public void Test_TryDispose_disposes_content()
{
var d1 = new BooleanDisposable();
var d = new SingleDisposable(d1);
d.TryDispose().Is(true);
d1.IsDisposed.Is(true);
d.TryDispose().Is(false);
}
public void Test_Content_setter_when_disposed()
{
var d = new SingleDisposable();
d.Dispose();
// New value gets disposed if the container disposed.
var d1 = new BooleanDisposable();
d.Content = d1;
d1.IsDisposed.Is(true);
}
public void Test_IsDisposed()
{
var d = new SingleDisposable();
d.IsDisposed.Is(false);
d.Content = new BooleanDisposable();
d.IsDisposed.Is(false);
d.Dispose();
d.IsDisposed.Is(true);
}
public void Test_Content_setter_concurrency()
{
const int k = 10;
foreach (var round in Enumerable.Range(0, 100))
{
var container = new SingleDisposable();
var ds = Enumerable.Range(0, k).Select(_ => new BooleanDisposable()).ToArray();
Parallel.ForEach(ds, d => container.Content = d);
ds.Where(d => !d.IsDisposed).IsSeq(new[] { (BooleanDisposable)container.Content });
}
}
public void Test_Content_setter()
{
var d = new SingleDisposable();
var d1 = new BooleanDisposable();
var d2 = new BooleanDisposable();
// The first content doesn't get disposed.
d.Content = d1;
d1.IsDisposed.Is(false);
// Second content gets disposed.
d.Content = d2;
d.IsDisposed.Is(false);
d1.IsDisposed.Is(false);
d2.IsDisposed.Is(true);
}
public void Test_Dispose_concurrency()
{
foreach (var round in Enumerable.Range(0, 100))
{
var d = new SingleDisposable();
var d1 = new BooleanDisposable();
// When it gets the content and disposed simultaneously,
// both it and the content get disposed.
Parallel.Invoke(
() => d.Content = d1,
() => d.Dispose()
);
d.IsDisposed.Is(true);
d1.IsDisposed.Is(true);
}
}
public void Test_Content_getter()
{
var d = new SingleDisposable();
var d1 = new BooleanDisposable();
var d2 = new BooleanDisposable();
// The initial content is empty.
d.Content.Is(EmptyDisposable.Instance);
// Get the current content.
d.Content = d1;
d.Content.Is(d1);
// Content doesn't change if set.
d.Content = new BooleanDisposable();
d.Content.Is(d1);
// After disposed, the content becomes empty.
d.Dispose();
d.Content.Is(EmptyDisposable.Instance);
}
