anchor.diff:      expect(json, containsPair('type', 'CodeCoverage'));
   
       final coverage = json['coverage'] as List<Map<String, dynamic>>;
  -    expect(coverage, isNotEmpty);
  -
  -    final testAppCoverage = _getScriptCoverage(coverage, 'test_app.dart')!;
  -    var hits = testAppCoverage['hits'] as List<int>;
  -    _expectHitCount(hits, 46, 0);
  -    _expectHitCount(hits, 50, 0);
  -
  -    final isolateCoverage =
  -        _getScriptCoverage(coverage, 'test_app_isolate.dart')!;
  -    hits = isolateCoverage['hits'] as List<int>;
  -    _expectHitCount(hits, 11, 1);
  -    _expectHitCount(hits, 28, 1);
  +    expect(coverage, isEmpty);
     });
   
     test('collect_coverage_api with function coverage', () async {
  
positive.code: 
    // Capture the VM service URI.
    final serviceUriCompleter = Completer<Uri>();
    final isolateIdCompleter = Completer<String>();
    sampleProcess.stdout
        .transform(utf8.decoder)
        .transform(LineSplitter())
  
negative.code:         serviceUriCompleter.complete(serviceUri);
        }
      }
    });
  
    final serviceUri = await serviceUriCompleter.future;
    final isolateIdSet = isolateIds ? <String>{} : null;
  
    return collect(serviceUri, true, true, false, scopedOutput,
        timeout: timeout,
  