diff --git a/pkg/vm_service/test/mark_main_isolate_as_system_isolate_test.dart b/pkg/vm_service/test/mark_main_isolate_as_system_isolate_test.dart
index c69323d1be8..fb97b827892 100644
--- a/pkg/vm_service/test/mark_main_isolate_as_system_isolate_test.dart
+++ b/pkg/vm_service/test/mark_main_isolate_as_system_isolate_test.dart
@@ -2,6 +2,11 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+// VMOptions=--enable-isolate-groups
+// VMOptions=--no-enable-isolate-groups
+
+import 'dart:developer';
+import 'dart:io';
 import 'dart:isolate';
 import 'package:test/test.dart';
 import 'package:vm_service/vm_service.dart' as service;
@@ -9,31 +14,33 @@ import 'package:vm_service/vm_service.dart' as service;
 import 'common/service_test_common.dart';
 import 'common/test_helper.dart';
 
-foo(void _) async {
-  print('non system isolate started');
-  while (true) {}
-}
-
 testMain() async {
-  await Isolate.spawn<void>(foo, null);
-  print('started system isolate main');
-  while (true) {}
+  await Isolate.spawnUri(Platform.script, ['--selftest'], null,
+      debugName: 'foo');
 }
 
-var tests = <VMTest>[
-  (service.VmService service) async {
+var tests = <IsolateTest>[
+  hasStoppedAtBreakpoint,
+  (service.VmService service, _) async {
     final vm = await service.getVM();
     expect(vm.isolates!.length, 1);
     expect(vm.isolates!.first.name, 'foo');
     expect(vm.systemIsolates!.length, greaterThanOrEqualTo(1));
     expect(vm.systemIsolates!.where((e) => e.name == 'main').isNotEmpty, true);
-  }
+  },
+  resumeIsolate,
 ];
 
-main([args = const <String>[]]) => runVMTests(
-      args,
-      tests,
-      'mark_main_isolate_as_system_isolate_test.dart',
-      testeeConcurrent: testMain,
-      extraArgs: ['--mark-main-isolate-as-system-isolate'],
-    );
+main([args = const <String>[]]) {
+  if (args.length > 0 && args[0] == '--selftest') {
+    debugger();
+    return;
+  }
+  return runIsolateTests(
+    args,
+    tests,
+    'mark_main_isolate_as_system_isolate_test.dart',
+    testeeConcurrent: testMain,
+    extraArgs: ['--mark-main-isolate-as-system-isolate'],
+  );
+}