def METHOD_NAME(testDir, input_basename, buildenv):
    """ Loads and parses the input file, runs all tests and reports results"""
    input_filename = testDir + "/" + input_basename
    raw_data = open(input_filename, encoding='utf8').read()
    input_data = json.loads(raw_data)
    failed_testcases = []
    for testObj in input_data:
        try:
            bctest(testDir, testObj, buildenv.exeext)
            logging.info("PASSED: " + testObj["description"])
        except:
            logging.info("FAILED: " + testObj["description"])
            failed_testcases.append(testObj["description"])
    if failed_testcases:
        error_message = "FAILED_TESTCASES:\n"
        error_message += pprint.pformat(failed_testcases, width=400)
        logging.error(error_message)
        sys.exit(1)
    else:
        sys.exit(0)