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| 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 // VMOptions=--error_on_bad_type --error_on_bad_override | 4 // VMOptions=--error_on_bad_type --error_on_bad_override |
| 5 | 5 |
| 6 import 'package:observatory/heap_snapshot.dart'; | 6 import 'package:observatory/heap_snapshot.dart'; |
| 7 import 'package:observatory/models.dart' as M; | 7 import 'package:observatory/models.dart' as M; |
| 8 import 'package:observatory/object_graph.dart'; | 8 import 'package:observatory/object_graph.dart'; |
| 9 import 'package:observatory/service_io.dart'; | 9 import 'package:observatory/service_io.dart'; |
| 10 import 'package:unittest/unittest.dart'; | 10 import 'package:unittest/unittest.dart'; |
| 11 import 'test_helper.dart'; | 11 import 'test_helper.dart'; |
| 12 | 12 |
| 13 class Foo { | 13 class Foo { |
| 14 Object left; | 14 Object left; |
| 15 Object right; | 15 Object right; |
| 16 } | 16 } |
| 17 |
| 17 Foo r; | 18 Foo r; |
| 18 | 19 |
| 19 List lst; | 20 List lst; |
| 20 | 21 |
| 21 void script() { | 22 void script() { |
| 22 // Create 3 instances of Foo, with out-degrees | 23 // Create 3 instances of Foo, with out-degrees |
| 23 // 0 (for b), 1 (for a), and 2 (for staticFoo). | 24 // 0 (for b), 1 (for a), and 2 (for staticFoo). |
| 24 r = new Foo(); | 25 r = new Foo(); |
| 25 var a = new Foo(); | 26 var a = new Foo(); |
| 26 var b = new Foo(); | 27 var b = new Foo(); |
| 27 r.left = a; | 28 r.left = a; |
| 28 r.right = b; | 29 r.right = b; |
| 29 a.left = b; | 30 a.left = b; |
| 30 | 31 |
| 31 lst = new List(2); | 32 lst = new List(2); |
| 32 lst[0] = lst; // Self-loop. | 33 lst[0] = lst; // Self-loop. |
| 33 // Larger than any other fixed-size list in a fresh heap. | 34 // Larger than any other fixed-size list in a fresh heap. |
| 34 lst[1] = new List(123456); | 35 lst[1] = new List(123456); |
| 35 } | 36 } |
| 36 | 37 |
| 37 int fooId; | 38 int fooId; |
| 38 | 39 |
| 39 var tests = [ | 40 var tests = [ |
| 41 (Isolate isolate) async { |
| 42 Library lib = await isolate.rootLibrary.load(); |
| 43 expect(lib.classes.length, equals(1)); |
| 44 Class fooClass = lib.classes.first; |
| 45 fooId = fooClass.vmCid; |
| 40 | 46 |
| 41 (Isolate isolate) async { | 47 RawHeapSnapshot raw = |
| 42 Library lib = await isolate.rootLibrary.load(); | 48 await isolate.fetchHeapSnapshot(M.HeapSnapshotRoots.user, false).last; |
| 43 expect(lib.classes.length, equals(1)); | 49 HeapSnapshot snapshot = new HeapSnapshot(); |
| 44 Class fooClass = lib.classes.first; | 50 await snapshot.loadProgress(isolate, raw).last; |
| 45 fooId = fooClass.vmCid; | 51 ObjectGraph graph = snapshot.graph; |
| 46 | 52 |
| 47 RawHeapSnapshot raw = | 53 expect(fooId, isNotNull); |
| 48 await isolate.fetchHeapSnapshot(M.HeapSnapshotRoots.user, false).last; | 54 Iterable<ObjectVertex> foos = |
| 49 HeapSnapshot snapshot = new HeapSnapshot(); | 55 graph.vertices.where((ObjectVertex obj) => obj.vmCid == fooId); |
| 50 await snapshot.loadProgress(isolate, raw).last; | 56 expect(foos.length, equals(3)); |
| 51 ObjectGraph graph = snapshot.graph; | 57 expect(foos.where((obj) => obj.successors.length == 0).length, equals(1)); |
| 58 expect(foos.where((obj) => obj.successors.length == 1).length, equals(1)); |
| 59 expect(foos.where((obj) => obj.successors.length == 2).length, equals(1)); |
| 52 | 60 |
| 53 expect(fooId, isNotNull); | 61 ObjectVertex bVertex = |
| 54 Iterable<ObjectVertex> foos = graph.vertices.where( | 62 foos.where((ObjectVertex obj) => obj.successors.length == 0).first; |
| 55 (ObjectVertex obj) => obj.vmCid == fooId); | 63 ObjectVertex aVertex = |
| 56 expect(foos.length, equals(3)); | 64 foos.where((ObjectVertex obj) => obj.successors.length == 1).first; |
| 57 expect(foos.where((obj) => obj.successors.length == 0).length, | 65 ObjectVertex rVertex = |
| 58 equals(1)); | 66 foos.where((ObjectVertex obj) => obj.successors.length == 2).first; |
| 59 expect(foos.where((obj) => obj.successors.length == 1).length, | |
| 60 equals(1)); | |
| 61 expect(foos.where((obj) => obj.successors.length == 2).length, | |
| 62 equals(1)); | |
| 63 | 67 |
| 64 ObjectVertex bVertex = foos.where( | 68 // TODO(koda): Check actual byte sizes. |
| 65 (ObjectVertex obj) => obj.successors.length == 0).first; | |
| 66 ObjectVertex aVertex = foos.where( | |
| 67 (ObjectVertex obj) => obj.successors.length == 1).first; | |
| 68 ObjectVertex rVertex = foos.where( | |
| 69 (ObjectVertex obj) => obj.successors.length == 2).first; | |
| 70 | 69 |
| 71 // TODO(koda): Check actual byte sizes. | 70 expect(aVertex.retainedSize, equals(aVertex.shallowSize)); |
| 71 expect(bVertex.retainedSize, equals(bVertex.shallowSize)); |
| 72 expect( |
| 73 rVertex.retainedSize, |
| 74 equals( |
| 75 aVertex.shallowSize + bVertex.shallowSize + rVertex.shallowSize)); |
| 72 | 76 |
| 73 expect(aVertex.retainedSize, equals(aVertex.shallowSize)); | 77 Library corelib = |
| 74 expect(bVertex.retainedSize, equals(bVertex.shallowSize)); | 78 isolate.libraries.singleWhere((lib) => lib.uri == 'dart:core'); |
| 75 expect(rVertex.retainedSize, equals(aVertex.shallowSize + | 79 await corelib.load(); |
| 76 bVertex.shallowSize + | 80 Class _List = |
| 77 rVertex.shallowSize)); | 81 corelib.classes.singleWhere((cls) => cls.vmName.startsWith('_List')); |
| 78 | 82 int kArrayCid = _List.vmCid; |
| 79 Library corelib = | 83 // startsWith to ignore the private mangling |
| 80 isolate.libraries.singleWhere((lib) => lib.uri == 'dart:core'); | 84 List<ObjectVertex> lists = new List.from( |
| 81 await corelib.load(); | 85 graph.vertices.where((ObjectVertex obj) => obj.vmCid == kArrayCid)); |
| 82 Class _List = | 86 expect(lists.length >= 2, isTrue); |
| 83 corelib.classes.singleWhere((cls) => cls.vmName.startsWith('_List')); | 87 // Order by decreasing retained size. |
| 84 int kArrayCid = _List.vmCid; | 88 lists.sort((u, v) => v.retainedSize - u.retainedSize); |
| 85 // startsWith to ignore the private mangling | 89 ObjectVertex first = lists[0]; |
| 86 List<ObjectVertex> lists = new List.from(graph.vertices.where( | 90 ObjectVertex second = lists[1]; |
| 87 (ObjectVertex obj) => obj.vmCid == kArrayCid)); | 91 // Check that the short list retains more than the long list inside. |
| 88 expect(lists.length >= 2, isTrue); | 92 expect(first.successors.length, equals(2 + second.successors.length)); |
| 89 // Order by decreasing retained size. | 93 // ... and specifically, that it retains exactly itself + the long one. |
| 90 lists.sort((u, v) => v.retainedSize - u.retainedSize); | 94 expect(first.retainedSize, equals(first.shallowSize + second.shallowSize)); |
| 91 ObjectVertex first = lists[0]; | 95 }, |
| 92 ObjectVertex second = lists[1]; | |
| 93 // Check that the short list retains more than the long list inside. | |
| 94 expect(first.successors.length, | |
| 95 equals(2 + second.successors.length)); | |
| 96 // ... and specifically, that it retains exactly itself + the long one. | |
| 97 expect(first.retainedSize, | |
| 98 equals(first.shallowSize + second.shallowSize)); | |
| 99 }, | |
| 100 | |
| 101 ]; | 96 ]; |
| 102 | 97 |
| 103 main(args) => runIsolateTests(args, tests, testeeBefore: script); | 98 main(args) => runIsolateTests(args, tests, testeeBefore: script); |
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