Added tests for compression filters.

DiscImageChef.Tests/Filters/GZip.cs

@@ -0,0 +1,104 @@
+// /***************************************************************************
+// The Disc Image Chef
+// ----------------------------------------------------------------------------
+//
+// Filename       : GZip.cs
+// Version        : 1.0
+// Author(s)      : Natalia Portillo
+//
+// Component      : Component
+//
+// Revision       : $Revision$
+// Last change by : $Author$
+// Date           : $Date$
+//
+// --[ Description ] ----------------------------------------------------------
+//
+// Description
+//
+// --[ License ] --------------------------------------------------------------
+//
+//     This program is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as
+//     published by the Free Software Foundation, either version 3 of the
+//     License, or (at your option) any later version.
+//
+//     This program 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 General Public License for more details.
+//
+//     You should have received a copy of the GNU General Public License
+//     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ----------------------------------------------------------------------------
+// Copyright (C) 2011-2015 Claunia.com
+// ****************************************************************************/
+// //$Id$
+using System.IO;
+using DiscImageChef.Checksums;
+using DiscImageChef.Filters;
+using NUnit.Framework;
+
+namespace DiscImageChef.Tests.Filters
+{
+    [TestFixture]
+    public class GZip
+    {
+        static readonly byte[] ExpectedFile = { 0x35, 0xe2, 0x9c, 0x9d, 0x05, 0x1b, 0x6d, 0xa6, 0x6c, 0x24, 0xeb, 0x30, 0xe8, 0xd2, 0xa6, 0x6b };
+        static readonly byte[] ExpectedContents = { 0x18, 0x90, 0x5a, 0xf9, 0x83, 0xd8, 0x2b, 0xdd, 0x1a, 0xcc, 0x69, 0x75, 0x4f, 0x0f, 0x81, 0x5e };
+        readonly string location;
+
+        public GZip()
+        {
+            location = Path.Combine(Consts.TestFilesRoot, "filters", "gzip.gz");
+        }
+
+        [Test]
+        public void CheckCorrectFile()
+        {
+            MD5Context ctx = new MD5Context();
+            ctx.Init();
+            byte[] result = ctx.File(location);
+            Assert.AreEqual(ExpectedFile, result);
+        }
+
+        [Test]
+        public void CheckFilterId()
+        {
+            Filter filter = new DiscImageChef.Filters.GZip();
+            Assert.AreEqual(true, filter.Identify(location));
+        }
+
+        [Test]
+        public void Test()
+        {
+            Filter filter = new DiscImageChef.Filters.GZip();
+            filter.Open(location);
+            Assert.AreEqual(true, filter.IsOpened());
+            Assert.AreEqual(1048576, filter.GetDataForkLength());
+            Assert.AreNotEqual(null, filter.GetDataForkStream());
+            Assert.AreEqual(0, filter.GetResourceForkLength());
+            Assert.AreEqual(null, filter.GetResourceForkStream());
+            Assert.AreEqual(false, filter.HasResourceFork());
+            filter.Close();
+        }
+
+        [Test]
+        public void CheckContents()
+        {
+            Filter filter = new DiscImageChef.Filters.GZip();
+            filter.Open(location);
+            Stream str = filter.GetDataForkStream();
+            byte[] data = new byte[1048576];
+            str.Read(data, 0, 1048576);
+            str.Close();
+            str.Dispose();
+            filter.Close();
+            MD5Context ctx = new MD5Context();
+            ctx.Init();
+            ctx.Data(data, out byte[] result);
+            Assert.AreEqual(ExpectedContents, result);
+        }
+    }
+}