Add testsuite for argument parser

lib/argparse/CLIHelper.dart

@@ -18,10 +18,10 @@ class CLIHelper {
 
       Argument arg = defaults.getArg(name)!;
       if (arg.hasValue) {
-        builder.append("=<T>");
+        builder.append("=<...>");
       }
 
-      builder.append("\t\t\t${arg.description}\n");
+      builder.append("\t\t\t${arg.description} [Default: ${arg.getValue()}]\n");
     }
 
     return builder.toString();

lib/argparse/types/String.dart

@@ -3,7 +3,8 @@ import 'package:libac_dart/argparse/Args.dart';
 class StringArgument extends Argument<String> {
   final String value;
 
-  StringArgument({required super.name, required this.value}) {
+  StringArgument(
+      {required super.name, required this.value, super.description}) {
     hasValue = value.isNotEmpty;
   }
 

pubspec.yaml

@@ -1,6 +1,6 @@
 name: libac_dart
 description: "Aria's Creations code library"
-version: 1.1.070224+2109
+version: 1.1.070224+2222
 homepage: "https://zontreck.com"
 
 

test/args_test.dart

@@ -0,0 +1,40 @@
+import 'package:libac_dart/argparse/Args.dart';
+import 'package:libac_dart/argparse/Builder.dart';
+import 'package:libac_dart/argparse/CLIHelper.dart';
+import 'package:libac_dart/argparse/types/Bool.dart';
+import 'package:libac_dart/argparse/types/String.dart';
+import 'package:test/expect.dart';
+import 'package:test/scaffolding.dart';
+
+void main() {
+  test("Test parsing a argument", () async {
+    List<String> testArgs = ["--test=12", "--enable", "--put=\"Here\""];
+
+    Arguments defaults = Arguments();
+
+    Arguments parsed = await CLIHelper.parseArgs(testArgs, defaults);
+
+    expect(true, parsed.hasArg("test"));
+    expect(12, parsed.getArg("test")!.getValue() as int);
+    expect(ArgumentType.INTEGER, parsed.getArg("test")!.getType());
+
+    expect(true, parsed.hasArg("enable"));
+    expect(ArgumentType.BOOL, parsed.getArg("enable")!.getType());
+
+    expect("Here", parsed.getArg("put")!.getValue() as String);
+  });
+
+  test("Test printing Usage", () async {
+    Arguments testArgs = ArgumentsBuilder.builder()
+        .withArgument(BoolArgument(
+            name: "use_legacy", description: "Uses legacy settings"))
+        .withArgument(StringArgument(
+            name: "output",
+            value: "./out",
+            description: "Where to put the output files"))
+        .build();
+
+    String usage = CLIHelper.makeArgCLIHelp(testArgs);
+    print("LibAC_Dart\nTestsuite - 1.0\n\n${usage}");
+  });
+}