blob: f12387af2b2f16a92b1555248ba9a027d63db0ba [file] [log] [blame]
// Copyright (c) 2014, 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.
library vm_references_test;
import 'dart:mirrors';
import 'package:observatory_2/service_io.dart';
import 'package:test/test.dart';
import 'test_helper.dart';
class Foo {}
class Bar {}
var expando;
var key;
var value;
var weak_property;
void script() {
expando = new Expando('some debug name');
key = new Foo();
value = new Bar();
expando[key] = value;
InstanceMirror expandoMirror = reflect(expando);
LibraryMirror libcore = expandoMirror.type.owner;
var entries = expandoMirror
.getField(MirrorSystem.getSymbol('_data', libcore))
weak_property = entries.singleWhere((e) => e != null);
var tests = <IsolateTest>[
(Isolate isolate) async {
Library lib = await isolate.rootLibrary.load();
Field keyField = lib.variables.singleWhere((v) => == 'key');
await keyField.load();
Instance key = keyField.staticValue;
Field valueField = lib.variables.singleWhere((v) => == 'value');
await valueField.load();
Instance value = valueField.staticValue;
Field propField =
lib.variables.singleWhere((v) => == 'weak_property');
await propField.load();
Instance prop = propField.staticValue;
expect(key.isWeakProperty, isFalse);
expect(value.isWeakProperty, isFalse);
expect(prop.isWeakProperty, isTrue);
expect(prop.key, isNull);
expect(prop.value, isNull);
Instance loadedProp = await prop.load();
// Object ids are not canonicalized, so we rely on the key and value
// being the sole instances of their classes to test we got the objects
// we expect.
expect(loadedProp.key, isNotNull);
expect(loadedProp.key.clazz, equals(key.clazz));
expect(loadedProp.value, isNotNull);
expect(loadedProp.value.clazz, equals(value.clazz));
main(args) => runIsolateTests(args, tests, testeeBefore: script);