public async Task Batch_pipeline_one_input_accumulate_to_one_output()
{
var result = new List <string>();
var head = new HeadBlock <string>();
head.Process((ct, str, md) => Task.FromResult(str + "A"))
.Batch(3)
.Process((ct, str, md) => Task.FromResult(string.Join(",", str)))
.Action((ct, str, md) =>
{
result.Add(str);
return(Task.CompletedTask);
});
var cts = new CancellationTokenSource();
await head.PushAsync(cts.Token, "C", new PipelineMetadata()).ConfigureAwait(false);
await head.PushAsync(cts.Token, "C", new PipelineMetadata()).ConfigureAwait(false);
await head.PushAsync(cts.Token, "C", new PipelineMetadata()).ConfigureAwait(false);
// this one will be lost because of the batching
await head.PushAsync(cts.Token, "C", new PipelineMetadata()).ConfigureAwait(false);
await head.FlushAsync(cts.Token).ConfigureAwait(false);
result.Count.Should().Be(2);
result[0].Should().Be("CA,CA,CA");
result[1].Should().Be("CA");
}
