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Issue 812253002: Delete a bunch of packages that are now on GitHub. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart
Patch Set: Un-delete http Created 6 years ago
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1 // Copyright (c) 2013, 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
5 library test_utils;
6
7 import 'dart:async';
8
9 import 'package:scheduled_test/scheduled_test.dart';
10 import 'package:scheduled_test/src/utils.dart';
11 import 'package:scheduled_test/src/mock_clock.dart' as mock_clock;
12
13 import 'package:metatest/metatest.dart';
14
15 export 'package:scheduled_test/src/utils.dart';
16
17 /// Wraps [input] to provide a timeout. If [input] completes before
18 /// [milliseconds] have passed, then the return value completes in the same way.
19 /// However, if [milliseconds] pass before [input] has completed, [onTimeout] is
20 /// run and its result is passed to [input] (with chaining, if it returns a
21 /// [Future]).
22 ///
23 /// Note that timing out will not cancel the asynchronous operation behind
24 /// [input].
25 Future timeout(Future input, int milliseconds, onTimeout()) {
26 var completer = new Completer();
27 var timer = new Timer(new Duration(milliseconds: milliseconds), () {
28 chainToCompleter(syncFuture(onTimeout), completer);
29 });
30 input.then((value) {
31 if (completer.isCompleted) return;
32 timer.cancel();
33 completer.complete(value);
34 }).catchError((error, stackTrace) {
35 if (completer.isCompleted) return;
36 timer.cancel();
37 completer.completeError(error, stackTrace);
38 });
39 return completer.future;
40 }
41
42 /// Returns a [Future] that will complete in [milliseconds].
43 Future sleep(int milliseconds) {
44 var completer = new Completer();
45 mock_clock.newTimer(new Duration(milliseconds: milliseconds), () {
46 completer.complete();
47 });
48 return completer.future;
49 }
50
51 /// Sets up a timeout for every metatest in this file.
52 void setUpTimeout() {
53 metaSetUp(() {
54 // TODO(nweiz): We used to only increase the timeout to 10s for the Windows
55 // bots, but the Linux and Mac bots have started taking upwards of 5s when
56 // running pumpEventQueue, so we're increasing the timeout across the board
57 // (see issue 9248).
58 currentSchedule.timeout = new Duration(seconds: 10);
59 });
60 }
61
62 /// Creates a metatest with [body] and asserts that it passes.
63 ///
64 /// This is like [expectTestsPass], but the [test] is set up automatically.
65 void expectTestPasses(String description, body()) =>
66 expectTestsPass(description, () => test('test', body));
67
68 /// Creates a metatest that runs [testBody], captures its schedule errors, and
69 /// passes them to [validator].
70 ///
71 /// [testBody] is expected to produce an error, while [validator] is expected to
72 /// produce none.
73 void expectTestFails(String description, Future testBody(),
74 void validator(List<ScheduleError> errors)) {
75 expectTestsPass(description, () {
76 var errors;
77 test('test body', () {
78 currentSchedule.onException.schedule(() {
79 errors = currentSchedule.errors;
80 });
81
82 testBody();
83 });
84
85 test('validate errors', () {
86 expect(errors, everyElement(new isInstanceOf<ScheduleError>()));
87 validator(errors);
88 });
89 }, passing: ['validate errors']);
90 }
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