public void EndsWithSourceBlock_Throws()
{
// arrange
var starting_block = new TransformBlock <string, string> (s => s);
var final_block = new TransformBlock <string, string> (s => s);
starting_block.LinkWithCompletionPropagation(final_block);
// act
Action action = () => new Dataflow <string> (starting_block, final_block);
// assert
action.Should().Throw <ArgumentException> ();
}
public async Task ActionThenTransformBlock_CorrectlyProceed()
{
// arrange
var result = new ConcurrentQueue <string> ();
var starting_block = new TransformBlock <string, string> (s => s);
var final_block = new ActionBlock <string> (s => result.Enqueue(s));
starting_block.LinkWithCompletionPropagation(final_block);
var sut = new Dataflow <string> (starting_block, final_block);
// act
await sut.ProcessAsync(new[] { "a", "b", "c" });
// assert
result.Should().BeEquivalentTo("a", "b", "c");
}
