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| 1 // Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file | |
| 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. | |
| 4 // VMOptions=--error_on_bad_type --error_on_bad_override | |
| 5 | |
| 6 import 'package:observatory/heap_snapshot.dart'; | |
| 7 import 'package:observatory/service_io.dart'; | |
| 8 import 'package:unittest/unittest.dart'; | |
| 9 import 'test_helper.dart'; | |
| 10 | |
| 11 // small example from [Lenguaer & Tarjan 1979] | |
| 12 class R { var x; var y; var z; } | |
| 13 class A { var x; } | |
| 14 class B { var x; var y; var z; } | |
| 15 class C { var x; var y; } | |
| 16 class D { var x; } | |
| 17 class E { var x; } | |
| 18 class F { var x; } | |
| 19 class G { var x; var y; } | |
| 20 class H { var x; var y; } | |
| 21 class I { var x; } | |
| 22 class J { var x; } | |
| 23 class K { var x; var y; } | |
| 24 class L { var x; } | |
| 25 | |
| 26 var r; | |
| 27 | |
| 28 buildGraph() { | |
| 29 r = new R(); | |
| 30 var a = new A(); | |
| 31 var b = new B(); | |
| 32 var c = new C(); | |
| 33 var d = new D(); | |
| 34 var e = new E(); | |
| 35 var f = new F(); | |
| 36 var g = new G(); | |
| 37 var h = new H(); | |
| 38 var i = new I(); | |
| 39 var j = new J(); | |
| 40 var k = new K(); | |
| 41 var l = new L(); | |
| 42 | |
| 43 r.x = a; r.y = b; r.z = c; | |
| 44 a.x = d; | |
| 45 b.x = a; b.y = d; b.z = e; | |
| 46 c.x = f; c.y = g; | |
| 47 d.x = l; | |
| 48 e.x = h; | |
| 49 f.x = i; | |
| 50 g.x = i; g.y = j; | |
| 51 h.x = e; h.y = k; | |
| 52 i.x = k; | |
| 53 j.x = i; | |
| 54 k.x = i; k.y = r; | |
| 55 l.x = h; | |
| 56 } | |
| 57 | |
| 58 var tests = [ | |
| 59 (Isolate isolate) async { | |
| 60 final rootLib = await isolate.rootLibrary.load(); | |
| 61 final raw = await isolate.fetchHeapSnapshot(false).last; | |
| 62 final snapshot = new HeapSnapshot(); | |
| 63 await snapshot.loadProgress(isolate, raw).last; | |
| 64 | |
| 65 node(String className) { | |
| 66 var cls = rootLib.classes.singleWhere((cls) => cls.name == className); | |
| 67 return snapshot.graph.vertices.singleWhere((v) => v.vmCid == cls.vmCid); | |
| 68 } | |
| 69 | |
| 70 expect(node('I').dominator, equals(node('R'))); | |
| 71 expect(node('K').dominator, equals(node('R'))); | |
| 72 expect(node('C').dominator, equals(node('R'))); | |
| 73 expect(node('H').dominator, equals(node('R'))); | |
| 74 expect(node('E').dominator, equals(node('R'))); | |
| 75 expect(node('A').dominator, equals(node('R'))); | |
| 76 expect(node('D').dominator, equals(node('R'))); | |
| 77 expect(node('B').dominator, equals(node('R'))); | |
| 78 | |
| 79 expect(node('F').dominator, equals(node('C'))); | |
| 80 expect(node('G').dominator, equals(node('C'))); | |
| 81 expect(node('J').dominator, equals(node('G'))); | |
| 82 expect(node('L').dominator, equals(node('D'))); | |
| 83 | |
| 84 expect(node('R'), isNotNull); // The field. | |
| 85 }, | |
| 86 ]; | |
| 87 | |
| 88 main(args) => runIsolateTests(args, tests, testeeBefore: buildGraph); | |
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Chromium Code Reviews
Issue 2502283003:
Add a version of heap snapshots that use only fields and stack frames as roots and only include ins… (Closed)
