| // Copyright (c) 2021, 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 'dart:async'; |
| |
| // TODO(bkonyi): re-import after sample streaming is fixed. |
| // import 'package:test/test.dart'; |
| import 'package:vm_service/vm_service.dart'; |
| |
| import 'common/test_helper.dart'; |
| |
| fib(int n) { |
| if (n <= 1) { |
| return n; |
| } |
| return fib(n - 1) + fib(n - 2); |
| } |
| |
| void testMain() async { |
| int i = 10; |
| while (true) { |
| ++i; |
| // Create progressively deeper stacks to more quickly fill the sample |
| // buffer. |
| fib(i); |
| } |
| } |
| |
| late StreamSubscription sub; |
| |
| var tests = <IsolateTest>[ |
| (VmService service, IsolateRef isolate) async { |
| // TODO(bkonyi): re-enable after sample streaming is fixed. |
| // See https://github.com/dart-lang/sdk/issues/46825 |
| /*final completer = Completer<void>(); |
| int count = 0; |
| int previousOrigin = 0; |
| sub = service.onProfilerEvent.listen((event) async { |
| count++; |
| expect(event.kind, EventKind.kCpuSamples); |
| expect(event.cpuSamples, isNotNull); |
| expect(event.cpuSamples!.samples!.isNotEmpty, true); |
| if (previousOrigin != 0) { |
| expect( |
| event.cpuSamples!.timeOriginMicros! >= previousOrigin, |
| true, |
| ); |
| } |
| previousOrigin = event.cpuSamples!.timeOriginMicros!; |
| |
| if (count == 2) { |
| await sub.cancel(); |
| completer.complete(); |
| } |
| }); |
| await service.streamListen(EventStreams.kProfiler); |
| |
| await completer.future; |
| await service.streamCancel(EventStreams.kProfiler); |
| */ |
| }, |
| ]; |
| |
| main([args = const <String>[]]) async => await runIsolateTests( |
| args, |
| tests, |
| 'cpu_samples_stream_test.dart', |
| testeeConcurrent: testMain, |
| extraArgs: [ |
| '--sample-buffer-duration=1', |
| '--profile-vm', |
| ], |
| ); |