100 lines
3 KiB
Dart
100 lines
3 KiB
Dart
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import 'dart:async';
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import 'package:angel3_reactivex/angel3_reactivex.dart';
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import 'package:test/test.dart';
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import '../utils.dart';
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void main() {
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test('Rx.materialize.happyPath', () async {
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final stream = Stream.value(1);
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final notifications = <StreamNotification<int>>[];
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stream.materialize().listen(notifications.add, onDone: expectAsync0(() {
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expect(notifications,
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[StreamNotification.data(1), StreamNotification<int>.done()]);
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}));
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});
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test('Rx.materialize.reusable', () async {
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final transformer = MaterializeStreamTransformer<int>();
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final stream = Stream.value(1).asBroadcastStream();
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final notificationsA = <StreamNotification<int>>[],
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notificationsB = <StreamNotification<int>>[];
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stream.transform(transformer).listen(notificationsA.add,
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onDone: expectAsync0(() {
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expect(notificationsA,
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[StreamNotification.data(1), StreamNotification<int>.done()]);
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}));
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stream.transform(transformer).listen(notificationsB.add,
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onDone: expectAsync0(() {
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expect(notificationsB,
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[StreamNotification.data(1), StreamNotification<int>.done()]);
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}));
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});
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test('materializeTransformer.happyPath', () async {
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final stream = Stream.fromIterable(const [1]);
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final notifications = <StreamNotification<int>>[];
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stream
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.transform(MaterializeStreamTransformer<int>())
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.listen(notifications.add, onDone: expectAsync0(() {
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expect(notifications,
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[StreamNotification.data(1), StreamNotification<int>.done()]);
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}));
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});
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test('materializeTransformer.sadPath', () async {
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final stream = Stream<int>.error(Exception());
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final notifications = <StreamNotification<int>>[];
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stream
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.transform(MaterializeStreamTransformer<int>())
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.listen(notifications.add,
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onError: expectAsync2((Exception e, StackTrace s) {
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// Check to ensure the stream does not come to this point
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expect(true, isFalse);
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}, count: 0), onDone: expectAsync0(() {
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expect(notifications.length, 2);
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expect(notifications[0].isError, isTrue);
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expect(notifications[1].isDone, isTrue);
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}));
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});
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test('materializeTransformer.onPause.onResume', () async {
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final stream = Stream.fromIterable(const [1]);
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final notifications = <StreamNotification<int>>[];
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stream
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.transform(MaterializeStreamTransformer<int>())
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.listen(notifications.add, onDone: expectAsync0(() {
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expect(notifications, <StreamNotification<int>>[
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StreamNotification.data(1),
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StreamNotification<int>.done()
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]);
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}))
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..pause()
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..resume();
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});
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test('Rx.materialize accidental broadcast', () async {
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final controller = StreamController<int>();
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final stream = controller.stream.materialize();
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stream.listen(null);
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expect(() => stream.listen(null), throwsStateError);
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controller.add(1);
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});
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test('Rx.materialize.nullable', () {
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nullableTest<StreamNotification<String?>>(
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(s) => s.materialize(),
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);
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});
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}
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