detectSoundlevel-spike/sourceCode/trunk/Code/CoreAudioTests/MMDeviceApi/IMMEndpointTest.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
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// 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.Constants;
using Vannatech.CoreAudio.Enumerations;
using Vannatech.CoreAudio.Interfaces;

namespace CoreAudioTests.MMDeviceApi
{
	/// <summary>
	/// Tests all methods of the IMMEndpoint interface.
	/// </summary>
	[TestClass]
	public class IMMEndpointTest
	{
		/// <summary>
		/// Tests that an IMMDevice object can be cast to IMMEndpoint and the method returns a valid data flow, with HRESULT of S_OK.
		/// </summary>
		[TestMethod]
        public void IMMEndpoint_GetDataFlow()
		{
            int result = 0;
            var allDevices = TestUtilities.CreateIMMDeviceCollection(EDataFlow.eAll, DEVICE_STATE_XXX.DEVICE_STATEMASK_ALL);

            foreach (var device in allDevices)
            {
                // Cast compiles to QueryInterface call.
                var endpoint = (IMMEndpoint)device;
                Assert.IsNotNull(endpoint);

                EDataFlow dataFlow = EDataFlow.eAll;
                result = endpoint.GetDataFlow(out dataFlow);

                AssertCoreAudio.IsHResultOk(result);
                Assert.AreNotEqual(EDataFlow.eAll, dataFlow);
            }
		}
	}
}