure EC2Config Event Logging with all events."""
    data = '''
    
    
    '''

    mo_ = mocker.mock_open(read_data=data)
    mocker.patch('io.open', mo_, create=True)

    logger._configure_ec2_config_event_log()

    # Verify we opened the file twice, once for read and once for write
    assert mo_.call_args_list == [
        mocker.call(logger.EC2_CONFIG_EVENT_LOG),
        mocker.call(logger.EC2_CONFIG_EVENT_LOG, mode='wb')
    ]

    # Convert write calls to xml tree
    handle = mo_()
    result = xml.etree.ElementTree.ElementTree(
        xml.etree.ElementTree.fromstring(
            _pytest_stringify_write_calls(handle.write.call_args_list)))

    # Get all the present events
    events = result.getroot().findall('Event')
    events_present = set()

Watchmaker
        
        
            Application
            Warning
            999999
            2008-09-10T00:00:00.000Z
            Watchmaker
        
    
    '''

    mo_ = mocker.mock_open(read_data=data)
    mocker.patch('io.open', mo_, create=True)

    logger._configure_ec2_config_event_log()

    # Verify we read the data
    assert mo_.call_args_list == [
        mocker.call(logger.EC2_CONFIG_EVENT_LOG),
    ]

    # Verify we didn't write anything
    handle = mo_()
    assert handle.write.call_count == 0