Robert Nystrom
a4b09ac192
Change-Id: I8b9b7d70abc47d672c68db65bc67d08beb7d41a7 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/142089 Commit-Queue: Bob Nystrom <rnystrom@google.com> Reviewed-by: Erik Ernst <eernst@google.com>
106 lines
2.9 KiB
Dart
106 lines
2.9 KiB
Dart
// Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import "package:async_helper/async_helper.dart";
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import 'package:expect/expect.dart';
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final list = [1, 2, 3];
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final map = {1: 1, 2: 2, 3: 3};
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final set = {1, 2, 3};
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void main() {
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asyncTest(() async {
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await testList();
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await testMap();
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await testSet();
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});
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}
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Future<void> testList() async {
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var future123 = Future.value([1, 2, 3]);
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var future1 = Future.value(1);
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// Await in iterable.
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Expect.listEquals(list, [for (var i in await future123) i]);
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// Await in for-in body.
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Expect.listEquals(list, [for (var i in [1, 2, 3]) await Future.value(i)]);
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// Await in initializer.
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Expect.listEquals(list, [for (var i = await future1; i < 4; i++) i]);
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// Await in condition.
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Expect.listEquals(list,
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[for (var i = 1; await Future.value(i < 4); i++) i]);
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// Await in increment.
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Expect.listEquals(list,
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[for (var i = 1; i < 4; await Future(() => i++)) i]);
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// Await in for body.
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Expect.listEquals(list,
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[for (var i = 1; i < 4; i++) await Future.value(i)]);
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}
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Future<void> testMap() async {
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var future123 = Future.value([1, 2, 3]);
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var future1 = Future.value(1);
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// Await in iterable.
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Expect.mapEquals(map, {for (var i in await future123) i: i});
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// Await in for-in body key.
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Expect.mapEquals(map,
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{for (var i in [1, 2, 3]) await Future.value(i): i});
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// Await in for-in body value.
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Expect.mapEquals(map,
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{for (var i in [1, 2, 3]) i: await Future.value(i)});
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// Await in initializer.
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Expect.mapEquals(map, {for (var i = await future1; i < 4; i++) i: i});
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// Await in condition.
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Expect.mapEquals(map,
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{for (var i = 1; await Future.value(i < 4); i++) i: i});
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// Await in increment.
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Expect.mapEquals(map,
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{for (var i = 1; i < 4; await Future(() => i++)) i: i});
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// Await in for body key.
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Expect.mapEquals(map,
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{for (var i = 1; i < 4; i++) await Future.value(i): i});
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// Await in for body value.
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Expect.mapEquals(map,
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{for (var i = 1; i < 4; i++) i: await Future.value(i)});
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}
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Future<void> testSet() async {
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var future123 = Future.value([1, 2, 3]);
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var future1 = Future.value(1);
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// Await in iterable.
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Expect.setEquals(set, {for (var i in await future123) i});
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// Await in for-in body.
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Expect.setEquals(set, {for (var i in [1, 2, 3]) await Future.value(i)});
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// Await in initializer.
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Expect.setEquals(set, {for (var i = await future1; i < 4; i++) i});
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// Await in condition.
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Expect.setEquals(set,
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{for (var i = 1; await Future.value(i < 4); i++) i});
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// Await in increment.
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Expect.setEquals(set,
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{for (var i = 1; i < 4; await Future(() => i++)) i});
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// Await in for body.
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Expect.setEquals(set,
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{for (var i = 1; i < 4; i++) await Future.value(i)});
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}
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