add critical test, clear up messages

        # create a DB connection

        with DBPG() as data_base:

            # use the logger in the db to log some info

            data_base.logger.info("THIS IS TEST 1!")

            data_base.logger.info("THIS IS TEST 2!")

            data_base.logger.debug("THIS IS TEST 3!")

            data_base.logger.error("THIS IS TEST 4!")

            data_base.logger.info("THIS IS TEST 1! (info)")

            data_base.logger.info("<-- Info test.")

            data_base.logger.debug("<-- Debug test.")

            data_base.logger.error("<-- Error test.")

            data_base.logger.critical("<-- Critical test.")

            # verify that the log file is indeed a file

            self.assertTrue(os.path.isfile("./test.log"))

            # verify that the file exists

            found_t2 = False

            found_t3 = False

            found_t4 = False

            found_t5 = False

            # iterate through the file's lines

            for line in file.readlines():

                # if any of the test logs are found, record their existance

                if "THIS IS TEST 1!" in line:

                if "THIS IS TEST 1! (info)" in line:

                    found_t1 = True

                elif "THIS IS TEST 2!" in line and "INFO" in line:

                elif "<-- Info test." in line and "INFO" in line:

                    found_t2 = True

                elif "THIS IS TEST 3!" in line and "DEBUG" in line:

                elif "<-- Debug test." in line and "DEBUG" in line:

                    found_t3 = True

                elif "THIS IS TEST 4!" in line and "ERROR" in line:

                elif "<-- Error test." in line and "ERROR" in line:

                    found_t4 = True

                elif "<-- Critical test." in line and "CRITICAL" in line:

                    found_t5 = True

            # validate that all the test logs were found

            self.assertTrue(found_t1 and found_t2 and found_t3 and found_t4)

            self.assertTrue(found_t1 and found_t2 and found_t3 and found_t4 and found_t5)

        # create a path for the standalone log file

        path = "./standalone.log"

        # create a logger to test its abilities standalone

        logger = create_logger(path, 'a', "utf-8")

        # log some info

        logger.info("THIS IS TEST 5!")

        log_str = "THIS IS TEST 5! (info level)"

        logger.info(log_str)

        # verify that a the path is a file

        self.assertTrue(os.path.isfile(path))

        # verify that the file exists

        # verify that the data from the logger is in the file

        with open(path, 'r', encoding="utf-8") as file:

            line = file.readline()

            self.assertTrue("THIS IS TEST 5" in line)

            self.assertTrue(log_str in line)

            self.assertTrue("INFO" in line)

            file.close()