//
// Unit tests for NSBlockOperation
//
// Authors:
//	Sebastien Pouliot <sebastien@xamarin.com>
//
// Copyright 2012 Xamarin Inc. All rights reserved.
//

using System;
#if XAMCORE_2_0
using Foundation;
using ObjCRuntime;
#else
using MonoTouch.Foundation;
using MonoTouch.ObjCRuntime;
#endif
using NUnit.Framework;

namespace MonoTouchFixtures.Foundation {
	
	[TestFixture]
	[Preserve (AllMembers = true)]
	public class BlockOperationTest {
		
		[Test]
		[ExpectedException (typeof (ArgumentNullException))]
		public void Create_Null ()
		{
			// Objective-C exception thrown.  Name: NSInvalidArgumentException Reason: *** -[NSBlockOperation addExecutionBlock:]: block is nil
			NSBlockOperation.Create (null);
		}
		
		[Test]
		[ExpectedException (typeof (ArgumentNullException))]
		public void Add_Null ()
		{
			using (var bo = NSBlockOperation.Create (Create_Null)) {
				// Objective-C exception thrown.  Name: NSInvalidArgumentException Reason: *** -[NSBlockOperation addExecutionBlock:]: block is nil
				bo.AddExecutionBlock (null);
			}
		}

		[Test]
		public void ExecutionBlocks ()
		{
			using (var bo = NSBlockOperation.Create (Create_Null)) {
				bo.AddExecutionBlock (Add_Null);
				Assert.That (bo.ExecutionBlocks.Length, Is.EqualTo (2), "ExecutionBlocks");
			}
		}
	}
}