#142: added run_process test

Author: jorre127

lib/run_process/run_process.dart

@@ -6,25 +6,28 @@ class ProcessRunner {
   ProcessRunner._();
 
   static Future<void> runProcessVerbose(
-      String command, List<String> args) async {
+    String command,
+    List<String> args, [
+    void Function(String lines)? onLineWrite,
+  ]) async {
     print('\n$command ${args.join(' ')}\n');
     final completer = Completer<void>();
     final result = await Process.start(
       command,
       args,
       mode: ProcessStartMode.detachedWithStdio,
     );
-    print(
-        '======================================================================');
-    final subscription = result.stdout
-        .listen((codeUnits) => stdout.write(utf8.decode(codeUnits)));
+    print('======================================================================');
+    final subscription = result.stdout.listen((codeUnits) {
+      final line = utf8.decode(codeUnits);
+      onLineWrite?.call(line);
+      stdout.write(line);
+    });
     subscription.onDone(() {
-      print(
-          '======================================================================');
+      print('======================================================================');
       completer.complete();
     });
-    subscription.onError((dynamic error) =>
-        completer.completeError('Failed to complete process run: $error'));
+    subscription.onError((dynamic error) => completer.completeError('Failed to complete process run: $error'));
     return completer.future;
   }
 }

test/run_process_test.dart

@@ -0,0 +1,18 @@
+import 'package:model_generator/run_process/run_process.dart';
+import 'package:test/test.dart';
+
+void main() {
+  test('test run process', () async {
+    final lines = [];
+    await ProcessRunner.runProcessVerbose(
+      'echo',
+      [
+        'hello',
+        'world',
+      ],
+      (line) => lines.add(line),
+    );
+     
+    expect(lines.join('\n'), 'hello world\n');
+  });
+}