using System;
using System.Text;
using System.Collections.Generic;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Linq;
using Sarand.Net.Standard.Base.Data;

namespace Sacs.UnitTests.Net.Standard.Base.Data
{
	//=======================================================================
	[TestClass]
	public class SacsAesIvCrypter_Tester
	{
		//-------------------------------------------------------------------
		// Data members.
		private static Random random = new Random();

		//-------------------------------------------------------------------
		// Construction.
		public SacsAesIvCrypter_Tester ()
		{
		}

		//-------------------------------------------------------------------
		/// <summary>
		///Gets or sets the test context which provides
		///information about and functionality for the current test run.
		///</summary>
		public TestContext TestContext { get; set; }

		//-------------------------------------------------------------------
		#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() { }
		//
		// Use TestCleanup to run code after each test has run
		// [TestCleanup()]
		// public void MyTestCleanup() { }
		//
		#endregion

		//-------------------------------------------------------------------
		[TestMethod]
		public void SacsAesIvCrypter_Test ()
		{
			for (int i = 0; i < 200; i++)
			{
				String data = RandomString(random.Next(10, 2048), true);
				int dataLength = data.Length;
				String key = RandomString(random.Next(10, 128), true);
				int keyLength = key.Length;
				String encrypted = SacsAesIvCrypter.Encrypt(data, key);
				int encryptedLength = encrypted.Length;
				Assert.AreEqual(data, SacsAesIvCrypter.Decrypt(encrypted, key));
			}
		}

		//-------------------------------------------------------------------
		/// <summary>Generate random alphanumeric string</summary>
		public static String RandomString (int length, bool includeLowerCase = true, bool includeSymbols = true)
		{
			String chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
			if (includeLowerCase) chars += "abcdefghijklmnopqrstuvwxyz";
			if (includeSymbols) chars += "`¬!\"£$%^&*()-=_+{}[];:'@#~<>?/.,\\| ";
			return new string(Enumerable.Repeat(chars, length).Select(s => s[random.Next(s.Length)]).ToArray());
		}

		//-------------------------------------------------------------------
	}
	//=======================================================================
}