public void WriteBits()
{
var stream = new MemoryStream();
var tape = new CasTape(stream);
var data = new bool[]
{
false, false, false, false, false, false, false, true,
false, false, false, false, false, false, true, false,
false, false, false, true, false, false, false, false,
false, false, true, false, false, false, false, false,
true, false, true, false, true, false, true, false,
false, true, false, true, false, true, false, true
};
var expected = new byte[] { 0x01, 0x02, 0x10, 0x20, 0xaa, 0x55 };
foreach (var b in data)
{
tape.WriteBit(b);
}
var actual = stream.GetBuffer();
for (var i = 0; i < expected.Length; i++)
{
Assert.Equal(expected[i], actual[i]);
}
}
public void ReadBytes()
{
var tapedata = new byte[] { 0x01, 0x02, 0x10, 0x20, 0xaa, 0x55 };
var tape = new CasTape(new MemoryStream(tapedata));
foreach (var b in tapedata)
{
Assert.Equal(b, tape.ReadByte());
}
}
public void ReadUnalignedBytes()
{
var tapedate = new byte[] { 0x01, 0x02, 0x10, 0x20, 0xaa, 0x55 };
var expected = new byte[] { 0x08, 0x10, 0x81, 0x05, 0x52 };
var tape = new CasTape(new MemoryStream(tapedate));
tape.ReadBit();
tape.ReadBit();
tape.ReadBit();
foreach (var b in expected)
{
Assert.Equal(b, tape.ReadByte());
}
}
public void WriteBytes()
{
var stream = new MemoryStream();
var tape = new CasTape(stream);
var data = new byte[] { 0x01, 0x02, 0x10, 0x20, 0xaa, 0x55 };
foreach (var b in data)
{
tape.WriteByte(b);
}
var tapedata = stream.GetBuffer();
for (var i = 0; i < data.Length; i++)
{
Assert.Equal(data[i], tapedata[i]);
}
}
private void DumpBlocks(string tapefile)
{
//TODO Print more information about each tape block
using (var tape = new CasTape(new FileStream(tapefile, FileMode.Open, FileAccess.Read)))
{
try
{
while (true)
{
var block = DragonTapeBlock.ReadBlock(tape, 1);
Console.WriteLine(block.ToString());
}
}
catch (EndOfTapeException)
{
return;
}
}
}
public void ReadBits()
{
var tapedata = new byte[] { 0x01, 0x02, 0x10, 0x20, 0xaa, 0x55 };
var expected = new bool[]
{
false, false, false, false, false, false, false, true,
false, false, false, false, false, false, true, false,
false, false, false, true, false, false, false, false,
false, false, true, false, false, false, false, false,
true, false, true, false, true, false, true, false,
false, true, false, true, false, true, false, true
};
var tape = new CasTape(new MemoryStream(tapedata));
foreach (var b in expected)
{
Assert.Equal(b, tape.ReadBit());
}
}
public void ReadBlock_NotSynchronized()
{
var tapedata = new byte[] { 0xbc, 0x45, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x3c, 0x00, 0x0f, 0x46, 0x4f, 0x4f, 0x42, 0x41, 0x52, 0x20, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x55, 0x00 };
var tapefile = new MemoryStream(tapedata, false);
var tape = new CasTape(tapefile);
var block = DragonTapeBlock.ReadBlock(tape, 5);
Assert.Equal(DragonTapeBlockType.Header, block.BlockType);
Assert.Equal(15, block.Length);
Assert.Equal(0x08, block.Checksum);
var headerblock = (DragonTapeHeaderBlock)block;
Assert.Equal("FOOBAR", headerblock.Filename);
Assert.Equal(DragonFileType.Basic, headerblock.FileType);
Assert.False(headerblock.IsAscii);
Assert.False(headerblock.IsGapped);
block.Validate();
}