Exemple #1
0
        public void testFaviconGZipStreamCompress()
        {
            string sample = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "files", "favicon.ico");

            byte[] uncompressed = File.ReadAllBytes(sample);
            int    before       = uncompressed.Length;

            int after = 0;

            using (MemoryStream ms = new MemoryStream())
            {
                using (ZopfliStream zs = new ZopfliStream(ms, ZopfliFormat.ZOPFLI_FORMAT_GZIP, true))
                {
                    zs.Write(uncompressed, 0, uncompressed.Length);
                }

                // Test if MemoryStream is still leaved open
                ms.Position = 0;
                byte[] compressed = ms.ToArray();
                ms.Length.Should().Equals(compressed.Length);
                after = compressed.Length;
            }

            after.Should().NotBe(30);
            before.Should().BeGreaterThan(after);
        }
Exemple #2
0
        public void testGzipStream()
        {
            // make sure compression works, file should be smaller
            string sample = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "files", "fp.log");

            byte[] uncompressed = File.ReadAllBytes(sample);
            int    before       = uncompressed.Length;

            byte[] compressed;
            int    after = 0;

            // test gzip stream compression code
            using (MemoryStream compressStream = new MemoryStream())
                using (ZopfliStream compressor = new ZopfliStream(compressStream, ZopfliFormat.ZOPFLI_FORMAT_GZIP))
                {
                    compressor.Write(uncompressed, 0, before);
                    compressor.Close();
                    compressed = compressStream.ToArray();
                    after      = compressed.Length;
                }

            before.Should().BeGreaterThan(after);

            // make sure we can decompress the file using built-in .net
            byte[] decompressedBytes = new byte[before];
            using (MemoryStream tempStream = new MemoryStream(compressed))
                using (System.IO.Compression.GZipStream decompressionStream = new System.IO.Compression.GZipStream(tempStream, System.IO.Compression.CompressionMode.Decompress))
                {
                    decompressionStream.Read(decompressedBytes, 0, before);
                }
            uncompressed.Should().Equal(decompressedBytes);

            // use built-in .net compression and make sure zopfil is smaller
            int after_builtin = 0;

            using (MemoryStream compressStream = new MemoryStream())
                using (System.IO.Compression.GZipStream compressor = new System.IO.Compression.GZipStream(compressStream, System.IO.Compression.CompressionLevel.Optimal))
                {
                    compressor.Write(uncompressed, 0, before);
                    compressor.Close();
                    after_builtin = compressStream.ToArray().Length;
                }

            after_builtin.Should().BeGreaterThan(after);
        }
Exemple #3
0
        public void testDeflateStream()
        {
            // make sure compression works, file should be smaller
            byte[] uncompressed = File.ReadAllBytes("files/fp.log");
            int    before       = uncompressed.Length;

            byte[] compressed;
            int    after = 0;

            // test deflate stream compression code
            using (MemoryStream compressStream = new MemoryStream())
                using (ZopfliStream compressor = new ZopfliStream(compressStream, ZopfliFormat.ZOPFLI_FORMAT_DEFLATE))
                {
                    compressor.Write(uncompressed, 0, before);
                    compressor.Close();
                    compressed = compressStream.ToArray();
                    after      = compressed.Length;
                }

            before.Should().BeGreaterThan(after);

            // make sure we can decompress the file using built-in .net
            byte[] decompressedBytes = new byte[before];
            using (System.IO.Compression.DeflateStream decompressionStream = new System.IO.Compression.DeflateStream(new MemoryStream(compressed), System.IO.Compression.CompressionMode.Decompress))
            {
                decompressionStream.Read(decompressedBytes, 0, before);
            }
            uncompressed.Should().Equal(decompressedBytes);

            // use built-in .net compression and make sure zopfil is smaller
            int after_builtin = 0;

            using (MemoryStream compressStream = new MemoryStream())
                using (System.IO.Compression.DeflateStream compressor = new System.IO.Compression.DeflateStream(compressStream, System.IO.Compression.CompressionLevel.Optimal))
                {
                    compressor.Write(uncompressed, 0, before);
                    compressor.Close();
                    after_builtin = compressStream.ToArray().Length;
                }

            after_builtin.Should().BeGreaterThan(after);
        }