397 lines
9.3 KiB
C#
397 lines
9.3 KiB
C#
//
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// TimerTest.cs - NUnit Test Cases for System.Timers.Timer
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//
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// Author:
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// Kornél Pál <http://www.kornelpal.hu/>
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// Robert Jordan <robertj@gmx.net>
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//
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// Copyright (C) 2005 Kornél Pál
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using NUnit.Framework;
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using System;
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using System.Timers;
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using ST = System.Threading;
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namespace MonoTests.System.Timers
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{
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[TestFixture]
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public class TimerTest
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{
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Timer timer;
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[SetUp]
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public void SetUp ()
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{
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timer = new Timer ();
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}
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[TearDown]
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public void TearDown ()
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{
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timer.Close ();
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}
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[Test]
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public void Constructor0 ()
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{
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Assert.IsTrue (timer.AutoReset, "#1");
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Assert.IsFalse (timer.Enabled, "#2");
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Assert.AreEqual (100, timer.Interval, "#3");
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Assert.IsNull (timer.SynchronizingObject, "#4");
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}
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[Test]
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public void Constructor1 ()
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{
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timer = new Timer (1);
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Assert.IsTrue (timer.AutoReset, "#A1");
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Assert.IsFalse (timer.Enabled, "#A2");
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Assert.AreEqual (1, timer.Interval, "#A3");
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Assert.IsNull (timer.SynchronizingObject, "#A4");
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timer = new Timer (int.MaxValue);
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Assert.IsTrue (timer.AutoReset, "#B1");
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Assert.IsFalse (timer.Enabled, "#B2");
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Assert.AreEqual (int.MaxValue, timer.Interval, "#B3");
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Assert.IsNull (timer.SynchronizingObject, "#B4");
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}
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[Test]
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public void Constructor1_Interval_Negative ()
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{
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try {
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new Timer (-1);
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Assert.Fail ("#1");
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} catch (ArgumentException ex) {
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// Invalid value -1 for parameter interval
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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}
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}
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[Test]
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public void Constructor1_Interval_Zero ()
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{
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try {
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new Timer (0);
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Assert.Fail ("#1");
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} catch (ArgumentException ex) {
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// Invalid value 0 for parameter interval
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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}
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}
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[Test]
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public void Constructor1_Interval_Max ()
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{
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try {
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new Timer (0x80000000);
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Assert.Fail ("#A1");
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} catch (ArgumentException ex) {
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// Invalid value 2147483648 for parameter interval
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#A2");
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Assert.IsNull (ex.InnerException, "#A3");
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Assert.IsNotNull (ex.Message, "#A4");
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}
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try {
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new Timer (double.MaxValue);
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Assert.Fail ("#B1");
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} catch (ArgumentException ex) {
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// Invalid value 1.79769313486232E+308 for parameter interval
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#B2");
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Assert.IsNull (ex.InnerException, "#B3");
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Assert.IsNotNull (ex.Message, "#B4");
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}
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}
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[Test]
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[ExpectedException (typeof (ArgumentException))]
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public void Constructor1_Interval_Max_2 ()
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{
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timer = new Timer (double.MaxValue);
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}
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[Test]
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[ExpectedException (typeof (ArgumentException))]
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public void Constructor1_Interval_Min_1 ()
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{
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timer = new Timer (0);
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}
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[Test]
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[ExpectedException (typeof (ArgumentException))]
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public void Constructor1_Interval_Min_2 ()
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{
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timer = new Timer (-5);
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}
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[Test]
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public void Interval_TooHigh_Disabled_NoThrow ()
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{
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timer.Interval = double.MaxValue;
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Assert.AreEqual (double.MaxValue, timer.Interval, "#3");
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}
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[Test]
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public void Interval_TooHigh_ThrowOnEnabled ()
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{
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timer.Interval = 0x80000000;
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Assert.AreEqual (0x80000000, timer.Interval, "#1");
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try {
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timer.Enabled = true;
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Assert.Fail ("#2");
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} catch (Exception ex) {
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Assert.AreEqual (typeof (ArgumentOutOfRangeException), ex.GetType (), "#3");
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Assert.IsTrue (timer.Enabled);
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}
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}
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[Test]
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[ExpectedException (typeof (ArgumentOutOfRangeException))]
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public void Interval_TooHigh_Enabled_Throw ()
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{
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timer.Interval = 100;
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timer.Enabled = true;
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timer.Interval = double.MaxValue;
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}
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[Test]
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public void DoubleClose_NoThrow ()
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{
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timer.Interval = 100;
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timer.Start ();
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timer.Close ();
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timer.Close ();
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}
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[Test]
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public void DisposedMeansDisabled_NoThrow ()
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{
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timer.Interval = 100;
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timer.Start ();
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timer.Close ();
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Assert.IsFalse (timer.Enabled);
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}
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[Test]
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public void Disposed_ThrowOnEnabled ()
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{
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timer.Interval = 100;
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timer.Start ();
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timer.Close ();
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timer.Enabled = false;
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}
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[Test]
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public void Elapsed_DontFireIfDisposed ()
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{
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timer.Interval = 500;
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var countElapsedCalls = 0;
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timer.Elapsed += (_, __) => { countElapsedCalls++; };
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timer.Start ();
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timer.Close ();
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ST.Thread.Sleep (500);
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Assert.AreEqual (countElapsedCalls, 0);
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}
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[Test]
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public void AutoReset ()
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{
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Assert.IsTrue (timer.AutoReset, "#1");
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timer.AutoReset = false;
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Assert.IsFalse (timer.AutoReset, "#2");
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}
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[Test]
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public void Interval ()
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{
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timer.Interval = 1;
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Assert.AreEqual (1, timer.Interval, "#1");
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timer.Interval = 500;
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Assert.AreEqual (500, timer.Interval, "#2");
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timer.Interval = double.MaxValue;
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Assert.AreEqual (double.MaxValue, timer.Interval, "#3");
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}
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[Test]
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public void Interval_Negative ()
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{
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try {
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timer.Interval = -1;
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Assert.Fail ("#1");
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} catch (ArgumentException ex) {
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// '0' is not a valid value for 'Interval'. 'Interval' must be greater than 0
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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}
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}
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[Test]
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public void Interval_Zero ()
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{
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try {
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timer.Interval = 0;
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Assert.Fail ("#1");
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} catch (ArgumentException ex) {
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// '0' is not a valid value for 'Interval'. 'Interval' must be greater than 0
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Assert.AreEqual (typeof (ArgumentException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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}
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}
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[Test]
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public void StartStopEnabled ()
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{
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timer.Start ();
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Assert.IsTrue (timer.Enabled, "#1");
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timer.Stop ();
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Assert.IsFalse (timer.Enabled, "#2");
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}
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[Test]
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public void CloseEnabled ()
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{
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Assert.IsFalse (timer.Enabled, "#1");
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timer.Enabled = true;
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Assert.IsTrue (timer.Enabled, "#2");
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timer.Close ();
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Assert.IsFalse (timer.Enabled, "#3");
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}
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[Test] // bug https://bugzilla.novell.com/show_bug.cgi?id=325368
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public void EnabledInElapsed ()
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{
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var elapsedCount = 0;
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var mre = new ST.ManualResetEventSlim ();
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timer = new Timer (50);
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timer.AutoReset = false;
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timer.Elapsed += (s, e) =>
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{
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elapsedCount++;
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if (elapsedCount == 1)
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timer.Enabled = true;
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else if (elapsedCount == 2)
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mre.Set ();
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};
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timer.Start ();
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Assert.IsTrue (mre.Wait (1000), "#1 re-enabling timer in Elapsed didn't work");
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Assert.AreEqual (2, elapsedCount, "#2 wrong elapsedCount");
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timer.Stop ();
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}
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[Test]
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public void AutoResetEventFalseStopsFiringElapsed ()
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{
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var elapsedCount = 0;
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var mre = new ST.ManualResetEventSlim ();
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timer = new Timer (50);
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timer.AutoReset = false;
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timer.Elapsed += (s, e) =>
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{
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elapsedCount++;
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if (elapsedCount > 1)
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mre.Set ();
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};
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timer.Start ();
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Assert.IsFalse (mre.Wait (1000), "#1 AutoReset=false didn't stop firing Elapsed, elapsedCount=" + elapsedCount);
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Assert.AreEqual (1, elapsedCount, "#2 wrong elapsedCount");
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timer.Stop ();
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}
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[Test]
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public void TestRaceCondition ()
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{
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Assert.IsTrue (new RaceTest (true).Success, "#1");
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Assert.IsTrue (new RaceTest (false).Success, "#2");
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}
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}
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class RaceTest
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{
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const int Threads = 2;
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const int Loops = 100;
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object locker = new object ();
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Timer timer;
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int counter;
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public bool Success {
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get { return counter > Loops * Threads; }
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}
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public RaceTest (bool autoReset)
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{
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timer = new Timer ();
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timer.AutoReset = autoReset;
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timer.Interval = 100;
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timer.Elapsed += new ElapsedEventHandler (Tick);
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timer.Start ();
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ST.Thread[] tl = new ST.Thread [Threads];
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for (int i = 0; i < Threads; i++) {
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tl [i] = new ST.Thread (new ST.ThreadStart (Run));
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tl [i].Start ();
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}
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for (int i = 0; i < Threads; i++) {
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tl [i].Join ();
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}
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ST.Thread.Sleep (1000);
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}
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void Restart ()
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{
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lock (locker) {
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timer.Stop ();
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timer.Start ();
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}
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ST.Interlocked.Increment (ref counter);
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}
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void Tick (object sender, ElapsedEventArgs e)
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{
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Restart ();
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}
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void Run ()
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{
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for (int i = 0; i < Loops; i++) {
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ST.Thread.Sleep (0);
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Restart ();
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}
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}
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}
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}
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