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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;
Assertion.AssertEquals ("All #01", null, list [i1]);
Assertion.AssertEquals ("All #02", null, list [i2]);
list.AddHandler (i1, one);
d = list [i1] as EventHandler;
Assertion.Assert ("All #03", d != null);
d (this, EventArgs.Empty);
Assertion.AssertEquals ("All #04", 1, calls);
list.AddHandler (i2, two);
d = list [i1] as EventHandler;
Assertion.Assert ("All #05", d != null);
d (this, EventArgs.Empty);
Assertion.AssertEquals ("All #06", 2, calls);
d = list [i2] as EventHandler;
Assertion.Assert ("All #07", d != null);
d (this, EventArgs.Empty);
Assertion.AssertEquals ("All #08", 4, calls);
list.AddHandler (i2, two);
d = list [i2] as EventHandler;
Assertion.Assert ("All #08", d != null);
d (this, EventArgs.Empty);
Assertion.AssertEquals ("All #09", 16, calls);
list.RemoveHandler (i1, one);
d = list [i1] as EventHandler;
Assertion.Assert ("All #10", d == null);
list.RemoveHandler (i2, two);
d = list [i2] as EventHandler;
Assertion.Assert ("All #11", d != null);
list.RemoveHandler (i2, two);
d = list [i2] as EventHandler;
Assertion.Assert ("All #12", d == null);
list.AddHandler (i1, one);
d = list [i1] as EventHandler;
Assertion.Assert ("All #13", d != null);
list.AddHandler (i2, two);
d = list [i2] as EventHandler;
Assertion.Assert ("All #14", d != null);
list.AddHandler (i1, null);
Assertion.Assert ("All #15", list [i1] != null);
list.AddHandler (i2, null);
Assertion.Assert ("All #16", list [i2] != null);
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;
Assertion.Assert ("NullKey #01", d != null);
list.RemoveHandler (null, one);
d = list [null] as EventHandler;
Assertion.Assert ("NullKey #02", d == null);
}
}
}
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