public unsafe void TestBlobStream()
{
byte[] bytes = null;
using (var stream = typeof(BlobTest).GetTypeInfo().Assembly.GetManifestResourceStream("iTunesMusicLibrary.json"))
using (var sr = new BinaryReader(stream)) {
bytes = sr.ReadBytes((int)stream.Length);
}
C4BlobKey key;
long tmp;
using (var stream = new BlobWriteStream(Db.BlobStore)) {
stream.CanSeek.Should().BeFalse();
stream.Invoking(s => tmp = s.Length).ShouldThrow <NotSupportedException>();
stream.Invoking(s => tmp = s.Position).ShouldThrow <NotSupportedException>();
stream.Invoking(s => s.Position = 10).ShouldThrow <NotSupportedException>();
stream.Invoking(s => s.Read(bytes, 0, bytes.Length)).ShouldThrow <NotSupportedException>();
stream.Invoking(s => s.SetLength(100)).ShouldThrow <NotSupportedException>();
stream.Write(bytes, 0, bytes.Length);
stream.Flush();
key = stream.Key;
var canread = stream.CanRead;
}
using (var stream = new BlobReadStream(Db.BlobStore, key)) {
stream.Invoking(s => s.SetLength(100)).ShouldThrow <NotSupportedException>();
stream.CanRead.Should().BeTrue();
stream.CanSeek.Should().BeTrue();
stream.CanWrite.Should().BeFalse();
stream.Length.Should().Be(bytes.Length);
stream.Position.Should().Be(0);
stream.Seek(2, SeekOrigin.Begin);
stream.Position.Should().Be(2);
stream.ReadByte().Should().Be(bytes[2]);
stream.Seek(1, SeekOrigin.Current);
stream.Position.Should().Be(4); // ReadByte advanced the stream
stream.ReadByte().Should().Be(bytes[4]);
stream.Position = 0;
stream.Seek(-2, SeekOrigin.End);
stream.Position.Should().Be(bytes.Length - 2); // ReadByte advanced the stream
stream.ReadByte().Should().Be(bytes[bytes.Length - 2]);
stream.Flush();
}
}
