System.IO.Tests.WriteTests.Synchronized_NewObject C# (CSharp) Method

        public void Synchronized_NewObject()
        {
            using (Stream str = CreateStream())
            {
                StreamWriter writer = new StreamWriter(str);
                TextWriter synced = TextWriter.Synchronized(writer);
                Assert.NotEqual(writer, synced);
                writer.Write("app");
                synced.Write("pad");

                writer.Flush();
                synced.Flush();

                str.Position = 0;
                StreamReader reader = new StreamReader(str);
                Assert.Equal("apppad", reader.ReadLine());
            }
        }
    }