pkg/vm_service/test/get_instances_as_array_rpc_expression_evaluation_on_internal_test.dart

// Copyright (c) 2023, the Dart project authors.  Please see the AUTHORS file
// 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.

import 'package:test/test.dart';
import 'package:vm_service/vm_service.dart';

import 'common/test_helper.dart';

final tests = <IsolateTest>[
  (VmService service, IsolateRef isolateRef) async {
    final isolateId = isolateRef.id!;

    Future<void> getInstancesAndExecuteExpression(ClassHeapStats member) async {
      final objectId = member.classRef!.id!;
      final result = await service.getInstancesAsList(isolateId, objectId);
      // This has previously caused an exception like
      // "RPCError(evaluate: Unexpected exception:
      // FormatException: Unexpected character (at offset 329)"
      try {
        await service.evaluate(isolateId, result.id!, 'this');
      } on RPCError catch (e) {
        expect(e.code, RPCErrorKind.kExpressionCompilationError.code);
        expect(
          e.details,
          contains('Cannot evaluate against a VM-internal object'),
        );
        return;
      }
      fail('Expected exception');
    }

    final result = await service.getAllocationProfile(isolateId);
    final members = result.members!;
    for (final member in members) {
      final name = member.classRef!.name!;
      if (name == 'Library') {
        await getInstancesAndExecuteExpression(member);
        break;
      }
    }
  },
];

void main([args = const <String>[]]) => runIsolateTests(
      args,
      tests,
      'get_instances_as_array_rpc_expression_evaluation_on_internal_test.dart',
    );