public void A_Log_on_source_must_debug_each_element()
{
Source.From(new[] {1, 2}).Log("flow-s2").RunWith(Sink.Ignore<int>(), Materializer);
var msgs = LogMessages(3);
msgs[0].Should().Be("[flow-s2] Element: 1");
msgs[1].Should().Be("[flow-s2] Element: 2");
msgs[2].Should().Be("[flow-s2] Upstream finished.");
}