Measure NUnit test times

AssemblyInfo.cs

[assembly: MeasureTimeSpan]

MeasureTimeSpanAttribute.cs

    [AttributeUsage(AttributeTargets.Method | AttributeTargets.Class |
                AttributeTargets.Interface | AttributeTargets.Assembly,
                AllowMultiple = true)]
    public class MeasureTimeSpanAttribute : Attribute, ITestAction
    {
        public ActionTargets Targets => ActionTargets.Test | ActionTargets.Suite;
        private Stopwatch _stopwatch;

        public void BeforeTest(ITest test)
        {
            _stopwatch = Stopwatch.StartNew();
        }

        public void AfterTest(ITest test)
        {
            _stopwatch.Stop();
            Console.WriteLine(_stopwatch.Elapsed);
        }
    }