using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using UnitTestSharp;
using UnitTestSharp.Extensions;

namespace TestsForUnitTestSharp.Extensions
{
    public class StackTraceExtensionsTests : TestFixture
    {
        public void GetFirstFrameIndexNotInNamespace()
        {
            var stackTrace = new System.Diagnostics.StackTrace();
            CheckEqual(1, stackTrace.GetFirstFrameIndexNotInNamespace("TestsForUnitTestSharp"));
        }

        public void GetFirstFrameIndexNotInNamespace_NoneToIgnore()
        {
            var stackTrace = new System.Diagnostics.StackTrace();
            CheckEqual(0, stackTrace.GetFirstFrameIndexNotInNamespace("Foo"));
        }

        public class ShouldNotShow : UnitTestSharp.TestFixture
        {
            public void StackTrace()
            {
                var stackTrace = new System.Diagnostics.StackTrace();
                string file;
                int? lineNumber;
                string pedigree;
                stackTrace.FindFirstFrameNotInNamespace("TestsForUnitTestSharp")
                          .ExtractCallingMethodInfo(out file, out lineNumber, out pedigree);
                CheckNotEqualRegex("ShouldNotShow::StackTrace", pedigree);
            }
        }
        
        [ShouldShowInStackTrace]
        public class ShouldShow : UnitTestSharp.TestFixture
        {
            public void StackTrace()
            {
                var stackTrace = new System.Diagnostics.StackTrace();
                string file;
                int? lineNumber;
                string pedigree;
                stackTrace.FindFirstFrameNotInNamespace("TestsForUnitTestSharp")
                          .ExtractCallingMethodInfo(out file, out lineNumber, out pedigree);
                CheckEqualRegex("ShouldShow::StackTrace", pedigree);
            }
        }

        public void GetFirstFrameNotInNamespace()
        {
            var stackTrace = new System.Diagnostics.StackTrace();
            string file;
            int? lineNumber;
            string pedigree;
            stackTrace.FindFirstFrameNotInNamespace("TestsForUnitTestSharp")
                      .ExtractCallingMethodInfo(out file, out lineNumber, out pedigree);
            CheckNotEqualRegex("TestsForUnitTestSharp", pedigree);
        }

        public void GetFirstFrameNotInNamespace_BogusNamespaceFilter()
        {
            var stackTrace = new System.Diagnostics.StackTrace();
            string file;
            int? lineNumber;
            string pedigree;
            stackTrace.FindFirstFrameNotInNamespace("Foo")
                      .ExtractCallingMethodInfo(out file, out lineNumber, out pedigree);
            CheckEqualRegex("TestsForUnitTestSharp", pedigree);
        }

        public void FindBoundsOnNotThisNamespace()
        {
            var stackTrace = new System.Diagnostics.StackTrace(true);
            var stackFrames = stackTrace.FindBoundsOnNotThisNamespace("UnitTestSharp");
            CheckEqual(1, stackFrames.Length);
        }

        public void FindBoundsOnNotThisNamespace_BogusNamespace()
        {
            var stackTrace = new System.Diagnostics.StackTrace(true);
            var stackFrames = stackTrace.FindBoundsOnNotThisNamespace("Foo");
            Check(stackFrames.Length > 1);
        }

        [ShouldShowInStackTrace]
        public class FindBoundsOnNotThisNamespace_ShouldShow : UnitTestSharp.TestFixture
        {
            public void StackTrace()
            {
                var stackTrace = new System.Diagnostics.StackTrace(true);
                var stackFrames = stackTrace.FindBoundsOnNotThisNamespace("TestsForUnitTestSharp");
                CheckEqual(stackTrace.GetFrame(0), stackFrames[0]);
            }
        }

        public class FindBoundsOnNotThisNamespace_ShouldNotShow : UnitTestSharp.TestFixture
        {
            public void StackTrace()
            {
                var stackTrace = new System.Diagnostics.StackTrace(true);
                var stackFrames = stackTrace.FindBoundsOnNotThisNamespace("TestsForUnitTestSharp");
                CheckNotEqual(stackTrace.GetFrame(0), stackFrames[0]);
            }
        }
    }
}