System.Diagnostics.Tests.ProcessTests.TestProcessorTime C# (CSharp) Method

        public void TestProcessorTime()
        {
            Assert.True(_process.UserProcessorTime.TotalSeconds >= 0);
            Assert.True(_process.PrivilegedProcessorTime.TotalSeconds >= 0);

            double processorTimeBeforeSpin = Process.GetCurrentProcess().TotalProcessorTime.TotalSeconds;
            double processorTimeAtHalfSpin = 0;
            // Perform loop to occupy cpu, takes less than a second.
            int i = int.MaxValue / 16;
            while (i > 0)
            {
                i--;
                if (i == int.MaxValue / 32)
                    processorTimeAtHalfSpin = Process.GetCurrentProcess().TotalProcessorTime.TotalSeconds;
            }

            Assert.InRange(processorTimeAtHalfSpin, processorTimeBeforeSpin, Process.GetCurrentProcess().TotalProcessorTime.TotalSeconds);
        }