68 lines
1.6 KiB
Dart
68 lines
1.6 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.mapTo', () async {
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await expectLater(Rx.range(1, 4).mapTo(true),
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emitsInOrder(<dynamic>[true, true, true, true, emitsDone]));
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});
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test('Rx.mapTo.shouldThrow', () async {
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await expectLater(
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Rx.range(1, 4).concatWith([Stream<int>.error(Error())]).mapTo(true),
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emitsInOrder(<dynamic>[
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true,
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true,
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true,
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true,
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emitsError(TypeMatcher<Error>()),
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emitsDone
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]));
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});
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test('Rx.mapTo.reusable', () async {
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final transformer = MapToStreamTransformer<int, bool>(true);
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final stream = Rx.range(1, 4).asBroadcastStream();
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stream.transform(transformer).listen(null);
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stream.transform(transformer).listen(null);
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await expectLater(true, true);
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});
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test('Rx.mapTo.pause.resume', () async {
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late StreamSubscription<bool> subscription;
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final stream = Stream.value(1).mapTo(true);
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subscription = stream.listen(expectAsync1((value) {
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expect(value, isTrue);
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subscription.cancel();
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}, count: 1));
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subscription.pause();
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subscription.resume();
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});
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test('Rx.mapTo accidental broadcast', () async {
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final controller = StreamController<int>();
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final stream = controller.stream.mapTo(1);
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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.mapTo.nullable', () {
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nullableTest<String?>(
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(s) => s.mapTo('String'),
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);
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});
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}
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