Files
sdk/tests/lib/async/timer_test.dart
T
Zachary Anderson 63c4b6b1cb Revert "Remove package:unittest from some tests"
This reverts commit dde47b2aad.

Revert "Update Dartium status for passing test"

This reverts commit d71c70d56d.

Tests failing on dart2js and async_star_pause_test is
passing on Dartium. Need to think about how to update the
status files.

Review-Url: https://codereview.chromium.org/2656503004 .
2017-01-25 11:06:58 -08:00

44 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:unittest/unittest.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));
});
}