using System;

using System.IO;

using System.Text;

using System.Linq;

using System.Diagnostics;

using System.Reflection;

using System.Threading.Tasks;

using System.Threading;

​

using NUnit.Framework;

using NUnit.Framework.Internal;

​

using ICSharpCode.SharpZipLib.Zip;

using ICSharpCode.SharpZipLib.GZip;

using ICSharpCode.SharpZipLib.Tar;

​

// Test with input that works correctly

Test(Repro, "foo");

​

void Repro(string input) {

    //less than this seems to not cause issues (but I didn't try every value)

    var size = 70000;

    var data = new byte[size];

    var random = new Random(data.Length);

    random.NextBytes(data);

​

    using (var zipStream = new MemoryStream(size * 2))

    {

        using (var zipOutputStream = new ZipOutputStream(zipStream))

        {

            var entry = new ZipEntry("x");

            zipOutputStream.PutNextEntry(entry);

            zipOutputStream.Write(data, 0, data.Length);

            zipOutputStream.CloseEntry();

        }

​

        //we get the underlying buffer instead of .ToArray() so we get extra trailing zeros

        var bughere = zipStream.GetBuffer();

        using (var zipFile = new ZipFile(new MemoryStream(bughere)))

        {

        }

    }

}

​

#region Helpers // These are just a helpers to make the results more legible

​

void Test<T>(Action<T> a, T input) 

{

    // Prevent NUnit from grouping exceptions together

    using var ctx = new TestExecutionContext.IsolatedContext();

    Console.WriteLine($"Testing input \"{input}\"...\n");

    try { 

        a(input);

        Console.WriteLine("\n=> OK!");

    }

    catch (Exception x) {

        Console.WriteLine($"\n=> Failed! ({x.GetType().Name})");    

        Console.WriteLine($"\n{x.Message}");

        var trimmedStack = string.Join("\n", x.StackTrace.Split("\n").Where(l => !l.Contains("ReportFailure")));

        Console.WriteLine($"{trimmedStack}");

    }

    Console.WriteLine($"\n{new string('=', 128)}\n");

}

void Log(string message) => Console.WriteLine($"  {message}");

#endregion