Index: mojo/dart/testing/async_helper.dart |
diff --git a/mojo/dart/testing/async_helper.dart b/mojo/dart/testing/async_helper.dart |
deleted file mode 100644 |
index 37496bcb76bda9156c55f57b6accd2ec6b35895f..0000000000000000000000000000000000000000 |
--- a/mojo/dart/testing/async_helper.dart |
+++ /dev/null |
@@ -1,94 +0,0 @@ |
-// Copyright (c) 2013, 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. |
- |
-/// This library is used for testing asynchronous tests. |
-/// If a test is asynchronous, it needs to notify the testing driver |
-/// about this (otherwise tests may get reported as passing [after main() |
-/// finished] even if the asynchronous operations fail). |
-/// Tests which can't use the unittest framework should use the helper functions |
-/// in this library. |
-/// This library provides four methods |
-/// - asyncStart(): Needs to be called before an asynchronous operation is |
-/// scheduled. |
-/// - asyncEnd(): Needs to be called as soon as the asynchronous operation |
-/// ended. |
-/// - asyncSuccess(_): Variant of asyncEnd useful together with Future.then. |
-/// - asyncTest(f()): Helper method that wraps a computation that returns a |
-/// Future with matching calls to asyncStart() and |
-/// asyncSuccess(_). |
-/// After the last asyncStart() called was matched with a corresponding |
-/// asyncEnd() or asyncSuccess(_) call, the testing driver will be notified that |
-/// the tests is done. |
- |
-library async_helper; |
- |
-// TODO(kustermann): This is problematic because we rely on a working |
-// 'dart:isolate' (i.e. it is in particular problematic with dart2js). |
-// It would be nice if we could use a different mechanism for different |
-// runtimes. |
-import 'dart:isolate'; |
- |
-bool _initialized = false; |
-ReceivePort _port = null; |
-int _asyncLevel = 0; |
- |
-Exception _buildException(String msg) { |
- return new Exception('Fatal: $msg. This is most likely a bug in your test.'); |
-} |
- |
-/// Call this method before an asynchronous test is created. |
-void asyncStart() { |
- if (_initialized && _asyncLevel == 0) { |
- throw _buildException('asyncStart() was called even though we are done ' |
- 'with testing.'); |
- } |
- if (!_initialized) { |
- print('unittest-suite-wait-for-done'); |
- _initialized = true; |
- _port = new ReceivePort(); |
- } |
- _asyncLevel++; |
-} |
- |
-/// Call this after an asynchronous test has ended successfully. |
-void asyncEnd() { |
- if (_asyncLevel <= 0) { |
- if (!_initialized) { |
- throw _buildException('asyncEnd() was called before asyncStart().'); |
- } else { |
- throw _buildException('asyncEnd() was called more often than ' |
- 'asyncStart().'); |
- } |
- } |
- _asyncLevel--; |
- if (_asyncLevel == 0) { |
- _port.close(); |
- _port = null; |
- print('unittest-suite-success'); |
- } |
-} |
- |
-/** |
- * Call this after an asynchronous test has ended successfully. This is a helper |
- * for calling [asyncEnd]. |
- * |
- * This method intentionally has a signature that matches [:Future.then:] as a |
- * convenience for calling [asyncEnd] when a [:Future:] completes without error, |
- * like this: |
- * |
- * asyncStart(); |
- * Future result = test(); |
- * result.then(asyncSuccess); |
- */ |
-void asyncSuccess(_) => asyncEnd(); |
- |
-/** |
- * Helper method for performing asynchronous tests involving [:Future:]. |
- * |
- * [f] must return a [:Future:] for the test computation. |
- */ |
-void asyncTest(f()) { |
- asyncStart(); |
- f().then(asyncSuccess); |
-} |