Adds debug message helper

lib/helpers.dart

@@ -7,9 +7,23 @@
  * supressing trailing zeroes
  */
 
+import "dart:io";
+
 import "package:audioplayers/audioplayers.dart";
 import "package:one_context/one_context.dart";
 
+
+/*
+ * Display a debug message if we are in testing mode, or running in debug mode
+ */
+void debug(dynamic msg) {
+
+  if (Platform.environment.containsKey("FLUTTER_TEST")) {
+    print("DEBUG: ${msg.toString()}");
+  }
+}
+
+
 String simpleNumberString(double number) {
   // Ref: https://stackoverflow.com/questions/55152175/how-to-remove-trailing-zeros-using-dart
 
@@ -19,7 +33,7 @@ String simpleNumberString(double number) {
 /*
  * Play an audio file from the requested path.
  *
- * Note: If OneContext module fails the 'hasConext' check,
+ * Note: If OneContext module fails the 'hasContext' check,
  *       we will not attempt to play the sound
  */
 Future<void> playAudioFile(String path) async {