| // Copyright (c) 2016, 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 observable.test.observable_test_utils; |
| |
| import 'dart:async'; |
| |
| import 'package:observable/observable.dart'; |
| import 'package:test/test.dart'; |
| |
| /// A small method to help readability. Used to cause the next "then" in a chain |
| /// to happen in the next microtask: |
| /// |
| /// future.then(newMicrotask).then(...) |
| newMicrotask(_) => new Future.value(); |
| |
| // TODO(jmesserly): use matchers when we have a way to compare ChangeRecords. |
| // For now just use the toString. |
| void expectChanges(actual, expected, {String reason}) => |
| expect('$actual', '$expected', reason: reason); |
| |
| List<ListChangeRecord> getListChangeRecords( |
| List<ListChangeRecord> changes, int index) => |
| new List.from(changes.where((ListChangeRecord c) => c.indexChanged(index))); |
| |
| List<PropertyChangeRecord> getPropertyChangeRecords( |
| List<ChangeRecord> changes, Symbol property) => |
| new List.from(changes.where( |
| (ChangeRecord c) => c is PropertyChangeRecord && c.name == property)); |