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

        public void FailTest()
        {
            var listener = new TestTraceListener();
            Trace.Listeners.Add(listener);
            Trace.Fail("Text");
            Assert.Equal(1, listener.GetCallCount(Method.Fail));
            Trace.Fail("Text", "Detail");
            Assert.Equal(2, listener.GetCallCount(Method.Fail));
        }