public async Task Distribute_pipeline_one_input_two_outputs()
{
var result1 = string.Empty;
var result2 = string.Empty;
var head = new HeadBlock <string>();
var branch1 = new HeadBlock <string>();
var branch2 = new HeadBlock <string>();
head.Process((ct, str, md) => Task.FromResult(str + "A"))
.Process((ct, str, md) => Task.FromResult(str + "-"))
.Distribute(branch1, branch2);
branch1
.Process((ct, str, md) => Task.FromResult(str + "B"))
.Action((ct, str, md) => Task.FromResult(result1 = str));
branch2
.Process((ct, str, md) => Task.FromResult(str + "C"))
.Action((ct, str, md) => Task.FromResult(result2 = str));
var cts = new CancellationTokenSource();
await head.PushAsync(cts.Token, string.Empty, new PipelineMetadata()).ConfigureAwait(false);
result1.Should().Be("A-B");
result2.Should().Be("A-C");
}
public async Task Decision_pipeline_one_input_different_outputs()
{
var result = string.Empty;
var head = new HeadBlock <string>();
var positive = new HeadBlock <string>();
var negative = new HeadBlock <string>();
head.Process((ct, str, md) => Task.FromResult(str + "A"))
.Decision((ct, str, md) =>
Task.FromResult(str == "AA"), positive, negative);
positive
.Process((ct, str, md) => Task.FromResult(str + "B"))
.Action((ct, str, md) => Task.FromResult(result = str));
negative
.Process((ct, str, md) => Task.FromResult(str + "C"))
.Action((ct, str, md) => Task.FromResult(result = str));
var cts = new CancellationTokenSource();
await head.PushAsync(cts.Token, "A", new PipelineMetadata()).ConfigureAwait(false);
result.Should().Be("AAB");
await head.PushAsync(cts.Token, "B", new PipelineMetadata()).ConfigureAwait(false);
result.Should().Be("BAC");
}
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");
}
public async Task Head_with_only_pipeline_should_execute_all_blocks()
{
var result = string.Empty;
var head = new HeadBlock <string>();
head.Process((ct, str, md) => Task.FromResult(str + "A"))
.Process((ct, str, md) => Task.FromResult(str + "B"))
.Process((ct, str, md) => Task.FromResult(str + "C"))
.Action((ct, str, md) => Task.FromResult(result = str));
var cts = new CancellationTokenSource().Token;
await head.PushAsync(cts, string.Empty, new PipelineMetadata()).ConfigureAwait(false);
result.Should().Be("ABC");
}
public async Task Decision_pipeline_has_only_negative_branch()
{
var result = string.Empty;
var head = new HeadBlock <string>();
var negative = new HeadBlock <string>();
head.Process((ct, str, md) => Task.FromResult(str + "A"))
.Decision((ct, str, md) => Task.FromResult(str == "A-"), null, negative);
negative
.Process((ct, str, md) => Task.FromResult(str + "B"))
.Action((ct, str, md) => Task.FromResult(result = str));
var cts = new CancellationTokenSource();
await head.PushAsync(cts.Token, "A", new PipelineMetadata());
result.Should().Be("AAB");
}
public async Task Head_with_generator_should_await_blocks_when_have_two()
{
var result = 0;
var head = new HeadBlock <int>(async(token, func) =>
{
for (var i = 0; i < 4; i++)
{
await func(token, i, new PipelineMetadata());
}
});
head.Process((ct, i, md) => Task.FromResult(i + 1))
.Action((ct, i, md) => Task.FromResult(result += i));
var cts = new CancellationTokenSource().Token;
await head.Start(cts);
result.Should().Be(10);
}
