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ReactivePropertyTest.cs
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using R3.Collections;
using System.Collections.Generic;
using System.Diagnostics;
namespace R3.Tests;
public class ReactivePropertyTest
{
[Fact]
public void Test()
{
var rp = new ReactiveProperty<int>(100);
rp.Value.Should().Be(100);
var list = rp.ToLiveList();
list.AssertEqual([100]);
rp.Value = 9999;
var list2 = rp.ToLiveList();
list.AssertEqual([100, 9999]);
list2.AssertEqual([9999]);
rp.Value = 9999;
list.AssertEqual([100, 9999]);
list2.AssertEqual([9999]);
rp.Value = 100;
list.AssertEqual([100, 9999, 100]);
list2.AssertEqual([9999, 100]);
rp.Dispose();
list.AssertIsCompleted();
list2.AssertIsCompleted();
}
[Fact]
public void DefaultValueTest()
{
using var rp = new ReactiveProperty<int>();
rp.Value.Should().Be(default);
}
[Fact]
public void SubscribeAfterCompleted()
{
var rp = new ReactiveProperty<string>("foo");
rp.OnCompleted();
using var list = rp.ToLiveList();
list.AssertIsCompleted();
list.AssertEqual(["foo"]);
}
// Node Check
[Fact]
public void CheckNode()
{
var rp = new ReactiveProperty<int>();
var list1 = rp.ToLiveList();
rp.Value = 1;
list1.AssertEqual([0, 1]);
list1.Dispose();
var list2 = rp.ToLiveList();
rp.Value = 2;
list2.AssertEqual([1, 2]);
var list3 = rp.ToLiveList();
var list4 = rp.ToLiveList();
// remove first
list2.Dispose();
rp.Value = 3;
list3.AssertEqual([2, 3]);
list4.AssertEqual([2, 3]);
var list5 = rp.ToLiveList();
// remove middle
list4.Dispose();
rp.Value = 4;
list3.AssertEqual([2, 3, 4]);
list5.AssertEqual([3, 4]);
// remove last
list5.Dispose();
rp.Value = 5;
list3.AssertEqual([2, 3, 4, 5]);
// remove single
list3.Dispose();
// subscribe once
var list6 = rp.ToLiveList();
rp.Value = 6;
list6.AssertEqual([5, 6]);
}
[Fact]
public void NodeDisposeCheck()
{
{
var rp = new ReactiveProperty<int>(1);
LiveList<int> list1;
LiveList<int> list2;
LiveList<int> list3 = null!;
LiveList<int> list4 = null!;
LiveList<int> list5;
list1 = rp.ToLiveList();
list2 = rp.Take(2).Do(_ => { list3?.Dispose(); list4?.Dispose(); }).ToLiveList();
list3 = rp.ToLiveList();
list4 = rp.ToLiveList();
list5 = rp.ToLiveList();
rp.Value = 10;
list1.AssertEqual([1, 10]);
list2.AssertEqual([1, 10]);
list3.AssertEqual([1]);
list4.AssertEqual([1]);
list5.AssertEqual([1, 10]);
}
{
// Dispose only self.
var rp = new ReactiveProperty<int>(1);
LiveList<int> list1;
LiveList<int> list2;
LiveList<int> list3 = null!;
LiveList<int> list4 = null!;
LiveList<int> list5;
list1 = rp.ToLiveList();
list2 = rp.Take(2).Do(_ => { /* list3?.Dispose(); list4?.Dispose(); */}).ToLiveList();
list3 = rp.ToLiveList();
list4 = rp.ToLiveList();
list5 = rp.ToLiveList();
rp.Value = 10;
list1.AssertEqual([1, 10]);
list2.AssertEqual([1, 10]);
list3.AssertEqual([1, 10]);
list4.AssertEqual([1, 10]);
list5.AssertEqual([1, 10]);
rp.Value = 20;
list1.AssertEqual([1, 10, 20]);
list2.AssertEqual([1, 10]);
list3.AssertEqual([1, 10, 20]);
list4.AssertEqual([1, 10, 20]);
list5.AssertEqual([1, 10, 20]);
}
{
// Dispose only next one.
var rp = new ReactiveProperty<int>(1);
LiveList<int> list1;
LiveList<int> list2;
LiveList<int> list3 = null!;
LiveList<int> list4 = null!;
LiveList<int> list5;
list1 = rp.ToLiveList();
list2 = rp.Do(_ => { list3?.Dispose(); /* list4?.Dispose(); */}).ToLiveList();
list3 = rp.ToLiveList();
list4 = rp.ToLiveList();
list5 = rp.ToLiveList();
rp.Value = 10;
list1.AssertEqual([1, 10]);
list2.AssertEqual([1, 10]);
list3.AssertEqual([1]);
list4.AssertEqual([1, 10]);
list5.AssertEqual([1, 10]);
rp.Value = 20;
list1.AssertEqual([1, 10, 20]);
list2.AssertEqual([1, 10, 20]);
list3.AssertEqual([1]);
list4.AssertEqual([1, 10, 20]);
list5.AssertEqual([1, 10, 20]);
}
{
// Dispose only next next one.
var rp = new ReactiveProperty<int>(1);
LiveList<int> list1;
LiveList<int> list2;
LiveList<int> list3 = null!;
LiveList<int> list4 = null!;
LiveList<int> list5;
list1 = rp.ToLiveList();
list2 = rp.Do(_ => { list4?.Dispose(); }).ToLiveList();
list3 = rp.ToLiveList();
list4 = rp.ToLiveList();
list5 = rp.ToLiveList();
rp.Value = 10;
list1.AssertEqual([1, 10]);
list2.AssertEqual([1, 10]);
list3.AssertEqual([1, 10]);
list4.AssertEqual([1]);
list5.AssertEqual([1, 10]);
rp.Value = 20;
list1.AssertEqual([1, 10, 20]);
list2.AssertEqual([1, 10, 20]);
list3.AssertEqual([1, 10, 20]);
list4.AssertEqual([1]);
list5.AssertEqual([1, 10, 20]);
}
}
[Fact]
public void RecursiveSubscribe()
{
var rp = new ReactiveProperty<int>(0);
List<LiveList<int>> recList = new();
var list = rp.Do(x =>
{
recList.Add(rp.ToLiveList());
})
.ToLiveList();
list.AssertEqual([0]);
recList[0].AssertEqual([0]);
rp.Value = 99;
list.AssertEqual([0, 99]);
recList[0].AssertEqual([0, 99]);
recList[1].AssertEqual([99]);
}
[Fact]
public void RootChangedFromSecond()
{
var p1 = new ReactiveProperty<int>();
var p1List = p1.Skip(1).ToLiveList();
p1.Skip(1).Subscribe().Dispose(); // Subscribe and Dispose
var p3List = p1.Skip(1).ToLiveList();
p1.Value = 1;
p1.Value = 2;
p1List.AssertEqual([1, 2]);
p3List.AssertEqual([1, 2]);
}
[Fact]
public void RemoveLastNode()
{
var log = new List<string>();
var count = 0;
var r = new ReactiveProperty<int>(count);
var ctsA = new CancellationTokenSource();
var ctsB = new CancellationTokenSource();
var ctsC = new CancellationTokenSource();
r.Subscribe(x => log.Add($"A = {x}")).RegisterTo(ctsA.Token);
r.Subscribe(x => log.Add($"B = {x}")).RegisterTo(ctsB.Token);
r.Subscribe(x => log.Add($"C = {x}")).RegisterTo(ctsC.Token);
ctsA.Cancel();
ctsA.Dispose();
log.Add("A disposed");
ctsA = new CancellationTokenSource();
r.Subscribe(x => log.Add($"A = {x}")).RegisterTo(ctsA.Token);
log.Add("A re-registered");
ctsA.Cancel();
ctsA.Dispose();
log.Add("A disposed");
ctsA = new CancellationTokenSource();
r.Subscribe(x => log.Add($"A = {x}")).RegisterTo(ctsA.Token);
log.Add("A re-registered");
r.Value = ++count;
r.Value = ++count;
var actual = string.Join(Environment.NewLine, log);
actual.Should().Be("""
A = 0
B = 0
C = 0
A disposed
A = 0
A re-registered
A disposed
A = 0
A re-registered
B = 1
C = 1
A = 1
B = 2
C = 2
A = 2
""");
}
[Fact]
public void RemoveMiddle()
{
var log = new List<string>();
var p1 = new ReactiveProperty<int>();
p1.Skip(1).Subscribe(x => log.Add("[P1]" + x)); // alive
var d1 = p1.Skip(1).Subscribe(x => log.Add("[P2]" + x));
var d2 = p1.Skip(1).Subscribe(x => log.Add("[P2]" + x));
d1.Dispose();
d2.Dispose();
p1.Skip(1).Subscribe(x => log.Add("[P3]" + x)); // alive
p1.Value = 1;
p1.Value = 2;
var actual = string.Join(Environment.NewLine, log);
actual.Should().Be("""
[P1]1
[P3]1
[P1]2
[P3]2
""");
}
[Fact]
public void RemoveFirst()
{
var log = new List<string>();
var p1 = new ReactiveProperty<int>();
var d1 = p1.Skip(1).Subscribe(x => log.Add("[P1]" + x));
var d2 = p1.Skip(1).Subscribe(x => log.Add("[P2_1]" + x)); // alive
var d3 = p1.Skip(1).Subscribe(x => log.Add("[P2_2]" + x)); // alive
d1.Dispose();
p1.Skip(1).Subscribe(x => log.Add("[P3]" + x)); // alive
p1.Value = 1;
p1.Value = 2;
var actual = string.Join(Environment.NewLine, log);
actual.Should().Be("""
[P2_1]1
[P2_2]1
[P3]1
[P2_1]2
[P2_2]2
[P3]2
""");
}
[Fact]
public void RemoveLast()
{
var log = new List<string>();
var p1 = new ReactiveProperty<int>();
p1.Skip(1).Subscribe(x => log.Add("[P1]" + x)); // alive
var d1 = p1.Skip(1).Subscribe(x => log.Add("[P2]" + x)); // alive
var d2 = p1.Skip(1).Subscribe(x => log.Add("[P2]" + x)); // alive
var d3 = p1.Skip(1).Subscribe(x => log.Add("[P3]" + x));
d3.Dispose();
p1.Value = 1;
p1.Value = 2;
var actual = string.Join(Environment.NewLine, log);
actual.Should().Be("""
[P1]1
[P2]1
[P2]1
[P1]2
[P2]2
[P2]2
""");
}
}