public void when_put_message() { var bytes = Encoding.UTF8.GetBytes("test messages"); var queueWriter = new FileQueueWriter(new DirectoryInfo(_path), "test"); queueWriter.PutMessage(bytes); var files = new DirectoryInfo(_path).GetFiles(); Assert.AreEqual(1, files.Length); Assert.AreEqual("test messages", File.ReadAllText(files[0].FullName)); }