mcs/class/System/Test/System.Diagnostics/StopwatchTest.cs

   1 //
   2 // StopwatchTest.cs
   3 //
   4 // Author:
   5 //      Atsushi Enomoto  <atsushi@ximian.com>
   6 //
   7 // Copyright (C) 2006 Novell, Inc.
   8 //
   9 using System;
  10 using System.Diagnostics;
  11 using System.Threading;
  12 using NUnit.Framework;
  13
  14 namespace MonoTests.System.Diagnostics
  15 {
  16         [TestFixture]
  17         public class StopwatchTest
  18         {
  19                 [Test]
  20                 public void TestSimple ()
  21                 {
  22                         // It starts at started state.
  23                         Stopwatch sw = Stopwatch.StartNew ();
  24                         Thread.Sleep (1000);
  25                         sw.Stop ();
  26                         long ticks = sw.ElapsedTicks;
  27                         Assert.IsTrue (sw.ElapsedMilliseconds > 100, "#1");
  28                         Thread.Sleep (1000);
  29                         // do not increment resuts
  30                         Assert.AreEqual (ticks, sw.ElapsedTicks, "#2");
  31                         sw.Start ();
  32                         Thread.Sleep (1000);
  33                         // increment results
  34                         Assert.IsTrue (sw.ElapsedTicks > ticks, "#3");
  35                         ticks = sw.ElapsedTicks;
  36                         sw.Stop ();
  37                         Assert.IsTrue (sw.ElapsedTicks >= ticks, "#4");
  38                         sw.Reset ();
  39                         Assert.AreEqual (0, sw.ElapsedTicks, "#5");
  40                         sw.Start ();
  41                         Thread.Sleep (1000);
  42                         Assert.IsTrue (sw.ElapsedTicks > 100, "#5");
  43                         // This test is not strict but would mostly work.
  44                         Assert.IsTrue (ticks > sw.ElapsedTicks, "#6");
  45                         sw.Stop ();
  46                 }
  47         }
  48 }