public void Sink_ToSeq_must_return_a_SeqT_from_a_Source()
{
var input = Enumerable.Range(1, 6);
var future = Source.From(input).RunWith(Sink.Seq<int>(), Materializer);
future.Wait(300).Should().BeTrue();
future.Result.ShouldAllBeEquivalentTo(input);
}