/src/NUnit/util/StackTraceFilter.cs

// ****************************************************************

// This is free software licensed under the NUnit license. You

// may obtain a copy of the license as well as information regarding

// copyright ownership at http://nunit.org.

// ****************************************************************



namespace NUnit.Util

{

	using System;

	using System.IO;



	/// <summary>

	/// Summary description for StackTraceFilter.

	/// </summary>

	public class StackTraceFilter

	{

		public static string Filter(string stack) 

		{

			if(stack == null) return null;

			StringWriter sw = new StringWriter();

			StringReader sr = new StringReader(stack);



			try 

			{

				string line;

				while ((line = sr.ReadLine()) != null) 

				{

					if (!FilterLine(line))

						sw.WriteLine(line.Trim());

				}

			} 

			catch (Exception) 

			{

				return stack;

			}

			return sw.ToString();

		}



		static bool FilterLine(string line) 

		{

			string[] patterns = new string[]

			{

				"NUnit.Core.TestCase",

				"NUnit.Core.ExpectedExceptionTestCase",

				"NUnit.Core.TemplateTestCase",

				"NUnit.Core.TestResult",

				"NUnit.Core.TestSuite",

				"NUnit.Framework.Assertion", 

				"NUnit.Framework.Assert",

                "System.Reflection.MonoMethod"

			};



			for (int i = 0; i < patterns.Length; i++) 

			{

				if (line.IndexOf(patterns[i]) > 0)

					return true;

			}



			return false;

		}



	}

}