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- // Licensed to the .NET Foundation under one or more agreements.
- // The .NET Foundation licenses this file to you under the Apache 2.0 License.
- // See the LICENSE file in the project root for more information.
- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Reactive.Concurrency;
- using System.Reactive.Linq;
- using System.Threading;
- using Microsoft.Reactive.Testing;
- using ReactiveTests.Dummies;
- using Xunit;
- namespace ReactiveTests.Tests
- {
- #region + Count +
- public class SkipLastTest : ReactiveTest
- {
- [Fact]
- public void SkipLast_ArgumentChecking()
- {
- ReactiveAssert.Throws<ArgumentNullException>(() => Observable.SkipLast<int>(null, 0));
- ReactiveAssert.Throws<ArgumentOutOfRangeException>(() => Observable.SkipLast(DummyObservable<int>.Instance, -1));
- }
- [Fact]
- public void SkipLast_Zero_Completed()
- {
- var scheduler = new TestScheduler();
- var xs = scheduler.CreateHotObservable(
- OnNext(180, 1),
- OnNext(210, 2),
- OnNext(250, 3),
- OnNext(270, 4),
- OnNext(310, 5),
- OnNext(360, 6),
- OnNext(380, 7),
- OnNext(410, 8),
- OnNext(590, 9),
- OnCompleted<int>(650)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(0)
- );
- res.Messages.AssertEqual(
- OnNext(210, 2),
- OnNext(250, 3),
- OnNext(270, 4),
- OnNext(310, 5),
- OnNext(360, 6),
- OnNext(380, 7),
- OnNext(410, 8),
- OnNext(590, 9),
- OnCompleted<int>(650)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 650)
- );
- }
- [Fact]
- public void SkipLast_Zero_Error()
- {
- var scheduler = new TestScheduler();
- var ex = new Exception();
- var xs = scheduler.CreateHotObservable(
- OnNext(180, 1),
- OnNext(210, 2),
- OnNext(250, 3),
- OnNext(270, 4),
- OnNext(310, 5),
- OnNext(360, 6),
- OnNext(380, 7),
- OnNext(410, 8),
- OnNext(590, 9),
- OnError<int>(650, ex)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(0)
- );
- res.Messages.AssertEqual(
- OnNext(210, 2),
- OnNext(250, 3),
- OnNext(270, 4),
- OnNext(310, 5),
- OnNext(360, 6),
- OnNext(380, 7),
- OnNext(410, 8),
- OnNext(590, 9),
- OnError<int>(650, ex)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 650)
- );
- }
- [Fact]
- public void SkipLast_Zero_Disposed()
- {
- var scheduler = new TestScheduler();
- var xs = scheduler.CreateHotObservable(
- OnNext(180, 1),
- OnNext(210, 2),
- OnNext(250, 3),
- OnNext(270, 4),
- OnNext(310, 5),
- OnNext(360, 6),
- OnNext(380, 7),
- OnNext(410, 8),
- OnNext(590, 9)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(0)
- );
- res.Messages.AssertEqual(
- OnNext(210, 2),
- OnNext(250, 3),
- OnNext(270, 4),
- OnNext(310, 5),
- OnNext(360, 6),
- OnNext(380, 7),
- OnNext(410, 8),
- OnNext(590, 9)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 1000)
- );
- }
- [Fact]
- public void SkipLast_One_Completed()
- {
- var scheduler = new TestScheduler();
- var xs = scheduler.CreateHotObservable(
- OnNext(180, 1),
- OnNext(210, 2),
- OnNext(250, 3),
- OnNext(270, 4),
- OnNext(310, 5),
- OnNext(360, 6),
- OnNext(380, 7),
- OnNext(410, 8),
- OnNext(590, 9),
- OnCompleted<int>(650)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(1)
- );
- res.Messages.AssertEqual(
- OnNext(250, 2),
- OnNext(270, 3),
- OnNext(310, 4),
- OnNext(360, 5),
- OnNext(380, 6),
- OnNext(410, 7),
- OnNext(590, 8),
- OnCompleted<int>(650)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 650)
- );
- }
- [Fact]
- public void SkipLast_One_Error()
- {
- var scheduler = new TestScheduler();
- var ex = new Exception();
- var xs = scheduler.CreateHotObservable(
- OnNext(180, 1),
- OnNext(210, 2),
- OnNext(250, 3),
- OnNext(270, 4),
- OnNext(310, 5),
- OnNext(360, 6),
- OnNext(380, 7),
- OnNext(410, 8),
- OnNext(590, 9),
- OnError<int>(650, ex)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(1)
- );
- res.Messages.AssertEqual(
- OnNext(250, 2),
- OnNext(270, 3),
- OnNext(310, 4),
- OnNext(360, 5),
- OnNext(380, 6),
- OnNext(410, 7),
- OnNext(590, 8),
- OnError<int>(650, ex)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 650)
- );
- }
- [Fact]
- public void SkipLast_One_Disposed()
- {
- var scheduler = new TestScheduler();
- var xs = scheduler.CreateHotObservable(
- OnNext(180, 1),
- OnNext(210, 2),
- OnNext(250, 3),
- OnNext(270, 4),
- OnNext(310, 5),
- OnNext(360, 6),
- OnNext(380, 7),
- OnNext(410, 8),
- OnNext(590, 9)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(1)
- );
- res.Messages.AssertEqual(
- OnNext(250, 2),
- OnNext(270, 3),
- OnNext(310, 4),
- OnNext(360, 5),
- OnNext(380, 6),
- OnNext(410, 7),
- OnNext(590, 8)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 1000)
- );
- }
- [Fact]
- public void SkipLast_Three_Completed()
- {
- var scheduler = new TestScheduler();
- var xs = scheduler.CreateHotObservable(
- OnNext(180, 1),
- OnNext(210, 2),
- OnNext(250, 3),
- OnNext(270, 4),
- OnNext(310, 5),
- OnNext(360, 6),
- OnNext(380, 7),
- OnNext(410, 8),
- OnNext(590, 9),
- OnCompleted<int>(650)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(3)
- );
- res.Messages.AssertEqual(
- OnNext(310, 2),
- OnNext(360, 3),
- OnNext(380, 4),
- OnNext(410, 5),
- OnNext(590, 6),
- OnCompleted<int>(650)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 650)
- );
- }
- [Fact]
- public void SkipLast_Three_Error()
- {
- var scheduler = new TestScheduler();
- var ex = new Exception();
- var xs = scheduler.CreateHotObservable(
- OnNext(180, 1),
- OnNext(210, 2),
- OnNext(250, 3),
- OnNext(270, 4),
- OnNext(310, 5),
- OnNext(360, 6),
- OnNext(380, 7),
- OnNext(410, 8),
- OnNext(590, 9),
- OnError<int>(650, ex)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(3)
- );
- res.Messages.AssertEqual(
- OnNext(310, 2),
- OnNext(360, 3),
- OnNext(380, 4),
- OnNext(410, 5),
- OnNext(590, 6),
- OnError<int>(650, ex)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 650)
- );
- }
- [Fact]
- public void SkipLast_Three_Disposed()
- {
- var scheduler = new TestScheduler();
- var xs = scheduler.CreateHotObservable(
- OnNext(180, 1),
- OnNext(210, 2),
- OnNext(250, 3),
- OnNext(270, 4),
- OnNext(310, 5),
- OnNext(360, 6),
- OnNext(380, 7),
- OnNext(410, 8),
- OnNext(590, 9)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(3)
- );
- res.Messages.AssertEqual(
- OnNext(310, 2),
- OnNext(360, 3),
- OnNext(380, 4),
- OnNext(410, 5),
- OnNext(590, 6)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 1000)
- );
- }
- #endregion
- #region + Timed +
- [Fact]
- public void SkipLast_Timed_ArgumentChecking()
- {
- var xs = Observable.Return(42);
- ReactiveAssert.Throws<ArgumentNullException>(() => Observable.SkipLast(default(IObservable<int>), TimeSpan.FromSeconds(1)));
- ReactiveAssert.Throws<ArgumentOutOfRangeException>(() => Observable.SkipLast(xs, TimeSpan.FromSeconds(-1)));
- ReactiveAssert.Throws<ArgumentNullException>(() => Observable.SkipLast(default(IObservable<int>), TimeSpan.FromSeconds(1), Scheduler.Default));
- ReactiveAssert.Throws<ArgumentNullException>(() => Observable.SkipLast(xs, TimeSpan.FromSeconds(1), default));
- ReactiveAssert.Throws<ArgumentOutOfRangeException>(() => Observable.SkipLast(xs, TimeSpan.FromSeconds(-1), Scheduler.Default));
- }
- [Fact]
- public void SkipLast_Zero1()
- {
- var scheduler = new TestScheduler();
- var xs = scheduler.CreateHotObservable(
- OnNext(210, 1),
- OnNext(220, 2),
- OnCompleted<int>(230)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(TimeSpan.Zero, scheduler)
- );
- res.Messages.AssertEqual(
- OnNext(210, 1),
- OnNext(220, 2),
- OnCompleted<int>(230)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 230)
- );
- }
- [Fact]
- public void SkipLast_Zero2()
- {
- var scheduler = new TestScheduler();
- var xs = scheduler.CreateHotObservable(
- OnNext(210, 1),
- OnNext(220, 2),
- OnNext(230, 3),
- OnCompleted<int>(230)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(TimeSpan.Zero, scheduler)
- );
- res.Messages.AssertEqual(
- OnNext(210, 1),
- OnNext(220, 2),
- OnNext(230, 3),
- OnCompleted<int>(230)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 230)
- );
- }
- [Fact]
- public void SkipLast_Some1()
- {
- var scheduler = new TestScheduler();
- var xs = scheduler.CreateHotObservable(
- OnNext(210, 1),
- OnNext(220, 2),
- OnCompleted<int>(230)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(TimeSpan.FromTicks(15), scheduler)
- );
- res.Messages.AssertEqual(
- OnNext(230, 1),
- OnCompleted<int>(230)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 230)
- );
- }
- [Fact]
- public void SkipLast_Some2()
- {
- var scheduler = new TestScheduler();
- var xs = scheduler.CreateHotObservable(
- OnNext(210, 1),
- OnNext(220, 2),
- OnNext(230, 3),
- OnNext(240, 4),
- OnNext(250, 5),
- OnNext(260, 6),
- OnNext(270, 7),
- OnNext(280, 8),
- OnNext(290, 9),
- OnCompleted<int>(300)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(TimeSpan.FromTicks(45), scheduler)
- );
- res.Messages.AssertEqual(
- OnNext(260, 1),
- OnNext(270, 2),
- OnNext(280, 3),
- OnNext(290, 4),
- OnNext(300, 5),
- OnCompleted<int>(300)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 300)
- );
- }
- [Fact]
- public void SkipLast_All()
- {
- var scheduler = new TestScheduler();
- var xs = scheduler.CreateHotObservable(
- OnNext(210, 1),
- OnNext(220, 2),
- OnCompleted<int>(230)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(TimeSpan.FromTicks(50), scheduler)
- );
- res.Messages.AssertEqual(
- OnCompleted<int>(230)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 230)
- );
- }
- [Fact]
- public void SkipLast_Error()
- {
- var scheduler = new TestScheduler();
- var ex = new Exception();
- var xs = scheduler.CreateHotObservable(
- OnError<int>(210, ex)
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(TimeSpan.FromTicks(50), scheduler)
- );
- res.Messages.AssertEqual(
- OnError<int>(210, ex)
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 210)
- );
- }
- [Fact]
- public void SkipLast_Never()
- {
- var scheduler = new TestScheduler();
- var ex = new Exception();
- var xs = scheduler.CreateHotObservable<int>(
- );
- var res = scheduler.Start(() =>
- xs.SkipLast(TimeSpan.FromTicks(50), scheduler)
- );
- res.Messages.AssertEqual(
- );
- xs.Subscriptions.AssertEqual(
- Subscribe(200, 1000)
- );
- }
- [Fact]
- public void SkipLast_Default1()
- {
- var xs = Observable.Range(0, 10, Scheduler.Default);
- var res = xs.SkipLast(TimeSpan.FromSeconds(60));
- var e = new ManualResetEvent(false);
- var lst = new List<int>();
- res.Subscribe(
- lst.Add,
- () => e.Set()
- );
- e.WaitOne();
- Assert.True(lst.Count == 0);
- }
- [Fact]
- public void SkipLast_Default2()
- {
- var xs = Observable.Range(0, 10, Scheduler.Default);
- var res = xs.SkipLast(TimeSpan.FromSeconds(60), Scheduler.Default.DisableOptimizations());
- var e = new ManualResetEvent(false);
- var lst = new List<int>();
- res.Subscribe(
- lst.Add,
- () => e.Set()
- );
- e.WaitOne();
- Assert.True(lst.Count == 0);
- }
- [Fact]
- public void SkipLast_Default3()
- {
- var xs = Observable.Range(0, 10, Scheduler.Default);
- var res = xs.SkipLast(TimeSpan.Zero);
- var e = new ManualResetEvent(false);
- var lst = new List<int>();
- res.Subscribe(
- lst.Add,
- () => e.Set()
- );
- e.WaitOne();
- Assert.True(lst.SequenceEqual(Enumerable.Range(0, 10)));
- }
- [Fact]
- public void SkipLast_Default4()
- {
- var xs = Observable.Range(0, 10, Scheduler.Default);
- var res = xs.SkipLast(TimeSpan.Zero, Scheduler.Default.DisableOptimizations());
- var e = new ManualResetEvent(false);
- var lst = new List<int>();
- res.Subscribe(
- lst.Add,
- () => e.Set()
- );
- e.WaitOne();
- Assert.True(lst.SequenceEqual(Enumerable.Range(0, 10)));
- }
- #endregion
- }
- }
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