detectSoundlevel-spike/sourceCode/trunk/Code/CoreAudioTests/Wasapi/ISimpleAudioVolumeTest.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.Interfaces;
using Vannatech.CoreAudio.Constants;

namespace CoreAudioTests.Wasapi
{
	/// <summary>
	/// Tests all methods of the ISimpleAudioVolume interface.
	/// </summary>
	[TestClass]
	public class ISimpleAudioVolumeTest : TestClass<ISimpleAudioVolume>
	{
		/// <summary>
		/// Tests that the master volume may be received, for each available service.
		/// </summary>
		[TestMethod]
		public void ISimpleAudioVolume_GetMasterVolume()
		{
			ExecuteServiceTest(service =>
			{
				var volume = 123.456f;
				var result = service.GetMasterVolume(out volume);

				AssertCoreAudio.IsHResultOk(result);
				Assert.AreNotEqual(123.456f, volume, "The master volume was not received.");
			});
		}

		/// <summary>
		/// Tests that the master volume may be received, for each available service.
		/// </summary>
		[TestMethod]
		public void ISimpleAudioVolume_GetMute()
		{
			ExecuteServiceTest(service =>
			{
				var valOne = true;
				var valTwo = false;

				var result = service.GetMute(out valOne);
				AssertCoreAudio.IsHResultOk(result);

				result = service.GetMute(out valTwo);
				AssertCoreAudio.IsHResultOk(result);

				Assert.AreEqual(valOne, valTwo, "The mute state was not received.");
			});
		}

		/// <summary>
		/// Tests that the master volume may be set, for each available service.
		/// </summary>
		[TestMethod]
		public void ISimpleAudioVolume_SetMasterVolume()
		{
			ExecuteServiceTest(service =>
			{
				var context = Guid.NewGuid();
				float valOrig, valNew;
				service.GetMasterVolume(out valOrig);

				// Set to test value.
				var result = service.SetMasterVolume(0.5f, context);
				AssertCoreAudio.IsHResultOk(result);
				service.GetMasterVolume(out valNew);
				Assert.AreEqual(0.5f, valNew, "The master volume was not set.");

				// Return to original value.
				result = service.SetMasterVolume(valOrig, context);
				AssertCoreAudio.IsHResultOk(result);
			});
		}

		/// <summary>
		/// Tests that the mute state may be set, for each available service.
		/// </summary>
		[TestMethod]
		public void ISimpleAudioVolume_SetMute()
		{
			ExecuteServiceTest(service =>
			{
				var context = Guid.NewGuid();
				bool valOrig, valNew;
				service.GetMute(out valOrig);

				// Test set mute to on.
				var result = service.SetMute(true, context);
				AssertCoreAudio.IsHResultOk(result);
				service.GetMute(out valNew);
				Assert.AreEqual(true, valNew, "The mute state was not set.");

				// Test set mute to off.
				result = service.SetMute(false, context);
				AssertCoreAudio.IsHResultOk(result);
				service.GetMute(out valNew);
				Assert.AreEqual(false, valNew, "The mute state was not set.");

				// Return to original value.
				result = service.SetMute(valOrig, context);
				AssertCoreAudio.IsHResultOk(result);
			});
		}
	}
}