public void DeflateCodec_CompressionDecompressionRoundTrip()
{
var codec = new DeflateCodec();
using (var memoryStream = new MemoryStream())
using (var compressedStream = codec.GetCompressedStreamOver(memoryStream))
{
Assert.IsTrue(compressedStream.CanRead);
Assert.IsTrue(compressedStream.CanWrite);
Assert.IsTrue(compressedStream.CanSeek);
Assert.AreEqual(0, compressedStream.Position);
var expected = Utilities.GetRandom<byte[]>(false);
compressedStream.Write(expected, 0, expected.Length);
compressedStream.Flush();
compressedStream.Seek(0, SeekOrigin.Begin);
using (var decompressedStream = codec.GetDecompressedStreamOver(compressedStream))
{
var actual = new byte[expected.Length];
decompressedStream.Read(actual, 0, actual.Length);
Assert.IsTrue(expected.SequenceEqual(actual));
Assert.IsTrue(decompressedStream.CanRead);
Assert.IsFalse(decompressedStream.CanWrite);
//TODO CanSeek should be 'false' however it is 'true' now although an exception is thrown when Seek() is called
//Assert.IsFalse(decompressedStream.CanSeek);
Utilities.ShouldThrow<NotSupportedException>(() => { var result = decompressedStream.Position; });
Utilities.ShouldThrow<NotSupportedException>(() => { var result = decompressedStream.Length; });
Utilities.ShouldThrow<NotSupportedException>(() => { decompressedStream.Seek(0, SeekOrigin.Begin); });
Utilities.ShouldThrow<NotSupportedException>(() => { decompressedStream.SetLength(0); });
Utilities.ShouldThrow<NotSupportedException>(() => { decompressedStream.Position = 0; });
Utilities.ShouldThrow<NotSupportedException>(() => { decompressedStream.Write(expected, 0, expected.Length); });
compressedStream.Flush();
}
}
}
public void DeflateCodec_GetCompressedStreamFromNull()
{
var codec = new DeflateCodec();
codec.GetCompressedStreamOver(null);
}