| /* |
| * Copyright (c) 2015, 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. |
| */ |
| /** |
| * @assertion Furthermore, let ak be the set of asynchronous for loops and |
| * yield-each statements enclosing sb that are enclosed in sE , 1 ≤ k ≤ m, |
| * where ak is enclosed in ak+1 . The stream subscriptions associated with aj |
| * are canceled, 1 ≤ j ≤ m, innermost first, so that aj is canceled before |
| * aj+1. |
| * |
| * @description Check various mixes of synchronous while and asynchronous for |
| * loops with single break statement. |
| * |
| * @author a.semenov@unipro.ru |
| */ |
| import 'dart:async'; |
| import '../../../Utils/expect.dart'; |
| |
| StreamController<String> newStreamControllerString(int id, List<int> log) { |
| StreamController<String> sc = new StreamController<String>(); |
| sc.add('a' + id.toString()); |
| sc.add('b' + id.toString()); |
| sc.onCancel = () { |
| log.add(id); |
| }; |
| return sc; |
| } |
| |
| Future test1() async { |
| List<int> log = []; |
| |
| L: |
| await for (String s in newStreamControllerString(0, log).stream) { |
| while (log.length < 10) { |
| break L; |
| } |
| } |
| Expect.listEquals([0], log); |
| } |
| |
| Future test2() async { |
| List<int> log = []; |
| |
| L: |
| while (log.length < 10) { |
| await for (String s in newStreamControllerString(0, log).stream) { |
| break L; |
| } |
| } |
| Expect.listEquals([0], log); |
| } |
| |
| Future test3() async { |
| List<int> log = []; |
| int i = 0; |
| |
| while (i < 2) { |
| L: |
| await for (String s in newStreamControllerString(i++, log).stream) { |
| break L; |
| } |
| } |
| Expect.listEquals([0, 1], log); |
| } |
| |
| Future test4() async { |
| List<int> log = []; |
| int i = 0; |
| |
| L: |
| await for (String s in newStreamControllerString(i++, log).stream) { |
| while (log.length < 10) { |
| await for (String s in newStreamControllerString(i++, log).stream) { |
| while (log.length < 10) { |
| await for (String s in newStreamControllerString(i++, log).stream) { |
| break L; |
| } |
| } |
| } |
| } |
| } |
| Expect.listEquals([2, 1, 0], log); |
| } |
| |
| Future test5() async { |
| List<int> log = []; |
| |
| L: |
| while (log.length < 10) { |
| await for (String s in newStreamControllerString(1, log).stream) { |
| while (log.length < 10) { |
| await for (String s in newStreamControllerString(0, log).stream) { |
| while (log.length < 10) { |
| break L; |
| } |
| } |
| } |
| } |
| } |
| Expect.listEquals([0, 1], log); |
| } |
| |
| Future test6() async { |
| List<int> log = []; |
| int i = 0; |
| |
| while (i < 3) { |
| L: |
| await for (String s in newStreamControllerString(i++, log).stream) { |
| while (log.length < 10) { |
| await for (String s in newStreamControllerString(i++, log).stream) { |
| while (log.length < 10) { |
| break L; |
| } |
| } |
| } |
| } |
| } |
| Expect.listEquals([1, 0, 3, 2], log); |
| } |
| |
| Future test7() async { |
| List<int> log = []; |
| int i = 0; |
| while (i < 4) { |
| var streamController = newStreamControllerString(i++, log); |
| await for (String s in streamController.stream) { |
| L: |
| while (log.length < 10) { |
| await for (String s in newStreamControllerString(i++, log).stream) { |
| while (log.length < 10) { |
| break L; |
| } |
| } |
| } |
| if (s.startsWith('b')) { |
| streamController.close(); |
| } |
| } |
| } |
| Expect.listEquals([1, 2, 0, 4, 5, 3], log); |
| } |
| |
| Future test8() async { |
| List<int> log = []; |
| int i = 0; |
| |
| var streamController = newStreamControllerString(i++, log); |
| await for (String s in streamController.stream) { |
| int k = 0; |
| while (k < 2) { |
| L: |
| await for (String s in newStreamControllerString(i++, log).stream) { |
| while (log.length < 10) { |
| await for (String s in newStreamControllerString(i++, log).stream) { |
| break L; |
| } |
| } |
| } |
| k++; |
| } |
| if (s.startsWith('b')) { |
| streamController.close(); |
| } |
| } |
| Expect.listEquals([2, 1, 4, 3, 6, 5, 8, 7, 0], log); |
| } |
| |
| main() { |
| asyncStart(); |
| Future.wait([ |
| test1(), test2(), test3(), test4(), |
| test5(), test6(), test7(), test8() |
| ]).then((v) => asyncEnd()); |
| } |