112 lines
4 KiB
Dart
112 lines
4 KiB
Dart
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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void main() {
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test('Rx.sequenceEqual.equals', () async {
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final stream = Rx.sequenceEqual(Stream.fromIterable(const [1, 2, 3, 4, 5]),
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Stream.fromIterable(const [1, 2, 3, 4, 5]));
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await expectLater(stream, emitsInOrder(<dynamic>[true, emitsDone]));
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});
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test('Rx.sequenceEqual.diffTime.equals', () async {
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final stream = Rx.sequenceEqual(
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Stream.periodic(const Duration(milliseconds: 100), (i) => i + 1)
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.take(5),
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Stream.fromIterable(const [1, 2, 3, 4, 5]));
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await expectLater(stream, emitsInOrder(<dynamic>[true, emitsDone]));
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});
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test('Rx.sequenceEqual.equals.customCompare.equals', () async {
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final stream = Rx.sequenceEqual(Stream.fromIterable(const [1, 1, 1, 1, 1]),
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Stream.fromIterable(const [2, 2, 2, 2, 2]),
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equals: (int? a, int? b) => true);
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await expectLater(stream, emitsInOrder(<dynamic>[true, emitsDone]));
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});
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test('Rx.sequenceEqual.diffTime.notEquals', () async {
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final stream = Rx.sequenceEqual(
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Stream.periodic(const Duration(milliseconds: 100), (i) => i + 1)
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.take(5),
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Stream.fromIterable(const [1, 1, 1, 1, 1]));
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await expectLater(stream, emitsInOrder(<dynamic>[false, emitsDone]));
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});
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test('Rx.sequenceEqual.notEquals', () async {
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final stream = Rx.sequenceEqual(Stream.fromIterable(const [1, 2, 3, 4, 5]),
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Stream.fromIterable(const [1, 2, 3, 5, 4]));
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await expectLater(stream, emitsInOrder(<dynamic>[false, emitsDone]));
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});
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test('Rx.sequenceEqual.equals.customCompare.notEquals', () async {
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final stream = Rx.sequenceEqual(Stream.fromIterable(const [1, 1, 1, 1, 1]),
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Stream.fromIterable(const [1, 1, 1, 1, 1]),
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equals: (int? a, int? b) => false);
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await expectLater(stream, emitsInOrder(<dynamic>[false, emitsDone]));
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});
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test('Rx.sequenceEqual.notEquals.differentLength', () async {
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final stream = Rx.sequenceEqual(Stream.fromIterable(const [1, 2, 3, 4, 5]),
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Stream.fromIterable(const [1, 2, 3, 4, 5, 6]));
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await expectLater(stream, emitsInOrder(<dynamic>[false, emitsDone]));
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});
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test('Rx.sequenceEqual.notEquals.differentLength.customCompare.notEquals',
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() async {
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final stream = Rx.sequenceEqual(Stream.fromIterable(const [1, 2, 3, 4, 5]),
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Stream.fromIterable(const [1, 2, 3, 4, 5, 6]),
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equals: (int? a, int? b) => true);
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// expect false,
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// even if the equals handler always returns true,
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// the emitted events length is different
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await expectLater(stream, emitsInOrder(<dynamic>[false, emitsDone]));
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});
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test('Rx.sequenceEqual.equals.errors', () async {
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final stream = Rx.sequenceEqual(
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Stream<void>.error(ArgumentError('error A')),
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Stream<void>.error(ArgumentError('error A')),
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errorEquals: (e1, e2) => e1.error.toString() == e2.error.toString(),
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);
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await expectLater(stream, emitsInOrder(<dynamic>[true, emitsDone]));
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});
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test('Rx.sequenceEqual.notEquals.errors', () async {
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final stream = Rx.sequenceEqual(
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Stream<void>.error(ArgumentError('error A')),
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Stream<void>.error(ArgumentError('error B')),
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errorEquals: (e1, e2) => e1.error.toString() == e2.error.toString(),
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);
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await expectLater(stream, emitsInOrder(<dynamic>[false, emitsDone]));
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});
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test('Rx.sequenceEqual.single.subscription', () async {
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final stream = Rx.sequenceEqual(Stream.fromIterable(const [1, 2, 3, 4, 5]),
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Stream.fromIterable(const [1, 2, 3, 4, 5]));
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await expectLater(stream, emitsInOrder(<dynamic>[true, emitsDone]));
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await expectLater(() => stream.listen(null), throwsA(isStateError));
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});
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test('Rx.sequenceEqual.asBroadcastStream', () async {
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final future = Rx.sequenceEqual(Stream.fromIterable(const [1, 2, 3, 4, 5]),
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Stream.fromIterable(const [1, 2, 3, 4, 5]))
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.asBroadcastStream()
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.drain<void>();
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// listen twice on same stream
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await expectLater(future, completes);
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await expectLater(future, completes);
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});
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}
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