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// MulticastDelegate.cs - NUnit Test Cases for MulticastDelegates (C# delegates)
//
// Daniel Stodden (stodden@in.tum.de)
//
// (C) Daniel Stodden
//
// these are the standard namespaces you will need. You may need to add more
// depending on your tests.
using NUnit.Framework;
using System;
// all test namespaces start with "MonoTests." Append the Namespace that
// contains the class you are testing, e.g. MonoTests.System.Collections
namespace MonoTests.System
{
// the class name should end with "Test" and start with the name of the class
// you are testing, e.g. CollectionBaseTest
public class MulticastDelegateTest : TestCase {
public MulticastDelegateTest() {}
// this method is run before each Test* method is called. You can put
// variable initialization, etc. here that is common to each test.
// Just leave the method empty if you don't need to use it.
protected override void SetUp() {}
// this method is run after each Test* method is called. You can put
// clean-up code, etc. here. Whatever needs to be done after each test.
// Just leave the method empty if you don't need to use it.
protected override void TearDown() {}
private delegate char MyDelegate( ref string s );
private char MethodA( ref string s )
{
s += "a";
return 'a';
}
private char MethodB( ref string s )
{
s += "b";
return 'b';
}
private char MethodC( ref string s )
{
s += "c";
return 'c';
}
private char MethodD( ref string s )
{
s += "d";
return 'd';
}
public void TestEquals()
{
MyDelegate dela = new MyDelegate( MethodA );
MyDelegate delb = new MyDelegate( MethodB );
MyDelegate delc = new MyDelegate( MethodC );
AssertEquals( "#A01", false, dela == delb );
MyDelegate del1, del2;
del1 = dela + delb;
del2 = delb + delc;
AssertEquals( "#A02", false, del1 == del2 );
del1 += delc;
del2 = dela + del2;
AssertEquals( "#A03", true, del1 == del2 );
object o = new object ();
AssertEquals ("#A04", false, dela.Equals (o));
}
public void TestCombineRemove()
{
MyDelegate dela = new MyDelegate( MethodA );
MyDelegate delb = new MyDelegate( MethodB );
MyDelegate delc = new MyDelegate( MethodC );
MyDelegate deld = new MyDelegate( MethodD );
string val;
char res;
// test combine
MyDelegate del1, del2;
del1 = dela + delb + delb + delc + delb + delb + deld;
val = "";
res = del1( ref val );
AssertEquals( "#A01", "abbcbbd", val );
AssertEquals( "#A02", 'd', res );
// test remove
del2 = del1 - ( delb + delb );
val = "";
res = del2( ref val );
AssertEquals( "#A03", "abbcd", val );
AssertEquals( "#A04", 'd', res );
// we did not affect del1, did we?
val = "";
res = del1( ref val );
AssertEquals( "#A05", "abbcbbd", val );
}
}
}
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