blob: 9356064f1157c5292cad4be04870b443bb537ec2 [file] [log] [blame]
// 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.
// Test the event/callback protocol of the stream implementations.
// Uses a non-zero timer so it fails on d8.
library stream_state_nonzero_timer_test;
import "dart:async";
import "package:unittest/unittest.dart";
import "stream_state_helper.dart";
const ms5 = const Duration(milliseconds: 5);
// Testing pause/resume, some with non-zero duration. This only makes sense for
// non-broadcast streams, since broadcast stream subscriptions handle their
// own pauses.
main() {
var p = "StreamController";
test("$p-sub-data/pause/resume/pause/resume-done", () {
var t = new StreamProtocolTest();
t
..expectListen()
..expectData(42, () {
t.pause();
})
..expectPause(() {
t.resume();
})
..expectResume(() {
t.pause();
})
..expectPause(() {
t.resume();
})
..expectResume(() {
t.close();
})
..expectCancel()
..expectDone(t.terminate);
t
..listen()
..add(42);
});
test("$p-sub-data/pause-done", () {
var t = new StreamProtocolTest();
t
..expectListen()
..expectData(42, () {
t.pause(new Future.delayed(ms5, () => null));
})
..expectPause()
..expectCancel()
..expectDone(t.terminate);
// We are calling "close" while the controller is actually paused,
// and it will stay paused until the pending events are sent.
t
..listen()
..add(42)
..close();
});
test("$p-sub-data/pause-resume/done", () {
var t = new StreamProtocolTest();
t
..expectListen()
..expectData(42, () {
t.pause(new Future.delayed(ms5, () => null));
})
..expectPause()
..expectResume(t.close)
..expectCancel()
..expectDone(t.terminate);
t
..listen()
..add(42);
});
test("$p-sub-data/data+pause-data-resume-done", () {
var t = new StreamProtocolTest();
t
..expectListen()
..expectData(42, () {
t.add(43);
t.pause(new Future.delayed(ms5, () => null));
// Should now be paused until the future finishes.
// After that, the controller stays paused until the pending queue
// is empty.
})
..expectPause()
..expectData(43)
..expectResume(t.close)
..expectCancel()
..expectDone(t.terminate);
t
..listen()
..add(42);
});
test("$p-pause-during-callback", () {
var t = new StreamProtocolTest();
t
..expectListen()
..expectData(42, () {
t.pause();
})
..expectPause(() {
t.resume();
})
..expectResume(() {
t.pause();
t.resume();
t.close();
})
..expectCancel()
..expectDone(t.terminate);
t
..listen()
..add(42);
});
}