Samir Jindel
77889c10e3
Change-Id: Ia2cba787ff02e1b3d26b8fbab9cc4057842bd4cc Reviewed-on: https://dart-review.googlesource.com/c/87067 Commit-Queue: Samir Jindel <sjindel@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com> Auto-Submit: Samir Jindel <sjindel@google.com>
40 lines
1.0 KiB
Dart
40 lines
1.0 KiB
Dart
// Copyright (c) 2016, 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 'dart:async';
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import 'dart:io';
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import "package:expect/expect.dart";
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int lastRetryId = 0;
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Future retry(Future fun(), {int maxCount: 10}) async {
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final int id = lastRetryId++;
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for (int i = 0; i < maxCount; i++) {
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try {
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// If there is no exception this will simply return, otherwise we keep
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// trying.
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return await fun();
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} catch (e, stack) {
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print("Failed to execute test closure (retry id: ${id}) in attempt $i "
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"(${maxCount - i} retries left).");
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print("Exception: ${e}");
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print("Stacktrace: ${stack}");
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}
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}
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return await fun();
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}
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Future throws(Function f, bool check(Object exception)) async {
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try {
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await f();
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} catch (e) {
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if (!check(e)) {
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Expect.fail('Unexpected: $e');
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}
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return;
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}
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Expect.fail('Did not throw');
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}
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