Update logging

src/logging.js

 /**
  * Custom logging to create more useful output.
  * Simply include this file at the top of other files to get extra logging logic.
+ *
+ * https://git.brandon-rodriguez.com/javascript/custom_logger
+ * Version 1.0
  */
 
+
 // System Imports.
 const chalk = require('chalk');
 const fs = require('fs');
@@ -17,10 +21,23 @@ const { getCurrentDate } = require('./helper_functions.js');
  * Adds DEBUG, INFO, WARNING, and ERROR output levels.
  * These all display file and line number before statement.
  *
- * General logic from https://stackoverflow.com/a/60305881
+ * The LOG output level effectively stays as-is, using JavaScripts default logging implementation.
  */
-['debug', 'info', 'warning', 'warn', 'error', 'err', 'console', 'log'].forEach((methodName) => {
-    let originalLoggingMethod = console[methodName];
+['debug', 'info', 'warning', 'warn', 'error', 'log'].forEach((methodName) => {
+
+    // Parse log method value.
+    let originalLoggingMethod = null;
+
+    // Correct "WARNING" output level value.
+    if (methodName == 'warning') {
+        originalLoggingMethod = console['warn'];
+
+    } else {
+        // Leave all other values as-is.
+        originalLoggingMethod = console[methodName];
+    }
+
+
     console[methodName] = (firstArgument, ...otherArguments) => {
 
         // Magic to get our line num and file name.
@@ -73,7 +90,7 @@ const { getCurrentDate } = require('./helper_functions.js');
             log_string = prefix.concat(firstArgument, ...otherArguments, '\n');
             logToFile(log_string, 'warn');
 
-        } else if (methodName == 'error' || methodName == 'err') {
+        } else if (methodName == 'error') {
             // Prepend text for ERROR level.
 
             // Generate and print Console text.
@@ -87,7 +104,8 @@ const { getCurrentDate } = require('./helper_functions.js');
             logToFile(log_string, 'error');
 
         } else if (methodName == 'log') {
-            //  LOG level does not get prepend text.
+            // LOG level does not get prepend text. Nor does it save to file.
+            // This is basically intended for "console only" output.
             prefix = ' ';
             console_string = prefix.concat(firstArgument, ...otherArguments);
             originalLoggingMethod(console_string);
@@ -109,19 +127,7 @@ const { getCurrentDate } = require('./helper_functions.js');
 function logToFile(log_string, level) {
     let directory = './logging/';
     let file_location = './logging/info.log';
-    let log_level = 0;
-
-    // Get appropriate level of logger. Based off of Python log levels.
-    // https://docs.python.org/3/library/logging.html
-    if (level == 'error') {
-        log_level = 40;
-    } else if (level == 'warn') {
-        log_level = 30;
-    } else if (level == 'info') {
-        log_level = 20;
-    } else if (level == 'debug') {
-        log_level = 10;
-    }
+    let log_level = getLogLevelNum(level);
 
     // Attempt to create logging folder.
     fs.mkdir(directory, err => {
@@ -170,17 +176,42 @@ function logToFile(log_string, level) {
     }
 }
 
+
+/**
+ * Get appropriate level of logger. Based off of Python log levels.
+ * https://docs.python.org/3/library/logging.html
+ */
+function getLogLevelNum(level) {
+
+    if (level == 'error') {
+        return 40;
+
+    } else if (level == 'warn') {
+        return 30;
+
+    } else if (level == 'info') {
+        return 20;
+
+    } else if (level == 'debug') {
+        return 10;
+
+    } else {
+        return 0;
+    }
+}
+
+
 console.debug('Logging has been initialized.');
 
 
 /**
  * Simple test to make sure all loging levels work as expected.
- * Should convert this to a proper unit test at a later date.
  */
 function testLogLevels() {
     console.debug('Debug level test');
     console.info('Info level test.');
     console.warn('Warn level test.');
+    console.warning('Warning level test.');
     console.error('Error level test.');
     console.log('Log/default level test.');
 }