39 lines
1.2 KiB
Dart
39 lines
1.2 KiB
Dart
import 'dart:async';
|
|
|
|
import 'package:angel3_reactivex/angel3_reactivex.dart';
|
|
import 'package:test/test.dart';
|
|
|
|
void main() {
|
|
test('Rx.concatWith', () async {
|
|
final delayedStream = Rx.timer(1, Duration(milliseconds: 10));
|
|
final immediateStream = Stream.value(2);
|
|
const expected = [1, 2];
|
|
var count = 0;
|
|
|
|
delayedStream.concatWith([immediateStream]).listen(expectAsync1((result) {
|
|
expect(result, expected[count++]);
|
|
}, count: expected.length));
|
|
});
|
|
test('Rx.concatWith accidental broadcast', () async {
|
|
final controller = StreamController<int>();
|
|
|
|
final stream = controller.stream.concatWith([Stream<int>.empty()]);
|
|
|
|
stream.listen(null);
|
|
expect(() => stream.listen(null), throwsStateError);
|
|
|
|
controller.add(1);
|
|
});
|
|
|
|
test('Rx.concatWith on broadcast stream should stay broadcast ', () async {
|
|
final delayedStream =
|
|
Rx.timer(1, Duration(milliseconds: 10)).asBroadcastStream();
|
|
final immediateStream = Stream.value(2);
|
|
final expected = [1, 2, emitsDone];
|
|
|
|
final concatenatedStream = delayedStream.concatWith([immediateStream]);
|
|
|
|
expect(concatenatedStream.isBroadcast, isTrue);
|
|
expect(concatenatedStream, emitsInOrder(expected));
|
|
});
|
|
}
|