System.Diagnostics.TraceSourceTests.TraceSourceClassTests.TraceInformationTest C# (CSharp) Method

        public void TraceInformationTest()
        {
            var trace = new TraceSource("TestTraceSource", SourceLevels.All);
            var listener = new TestTraceListener();
            trace.Listeners.Add(listener);
            trace.TraceInformation("message");
            Assert.Equal(0, listener.GetCallCount(Method.TraceData));
            Assert.Equal(0, listener.GetCallCount(Method.Write));
            Assert.Equal(1, listener.GetCallCount(Method.TraceEvent));
            trace.TraceInformation("format", "arg1", "arg2");
            Assert.Equal(2, listener.GetCallCount(Method.TraceEvent));
        }