// Copyright (c) AlphaSierraPapa for the SharpDevelop Team (for details please see \doc\copyright.txt)
// This code is distributed under the GNU LGPL (for details please see \doc\license.txt)

using System;
using System.Linq;
using ICSharpCode.AvalonEdit.Document;
using NUnit.Framework;

namespace ICSharpCode.AvalonEdit.Search
{
	[TestFixture]
	public class FindTests
	{
		[Test]
		public void SkipWordBorderSimple()
		{
			var strategy = SearchStrategyFactory.Create("All", false, true, SearchMode.Normal);
			var text = new StringTextSource(" FindAllTests ");
			var results = strategy.FindAll(text, 0, text.TextLength).ToArray();
			
			Assert.IsEmpty(results, "No results should be found!");
		}
		
		[Test]
		public void SkipWordBorder()
		{
			var strategy = SearchStrategyFactory.Create("AllTests", false, true, SearchMode.Normal);
			var text = new StringTextSource("name=\"{FindAllTests}\"");
			var results = strategy.FindAll(text, 0, text.TextLength).ToArray();
			
			Assert.IsEmpty(results, "No results should be found!");
		}
		
		[Test]
		public void SkipWordBorder2()
		{
			var strategy = SearchStrategyFactory.Create("AllTests", false, true, SearchMode.Normal);
			var text = new StringTextSource("name=\"FindAllTests ");
			var results = strategy.FindAll(text, 0, text.TextLength).ToArray();
			
			Assert.IsEmpty(results, "No results should be found!");
		}
		
		[Test]
		public void SkipWordBorder3()
		{
			var strategy = SearchStrategyFactory.Create("// find", false, true, SearchMode.Normal);
			var text = new StringTextSource("            // findtest");
			var results = strategy.FindAll(text, 0, text.TextLength).ToArray();
			
			Assert.IsEmpty(results, "No results should be found!");
		}
		
		[Test]
		public void WordBorderTest()
		{
			var strategy = SearchStrategyFactory.Create("// find", false, true, SearchMode.Normal);
			var text = new StringTextSource("            // find me");
			var results = strategy.FindAll(text, 0, text.TextLength).ToArray();
			
			Assert.AreEqual(1, results.Length, "One result should be found!");
			Assert.AreEqual("            ".Length, results[0].Offset);
			Assert.AreEqual("// find".Length, results[0].Length);
		}
		
		[Test]
		public void ResultAtStart()
		{
			var strategy = SearchStrategyFactory.Create("result", false, true, SearchMode.Normal);
			var text = new StringTextSource("result           // find me");
			var results = strategy.FindAll(text, 0, text.TextLength).ToArray();
			
			Assert.AreEqual(1, results.Length, "One result should be found!");
			Assert.AreEqual(0, results[0].Offset);
			Assert.AreEqual("result".Length, results[0].Length);
		}
		
		[Test]
		public void ResultAtEnd()
		{
			var strategy = SearchStrategyFactory.Create("me", false, true, SearchMode.Normal);
			var text = new StringTextSource("result           // find me");
			var results = strategy.FindAll(text, 0, text.TextLength).ToArray();
			
			Assert.AreEqual(1, results.Length, "One result should be found!");
			Assert.AreEqual("result           // find ".Length, results[0].Offset);
			Assert.AreEqual("me".Length, results[0].Length);
		}
		
		[Test]
		public void TextWithDots()
		{
			var strategy = SearchStrategyFactory.Create("Text", false, true, SearchMode.Normal);
			var text = new StringTextSource(".Text.");
			var results = strategy.FindAll(text, 0, text.TextLength).ToArray();
			
			Assert.AreEqual(1, results.Length, "One result should be found!");
			Assert.AreEqual(".".Length, results[0].Offset);
			Assert.AreEqual("Text".Length, results[0].Length);
		}
		
		[Test]
		public void SimpleTest()
		{
			var strategy = SearchStrategyFactory.Create("AllTests", false, false, SearchMode.Normal);
			var text = new StringTextSource("name=\"FindAllTests ");
			var results = strategy.FindAll(text, 0, text.TextLength).ToArray();
			
			Assert.AreEqual(1, results.Length, "One result should be found!");
			Assert.AreEqual("name=\"Find".Length, results[0].Offset);
			Assert.AreEqual("AllTests".Length, results[0].Length);
		}
	}
}