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//
// System.ComponentModel.EventHandlerList test cases
//
// Authors:
// Gonzalo Paniagua Javier (gonzalo@ximian.com)
// Martin Willemoes Hansen (mwh@sysrq.dk)
//
// (c) 2002 Ximian, Inc. (http://www.ximian.com)
// (c) 2003 Martin Willemoes Hansen
//
using NUnit.Framework;
using System;
using System.ComponentModel;
namespace MonoTests.System.ComponentModel
{
[TestFixture]
public class EventHandlerListTests
{
[SetUp]
public void GetReady ()
{
}
int calls = 0;
void Deleg1 (object o, EventArgs e)
{
calls++;
}
void Deleg2 (object o, EventArgs e)
{
calls <<= 1;
}
[Test]
public void All ()
{
EventHandlerList list = new EventHandlerList ();
string i1 = "i1";
string i2 = "i2";
EventHandler one = new EventHandler (Deleg1);
EventHandler two = new EventHandler (Deleg2);
EventHandler d;
Assert.IsNull (list [i1], "All #01");
Assert.IsNull (list [i2], "All #02");
list.AddHandler (i1, one);
d = list [i1] as EventHandler;
Assert.IsNotNull (d, "All #03");
d (this, EventArgs.Empty);
Assert.AreEqual (1, calls, "All #04");
list.AddHandler (i2, two);
d = list [i1] as EventHandler;
Assert.IsNotNull (d, "All #05");
d (this, EventArgs.Empty);
Assert.AreEqual (2, calls, "All #06");
d = list [i2] as EventHandler;
Assert.IsNotNull (d, "All #07");
d (this, EventArgs.Empty);
Assert.AreEqual (4, calls, "All #08");
list.AddHandler (i2, two);
d = list [i2] as EventHandler;
Assert.IsNotNull (d, "All #08");
d (this, EventArgs.Empty);
Assert.AreEqual (16, calls, "All #09");
list.RemoveHandler (i1, one);
d = list [i1] as EventHandler;
Assert.IsNull (d, "All #10");
list.RemoveHandler (i2, two);
d = list [i2] as EventHandler;
Assert.IsNotNull (d, "All #11");
list.RemoveHandler (i2, two);
d = list [i2] as EventHandler;
Assert.IsNull (d, "All #12");
list.AddHandler (i1, one);
d = list [i1] as EventHandler;
Assert.IsNotNull (d, "All #13");
list.AddHandler (i2, two);
d = list [i2] as EventHandler;
Assert.IsNotNull (d, "All #14");
list.AddHandler (i1, null);
Assert.IsNotNull (list [i1], "All #15");
list.AddHandler (i2, null);
Assert.IsNotNull (list [i2], "All #16");
list.Dispose ();
}
[Test]
public void NullKey ()
{
EventHandlerList list = new EventHandlerList ();
EventHandler one = new EventHandler (Deleg1);
list.AddHandler (null, one);
EventHandler d = list [null] as EventHandler;
Assert.IsNotNull (d, "NullKey #01");
list.RemoveHandler (null, one);
d = list [null] as EventHandler;
Assert.IsNull (d, "NullKey #02");
}
}
}
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