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// Copyright (C) 2017, The Duplicati Team
// http://www.duplicati.com, info@duplicati.com
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
using System;
using System.Collections.Generic;
using System.IO;
using NUnit.Framework;
namespace Duplicati.UnitTest
{
[TestFixture]
[Category("Compression")]
public class CompressionTests
{
[Test]
public void TestZipCompressionHints()
{
TestCompressionHints("zip");
}
[Test]
public void Test7zCompressionHints()
{
TestCompressionHints("7z");
}
public void TestCompressionHints(string module)
{
const int TESTSIZE = 1024 * 1024;
using (var tf0 = new Library.Utility.TempFile())
using (var tf1 = new Library.Utility.TempFile())
{
var opts = new Dictionary<string, string>();
opts["zip-compression-level"] = "9";
using (var z0 = Library.DynamicLoader.CompressionLoader.GetModule(module, tf0, opts))
using (var fs0 = z0.CreateFile("sample", Library.Interface.CompressionHint.Noncompressible, DateTime.Now))
fs0.Write(new byte[TESTSIZE], 0, TESTSIZE);
using (var z1 = Library.DynamicLoader.CompressionLoader.GetModule(module, tf1, opts))
using (var fs1 = z1.CreateFile("sample", Library.Interface.CompressionHint.Compressible, DateTime.Now))
fs1.Write(new byte[TESTSIZE], 0, TESTSIZE);
if (new FileInfo(tf0).Length < TESTSIZE)
throw new Exception("Compression hint non-compressible is not honored");
if (new FileInfo(tf1).Length > new FileInfo(tf0).Length * 0.25)
throw new Exception("Compression is not applied");
}
}
}
}
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