How to use the oletools.common.log_helper.log_helper.get_or_create_silent_logger function in oletools

""" Test log_helpers """

import sys
from tests.common.log_helper import log_helper_test_imported
from oletools.common.log_helper import log_helper

DEBUG_MESSAGE = 'main: debug log'
INFO_MESSAGE = 'main: info log'
WARNING_MESSAGE = 'main: warning log'
ERROR_MESSAGE = 'main: error log'
CRITICAL_MESSAGE = 'main: critical log'
RESULT_MESSAGE = 'main: result log'
RESULT_TYPE = 'main: result'

logger = log_helper.get_or_create_silent_logger('test_main')


def init_logging_and_log(args):
    """
    Try to cover possible logging scenarios. For each scenario covered, here's the expected args and outcome:
    - Log without enabling: ['']
        * logging when being imported - should never print
    - Log as JSON without enabling: ['as-json', '']
        * logging as JSON when being imported - should never print
    - Enable and log: ['enable', '']
        * logging when being run as script - should log messages
    - Enable and log as JSON: ['as-json', 'enable', '']
        * logging as JSON when being run as script - should log messages as JSON
    - Enable, log as JSON and throw: ['enable', 'as-json', 'throw', '']
        * should produce JSON-compatible output, even after an unhandled exception
    """

def run_print():
    """This is called from test_read* tests as script. Prints & logs unicode"""
    from oletools.common.io_encoding import ensure_stdout_handles_unicode
    from oletools.common.log_helper import log_helper
    ensure_stdout_handles_unicode()
    print(u'Check: \u2713')    # print check mark

    # check logging as well
    logger = log_helper.get_or_create_silent_logger('test_encoding_handler')
    log_helper.enable_logging(False, 'debug', stream=sys.stdout)
    logger.info(u'Check: \u2713')
    return 0

Dummy file that logs messages, meant to be imported
by the main test file
"""

from oletools.common.log_helper import log_helper
import logging

DEBUG_MESSAGE = 'imported: debug log'
INFO_MESSAGE = 'imported: info log'
WARNING_MESSAGE = 'imported: warning log'
ERROR_MESSAGE = 'imported: error log'
CRITICAL_MESSAGE = 'imported: critical log'
RESULT_MESSAGE = 'imported: result log'
RESULT_TYPE = 'imported: result'

logger = log_helper.get_or_create_silent_logger('test_imported', logging.ERROR)


def log():
    logger.debug(DEBUG_MESSAGE)
    logger.info(INFO_MESSAGE)
    logger.warning(WARNING_MESSAGE)
    logger.error(ERROR_MESSAGE)
    logger.critical(CRITICAL_MESSAGE)
    logger.info(RESULT_MESSAGE, type=RESULT_TYPE)

FIELD_FILTER_ALL = 'keep all'
FIELD_FILTER_DEFAULT = FIELD_FILTER_BLACKLIST


# banner to be printed at program start
BANNER = """msodde %s - http://decalage.info/python/oletools
THIS IS WORK IN PROGRESS - Check updates regularly!
Please report any issue at https://github.com/decalage2/oletools/issues
""" % __version__

# === LOGGING =================================================================

DEFAULT_LOG_LEVEL = "warning"  # Default log level

# a global logger object used for debugging:
logger = log_helper.get_or_create_silent_logger('msodde')


# === ARGUMENT PARSING =======================================================

class ArgParserWithBanner(argparse.ArgumentParser):
    """ Print banner before showing any error """
    def error(self, message):
        print(BANNER)
        super(ArgParserWithBanner, self).error(message)


def existing_file(filename):
    """ called by argument parser to see whether given file exists """
    if not os.path.exists(filename):
        raise argparse.ArgumentTypeError('File {0} does not exist.'
                                         .format(filename))

import sys
from zipfile import ZipFile, BadZipfile, is_zipfile
from os.path import splitext
import io
import re
from oletools.common.log_helper import log_helper

# import lxml or ElementTree for XML parsing:
try:
    # lxml: best performance for XML processing
    import lxml.etree as ET
except ImportError:
    import xml.etree.cElementTree as ET

logger = log_helper.get_or_create_silent_logger('ooxml')

#: subfiles that have to be part of every ooxml file
FILE_CONTENT_TYPES = '[Content_Types].xml'
FILE_RELATIONSHIPS = '_rels/.rels'

#: start of content type attributes
CONTENT_TYPES_EXCEL = (
    'application/vnd.openxmlformats-officedocument.spreadsheetml.',
    'application/vnd.ms-excel.',
)
CONTENT_TYPES_WORD = (
    'application/vnd.openxmlformats-officedocument.wordprocessingml.',
)
CONTENT_TYPES_PPT = (
    'application/vnd.openxmlformats-officedocument.presentationml.',
)