Akka.Streams.Tests.Dsl.FlowIntersperseSpec.A_Intersperse_must_inject_element_between_existing_elements C# (CSharp) Method

        public void A_Intersperse_must_inject_element_between_existing_elements()
        {
            var probe =
                Source.From(new[] { 1, 2, 3 })
                    .Select(x => x.ToString())
                    .Intersperse(",")
                    .RunWith(this.SinkProbe<string>(), Materializer);

            probe.ExpectSubscription();
            probe.ToStrict(TimeSpan.FromSeconds(1)).Aggregate((s, s1) => s + s1).Should().Be("1,2,3");
        }