using System.Text.RegularExpressions;
using Microsoft.VisualStudio.TestTools.UnitTesting;

namespace Sacs.UnitTests.Net.Standard.Base.Generic
{
	[TestClass]
	public class Regex_Tester
	{
		//-------------------------------------------------------------------
		// Data members.

		//-------------------------------------------------------------------
		[TestMethod]
		public void Regex_FolderPaths()
		{
			Assert.AreEqual(true, Regex.IsMatch("abcabcabc\\.metadata\\.plugins\\abcabcabc", ".*?\\\\\\.metadata\\\\\\.plugins\\\\.*?"));

			// Path ends in.
			Assert.AreEqual(true, Regex.IsMatch("D:\\Home\\Data\\Logs\\App", "[\\\\/]app$", RegexOptions.IgnoreCase));
			Assert.AreEqual(true, Regex.IsMatch("/home/data/logs/app", "[\\\\/]app$", RegexOptions.IgnoreCase));

			// Path doesn't end in.
			Assert.AreEqual(false, Regex.IsMatch("D:\\Home\\Data\\Logs", "[\\\\/]app$", RegexOptions.IgnoreCase));
			Assert.AreEqual(false, Regex.IsMatch("/home/data/logs", "[\\\\/]app$", RegexOptions.IgnoreCase));
		}

		//-------------------------------------------------------------------
		[TestMethod]
		public void Regex_IsMatch()
		{
			string input = "abcdefghi";

			Assert.AreEqual(true, Regex.IsMatch(input, "a"));
			Assert.AreEqual(true, Regex.IsMatch(input, "^a"));
			Assert.AreEqual(true, Regex.IsMatch(input, "d"));
			Assert.AreEqual(true, Regex.IsMatch(input, "i$"));

			// Combination characters.
			Assert.AreEqual(true, Regex.IsMatch(input, "[adg]"));
			Assert.AreEqual(true, Regex.IsMatch(input, "[cba]"));

			// Blank matches input.
			Assert.AreEqual(true, Regex.IsMatch(input, ""));

			// Characters at incorrect position.
			Assert.AreEqual(false, Regex.IsMatch(input, "a$"));
			Assert.AreEqual(false, Regex.IsMatch(input, "^d"));
			Assert.AreEqual(false, Regex.IsMatch(input, "d$"));
			Assert.AreEqual(false, Regex.IsMatch(input, "^i"));

			// Incorrect characters.
			Assert.AreEqual(false, Regex.IsMatch(input, "j"));
			Assert.AreEqual(false, Regex.IsMatch(input, " "));
		}

		//-------------------------------------------------------------------
	}
}