VM/digit_separators_t01.dart

// Copyright (c) 2025, 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.

/// @assertion Allow one or more `_`s between any two otherwise adjacent digits
/// of a `NUMBER` or `HEX_NUMBER` token.
///
/// @description Check that digit separators are allowed in VM expression
/// evaluation.
/// @author sgrekhov22@gmail.com

import 'package:vm_service/vm_service.dart';

import '../../../../pkg/vm_service/test/common/service_test_common.dart';
import '../Utils/expect.dart';
import 'digit_separators_t01_lib.dart' as testee_lib;

void main([args = const <String>[]]) =>
    IsolateTestHarness('digit_separators_t01_lib.dart', args)
        .hasStoppedAtBreakpoint()
        .addCustomTest((VmService service, IsolateRef isolateRef) async {
          final isolateId = isolateRef.id!;

          InstanceRef response =
              await service.evaluateInFrame(isolateId, 0, 'v1') as InstanceRef;
          Expect.equals('1000000000', response.valueAsString);

          response =
              await service.evaluateInFrame(isolateId, 0, 'v2') as InstanceRef;
          Expect.equals(0x40000000.toRadixString(10), response.valueAsString);

          response = await service.evaluateInFrame(
            isolateId,
            0,
            'v1 + 1_2__3',
          ) as InstanceRef;
          Expect.equals('1000000123', response.valueAsString);

          response = await service.evaluateInFrame(
            isolateId,
            0,
            'v2 + 0x1_2__3',
          ) as InstanceRef;
          Expect.equals(0x40000123.toRadixString(10), response.valueAsString);
        })
        .run(pauseOnExit: true, testeeMain: testee_lib.main);