blob: 27e0d5dd3bd9285c43e75cb7dc658a4f7d2bea72 [file] [log] [blame]
// 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',
],
);