Akka.Streams.Tests.IO.FileSinkSpec.SynchronousFileSink_should_write_lines_to_a_file C# (CSharp) Method

        public void SynchronousFileSink_should_write_lines_to_a_file()
        {
            this.AssertAllStagesStopped(() =>
            {
                TargetFile(f =>
                {
                    var completion = Source.From(_testByteStrings).RunWith(FileIO.ToFile(f), _materializer);

                    completion.Wait(TimeSpan.FromSeconds(3)).Should().BeTrue();
                    var result = completion.Result;
                    result.Count.Should().Be(6006);
                    CheckFileContent(f, _testLines.Aggregate((s, s1) => s + s1));
                });
            }, _materializer);
        }