System.Diagnostics.TraceSourceTests.TraceClassTests.WriteLine1Test C# (CSharp) Method

        public void WriteLine1Test()
        {
            var listener = new TestTextTraceListener();
            Trace.Listeners.Add(listener);
            Trace.WriteLine("Message", "Category");
            listener.Flush();
            Assert.Equal("Category: Message" + Environment.NewLine, listener.Output);
        }