public async Task TryGet_Blocks_The_Call_If_Close_Not_Called_Returns_Added_Element_If_Available()
{
var instance = new PpcBuffer <object>(ConcurrentBuffer.Unbounded, CancellationToken.None);
#if !NETFRAMEWORK && !NETCOREAPP2_2
await using (instance.ConfigureAwait(false))
#else
using (instance)
#endif
{
var obj = new object();
object outObj = null;
var tryGetTask = Task.Run(() => instance.TryGet(Timeout.Infinite, CancellationToken.None, out outObj));
Assert.True(tryGetTask.Status != TaskStatus.RanToCompletion);
instance.Add(obj, CancellationToken.None);
Assert.True(await tryGetTask.ConfigureAwait(false) && ReferenceEquals(outObj, obj));
tryGetTask = Task.Run(() => instance.TryGet(Timeout.Infinite, CancellationToken.None, out outObj));
Assert.True(tryGetTask.Status != TaskStatus.RanToCompletion);
instance.Close();
Assert.False(await tryGetTask.ConfigureAwait(false));
Assert.True(instance.Finished);
}
await Task.CompletedTask;
}
public async Task TryAdd_Returns_False_After_Timeout_When_Buffer_Is_Full()
{
var instance = new PpcBuffer <object>(ConcurrentBuffer.MinSize, CancellationToken.None);
#if !NETFRAMEWORK && !NETCOREAPP2_2
await using (instance.ConfigureAwait(false))
#else
using (instance)
#endif
{
instance.Add(new object(), CancellationToken.None);
Assert.False(instance.TryAdd(new object(), 0, CancellationToken.None));
}
await Task.CompletedTask;
}
public async Task TryGet_Returns_False_After_Close()
{
var instance = new PpcBuffer <object>(ConcurrentBuffer.Unbounded, CancellationToken.None);
#if !NETFRAMEWORK && !NETCOREAPP2_2
await using (instance.ConfigureAwait(false))
#else
using (instance)
#endif
{
instance.Close();
Assert.False(instance.TryGet(Timeout.Infinite, CancellationToken.None, out _));
}
await Task.CompletedTask;
}
public async Task Add_Throws_Error_When_Called_After_Close()
{
var instance = new PpcBuffer <object>(ConcurrentBuffer.Unbounded, CancellationToken.None);
#if !NETFRAMEWORK && !NETCOREAPP2_2
await using (instance.ConfigureAwait(false))
#else
using (instance)
#endif
{
instance.Close();
Assert.Throws <InvalidOperationException>(() => instance.Add(new object(), CancellationToken.None));
}
await Task.CompletedTask;
}
public async Task TryGet_Throws_Error_After_Dispose()
{
var instance = new PpcBuffer <object>(ConcurrentBuffer.Unbounded, CancellationToken.None);
#if !NETFRAMEWORK && !NETCOREAPP2_2
await using (instance.ConfigureAwait(false))
#else
using (instance)
#endif
{
instance.Dispose();
Assert.Throws <NullReferenceException>(() =>
instance.TryGet(Timeout.Infinite, CancellationToken.None, out _));
}
await Task.CompletedTask;
}
public async Task Add_Throws_Error_When_Cancellation_Is_Demanded_Through_Param_Token()
{
using (var cts = new CancellationTokenSource())
{
cts.Cancel();
var instance = new PpcBuffer <object>(ConcurrentBuffer.Unbounded, CancellationToken.None);
#if !NETFRAMEWORK && !NETCOREAPP2_2
await using (instance.ConfigureAwait(false))
#else
using (instance)
#endif
{
Assert.Throws <OperationCanceledException>(() => instance.Add(new object(), cts.Token));
}
await Task.CompletedTask;
}
}
public async Task TryGet_And_Add_Harmonize()
{
var instance = new PpcBuffer <object>(ConcurrentBuffer.Unbounded, CancellationToken.None);
#if !NETFRAMEWORK && !NETCOREAPP2_2
await using (instance.ConfigureAwait(false))
#else
using (instance)
#endif
{
var obj = new object();
instance.Add(obj, CancellationToken.None);
Assert.True(instance.TryGet(Timeout.Infinite, CancellationToken.None, out var newObj) &&
ReferenceEquals(newObj, obj));
instance.Close();
}
await Task.CompletedTask;
}