Files
sdk/tests/language/async_star/error_test.dart
T
Robert Nystrom b81f12a549 Migrate language_2/async_star to NNBD.
Change-Id: I0fa2ee2561dd0bc399d88868d790d56e6df3c94d
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/134940
Commit-Queue: Bob Nystrom <rnystrom@google.com>
Auto-Submit: Bob Nystrom <rnystrom@google.com>
Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
2020-02-21 00:22:06 +00:00

34 lines
885 B
Dart

// Copyright (c) 2018, 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.
import "dart:async";
import "package:async_helper/async_minitest.dart";
/// Tests for exceptions raised in async*
main() {
test('async* with Stream.first should complete with an error', () async {
var expectedStack;
Stream<int> foo() async* {
try {
throw 'oops';
} catch (e, s) {
expectedStack = s;
try {
throw 'oops again!';
} catch (e2, _) {}
await new Future.error(e, s);
}
yield 42;
}
try {
await foo().first;
fail('should not get here, an error should be thrown');
} catch (e, s) {
expect(e, 'oops');
expect(s, expectedStack);
}
});
}