Sigmund Cherem
fb29d0e96d
This allows to break a circular dependency between package:expect and package:async_helper, which will simplify the support for modular tests using package:modular_test. Change-Id: Ie48723d3f35d51a8fbe622e0158450e8104fe3f5 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/102140 Reviewed-by: Johnni Winther <johnniwinther@google.com>
45 lines
1.2 KiB
Dart
45 lines
1.2 KiB
Dart
// Copyright (c) 2011, 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 timer_test;
|
|
|
|
import 'dart:async';
|
|
|
|
import 'package:async_helper/async_minitest.dart';
|
|
|
|
const int STARTTIMEOUT = 1050;
|
|
const int DECREASE = 200;
|
|
const int ITERATIONS = 5;
|
|
|
|
Stopwatch stopwatch = new Stopwatch();
|
|
int timeout;
|
|
int iteration;
|
|
|
|
// Some browsers (Firefox and IE so far) can trigger too early. Add a safety
|
|
// margin. We use identical(1, 1.0) as an easy way to know if the test is
|
|
// compiled by dart2js.
|
|
int get safetyMargin => identical(1, 1.0) ? 100 : 0;
|
|
|
|
void timeoutHandler() {
|
|
expect(stopwatch.elapsedMilliseconds + safetyMargin,
|
|
greaterThanOrEqualTo(timeout));
|
|
if (iteration < ITERATIONS) {
|
|
iteration++;
|
|
timeout = timeout - DECREASE;
|
|
Duration duration = new Duration(milliseconds: timeout);
|
|
stopwatch.reset();
|
|
new Timer(duration, expectAsync(timeoutHandler));
|
|
}
|
|
}
|
|
|
|
main() {
|
|
test("timeout test", () {
|
|
iteration = 0;
|
|
timeout = STARTTIMEOUT;
|
|
Duration duration = new Duration(milliseconds: timeout);
|
|
stopwatch.start();
|
|
new Timer(duration, expectAsync(timeoutHandler));
|
|
});
|
|
}
|