detectSoundlevel-spike/sourceCode/trunk/Code/CoreAudioTests/DeviceTopologyApi/IAudioInputSelectorTest.cs

// -----------------------------------------
// SoundScribe (TM) and related software.
// 
// Copyright (C) 2007-2011 Vannatech
// http://www.vannatech.com
// All rights reserved.
// 
// This source code is subject to the MIT License.
// http://www.opensource.org/licenses/mit-license.php
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
// -----------------------------------------

using System;
using CoreAudioTests.Common;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using Vannatech.CoreAudio.Interfaces;
using Vannatech.CoreAudio.Constants;

namespace CoreAudioTests.DeviceTopologyApi
{
	/// <summary>
	/// Tests all methods of the IAudioInputSelector interface.
	/// </summary>
	[TestClass]
	public class IAudioInputSelectorTest : TestClass<IAudioInputSelector>
	{
		/// <summary>
		/// Tests that the selected part ID of the input selector can be received, for each applicable part in the system.
		/// </summary>
		[TestMethod]
		public void IAudioInputSelector_GetSelection()
		{
			ExecutePartActivationTest(activation =>
			{
				var selection = UInt32.MaxValue;
				var result = activation.GetSelection(out selection);

				AssertCoreAudio.IsHResultOk(result);
				Assert.AreNotEqual(UInt32.MaxValue, selection, "The part ID of the selected input was not received.");
			});
		}

		/// <summary>
		/// Tests that the selected part ID of the input selector can be set, for each applicable part in the system.
		/// </summary>
		[TestMethod]
		public void IAudioInputSelector_SetSelection()
		{
			ExecutePartActivationTest(activation =>
			{
				var context = Guid.NewGuid();
				UInt32 valOrig;
				activation.GetSelection(out valOrig);

				Assert.Fail("TODO: Determine how to test SetSelection method properly.");

				// In order to test this we need to enumerate all valid ID of parts attached to the multiplexer.
				// Unknown: Do these IDs need to be for parts directly connected to mux, or endpoint connector IDs.

				var result = activation.SetSelection(0x0, context);
				AssertCoreAudio.IsHResultOk(result);

				result = activation.SetSelection(valOrig, context);
				AssertCoreAudio.IsHResultOk(result);
			});
		}
	}
}