// The following code was generated by Microsoft Visual Studio 2005.
// The test owner should check each test for validity.
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System;
using System.Text;
using System.Collections.Generic;
using CUETools.CDImage;
using CUETools.AccurateRip;
using CUETools.Codecs;
namespace CUETools.TestCodecs
{
	/// <summary>
	///This is a test class for CUETools.AccurateRip.AccurateRipVerify and is intended
	///to contain all CUETools.AccurateRip.AccurateRipVerify Unit Tests
	///</summary>
	[TestClass()]
	public class AccurateRipVerifyTest
	{


		private TestContext testContextInstance;
		private CDImageLayout toc;
		private CDImageLayout toc2;
		private AccurateRipVerify ar;
		private AccurateRipVerify ar2;

		/// <summary>
		///Gets or sets the test context which provides
		///information about and functionality for the current test run.
		///</summary>
		public TestContext TestContext
		{
			get
			{
				return testContextInstance;
			}
			set
			{
				testContextInstance = value;
			}
		}
		#region Additional test attributes
		// 
		//You can use the following additional attributes as you write your tests:
		//
		//Use ClassInitialize to run code before running the first test in the class
		//
		//[ClassInitialize()]
		//public static void MyClassInitialize(TestContext testContext)
		//{
		//}
		//
		//Use ClassCleanup to run code after all tests in a class have run
		//
		//[ClassCleanup()]
		//public static void MyClassCleanup()
		//{
		//}
		//
		//Use TestInitialize to run code before running each test
		//
		[TestInitialize()]
		public void MyTestInitialize()
		{
			toc = new CDImageLayout();
			toc.AddTrack(new CDTrack(1, 13, 55, true, false));
			toc.AddTrack(new CDTrack(2, 68, 31, true, false));
			toc.AddTrack(new CDTrack(3, 99, 37, true, false));
			toc[1][0].Start = 0;
			ar = new AccurateRipVerify(toc, null);

			toc2 = new CDImageLayout();
			toc2.AddTrack(new CDTrack(1, 0, toc.AudioLength, true, false));
			toc2.AddTrack(new CDTrack(2, toc.AudioLength, 750, true, false));
			ar2 = new AccurateRipVerify(toc2, null);

			Random rnd = new Random(2314);
			for (int sector = 0; sector < toc2.AudioLength; sector++)
			{
				AudioBuffer buff = new AudioBuffer(AudioPCMConfig.RedBook, 588);
				buff.Length = 588;
				for (int i = 0; i < buff.Length; i++)
				{
					buff.Samples[i, 0] = rnd.Next(-32768, 32767);
					buff.Samples[i, 1] = rnd.Next(-32768, 32767);
				}
				if (sector < toc.AudioLength)
					ar.Write(buff);
				ar2.Write(buff);
			}
		}
		
		//Use TestCleanup to run code after each test has run
		//
		//[TestCleanup()]
		//public void MyTestCleanup()
		//{
		//}
		//
		#endregion


		/// <summary>
		///A test for CRC32
		///</summary>
		[TestMethod()]
		public void CRC32Test()
		{
			Assert.AreEqual<uint>(2884775698, ar.CRC32(0), "CRC32[0] was not set correctly.");
			Assert.AreEqual<uint>(0474131972, ar.CRC32(1), "CRC32[1] was not set correctly.");
			Assert.AreEqual<uint>(1685633822, ar.CRC32(2), "CRC32[2] was not set correctly.");
			Assert.AreEqual<uint>(2747309238, ar.CRC32(3), "CRC32[3] was not set correctly.");

			Assert.AreEqual<uint>(2884775698, ar2.CRC32(1), "CRC32[1](2) was not set correctly.");
		}

		/// <summary>
		///A test for CRC32
		///</summary>
		[TestMethod()]
		public void CRC32Test1()
		{
			Assert.AreEqual<uint>(2802501111, ar.CRC32(0, 13), "CRC32[0][13] was not set correctly.");
			Assert.AreEqual<uint>(1987827634, ar.CRC32(0, -7), "CRC32[0][-7] was not set correctly.");
			Assert.AreEqual<uint>(1624004597, ar.CRC32(1, 13), "CRC32[1][13] was not set correctly.");
			Assert.AreEqual<uint>(2300462193, ar.CRC32(1, -7), "CRC32[1][-7] was not set correctly.");
			Assert.AreEqual<uint>(0685357040, ar.CRC32(2, 15), "CRC32[2][15] was not set correctly.");
			Assert.AreEqual<uint>(4050516109, ar.CRC32(2, -1), "CRC32[2][-1] was not set correctly.");
			Assert.AreEqual<uint>(1860362251, ar.CRC32(3, 15), "CRC32[3][15] was not set correctly.");
			Assert.AreEqual<uint>(0761448415, ar.CRC32(3, -1), "CRC32[3][-1] was not set correctly.");

			Assert.AreEqual<uint>(1987827634, ar2.CRC32(1, -7), "CRC32[1,13](2) was not set correctly.");
		}

		/// <summary>
		///A test for CRC
		///</summary>
		[TestMethod()]
		public void CRCTest1()
		{
			Assert.AreEqual<uint>(0095215819, ar.CRC(0, -1), "CRC[0][-1] was not set correctly.");
			Assert.AreEqual<uint>(4179900079, ar.CRC(0, 99), "CRC[0][99] was not set correctly.");
			Assert.AreEqual<uint>(3756565509, ar.CRC(1, -3), "CRC[1][-3] was not set correctly.");
			Assert.AreEqual<uint>(1882341590, ar.CRC(1, 11), "CRC[1][11] was not set correctly.");
			Assert.AreEqual<uint>(4121006760, ar.CRC(2, -4), "CRC[2][-4] was not set correctly.");
			Assert.AreEqual<uint>(3648746406, ar.CRC(2, 55), "CRC[2][55] was not set correctly.");
		}

		/// <summary>
		///A test for CRC
		///</summary>
		[TestMethod()]
		public void CRCTest()
		{
			Assert.AreEqual<uint>(1190199900, ar.CRC(0), "CRC[0] was not set correctly.");
			Assert.AreEqual<uint>(1914801336, ar.CRC(1), "CRC[1] was not set correctly.");
			Assert.AreEqual<uint>(1759975763, ar.CRC(2), "CRC[2] was not set correctly.");
		}

		/// <summary>
		///A test for CRCWONULL
		///</summary>
		[TestMethod()]
		public void CRCWONULLTest1()
		{
			Assert.AreEqual<uint>(3376349517, ar.CRCWONULL(2, 19), "CRC32WONULL[2][19] was not set correctly.");
			Assert.AreEqual<uint>(0162318931, ar.CRCWONULL(2, -2), "CRC32WONULL[2][-2] was not set correctly.");
		}

		/// <summary>
		///A test for CRCWONULL
		///</summary>
		[TestMethod()]
		public void CRCWONULLTest()
		{
			Assert.AreEqual<uint>(0509527097, ar.CRCWONULL(0), "CRC32WONULL[0] was not set correctly.");
			Assert.AreEqual<uint>(0474131972, ar.CRCWONULL(1), "CRC32WONULL[1] was not set correctly.");
			Assert.AreEqual<uint>(1405611463, ar.CRCWONULL(2), "CRC32WONULL[2] was not set correctly.");
			Assert.AreEqual<uint>(2747309238, ar.CRCWONULL(3), "CRC32WONULL[3] was not set correctly.");
			Assert.AreEqual<uint>(0509527097, ar2.CRCWONULL(1), "CRC32WONULL[1](2) was not set correctly.");
		}

		/// <summary>
		///A test for CRC450
		///</summary>
		[TestMethod()]
		public void CRC450Test()
		{
			Assert.AreEqual<uint>(1480802016, ar2.CRC450(1, 00), "CRC450[1,00] was not set correctly.");
			Assert.AreEqual<uint>(2012115554, ar2.CRC450(1, 55), "CRC450[1,55] was not set correctly.");
			Assert.AreEqual<uint>(1483829604, ar2.CRC450(1, -3), "CRC450[1,-3] was not set correctly.");
		}


		/// <summary>
		///OffsetSafeCRCRecord
		///</summary>
		[TestMethod()]
		public void OffsetSafeCRCRecordTest()
		{
			OffsetSafeCRCRecord[] records = new OffsetSafeCRCRecord[5000];
			for (int i = 0; i < records.Length; i++)
			{
				var arv = new AccurateRipVerify(toc, null);
				Random rnd = new Random(2314);
				Random rnd2 = new Random(2314);
				for (int k = 0; k < i; k++)
				{
					rnd.Next(-32768, 32767);
					rnd.Next(-32768, 32767);
				}
				int chunk;
				for (int k = 0; k < toc.AudioLength * 588; k += chunk)
				{
					chunk = Math.Min(512 + rnd2.Next(512), (int)toc.AudioLength * 588 - k);
					AudioBuffer buff = new AudioBuffer(AudioPCMConfig.RedBook, chunk);
					buff.Length = chunk;
					for (int s = 0; s < chunk; s++)
					{
						buff.Samples[s, 0] = rnd.Next(-32768, 32767);
						buff.Samples[s, 1] = rnd.Next(-32768, 32767);
					}
					arv.Write(buff);
				}
				records[i] = arv.OffsetSafeCRC;
				arv.Close();
			}

			for (int i = 0; i < records.Length; i++)
			{
				int real_off = -i;
				int off;
				bool found = records[0].FindOffset(records[i], out off);
				if (real_off > 4096 || real_off < -4096)
				{
					Assert.IsFalse(found, string.Format("FindOffset found offset where it shouldn't have, real offset {0}", real_off));
				}
				else
				{
					Assert.IsTrue(found, string.Format("FindOffset failed to detect offset, real offset {0}", real_off));
					Assert.AreEqual(real_off, off, string.Format("FindOffset returned {0}, should be {1}", off, real_off));
				}
				real_off = i;
				found = records[i].FindOffset(records[0], out off);
				if (real_off > 4096 || real_off < -4096)
				{
					Assert.IsFalse(found, string.Format("FindOffset found offset where it shouldn't have, real offset {0}", real_off));
				}
				else
				{
					Assert.IsTrue(found, string.Format("FindOffset failed to detect offset, real offset {0}", real_off));
					Assert.AreEqual(real_off, off, string.Format("FindOffset returned {0}, should be {1}", off, real_off));
				}
			}
		}
	}


}