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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using NUnit.Framework;
using XenCenterLib;

namespace XenAdminTests.MiscTests
{
    [TestFixture, Category(TestCategories.UICategoryB)]
    class StreamUtilitiesTests
    {
        [Test]
        [ExpectedException(typeof(ArgumentNullException))]
        public void BufferedStreamCopyWithNullInputStream()
        {
            using( MemoryStream ms = new MemoryStream() )
            {
               StreamUtilities.BufferedStreamCopy( null, ms ); 
            }
            
        }

        [Test]
        [ExpectedException(typeof(ArgumentNullException))]
        public void BufferedStreamCopyWithNullOutputStream()
        {
            using (MemoryStream ms = new MemoryStream())
            {
                StreamUtilities.BufferedStreamCopy(ms, null);
            }
        }

        [Test]
        public void BufferedStreamCopyWithValidData()
        {
            const string streamContents = "This is a test";
            using (MemoryStream oms = new MemoryStream())
            {
                using (MemoryStream ims = new MemoryStream(Encoding.ASCII.GetBytes(streamContents)))
                {
                    StreamUtilities.BufferedStreamCopy(ims, oms);
                    Assert.AreEqual(ims, oms);
                }
            }
        }
    }
}