Akka.Streams.TestKit.Tests.StreamTestKitSpec.TestSink_Probe_ExpectError_fail_if_no_error_signalled C# (CSharp) Method

        public void TestSink_Probe_ExpectError_fail_if_no_error_signalled()
        {
            Record.Exception(() =>
            {
                Source.From(Enumerable.Range(1, 4)).RunWith(this.SinkProbe<int>(), _materializer)
                    .Request(1)
                    .ExpectError();
            }).Message.Should().Contain("OnNext");
        }