System.Diagnostics.TraceSourceTests.TraceClassTests.TraceTest02 C# (CSharp) Method

        public void TraceTest02()
        {
            var textTL = new TestTextTraceListener();
            Trace.Listeners.Add(textTL);
            Trace.IndentLevel = 0;
            Trace.IndentSize = 2;
            Trace.WriteLineIf(true, "Message start.");
            Trace.Indent();
            Trace.Indent();
            Trace.WriteIf(true, "This message should be indented.");
            Trace.WriteIf(false, "This message should be ignored.");
            Trace.Indent();
            Trace.WriteLine("This should not be indented.");
            Trace.WriteLineIf(false, "This message will be ignored");
            Trace.Fail("This failure is reported", "with a detailed message");
            Trace.Assert(false);
            Trace.Assert(false, "This assert is reported");
            Trace.Assert(true, "This assert is not reported");
            Trace.Unindent();
            Trace.Unindent();
            Trace.Unindent();
            Trace.WriteLine("Message end.");
            textTL.Flush();
            String newLine = Environment.NewLine;
            var expected = "Message start." + newLine + "    This message should be indented.This should not be indented." + newLine + "      Fail: This failure is reported with a detailed message" + newLine + "      Fail: " + newLine + "      Fail: This assert is reported" + newLine + "Message end." + newLine;
            Assert.Equal(expected, textTL.Output);
        }
    }