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//
// Stream Test Helper Classes
//
// Author:
// Sebastien Pouliot <sebastien@ximian.com>
//
// Copyright (C) 2004 Novell (http://www.novell.com)
//
using System;
using System.IO;
namespace MonoTests.System.IO {
public class TestHelperStream : Stream {
private bool _read;
private bool _write;
private bool _seek;
private long _pos;
private long _length;
public TestHelperStream (bool read, bool write, bool seek)
{
_read = read;
_write = write;
_seek = seek;
}
public override bool CanRead {
get { return _read; }
}
public override bool CanSeek {
get { return _seek; }
}
public override bool CanWrite {
get { return _write; }
}
public override long Length {
get { return _length; }
}
public override long Position
{
get {
if (!_seek)
throw new NotSupportedException ("Not seekable");
return _pos;
}
set {
if (!_seek)
throw new NotSupportedException ("Not seekable");
_pos = value;
}
}
public override void Flush ()
{
}
public override int Read (byte[] buffer, int offset, int count)
{
if (!_read)
throw new NotSupportedException ("Not readable");
return count;
}
public override int ReadByte ()
{
return -1;
}
public override long Seek (long offset, SeekOrigin origin)
{
if (!_seek)
throw new NotSupportedException ("Not seekable");
return offset;
}
public override void SetLength (long value)
{
if (!_write)
throw new NotSupportedException ("Not writeable");
_length = value;
}
public override void Write (byte[] buffer, int offset, int count)
{
if (!_write)
throw new NotSupportedException ("Not writeable");
}
public override void WriteByte (byte value)
{
if (!_write)
throw new NotSupportedException ("Not writeable");
}
}
public class ReadOnlyStream : TestHelperStream {
public ReadOnlyStream () : base (true, false, true)
{
}
}
public class WriteOnlyStream : TestHelperStream {
public WriteOnlyStream () : base (false, true, true)
{
}
}
public class NonSeekableStream : TestHelperStream {
public NonSeekableStream () : base (true, true, false)
{
}
}
}
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