public void Test1()
{
// plain pipeline definition objects
PipelineDefinition <string, string> concat4As = new PipelineDefinition <string, string>();
concat4As.Append <AddA>();
concat4As.Append <AddA>();
concat4As.Append <AddA>();
concat4As.Append <AddA>();
concat4As.Append <AddB>();
concat4As.Append <AddB>();
concat4As.Append <AddB>();
concat4As.Append <AddB>();
// ioc fake for pipe construction
IServiceProvider serviceProviderMock = Substitute.For <IServiceProvider>();
serviceProviderMock.GetService(Arg.Is(typeof(AddA))).Returns(new AddA());
serviceProviderMock.GetService(Arg.Is(typeof(AddB))).Returns(new AddB());
IPipeline <string, string> pipe = new AsyncPipeline <string, string>(concat4As, serviceProviderMock);
Stopwatch sw = new Stopwatch();
sw.Start();
string result = (string)pipe.Process("");
sw.Stop();
Assert.True(result == "AAAABBBB");
}