pq
a6e3008ded
See: https://dart-review.googlesource.com/c/sdk/+/196026 TEST=Code cleanup exclusively (sorting imports); no new tests. Change-Id: Ib07a82ff418138c542d6a83cfab9aabbb285f866 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/196180 Auto-Submit: Phil Quitslund <pquitslund@google.com> Reviewed-by: Phil Quitslund <pquitslund@google.com> Reviewed-by: Brian Wilkerson <brianwilkerson@google.com> Reviewed-by: Ben Konyi <bkonyi@google.com> Reviewed-by: Bob Nystrom <rnystrom@google.com> Commit-Queue: Phil Quitslund <pquitslund@google.com>
113 lines
3.4 KiB
Dart
113 lines
3.4 KiB
Dart
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import 'package:test/test.dart';
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import 'package:vm_service/vm_service.dart';
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import 'common/test_helper.dart';
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class Foo {
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dynamic left;
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dynamic right;
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}
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late Foo r;
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late List lst;
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void script() {
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// Create 3 instances of Foo, with out-degrees
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// 0 (for b), 1 (for a), and 2 (for staticFoo).
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r = Foo();
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var a = Foo();
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var b = Foo();
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r.left = a;
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r.right = b;
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a.left = b;
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lst = List.filled(2, null);
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lst[0] = lst; // Self-loop.
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// Larger than any other fixed-size list in a fresh heap.
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lst[1] = List.filled(1234569, null);
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}
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var tests = <IsolateTest>[
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(VmService service, IsolateRef isolate) async {
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final snapshotGraph = await HeapSnapshotGraph.getSnapshot(service, isolate);
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expect(snapshotGraph.name, "main");
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expect(snapshotGraph.flags, isNotNull);
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expect(snapshotGraph.objects, isNotNull);
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expect(snapshotGraph.objects, isNotEmpty);
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int actualShallowSize = 0;
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int actualRefCount = 0;
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snapshotGraph.objects.forEach((HeapSnapshotObject o) {
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// -1 is the CID used by the sentinel.
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expect(o.classId >= -1, isTrue);
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expect(o.data, isNotNull);
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expect(o.references, isNotNull);
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actualShallowSize += o.shallowSize;
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actualRefCount += o.references.length;
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});
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// Some accounting differences in the VM result in the global shallow size
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// often being greater than the sum of the object shallow sizes.
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expect(snapshotGraph.shallowSize >= actualShallowSize, isTrue);
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expect(snapshotGraph.shallowSize <= snapshotGraph.capacity, isTrue);
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expect(snapshotGraph.referenceCount >= actualRefCount, isTrue);
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int actualExternalSize = 0;
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expect(snapshotGraph.externalProperties, isNotEmpty);
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snapshotGraph.externalProperties.forEach((HeapSnapshotExternalProperty e) {
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actualExternalSize += e.externalSize;
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expect(e.object >= 0, isTrue);
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expect(e.name, isNotNull);
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});
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expect(snapshotGraph.externalSize, actualExternalSize);
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expect(snapshotGraph.classes, isNotEmpty);
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snapshotGraph.classes.forEach((HeapSnapshotClass c) {
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expect(c.name, isNotNull);
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expect(c.libraryName, isNotNull);
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expect(c.libraryUri, isNotNull);
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expect(c.fields, isNotNull);
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});
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// We have the class "Foo".
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int foosFound = 0;
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int fooClassId = -1;
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for (int i = 0; i < snapshotGraph.classes.length; i++) {
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HeapSnapshotClass c = snapshotGraph.classes[i];
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if (c.name == "Foo" &&
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c.libraryUri.toString().endsWith("heap_snapshot_graph_test.dart")) {
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foosFound++;
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fooClassId = i;
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}
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}
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expect(foosFound, equals(1));
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// It knows about "Foo" objects.
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foosFound = 0;
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snapshotGraph.objects.forEach((HeapSnapshotObject o) {
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if (o.classId == 0) return;
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if (o.classId == fooClassId) {
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foosFound++;
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}
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});
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expect(foosFound, equals(3));
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// Check that we can get another snapshot.
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final snapshotGraph2 =
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await HeapSnapshotGraph.getSnapshot(service, isolate);
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expect(snapshotGraph2.name, "main");
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},
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];
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main([args = const <String>[]]) async => runIsolateTests(
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args,
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tests,
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'heap_snapshot_graph_test.dart',
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testeeBefore: script,
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);
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