Files
sdk/tests/lib/async/stream_transform_test.dart
T
Lasse R.H. Nielsen f8086c81ae Collect all test-related files in package:expect.
Collects files from `package:async_helper` and `tests/language`
that are generally useful, so that all test-related helpers are
in `package:expect`.

Moves the two libraries from `package:async_helper` into `package:expect`,
and the `tests/language/static_type_helper.dart` file too.

Deprecates `async_minitest.dart`, to follow `minitest.dart`,
expecting the Flutter use of it to have been fixed to not break
on deprecation (I believe Flutter no longer breaks builds on deprecations at all).

Patch 1 is the actual change.
Patch 2+4+8 is changing all existing references to the files.
Patch 6 ignores deprecation in files still using `async_minitest.dart`.

3+5+7+9 are updating this text to make the numbers match.
Then it's just test-expectations and small tweaks from there.

Change-Id: I1b665135b5fef9b9a0c3b340ffe9daf874d0174c
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/373120
Reviewed-by: Nate Bosch <nbosch@google.com>
Reviewed-by: Devon Carew <devoncarew@google.com>
Commit-Queue: Lasse Nielsen <lrn@google.com>
2024-10-11 16:53:52 +00:00

68 lines
2.1 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 stream_transform_test;
import 'dart:async';
import 'package:expect/expect.dart';
import 'package:expect/legacy/async_minitest.dart'; // ignore: deprecated_member_use
import 'event_helper.dart';
main() {
// Regression tests for http://dartbug.com/8310 and 8311
test("simpleDone", () {
StreamController c = new StreamController(sync: true);
Stream out = c.stream.handleError((x) {}).handleError((x) {});
out.listen((v) {}, onDone: expectAsync(() {}));
// Should not throw.
c.close();
});
test("with events", () {
StreamController c = new StreamController(sync: true);
Events expected = new Events.fromIterable([10, 12]);
Events input = new Events.fromIterable([1, 2, 3, 4, 5, 6, 7]);
Events actual = new Events.capture(
c.stream.map((x) => x * 2).where((x) => x > 5).skip(2).take(2));
actual.onDone(expectAsync(() {
Expect.listEquals(expected.events, actual.events);
}));
input.replay(c);
});
test("paused events", () {
StreamController c = new StreamController(sync: true);
Events expected = new Events.fromIterable([10, 12]);
Events input = new Events.fromIterable([1, 2, 3, 4, 5, 6, 7]);
Events actual = new Events.capture(
c.stream.map((x) => x * 2).where((x) => x > 5).skip(2).take(2));
actual.onDone(expectAsync(() {
Expect.listEquals(expected.events, actual.events);
}));
actual.pause();
input.replay(c);
actual.resume();
});
test("closing after done", () {
var controller = new StreamController(sync: true);
controller.stream
.map((e) => e)
.transform(
new StreamTransformer.fromHandlers(handleData: (element, sink) {
sink.add(element);
}, handleDone: (sink) {
sink.close();
}))
.listen(expectAsync((e) => expect(e, equals("foo"))));
controller.add("foo");
// Should not crash.
controller.close();
});
}